3 Links to know about: 1. www.patreon.com/smartereveryday You'll notice it's 100% supported by Patrons on Patreon. I'm grateful for that support and do not take it for granted! If you're interested in supporting on Patreon, here's a link! 2. www.crosscreektractor.com/ Give them a call and if Jacob answers the phone tell him his hair is too long. 3. www.smartereveryday.com/email-list - I send every new video out in an email! I won't spam you. Seriously, thanks to everyone who supports on Patreon. It's a big deal and I'm genuinely grateful.
Congrats u just learned basic fire theory. Yes... U need to have a mixture of fuel and oxygen to produce a flame. If the fuel is not mixed with oxygen ur not gonna get combustion.
Hey Destin, Just shared your circuits jingle with our co op today, he couldn’t remember some formulas but twinkle twinkle little star, Power = I^2*R I don’t think he will forget. You should show how injector timing, angles, and use of multiple nozzles is used to make an ideal mix for combustion in a gas engine. There are so many engineering principles in play. We use multiple sprays from multiple nozzles (with changing combinations) in a single injector each time the cylinder fires. I have some cool cutaways and thermal imaging of the inside of a piston, could probably recreate it if I get the time. Keep it up man! Great work
Destin, you inspired me to become an engineer. Years ago when I was fresh out of the military you were kind enough to correspond with me via email about various photography techniques. I now work in aviation engineering. Along that trail to get to where I am today I worked as an automotive mechanic and I have a lot of these tools and a curious mind. It's very difficult to convince myself to be responsible and not try this at home 😂. Thank you for always staying curious and helping to inspire more people to be as well. I promise I probably won't try this at home. Maybe at work though.
That's right, do it at work on the clock! Okay realistically I've had to do a spray-pattern test like twice in 10 years, but it's still fun with the old testers!
I have a PhD in internal combustion engines. I can only say that I love how you approach a subject from its basis. You are an eager experimentalist and the passion you show in your content is inspiring and contagious
I may be wrong, but getting a PhD is about presenting a thesis, not about being part of the research team of a well-stablished initiative or aiding someone in presenting theirs; And if that's the case, you can be a PhD in anything so long as your thesis is accepted.
@Dakoder II Yeah I saw that. Dude was so lucky. The company that made the rifle did some destructive testing and it turned out it was an ammunition problem. I'm not a fan of that breach design, personally think a falling block design would be easier and stronger. That video shows the importance in wearing safety glasses. The plug from that rifle hit his safety glasses instead of him and probably saved his life as I don't believe he would have been conscious otherwise.
@Dakoder II It wasn't because the rifle was cheap, it was because the ammo was severely overcharged. In fact the results would've probably been more severe in any other type of rifle. Mark Serbu (the owner of the company that made the rifle) did full investigation into the matter and was fully transparent every step of the way and Kentucky Ballistics continues to praise him and his guns.
The thing I think people are most attracted to in all of your videos is the fact that you've managed to retain your sense wonder and excitement into your middle age. It's quite infectious, in the best way, and I've tried to do the same thing, myself. Your son is a luck young guy to have a father who is so enthused by things like carburetors and fuel injectors (and the refractive qualities of water, and pneumatically-propelled baseballs, and so on and so on).
Yes! Inventors and engineers are the REAL drivers. Capitalists and executives are largely leeches that slow progress while falsely claiming that they are the ones who cause advancement.
It's so hard to explain how fuel is delivered to a vehicle if somebody has never seen it actually happen. This is literally the best showcase of how fuel injectors work. Amazing job. as always!
@rotoR Col. Diesel engines(from this video) most commonly use a "rack".(the master fuel pump injector system is more conplicated to explain.) The rack is a gear that connects all the pumping pistons. A pump piston squeezes the diesel to increase pressure till its respective injector fires. The pumping piston has a (albeit weird) v groove cut into its side. There is a bypass pinhole in the cylinder. It is worth noting the pump piston and cylinder are rather tight tolerance. What controls the amount of fuel injected is determined by where this v groove passes the bypass hole in the cylinder wall. The pump piston rotates according to the rack position.
Though your videos are extremely interesting and informative, it's your attitude and warmth that keeps me coming back for more. You're an inspiration for us all to be better people. Thanks!
Of course Destin is incredibly knowledgeable and intelligent, but even explaining a very basic concept he has a fantastic way of articulating it. He can express an idea in simplistic, yet in depth ways that gives his audience a full understanding!
As a mechanic myself, I am always impressed by the ingenuity of the people who designed the first engines and automobiles over 100 years ago now! Seriously impressive minds!
I want to thank Smarter Every Day for the incredible footage and well though out demonstrations featured here. I know films like this take days and weeks to create and produce. And thank you for showing us the wonders of every day items. I knew the pressures of a injector, but never knew why, now I do.
I ran into Destin about a year ago right up the street from my house. I tell you what, he is as nice and genuine in person as he is in his videos. I was honestly star struck and probably a bit awkward. But he engaged in a great conversation with me about his videos when he went out on the subs with our US Navy. He is just a great guy. Thanks for more great content, Destin!
Don't forget that, in your experiments, you had air at a pressure of 1 bar. Inside a cylinder you have a higher air pressure, resulting in more air within a smaller volume. This is why your flames only started further away from the nozzle instead of right in front of it, like they would inside a motor. Thanks for introducing this company to me. My father-in-law has an old Ford 1600 that's become increasingly more difficult to keep running due to missing parts. I hope they ship to Europe! :)
@Jakub Staníček in a Diesel engine only air is drawn in on the induction stroke while on a petrol with injection when the engine is sucking in air the injector also injects a metered amount of fuel usually into the inlet ports which then mixes in the cylinder
@Adam Davies Yeah thats clear when you have a carburator, I was just not sure how that works with injection. So only air is pulled in, and the fuel is injected after that?
@Duality I mean, when he is spraying with the injector in the video, a 100% fuel goes through the fuel injector and the oxygen comes from the air around. If you spray into the combustion chamber instead, you need a way to prefill it with fresh air everytime before injection.
@Jakub Staníčekwhat do you mean there is no air inlet. You mean like a carb pulls air and full in with the pistons upstroke? It’s not like that with a fuel injection?
Destin - you are such a Science Nerd! And a higher calling I cannot imagine 😀! Keep up the great work - I am proud to be a Patreon supporter of your awesome content!
Brilliant video as always Destin. I'd love to see a collab on this topic with an F1 team engineer and understand how advanced their fuel injection systems are .
Destin, you and your videos are like a fuel injector for the mind. Thank you! I'm super excited for the electronic fuel injection one, but I'll be patient since I know it gets way more complicated from here!!
Love your channel , i am a crop duster pilot in Brasil and in flight school we did learn all about piston engines but one thing is knowing the teory and another completely different thing is seeing how it work , thank you for improving my knoleged and making me smarter every day you are a great guy!
Thank you, Destin. Your vids always always wake up my 7th grade kid in me who wanted to be an astronaut and loved science, especially physics. I work in a totally different industry now haha. Keep up the good work! God bless you and your family.
That part was amazing when you noticed the fuel ratio gradient. It is amazing to be a mechanical engineer. Theoretical knowledge isn't enough to understand the complexity of these mechanisms. Your videos helped me a lot to understand these things. It is true that particular type of fuel requires certain amount of air to get ignited (stoichiometry ratio is for complete combustion). Thanks buddy @smartereveryday
Nice work Destin! Diesel combustion is an incredibly fascinating topic and there have been so many different attempts to make it work better and better. I have a super old book that describes common rail fuel injection by Italian inventors from the 30's - crazy old ideas are hidden in the history books awaiting rediscovery. I like your torch method for ignition. It's not too far away from reality, especially if you have a really lean flame so there's still sufficienty oxygen in the hot zone to make it combust. One of the challenges with diesel combustion is the mixing process of the fuel and air which is why many older diesels use swirl generated by the intake ports to get as much motion of the air charge as possible during compression. An alternative is to actually use the fuel jets to do the mixing and this is known as a quiescent chamber for obvious reasons. Another diesely problem that is somewhat obvious from your high speed video if you know what to look for is diesel knock. This is where dribbling from the start of the injection allows a large-ish amount of fuel to be injected and mixed before combustion starts which causes it to all go off explosively causing a rapid cylinder pressure rise and exciting all the structural natual frequencies of the engine which we hear sounding something like hammer blows on steel. There are several ways engineers have tried to overcome this, firstly by increasing the crack pressure of the injector but latterly with electronic control the world has been "rate shaping" with multiple pilot injections - 5 to 10 tiny injections prior to the main injection in order to get the combustion started before the injector piles on the coal. This can electronically control the cylinde pressure rise rate (hence the term "rate shaping") and is one of the marvels of today's diesel injection systems. Obviously this has driven the demand for more and faster injection control leading to piezo-actuated injectors now. Truly cool tech! Anyway, thanks for bringing this to the world and for the lovely high speed photography. Like you say, it's truly beautiful if nothing else!
It's really cool to see how they actually work. I'm looking forward to seeing the differences. Hopefully we'll get to see the best methods for keeping them working properly. Hint, hind. :)
Ah Destin, you are priceless. "Not to use crude language, but this looks like a nipple" Definitely one of the best channels on KZclip. Bless your squeaky clean soul.
This is a real contribution showing the awesome detail of what happens thousands of times a minute every day! It's fun, it's so much information in a short time - inspirational!
This was very interesting, and I'll be showing this to my wife as she wants to learn as much about engines as she can. She bought a 1967 Ford Country Sedan Wagon (not the Squire with the wood paneling), and we are having engine work done on it. The thing I was thinking about as Dean was spraying and lighting the fuel in his shop was that this all takes place inside the cylinders, as he showed in the books he found. So this pattern of fuel-air mixture will be more uniform and easier to light off with the spark, making it more efficient than it seemed in the video. The other thought I had when Dean was at the tractor parts factory was I hope this video going public doesn't trigger an OSHA audit, as it looks like some things need to be cleaned up there.
Hey Destin, my family had a small business dealing with Cetane testing, so we spent a LOT of time working with various fuel injectors. We even produced some high speed footage of auto-ignition in a combustion chamber by using a quartz window back in the early 00's. High speed cameras have come a long way since then. I think the cameras we were using were something like 180px horizontal resolution, haha. It's super cool to see the flame propagation through air with such detail! Very cool to see this being covered!
I wonder how a flame would interact with laminar gasoline flow? Because there is no turbulence would it just never ignite, or maybe the flame being a flow of it's own would disturb the laminar flow and cause the turbulence needed for ignition. These are the thoughts you make us think, Destin 😂
@Hero While I agree gasoline shouldn't be used by the uninitiated to start fires. It's still my favorite way to kick off a big fire. Granted, as you point out the timeline needs to be tightly controlled and you still want to be a good 6-10ft back and using a long stick to start it. Lit my hand and leg on fire once trying out a new gasoline 'experiment' (read: me being an idiot).
@Hero Same goes for pouring gasoline on a lit fire. Dangerous, but at least predictable. However, I've seen what happens when someone doesn't pour it close enough and it just pools on the ground, apparently harmless... until it explodes. If gasoline doesn't burn immediately, get back and stay there until it does.
Modern higher efficiency gasoline engines use direct injection like this so it has to be possible some how haha. They use an electronically controlled injector that is way more precise than the injectors shown in this video. Instead of an injection pump having to override a spring they have a constant supply of super high pressure fuel (25000 psi plus) fed to them and an electric solenoid opens and closes a valve to pulse in the fuel. They are so precise that they can fire 20+ times per power stroke of the engine. Crazy fast! Haha.
As the turbulence increases flame front speed increases. This is important becuase at low rpm the time for combustion isn't long enough for the time availible at high rpm. However, as rpm increases the turbulence increases and the flame front from the spark actually travels faster and keeps up with the shortened time allowed for combustion.
I love how you take some of the simplest and well used things around us and explain how they work. As a mechanic I know how they work however it is awesome to see them work in slow motion
Oh wow!! This is so cool!! I’m 38 and I’ve had lots of cars over the years and this is another one of those things that you just don’t think about/take for granted…. Like a light switch or a faucet, I really love this channel Destin. Thank you 😊
You're a great watch Destin, hope you enjoy what you do because we definitely do. The slow mo makes a process many know in their line of work, become interesting for so many reasons! You are inspiring & funny. Legend. God Bless , Jake in Australia.
Very nice. Small note on port injection as well is that fuel will hit the back of a closed hot intake valve to help atomization then enter the combustion chamber
I love how Destin goes from nuclear submarines to tractor parts to apollo mission technology to tractor pulls to the incredibly wide myriad of subjects on his popular videos list. This guy is just a grown up curious little kid who gets to explore all of his dreams and take us along for the ride!
@IndyView Productions I think you would be shocked by the number of people who are completely bereft of curiosity. There is a large swath of our population who without constant stimuli would simply be idle, and merely lament their hunger.
We're all just as curious, but we don't have an 8 core processor like Destin. We're still running windows 95 if we're lucky. 😁 He explains things so well, I understand most everything he says to a good degree. His explanations are worded perfectly so we can understand some rather complex scenarios. Not this one tho. It's easy, I mean, it's fire. argh, argh, argh, FIRE GOOD!!! Great stuff Destin, this looked like it was really fun to do.
I'd imagine his mind works like most of ours... We find a quriosity, look up what we can to satisfy our minds, then move on to the next one. It just takes more to satisfy Justin's mind! We all get to benifit from his quriosity. Works out quite well I think.
The joy of watching high tech rednecks at play! (Can you say supersonic baseball cannon? 😃) Remember, growing old is mandatory. Growing up is optional!
As a young truck mechanic, one of my jobs were to test injectors, and a trick the old fellas gave me was to make pressure peaks while pumping to "clean" the injectors, quite often you could save one with a bad pattern by cycling it with the tester. Also, the needle from a scrapped injector is a really great centerpunch, it is really hard and with a sharp tip, we always used them when centerpunching broken bolts that we drilled out
Great video as usual. I especially liked the perfect demonstration and explanation of the stoichiometric ratio in action. How about a video on an oil burner (heat or hot water)? That would seem like the perfect blend of diesel, fuel injection with spark ignition working together efficiently.
Destin! You should measure the pressure punch and speed that the single flow nozzle produces. Almost like a pressure washer. I think this would be interesting because instead of just checking the pressure it takes to pop the “check valve”, it would measure the quality of the flow!
Getting my A&P and while learning about turbine engines you posted this and it helps so much, I’ll definitely watch again once we do reciprocating engines. Thank you!
Seeing that front of injector view near the end made me realize that's very similar to what we see from nebula burst. We are seeing a stream of particles towards us so the middle is empty, but we see the cloud/ring around it. Very cool.
Please do some videos on proportioning valves and metering valves. I'm studying for my ASE certification, and those things are so cool! It's crazy how they work!
I love how your accent saturation changes depending on when you are narrating vs talking to people. Do you have a saturation dial you turn to adjust how southern you sound. I love it.
@Yora Or works the other way, like a NY/NJ accent has taken over Miami to WPB. I grew up in Jacksonville near the GA border, but always had Northerners since a port and winter retreat in late 1800's, so a mild Southern accent which seems to extend to Waycross, GA. Southern accents vary, from the deep and thoughtful Tidewater VA planter to the twangy Appalachian. The later might be closer to how 1700's Scots talked, maintained due to isolation. BTW, Hollywood usually gets it wrong, showing Confederate flags in Appalachia while most there supported the Union.
Everyone does that. If you're in a different part of a country for a while, you even start imitating the locals. Which isn't a bad thing and they won't notice. To them, that's just your native accent going away.
Thank you Dustin for making yet another very safe KZclip friendly and profitable video. I’m so glad you’ve moved away from unique creative new and interesting content and instead went with fuel injectors and slow motion. Genius
Interesting stuff. I am indeed smarter today then i was yesterday. as a bonus, i always LOVE watching fire/flame in slow-mo! thanks for all the different angles!
You made the coolest POV: you're a piston head. Also, I love the fact that you basically did a free advertising for Cross Creek Also, I love the fact that you always put in little easter eggs in the captioning. Also, I love you man. Glad you've built a patreon that can fully support your videos.
Destin, you should see the injector pattern of a newer Cummins engine operating at 2200 bar or more. The *longest* injection event is just over 3 milliseconds.
It would be awesome to see you do a video with Corridor Digital where you make slow motion flame assets for them to use in their videos. They really appreciate the intricacies of flames and your slowmo footage in this video would really interest them.
Thank you very much for the video's that you put out alot of this stuff people will never get a chance to see you let us into that special few that end up seeing stuff like this it just baffles the mind it's freaking awesome thank you for such awesome footage.
Hey Dustin.. I’m going back to college to learn electrical engineering bc of the inspiration I get from this channel. You’re a goat. And I would love to be able to email You when I have questions.
Freaking cool. Also it's crazy how the t2 judgment day nuclear blast scene is the most accurate when scaling down a deadly event. The slow mo of flames reminded me of that movie.
I just disassembled my entire diesel boat engine bolt by bolt over the last month, and learned a ton just by looking stuff up as I did it. Last year before learning the engine was shot, I got to meet our local fuel injector repairman downtown and he walked me through his refurb process. What a crazy coincidence to see this video recommended to me. Doing stuff for the joy and curiosity of it is just the best, isn’t it? 😊
This is such an easy way to explain LEL and HEL. It's something that I have a hard time explaining to new technicians within my industry. Although we don't use fuel injectors, it does correlate directly to it.
New to your channel and love all that I have watched. But in this one I kept wondering, The fire balls are huge but exactly how much fuel is actually released with each shot?
Amazing. The elder scrolls 6 should have these as their fire effects. Also, i worked around hydraulics for years without understanding there was a multiplication of force happening in hydraulics much like your snatch block video. If you haven’t done a “Hydraulics are awesome” video you should.
Hey Destin, I have a question. Considering how much simpler fuel injectors are in comparison to carburators, why is that the latter was the first standard for machines? Is there something tech special about fuel injectors that justifies that?
Yes, it looks like his mind rapidly went "oops, glad I used safety goggles but if that thing would have caused any bigger fireball, I'd be missing some of my hair nonetheless".
Hey Destin, I would love to see a deep dive into the space shuttle like you did with the Saturn V. The shuttle has always fascinated me, especially landing such a large craft from from space on a (relatively) small runway
Thank you for this video! And thank you for supporting the right to repair! Just one note/correction: in fuel injection engines, the air/fuel mixture happens also upstream to the engine, in the intake manifold (like the carburettor ones), so the mixture enters the cylinders already homogeneous and even. The type of engines where you've got to have perfectly even nozzle spray inside the combustion chambers "downstream" from the intake manifold, are direct injection engines (where it applies what you said about having rich mixture on one side of the cylinders and a lean mixture on the other). Bye!
I fully, 100%, love the fact that you love learning as you do. I've always stood over shoulders trying to soak up as much as I can. I'm also grateful for the internet for this reason. Keep teaching, I'll keep learning....thank you!
Awesome to see the flame catch-up to the misty cloud of fuel. I’m sure you could give the speed of the fuel coming out of the injector, and the speed that the flame reaches to engulf the whole cloud. Looks cool.. cheers for sharing
The last few slomo shot were incredible, I mean i was so mesmerised to see stuff that you cannot normally witness. Thank you Destin for the fantastic content that you share here, and this is what we need.
@SmarterEveryDay I would love to know what those 2 books you referenced were, being in the automotive field I’m always looking to Learn new things. Any help would be greatly appreciated!
Loved this video! Excellent work. When you talked about the burn boundary of the jet I started thinking about ignition alternatives to the torch. For example, as you are applying pressure to the pump lever, there is likely a lever position where optimal fuel has been expelled. At that position, a contact could engage and a spark plug in front of the nozzle could ignite the jet. Then to experiment with burn boundary, the spark plug could be moved closer or further from the nozzle to determine where the optimal fuel-air boundary is, Like you often do with your videos, you get the creative juices going. Thanks.
Hi Destin! You probably won't see this comment, but I just wanted to express my apprecitation for the videos you create! Just watched your videos on how Saturn V and JWST work and I can't express enough how interesting your videos are! Thanks for making us SmarterEveryDay!
Those were some of the clearest, crisp, sharpest slow motion images of fire I've ever seen. Absolutely beautiful and mesmerizing. I absolutely love this channel. Thank you Destin.
It probably helps when the thing you're filming produces it's own light XD Half the difficulty to slow mo shooting is that each frame of video has so little time to collect light that things either need to be really well lit, or end up looking darker, or the shutter speed is adjusted for more light but blurrier images.
Those are in fact the coolest, old books around. Got a set just like them on my shelf at home. Nothing says night time reading like rockets and diesel combustion before bed. :)
I love to see that your boys at Cross Creek tractors are using a Hyster forklift ! I work on Hyster forklift every day! And that was a awesome demonstration of fuel injectors those slow motion shots would make an amazing screen saver it is beautiful .
After, I dunno maybe 10 years, Destin still have me curious and fascinated with nature, science and engineering with the happiness of a child. My first and only "ring the bell" on youtube for a decade, and never regreted!
This was really cool. Maybe a follow up video comparing gasoline and diesel injectors? Or a look at the differences in piston design along with fuel type?
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1. www.patreon.com/smartereveryday You'll notice it's 100% supported by Patrons on Patreon. I'm grateful for that support and do not take it for granted! If you're interested in supporting on Patreon, here's a link!
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3. www.smartereveryday.com/email-list - I send every new video out in an email! I won't spam you.
Seriously, thanks to everyone who supports on Patreon. It's a big deal and I'm genuinely grateful.
@SmarterEveryDay I think you have a bot scammer.
What are those books you reference? I would like to find a set.
Congrats u just learned basic fire theory. Yes... U need to have a mixture of fuel and oxygen to produce a flame. If the fuel is not mixed with oxygen ur not gonna get combustion.
L ppl
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Hey Destin,
Just shared your circuits jingle with our co op today, he couldn’t remember some formulas but twinkle twinkle little star, Power = I^2*R I don’t think he will forget.
You should show how injector timing, angles, and use of multiple nozzles is used to make an ideal mix for combustion in a gas engine.
There are so many engineering principles in play.
We use multiple sprays from multiple nozzles (with changing combinations) in a single injector each time the cylinder fires. I have some cool cutaways and thermal imaging of the inside of a piston, could probably recreate it if I get the time.
Keep it up man! Great work
Thank you Dean for supporting the right to repair and help keep old stuff running.
Dean is awesome so is everybody in this video 🙏👍
I agree
Right to repair and repairable quality products are the ways to live responsibly on the planet.
@Brendandorando Unfortunately most people don’t care. That’s why so many companies do not care and it’s not am actual right.
Unlike crapple products 😢
Destin, you inspired me to become an engineer. Years ago when I was fresh out of the military you were kind enough to correspond with me via email about various photography techniques. I now work in aviation engineering. Along that trail to get to where I am today I worked as an automotive mechanic and I have a lot of these tools and a curious mind. It's very difficult to convince myself to be responsible and not try this at home 😂.
Thank you for always staying curious and helping to inspire more people to be as well. I promise I probably won't try this at home. Maybe at work though.
That's right, do it at work on the clock! Okay realistically I've had to do a spray-pattern test like twice in 10 years, but it's still fun with the old testers!
recently changed my major to engineering based on legends like destin and mark robber
Yeah, at home is definitely not safe, but at work, heck yeah! 😂
I have a PhD in internal combustion engines. I can only say that I love how you approach a subject from its basis. You are an eager experimentalist and the passion you show in your content is inspiring and contagious
I may be wrong, but getting a PhD is about presenting a thesis, not about being part of the research team of a well-stablished initiative or aiding someone in presenting theirs; And if that's the case, you can be a PhD in anything so long as your thesis is accepted.
"PhD in internal combustion engines" doesn't even sound real.
🔫
Where did you get it? You’re an engineer? I’ve never heard of getting a phd in engines.
get your money back, none of those injectors fired correctly.
Watching Destin get bolder with each test was amazing. He went from Super cautious safety nerd, to " hold my beer " after about 4 tries hahaha
The torch came out quick haha
That's a normal amount of tries for us Bama boys
LMFAO...... he went from nerd to "hold my beer" .... that's frickin' funny....
@Dakoder II Yeah I saw that. Dude was so lucky. The company that made the rifle did some destructive testing and it turned out it was an ammunition problem. I'm not a fan of that breach design, personally think a falling block design would be easier and stronger. That video shows the importance in wearing safety glasses. The plug from that rifle hit his safety glasses instead of him and probably saved his life as I don't believe he would have been conscious otherwise.
@Dakoder II It wasn't because the rifle was cheap, it was because the ammo was severely overcharged. In fact the results would've probably been more severe in any other type of rifle. Mark Serbu (the owner of the company that made the rifle) did full investigation into the matter and was fully transparent every step of the way and Kentucky Ballistics continues to praise him and his guns.
The thing I think people are most attracted to in all of your videos is the fact that you've managed to retain your sense wonder and excitement into your middle age. It's quite infectious, in the best way, and I've tried to do the same thing, myself. Your son is a luck young guy to have a father who is so enthused by things like carburetors and fuel injectors (and the refractive qualities of water, and pneumatically-propelled baseballs, and so on and so on).
⤴️📩
So many of us have food on our table because of people like Dean. He deserves some appreciation
Yes! Inventors and engineers are the REAL drivers. Capitalists and executives are largely leeches that slow progress while falsely claiming that they are the ones who cause advancement.
Thats sad.
What a dreary life you lead.
It's so hard to explain how fuel is delivered to a vehicle if somebody has never seen it actually happen. This is literally the best showcase of how fuel injectors work. Amazing job. as always!
Its hard to explain if a person is a simp.
@rotoR Col. Diesel engines(from this video) most commonly use a "rack".(the master fuel pump injector system is more conplicated to explain.) The rack is a gear that connects all the pumping pistons. A pump piston squeezes the diesel to increase pressure till its respective injector fires. The pumping piston has a (albeit weird) v groove cut into its side. There is a bypass pinhole in the cylinder. It is worth noting the pump piston and cylinder are rather tight tolerance. What controls the amount of fuel injected is determined by where this v groove passes the bypass hole in the cylinder wall. The pump piston rotates according to the rack position.
@Andreas Kist. Where was the electricity for the electromagnetic valve in this video.
@bmxscape not a 2 stroke diesel. However, they are complicated to say the least.
Those slo-mo burning patterns were so beautiful. Came for science, stayed for the art.
Yeah, there is not enough ‘writing it down’ for this to be science and not mucking about.
This is my favorite episode of Smarter Every Day. The music, the visuals, and the mechanical engineering - I love it all. Thank you for this video.
Though your videos are extremely interesting and informative, it's your attitude and warmth that keeps me coming back for more. You're an inspiration for us all to be better people. Thanks!
Of course Destin is incredibly knowledgeable and intelligent, but even explaining a very basic concept he has a fantastic way of articulating it. He can express an idea in simplistic, yet in depth ways that gives his audience a full understanding!
I just love all Destins videos! So much great info and seems like such a nice guy! I bet he’s a great friend!
As a mechanic myself, I am always impressed by the ingenuity of the people who designed the first engines and automobiles over 100 years ago now! Seriously impressive minds!
@T-elegrammeSmarter_Every_Day scammer alert
Not really. Why would you call something that at best is only 25% efficient impressive?
13:10 this is why old diesel engines had to be started with an external flame put in to warm the motor
I want to thank Smarter Every Day for the incredible footage and well though out demonstrations featured here. I know films like this take days and weeks to create and produce. And thank you for showing us the wonders of every day items. I knew the pressures of a injector, but never knew why, now I do.
Corvette designed the first gas injection system which was based off diesel.
I ran into Destin about a year ago right up the street from my house. I tell you what, he is as nice and genuine in person as he is in his videos. I was honestly star struck and probably a bit awkward. But he engaged in a great conversation with me about his videos when he went out on the subs with our US Navy. He is just a great guy. Thanks for more great content, Destin!
Don't forget that, in your experiments, you had air at a pressure of 1 bar.
Inside a cylinder you have a higher air pressure, resulting in more air within a smaller volume. This is why your flames only started further away from the nozzle instead of right in front of it, like they would inside a motor.
Thanks for introducing this company to me. My father-in-law has an old Ford 1600 that's become increasingly more difficult to keep running due to missing parts. I hope they ship to Europe! :)
@Jakub Staníček in a Diesel engine only air is drawn in on the induction stroke while on a petrol with injection when the engine is sucking in air the injector also injects a metered amount of fuel usually into the inlet ports which then mixes in the cylinder
@Adam Davies Yeah thats clear when you have a carburator, I was just not sure how that works with injection. So only air is pulled in, and the fuel is injected after that?
@Jakub Staníček there’s something called the induction stroke mate, think you need to look up how an engine works
@Duality I mean, when he is spraying with the injector in the video, a 100% fuel goes through the fuel injector and the oxygen comes from the air around. If you spray into the combustion chamber instead, you need a way to prefill it with fresh air everytime before injection.
@Jakub Staníčekwhat do you mean there is no air inlet. You mean like a carb pulls air and full in with the pistons upstroke? It’s not like that with a fuel injection?
Listening to Destin giggle like a kid in a candy store is great. Proves that he is amazed making these vids as we are watching them.
I was totally mesmerized by the slow-mo fire part of this video. Please don’t stop doing what you’re doing.
Destin - you are such a Science Nerd! And a higher calling I cannot imagine 😀! Keep up the great work - I am proud to be a Patreon supporter of your awesome content!
Well, today I learned some of the fundamentals of fuel injection. Also, I was not expecting those finale slo-mo's to be as extraordinary as they were.
@SuperTornadoGun you’re that tornado guy I see everywhere. I recognize that profile photo.
Same
@SuperTornadoGun pretty sure hes a car guy and has a mclaren, could be wrong tho.
today you watched a guy burn some fuel.
@SuperTornadoGun fr lmao
Brilliant video as always Destin. I'd love to see a collab on this topic with an F1 team engineer and understand how advanced their fuel injection systems are .
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Destin, you and your videos are like a fuel injector for the mind. Thank you!
I'm super excited for the electronic fuel injection one, but I'll be patient since I know it gets way more complicated from here!!
Whenever I have electricity I'm getting smarter every day with you, Destin! Thank you! With love from Ukraine!
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What a wonderful world it would be if more people shared your enthusiasm for science! Very inspiring! Thanks.
Love your channel , i am a crop duster pilot in Brasil and in flight school we did learn all about piston engines but one thing is knowing the teory and another completely different thing is seeing how it work , thank you for improving my knoleged and making me smarter every day you are a great guy!
I adore you and your work so much
Bot with bot likes 🤦🏽♂️
cool
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Wow beautiful
Nice
Thank you, Destin. Your vids always always wake up my 7th grade kid in me who wanted to be an astronaut and loved science, especially physics. I work in a totally different industry now haha. Keep up the good work! God bless you and your family.
That part was amazing when you noticed the fuel ratio gradient. It is amazing to be a mechanical engineer. Theoretical knowledge isn't enough to understand the complexity of these mechanisms. Your videos helped me a lot to understand these things. It is true that particular type of fuel requires certain amount of air to get ignited (stoichiometry ratio is for complete combustion). Thanks buddy @smartereveryday
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Nice work Destin! Diesel combustion is an incredibly fascinating topic and there have been so many different attempts to make it work better and better. I have a super old book that describes common rail fuel injection by Italian inventors from the 30's - crazy old ideas are hidden in the history books awaiting rediscovery.
I like your torch method for ignition. It's not too far away from reality, especially if you have a really lean flame so there's still sufficienty oxygen in the hot zone to make it combust. One of the challenges with diesel combustion is the mixing process of the fuel and air which is why many older diesels use swirl generated by the intake ports to get as much motion of the air charge as possible during compression. An alternative is to actually use the fuel jets to do the mixing and this is known as a quiescent chamber for obvious reasons.
Another diesely problem that is somewhat obvious from your high speed video if you know what to look for is diesel knock. This is where dribbling from the start of the injection allows a large-ish amount of fuel to be injected and mixed before combustion starts which causes it to all go off explosively causing a rapid cylinder pressure rise and exciting all the structural natual frequencies of the engine which we hear sounding something like hammer blows on steel. There are several ways engineers have tried to overcome this, firstly by increasing the crack pressure of the injector but latterly with electronic control the world has been "rate shaping" with multiple pilot injections - 5 to 10 tiny injections prior to the main injection in order to get the combustion started before the injector piles on the coal. This can electronically control the cylinde pressure rise rate (hence the term "rate shaping") and is one of the marvels of today's diesel injection systems. Obviously this has driven the demand for more and faster injection control leading to piezo-actuated injectors now. Truly cool tech!
Anyway, thanks for bringing this to the world and for the lovely high speed photography. Like you say, it's truly beautiful if nothing else!
It's really cool to see how they actually work. I'm looking forward to seeing the differences. Hopefully we'll get to see the best methods for keeping them working properly. Hint, hind. :)
Ah Destin, you are priceless. "Not to use crude language, but this looks like a nipple"
Definitely one of the best channels on KZclip. Bless your squeaky clean soul.
That was awesome to see!!! Thanks for sharing!
woah
This is a real contribution showing the awesome detail of what happens thousands of times a minute every day! It's fun, it's so much information in a short time - inspirational!
Wow thanks for these calming shots of fire.. made my day! Also seeing you having so much fun ❤
This was very interesting, and I'll be showing this to my wife as she wants to learn as much about engines as she can. She bought a 1967 Ford Country Sedan Wagon (not the Squire with the wood paneling), and we are having engine work done on it.
The thing I was thinking about as Dean was spraying and lighting the fuel in his shop was that this all takes place inside the cylinders, as he showed in the books he found. So this pattern of fuel-air mixture will be more uniform and easier to light off with the spark, making it more efficient than it seemed in the video.
The other thought I had when Dean was at the tractor parts factory was I hope this video going public doesn't trigger an OSHA audit, as it looks like some things need to be cleaned up there.
Hey Destin, my family had a small business dealing with Cetane testing, so we spent a LOT of time working with various fuel injectors. We even produced some high speed footage of auto-ignition in a combustion chamber by using a quartz window back in the early 00's. High speed cameras have come a long way since then. I think the cameras we were using were something like 180px horizontal resolution, haha. It's super cool to see the flame propagation through air with such detail! Very cool to see this being covered!
🤩🔥This was an awesome video! Really enjoyed it & very informative!!!👍
I wonder how a flame would interact with laminar gasoline flow? Because there is no turbulence would it just never ignite, or maybe the flame being a flow of it's own would disturb the laminar flow and cause the turbulence needed for ignition. These are the thoughts you make us think, Destin 😂
@Hero While I agree gasoline shouldn't be used by the uninitiated to start fires. It's still my favorite way to kick off a big fire. Granted, as you point out the timeline needs to be tightly controlled and you still want to be a good 6-10ft back and using a long stick to start it. Lit my hand and leg on fire once trying out a new gasoline 'experiment' (read: me being an idiot).
@Hero Same goes for pouring gasoline on a lit fire. Dangerous, but at least predictable. However, I've seen what happens when someone doesn't pour it close enough and it just pools on the ground, apparently harmless... until it explodes. If gasoline doesn't burn immediately, get back and stay there until it does.
Modern higher efficiency gasoline engines use direct injection like this so it has to be possible some how haha. They use an electronically controlled injector that is way more precise than the injectors shown in this video. Instead of an injection pump having to override a spring they have a constant supply of super high pressure fuel (25000 psi plus) fed to them and an electric solenoid opens and closes a valve to pulse in the fuel. They are so precise that they can fire 20+ times per power stroke of the engine. Crazy fast! Haha.
Up vote for Destin to get testin
As the turbulence increases flame front speed increases. This is important becuase at low rpm the time for combustion isn't long enough for the time availible at high rpm. However, as rpm increases the turbulence increases and the flame front from the spark actually travels faster and keeps up with the shortened time allowed for combustion.
I love how you take some of the simplest and well used things around us and explain how they work. As a mechanic I know how they work however it is awesome to see them work in slow motion
Oh wow!! This is so cool!!
I’m 38 and I’ve had lots of cars over the years and this is another one of those things that you just don’t think about/take for granted…. Like a light switch or a faucet, I really love this channel Destin.
Thank you 😊
You're a great watch Destin, hope you enjoy what you do because we definitely do. The slow mo makes a process many know in their line of work, become interesting for so many reasons! You are inspiring & funny. Legend. God Bless , Jake in Australia.
I love so much your content, it's really fun learn this things with you and how you explain it, i'll wait for the next video!
Very nice. Small note on port injection as well is that fuel will hit the back of a closed hot intake valve to help atomization then enter the combustion chamber
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I love how Destin goes from nuclear submarines to tractor parts to apollo mission technology to tractor pulls to the incredibly wide myriad of subjects on his popular videos list.
This guy is just a grown up curious little kid who gets to explore all of his dreams and take us along for the ride!
Click for the chicken head, stay for the rocket surgery
@IndyView Productions I think you would be shocked by the number of people who are completely bereft of curiosity. There is a large swath of our population who without constant stimuli would simply be idle, and merely lament their hunger.
We're all just as curious, but we don't have an 8 core processor like Destin. We're still running windows 95 if we're lucky. 😁
He explains things so well, I understand most everything he says to a good degree. His explanations are worded perfectly so we can understand some rather complex scenarios.
Not this one tho. It's easy, I mean, it's fire.
argh, argh, argh, FIRE GOOD!!!
Great stuff Destin, this looked like it was really fun to do.
I'd imagine his mind works like most of ours... We find a quriosity, look up what we can to satisfy our minds, then move on to the next one.
It just takes more to satisfy Justin's mind!
We all get to benifit from his quriosity.
Works out quite well I think.
The joy of watching high tech rednecks at play! (Can you say supersonic baseball cannon? 😃)
Remember, growing old is mandatory. Growing up is optional!
What a wonderful talent you have for sharing information and teaching! You are a blessing.
Can we talk about how cool Destin's gold rimmed safety glasses are😍
As a young truck mechanic, one of my jobs were to test injectors, and a trick the old fellas gave me was to make pressure peaks while pumping to "clean" the injectors, quite often you could save one with a bad pattern by cycling it with the tester.
Also, the needle from a scrapped injector is a really great centerpunch, it is really hard and with a sharp tip, we always used them when centerpunching broken bolts that we drilled out
Great video as usual. I especially liked the perfect demonstration and explanation of the stoichiometric ratio in action.
How about a video on an oil burner (heat or hot water)? That would seem like the perfect blend of diesel, fuel injection with spark ignition working together efficiently.
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Destin I enjoy the heck out of all your videos, but this one was especially fun. Thanks for making this!
What a dreary life you lead.
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Hi Dustin, thank you for all the great videos and information you provide. Just keep going and we'll keep watching!
Destin! You should measure the pressure punch and speed that the single flow nozzle produces. Almost like a pressure washer. I think this would be interesting because instead of just checking the pressure it takes to pop the “check valve”, it would measure the quality of the flow!
Getting my A&P and while learning about turbine engines you posted this and it helps so much, I’ll definitely watch again once we do reciprocating engines. Thank you!
Seeing that front of injector view near the end made me realize that's very similar to what we see from nebula burst. We are seeing a stream of particles towards us so the middle is empty, but we see the cloud/ring around it. Very cool.
That's awesome! Nice to see a good company like that, making parts for other really important people (farmers etc)... very nice.
Please do some videos on proportioning valves and metering valves. I'm studying for my ASE certification, and those things are so cool! It's crazy how they work!
👆👆Thanks for watching and congratulation 🎊you have been selected among my shortlisted winners.
Telegram only to claim your prize 🎁🥰
I love how your accent saturation changes depending on when you are narrating vs talking to people. Do you have a saturation dial you turn to adjust how southern you sound. I love it.
It was very evident on the tractor pull video too.
@Yora Or works the other way, like a NY/NJ accent has taken over Miami to WPB. I grew up in Jacksonville near the GA border, but always had Northerners since a port and winter retreat in late 1800's, so a mild Southern accent which seems to extend to Waycross, GA. Southern accents vary, from the deep and thoughtful Tidewater VA planter to the twangy Appalachian. The later might be closer to how 1700's Scots talked, maintained due to isolation. BTW, Hollywood usually gets it wrong, showing Confederate flags in Appalachia while most there supported the Union.
Everyone does that. If you're in a different part of a country for a while, you even start imitating the locals.
Which isn't a bad thing and they won't notice. To them, that's just your native accent going away.
@javan napoli Us 'mericans can't tell a British from Aussie accent, nor New Zealand, and still trying to figure out where the Geico lizard is from.
Thank you Dustin for making yet another very safe KZclip friendly and profitable video. I’m so glad you’ve moved away from unique creative new and interesting content and instead went with fuel injectors and slow motion. Genius
It would be nice if you could do a full video on how ignition in engines will a fuel injector works.
Interesting stuff. I am indeed smarter today then i was yesterday. as a bonus, i always LOVE watching fire/flame in slow-mo! thanks for all the different angles!
The gasoline injector flame pattern when viewed head on reminds me of the void bullet from the Expanse. Great episode!
You made the coolest POV: you're a piston head.
Also, I love the fact that you basically did a free advertising for Cross Creek
Also, I love the fact that you always put in little easter eggs in the captioning.
Also, I love you man. Glad you've built a patreon that can fully support your videos.
Super cool video.
Let's get started 🤣🤣
I don't trust you, You Rig Everything!
Use these nozzles for your burn tests
Hello Mr Scratches at a level 6, with deeper groves at level 7.
Destin, you should see the injector pattern of a newer Cummins engine operating at 2200 bar or more. The *longest* injection event is just over 3 milliseconds.
It would be awesome to see you do a video with Corridor Digital where you make slow motion flame assets for them to use in their videos. They really appreciate the intricacies of flames and your slowmo footage in this video would really interest them.
Love these types of video, excellent work. Dean, thanks for helping perfectly good tractors continuing to work.
Thank you very much for the video's that you put out alot of this stuff people will never get a chance to see you let us into that special few that end up seeing stuff like this it just baffles the mind it's freaking awesome thank you for such awesome footage.
Hey Dustin.. I’m going back to college to learn electrical engineering bc of the inspiration I get from this channel. You’re a goat. And I would love to be able to email
You when I have questions.
When you have fire and nervous giggling, you know you’re at the cutting edge of science.
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Great video. What type of fuel were you using? Was it gasoline? Was it diesel? Something else? Did you try multiple fuels to see which worked best?
Freaking cool. Also it's crazy how the t2 judgment day nuclear blast scene is the most accurate when scaling down a deadly event. The slow mo of flames reminded me of that movie.
I just disassembled my entire diesel boat engine bolt by bolt over the last month, and learned a ton just by looking stuff up as I did it. Last year before learning the engine was shot, I got to meet our local fuel injector repairman downtown and he walked me through his refurb process. What a crazy coincidence to see this video recommended to me. Doing stuff for the joy and curiosity of it is just the best, isn’t it? 😊
Great as always. And Sauron’s eye shows that inner mind child we all have continues to be fun when we get older (or more experienced).
This is such an easy way to explain LEL and HEL. It's something that I have a hard time explaining to new technicians within my industry. Although we don't use fuel injectors, it does correlate directly to it.
That slow motion video of the flame moving towards the camera was insane. Really mesmerizing
POV - joint at a hippy festival
I personally wonder about the pressures inside the combustion chamber at the point of combustion and how they relate to horsepower and torque.
New to your channel and love all that I have watched. But in this one I kept wondering, The fire balls are huge but exactly how much fuel is actually released with each shot?
Amazing. The elder scrolls 6 should have these as their fire effects. Also, i worked around hydraulics for years without understanding there was a multiplication of force happening in hydraulics much like your snatch block video. If you haven’t done a “Hydraulics are awesome” video you should.
I would LOVE to see a video on exactly how these injectors are made. Modern common rail injectors are astonishing feats of engineering.
Looks like you re-invented a flamethrower there 😄
Hey Destin, I have a question. Considering how much simpler fuel injectors are in comparison to carburators, why is that the latter was the first standard for machines? Is there something tech special about fuel injectors that justifies that?
9:52 Destin's slow motion reaction is so far the best thing I've seen this year.
Its only January
Safety squints.
"It was at that moment he knew...
He done F'd up"
or "If I go home with no eyebrows, my wife is gonna kill me"
Put the captions on. It says, ".....". lol
Yes, it looks like his mind rapidly went "oops, glad I used safety goggles but if that thing would have caused any bigger fireball, I'd be missing some of my hair nonetheless".
I wish we had more people like this teaching our kids in the school system 🤗 Never Stop Learning💯
Hey Destin, I would love to see a deep dive into the space shuttle like you did with the Saturn V. The shuttle has always fascinated me, especially landing such a large craft from from space on a (relatively) small runway
Thank you for this video! And thank you for supporting the right to repair! Just one note/correction: in fuel injection engines, the air/fuel mixture happens also upstream to the engine, in the intake manifold (like the carburettor ones), so the mixture enters the cylinders already homogeneous and even. The type of engines where you've got to have perfectly even nozzle spray inside the combustion chambers "downstream" from the intake manifold, are direct injection engines (where it applies what you said about having rich mixture on one side of the cylinders and a lean mixture on the other). Bye!
I fully, 100%, love the fact that you love learning as you do. I've always stood over shoulders trying to soak up as much as I can. I'm also grateful for the internet for this reason. Keep teaching, I'll keep learning....thank you!
Awesome to see the flame catch-up to the misty cloud of fuel. I’m sure you could give the speed of the fuel coming out of the injector, and the speed that the flame reaches to engulf the whole cloud. Looks cool.. cheers for sharing
The last few slomo shot were incredible, I mean i was so mesmerised to see stuff that you cannot normally witness. Thank you Destin for the fantastic content that you share here, and this is what we need.
@SmarterEveryDay I would love to know what those 2 books you referenced were, being in the automotive field I’m always looking to Learn new things. Any help would be greatly appreciated!
Thanks for saying kind things!
Your one step away from suppling the film for the next 007 intro! Those shots during the 15 minute mark were absolutely beautiful!
hearing Destin laughing and giggling is super fun! watching the video is also fun! Thanks for the video
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Loved this video! Excellent work. When you talked about the burn boundary of the jet I started thinking about ignition alternatives to the torch. For example, as you are applying pressure to the pump lever, there is likely a lever position where optimal fuel has been expelled. At that position, a contact could engage and a spark plug in front of the nozzle could ignite the jet. Then to experiment with burn boundary, the spark plug could be moved closer or further from the nozzle to determine where the optimal fuel-air boundary is,
Like you often do with your videos, you get the creative juices going. Thanks.
Hi Destin! You probably won't see this comment, but I just wanted to express my apprecitation for the videos you create! Just watched your videos on how Saturn V and JWST work and I can't express enough how interesting your videos are! Thanks for making us SmarterEveryDay!
At precisely 9:43 I yelled out loud "HA HA! Nice." I always love learning how stuff works and today I have gotten smarter. Thanks!
Those were some of the clearest, crisp, sharpest slow motion images of fire I've ever seen. Absolutely beautiful and mesmerizing. I absolutely love this channel. Thank you Destin.
Not saying these shots aren’t fantastic, but I’d highly suggest you check out The Slo Mo Guys if you like that kind of high quality slo mo!
As a robot i find this video extreme attractive
you just made a certain pair of guys sad, slowly sad :)
It probably helps when the thing you're filming produces it's own light XD
Half the difficulty to slow mo shooting is that each frame of video has so little time to collect light that things either need to be really well lit, or end up looking darker, or the shutter speed is adjusted for more light but blurrier images.
Those are in fact the coolest, old books around. Got a set just like them on my shelf at home. Nothing says night time reading like rockets and diesel combustion before bed. :)
Awesome video Destin as always I really liked the part where you laugh like a mad scientist at 9:45 time 😂
Amazing! What a beatiful video! I was wondering if it's possible to ignite a little part of the fuel using only the Oxigen inside the molecule?
I love to see that your boys at Cross Creek tractors are using a Hyster forklift ! I work on Hyster forklift every day! And that was a awesome demonstration of fuel injectors those slow motion shots would make an amazing screen saver it is beautiful .
Another nice video that is both informative and entertaining. Nice job, Destin.
After, I dunno maybe 10 years, Destin still have me curious and fascinated with nature, science and engineering with the happiness of a child. My first and only "ring the bell" on youtube for a decade, and never regreted!
I learned so much from this video in a way I cannot explain but thank you. Like honestly so weirdly interesting
This was really cool.
Maybe a follow up video comparing gasoline and diesel injectors?
Or a look at the differences in piston design along with fuel type?