This is not high speed camera but strobe photo camera: take a picture at 0degrees, make a full cycle and at the same stroke make another picture at 0.1degrees (actually it's 720.1 degrees) and so on.
In practice you continuously shoot and "timestamp" each photo with crank angle. After hundreds of thousands of photos you put them in order of the crank angle, so each photo is most likely from different cycle, and most likely you caught within a degree every position of the crank.
I remember Ford making a test bed engine that used a very strong sapphire quartz window so the camera could see into the cylinder. Watching this process really hammers home why petrol units are only 20 to 23 percent efficient.
Next generation of road car engines will use direct solenoid operated valves. This is also why the old 12 volt system days are mumbered. Solenoid valves will need 48 volts bus distribution which also benefits the increase in electrical loads in a modern car.
Hahaha! How did you get a camera in there? You don't get the camera in there. You either use a pinhole camera or a special thick glass inspection window.
The most interesting video on YouTube. Unless you make duct tape wallets. I watch a few duct tape wallet tutorials when I have trouble getting to sleep.
Quontom, it's a 4-valve, look closely & you'll see a second exhaust valve behind the one in front. Same with the intake, just a little harder to see due to carbon. Companies like Lenox/Pultz make pinhole-lens cameras capable of withstanding 4000+ degrees. Artificial light obviously introduced here as well. In these types of apps, camera actually resides outside the furnace (or cylinder). Only a small tube passes through the furnace or cylinder head. Great video.
What's the point of showing a 4 stroke motor cycle and skipping one stroke , for anyone seeking to learn this video is a waste of time, misleading !!!
@Quontomleeeep No it's not. This video is an eye-opener for amateur tuners like me who need to see what's happening to the combustion process to understand about timing. It's great. I wish it would tell us the exact degrees of timing so we can see when the actual spark occurs.
@AccordGTR Again No, the video is titled "How a four stroke engine works' . You already know this, and sure the video may help you with tuning etc but for someone who knows zip about the four stroke cycle this video is missing the full picture and in that is disappointing . Timing looks 5 degrees advanced to me ?
@spannermonkey11 Yer,I guess it would. Rolleyes twice, also shake head, do a little dance, prey to Ala , face mecca, put out the washing, bay at the Moon, drive to the Mall, have a sandwich, pack bags for a holiday, move states, get a haircut, bang a drum .
@sizmike yeah notice it is in spurts since the fuel injector is like a solenoid opening and closing in pulses. pretty neat. and the combustion is really gradual like burning a piece of paper, not at all like I thought like an firecracker. I guess if it was, that would be detonation
Does the camera have a tiny light on it? it should be dark in there until ignition. The reason they don't show the exhaust stroke is probably because the camera got sucked out....LOL, they are probably repeating the same video.
@londontrialscat The ignition is advanced slightly in all engines, thats so the fuel gets time to ignite before it pushes the piston. Most engines especially ones that operate at a wide rev range ie: cars and motorbikes have an auto variable advance depending on RPM done by either mechanical centrifugal, or electronic control, so higher the revs, the more advance needed to keep the torque up. Single RPM engines such as those in mowers do not have the auto advance feature as they dont need it.
My school has a glass engine, it is pretty cool, the whole cylinder is glass, and you can see the piston movement along with valve movement and all strokes. it really is cool to see it firing inside cylinder, doesn't look like i expected. only runs on alcohol because gasoline would fog cylinder, making impossible to see.
@palimadra I can say for sure that the camera is in the cylinder head but how they made it work I dont know!! The average temp. in a 4-stroke motor is about 1400 degrees F!! Its pretty insane however they did it!!!
Cool video, but its missing the 4th exhaust stroke! Its hard to imagine how much energy is produced in an engine vs whats lost in the drivetrain. Modern combustion engines are still inefficient to use as less than 20% of the power produced actually goes to the wheels.
@MacGregor8000 A 4 stroke engine actually has 8 phases,so forget what you've learned in school about the 4 strokes. Exhaust:2 phases exhaust blowdown and exhaust return.... Intake:3phases intake overlap,intake suction and intake charging... Compression phase...2burning phases:Pre power burn and power production phase=8 phases rather than 4 strokes.
@drummerjamesamit No,this applies to all '4 stroke' engine's. Not to spam or anything,but check out the website link on my channel.(mototune usa) Click it and you too will understand.
This seems like it should be an ancient technology. Its such a cool idea though. I'm sure there are more efficient ways to do work these days then with controlled explosions.
@kingvance ok so you have achieved what? you get to see the piston every time it hits top dead center? woohoo. wouldnt you want to see some detail of what happens instead of just a blur?
There was a video of a BMW motorcycle valvetrain up for a few days. Then everyone noticed that it was scary as hell (the cams were just a blur even at idle) and I guess they decided they didn't want people seeing that sort of thing. Might make potential customers shake their head and buy an old TZ750 two-stroke or something.
Actually, this video IS going at actual speed. It's just the camera is capturing a frame at nearly the same point in the cycle. It's like looking at a wheel spinning at just the right speed that it looks like it's not moving or even going backwards.
Interesting, that means one cycle in the video is actually many cycles in reality. That explains the weird effect the fire and fuel appear to have in the video, they look like clouds in a time-lapse video.
Oh yeah, I didn't take that into consideration, you would need a high-speed camera to capture it at full-speed and have it look right, and then you might be risking an expensive piece of equipment putting one into an engine cylinder :p
thats a very good comment and taterfamine your right. how they got the camera in there im not sure maybe took a sensor out? not sure but that is kind of a dumb thing to end it before it goes into the exhaust
actually the fuel does`nt explode it burns very quickly, if it does explode or detonate in cylander uncontrollably then, you`ll be doing damage to the engine, there are circumstances where it does explode due to poor fuel, bad engine tune, carbon deposits staying hot causing pre ignition,etc,etc.
@ProjectFlipside actually not, its more important to learn about the timing of the spark and see how the flame propagates during the combustion phase cuz this is what produces torque. Exhaust phase or scavenging phase is not that important here. The video teaches you about timing advance and valve timing. This is what we need to know to be good engine tuners. I think this is low rpm. At high rpm, timing advance increases. In pre-ignition or detonation, timing is too much, etc.
petrol and air are mixed in the carburettor which is then sucked into the cylinder during the intake stroke. on the compression stroke (when the mixture is compressed) the spark plug sparks, the mixture explodes, forcing the piston down. then when it comes back up, exhaust gases are let out of the exhaust port!! enough?
alright...the fuel/air mixture is coming in through the open valve on the right, while the piston moves down. then both valves close and the piston moves up, compressing the fuel/air mixture. when you compress a gas quickly, like in an engine, the gas becomes very hot. the spark plug then ignites just before the piston reaches top dead center, which is the little spark that you see. Then the spark ignites the fuel/air mixture and BOOM! that's why the explosion happens.
and plus if you wanted to make it look like a four stroke, don't make it seem like it's firing every time the piston compresses. only 2 strokes do that. =P
@airnut100 Unfortunately the yellow flame is real, that is where most of the inefficiency of the ICE occurs. Had they run another stroke with the light off it would have been easier to see.
The difference is premix and postmix combustion, the exhaust stroke would be a blue flame with all that wasted energy going out of the exhaust ports. Look for the video "M103 goes like hell! without exhaust manifold" to see the wasted energy.
@crazytacostudios Actually both intake and exhaust valves are designed to rotate slightly during every actuation. This helps keeps carbon from building up on the valve sealing surface, as well as promote a good seal beween the valve and vlave seat.
@tpvalley "RPM" Revalutions-Per-Minute. If the motor is running 6000 rpm, then how can it be running 3000 rpm at the same time? Thats what it says at the very begining of your comment. you said "actually 3000 times at 6000rpm". Sory but that doesnt make sence, unless im miss understanding what your trying to say.... It cant spin 3000 and 6000 at the same time...
@SG55OVCam for V-8 maybe but a Honda street engine will turn 9000rpm or more. F1 and Honda motorcycle engines go up to 3x that of V-8's and use hydraulic valves instead of gear driven ones. Now that's is something.
I realize that, but how though... and is it in the engine or looking through a window port?? I cant see it being mounted like inside the cylinder, not with the pressures and temperature involved...
Drill a hole through the side of the cylinder head, use a pyrex plug, mount camera behind plug. It only has to last for a couple of revolutions. It's not that complex.
In-fucking-credible. When you look at this video, the very heart of an engine looks so primitive lol. This is still amazing though. But why were the exhaust strokes cut out and what is this "overlap" everyone keeps talking about? Lol i don't know a whole lot about engines. I wonder what this would look like with a big performance cam.
Overlap helps with breathing. What happens is that at the top of the exhaust stroke, both valves are open concurrently. The exhaust flowing out of the exhaust port creates a vacuum in the cylinder which pulls fresh air/fuel in. The exhaust valve then closes as the piston starts to move down, the intake valve opens further, and the moving piston maintains and increases that vacuum pulling in the A/F mix.
That is one of the coolest things I've vever seen. That must be very high speed photography. I don't know how they kept such a bright light on inside the chamber 100% of the time. The orange flame front on the intake valve was weird.
Why is there no overlap when both valves are open at the same time ? All engines have at least 100 degrees of overlap. That is the most critical (and interesting) moment in an engine's valve timing. (Next to timing when to close the intake valve.) That would be the cat's meow for me.
100 year old technology still imprisoning the masses.
larryseyer 2 weeks ago 2
This is not high speed camera but strobe photo camera: take a picture at 0degrees, make a full cycle and at the same stroke make another picture at 0.1degrees (actually it's 720.1 degrees) and so on.
In practice you continuously shoot and "timestamp" each photo with crank angle. After hundreds of thousands of photos you put them in order of the crank angle, so each photo is most likely from different cycle, and most likely you caught within a degree every position of the crank.
AsiAzzy 1 month ago in playlist Mechanic
Just the same stroke repeated over and over again.
Kdog54902 2 months ago
@tk42138 That's really interesting. Anywhere I can find more information on this?
paintballgundown8 2 months ago
Great video carnt quite make out what it all means didnt understand any of it but I relaxed with a brandy and enjoyed it
seb1sim 2 months ago
Thumbs up if you noticed the inlet valve spinning
rwdford 2 months ago
that was like 3 or 4 rpm!!
Detc0re 3 months ago
I remember Ford making a test bed engine that used a very strong sapphire quartz window so the camera could see into the cylinder. Watching this process really hammers home why petrol units are only 20 to 23 percent efficient.
Next generation of road car engines will use direct solenoid operated valves. This is also why the old 12 volt system days are mumbered. Solenoid valves will need 48 volts bus distribution which also benefits the increase in electrical loads in a modern car.
TK42138 4 months ago
@TK42138 what if those solenoids fail.... I'm sorry but I'm stay the living f*** away from those cuz I prefer the old days.
WarWolfAngel001 3 months ago
@WarWolfAngel001
I believe the valves shut in event of solenoid power failure so no danger of valves meeting pistons.
TK42138 3 months ago
@TK42138 oh I see. basically a return spring right? :)
WarWolfAngel001 3 months ago
its crazy how this happens about 8,000 times per minute
Gidenkidenk 5 months ago
All you guys must be thick if you think this fake. its called drilling a small enough hole to fit a pinhole camera in
littleowen212 6 months ago
Hahaha! How did you get a camera in there? You don't get the camera in there. You either use a pinhole camera or a special thick glass inspection window.
duckvdub 6 months ago
nice footage
engineer1gt 7 months ago
Awesome! I have to learn how motors work, and this was great to see! But I've got to wonder, how the hell did you get a camera in there?!?
MetalHeadMnS 8 months ago
After close inspection, this is a 4 valve cylinder, you can see the second intake valve behind the big one in view =p
liamcollister 8 months ago
The most interesting video on YouTube. Unless you make duct tape wallets. I watch a few duct tape wallet tutorials when I have trouble getting to sleep.
ExtremePeppers 8 months ago
@ExtremePeppers lol
adcuz 3 months ago
now how the hell did you get a camera in there?
oSHOLLIVERo 8 months ago
wow.
jaqjaques 8 months ago
excellent video! really good!
shredtheibanez 8 months ago
FUCK THE DOUCHEBAGS who are pissing and moaning.... who knows what got their PANTIES IN A BUNCH!!!
Great vid, and THANKS!!!!!!!
TipikulBob 8 months ago
pretty fuckin cool
JustinCase10261 8 months ago
wow
best video ever!
nws15 8 months ago
great video!
petros172 9 months ago
Pretty amazing to see this footage, thanks.
davidhertzberg 9 months ago
Quontom, it's a 4-valve, look closely & you'll see a second exhaust valve behind the one in front. Same with the intake, just a little harder to see due to carbon. Companies like Lenox/Pultz make pinhole-lens cameras capable of withstanding 4000+ degrees. Artificial light obviously introduced here as well. In these types of apps, camera actually resides outside the furnace (or cylinder). Only a small tube passes through the furnace or cylinder head. Great video.
zacbreaker 9 months ago 2
I tried to jerk off watching that, but the exhaust stroke isn't complete :(
TransAmDrifter 10 months ago
the camera probally went bye-bye on the exhaust stroke and shot out of the tailpipe!
brad1179 1 year ago
hey that's a hemi
aftoyboy 1 year ago
wow man ! how you put a camara in there?
Xx1kro5xX 1 year ago
What's the point of showing a 4 stroke motor cycle and skipping one stroke , for anyone seeking to learn this video is a waste of time, misleading !!!
Quontomleeeep 1 year ago
@Quontomleeeep No it's not. This video is an eye-opener for amateur tuners like me who need to see what's happening to the combustion process to understand about timing. It's great. I wish it would tell us the exact degrees of timing so we can see when the actual spark occurs.
AccordGTR 1 year ago
@AccordGTR Again No, the video is titled "How a four stroke engine works' . You already know this, and sure the video may help you with tuning etc but for someone who knows zip about the four stroke cycle this video is missing the full picture and in that is disappointing . Timing looks 5 degrees advanced to me ?
Quontomleeeep 1 year ago
@Quontomleeeep yup and its only a 2-valve so probably an old engine like a chevy v8. harhar. more sophisticated dohc engines can take more advance
AccordGTR 1 year ago
@Quontomleeeep Actually it looks 4.5 degrees advanced to me. :rolleyes: and :shake head:
spannermonkey11 11 months ago
@spannermonkey11 Yer,I guess it would. Rolleyes twice, also shake head, do a little dance, prey to Ala , face mecca, put out the washing, bay at the Moon, drive to the Mall, have a sandwich, pack bags for a holiday, move states, get a haircut, bang a drum .
Quontomleeeep 11 months ago
охуенно!)) просто порно какоето))))
011011100101 1 year ago
I think the reason why he doesn't show the exhaust stroke is because it's difficult to actually see the smoke leaving the combustion chamber
iwashere990 1 year ago
That is fuel coming through the intake valve isn't ?
sizmike 1 year ago
@sizmike yeah notice it is in spurts since the fuel injector is like a solenoid opening and closing in pulses. pretty neat. and the combustion is really gradual like burning a piece of paper, not at all like I thought like an firecracker. I guess if it was, that would be detonation
AccordGTR 1 year ago
perfect vedio
madhiiolii 1 year ago
Nice to see what's going on inside the engine
geizzie 1 year ago
sub and fav. thanks. :)
luckymisselala 1 year ago
Does the camera have a tiny light on it? it should be dark in there until ignition. The reason they don't show the exhaust stroke is probably because the camera got sucked out....LOL, they are probably repeating the same video.
NathansBackwoods 1 year ago
I came.
mattysharples 1 year ago
damn i didnt know it was so firey in there
ronmann606 1 year ago
it would be nice to see an exhaust stroke
benismyusername 1 year ago 24
why ppl are calling this porn?
christosGTAIV 1 year ago
@christosGTAIV be cause they have a engine fetish
mjndblain 1 year ago
@christosGTAIV Because its that awesome!
liOVERLOADil 1 year ago
@christosGTAIV B/c are stroking their drive shaft to this and getting their own engines going. Hence porn.
SSJLIGHT 1 year ago
I have achieved orgasm
1MartinD28 1 year ago
Wheres is the exhaust stroke?????
Btw, really cool video!
Frederik19951995 1 year ago
That exhaust valve skipping is so annoying. It probably tricks a bunch of people too.
mytemp1 1 year ago
I thougt porn isn't allowed on youtube
MrRabbitBlack 1 year ago 29
@MrRabbitBlack only human porn is forbidden, animal and engineering porn is okay
RedgardH 1 month ago
Muito bacana, dá p/ver os quatro tempos certinhos, admissão, compressão, explosão e escape, muito legal... .
ADHEMAR1308 1 year ago
COOL!!!
herbienbrian 1 year ago
It looks like its igniting too early.
Shouldn't it ignite at the beginning when the piston is on its way down?
londontrialscat 1 year ago
@londontrialscat no, it looks about right. it takes a while between the spark and the full ignition of the fuel/ air mix.
MrDutchHans 1 year ago
@londontrialscat The ignition is advanced slightly in all engines, thats so the fuel gets time to ignite before it pushes the piston. Most engines especially ones that operate at a wide rev range ie: cars and motorbikes have an auto variable advance depending on RPM done by either mechanical centrifugal, or electronic control, so higher the revs, the more advance needed to keep the torque up. Single RPM engines such as those in mowers do not have the auto advance feature as they dont need it.
Cringle84 1 year ago
wouldn't it get really hot in there for the camera man
ocrag 1 year ago
hey mr. kutys class
ecsoccer28 1 year ago
@ecsoccer28 w00t
sebasky22 1 year ago
So is that a non interfearence engine? Can't tell if the valves open into yhe chamber.
Zoomer30 1 year ago
This is AWESOME!!!
craigg1981 1 year ago
My school has a glass engine, it is pretty cool, the whole cylinder is glass, and you can see the piston movement along with valve movement and all strokes. it really is cool to see it firing inside cylinder, doesn't look like i expected. only runs on alcohol because gasoline would fog cylinder, making impossible to see.
313foxbody420 1 year ago
Why dont they show the overlap phase?
Southslider 1 year ago
thats cool!
f22raptor861 1 year ago
did you notice what a intake restriction is the valve?
c12letmefly 1 year ago
Many of us have no idea how much this video is helping people understand automobiles. Specially people like me.
I would like to know how this video was shot - I mean the location of the camera and the type of equipment used
palimadra 1 year ago
@palimadra I can say for sure that the camera is in the cylinder head but how they made it work I dont know!! The average temp. in a 4-stroke motor is about 1400 degrees F!! Its pretty insane however they did it!!!
craigg1981 1 year ago
Cool video, but its missing the 4th exhaust stroke! Its hard to imagine how much energy is produced in an engine vs whats lost in the drivetrain. Modern combustion engines are still inefficient to use as less than 20% of the power produced actually goes to the wheels.
B4its2L8guy 1 year ago
Suck, Squeeze, Bang , and Blow that makes Four strokes.
MacGregor8000 1 year ago
@MacGregor8000 A 4 stroke engine actually has 8 phases,so forget what you've learned in school about the 4 strokes. Exhaust:2 phases exhaust blowdown and exhaust return.... Intake:3phases intake overlap,intake suction and intake charging... Compression phase...2burning phases:Pre power burn and power production phase=8 phases rather than 4 strokes.
:-)
Southslider 1 year ago 2
@Southslider WOW, who told you that??
craigg1981 1 year ago
@Southslider
wow I didn't know that
Now I'm confused all over again.
Behemoth2334 1 year ago
@Southslider i think it depends on the type of cylinder you are using? isn't it..
drummerjamesamit 1 year ago
@drummerjamesamit No,this applies to all '4 stroke' engine's. Not to spam or anything,but check out the website link on my channel.(mototune usa) Click it and you too will understand.
;-)
Southslider 1 year ago
That is incredible.
deans4x4 1 year ago
interesting to think of combustion engine is actually running on sun combustion power.
sun (fire) --> plants --> fossil fuels --> back to fire
sandstormranger 1 year ago
That is wild. Never seen a actual engine working from the inside befor that is running.
bigdnelyria 1 year ago
its kinda scary knowing that theres explosions at like 10 000 degrese hapning in front of you haha
Yel0Sub 1 year ago
This seems like it should be an ancient technology. Its such a cool idea though. I'm sure there are more efficient ways to do work these days then with controlled explosions.
komodo003 1 year ago
Why does the footage skip after the the exhaust valve opens?
ManuelHung 1 year ago 63
@ManuelHung I guess the the exhaust stroke isn't exciting enough.
thatcreepcanroll 1 year ago 2
Considering it saves the vewer roughly two seconds, seems rather pointless even if it is boring... for two seconds.
ManuelHung 1 year ago
@ManuelHung probably run out of tape, what else reason would cause such retarded thing....
ollecarlsson 1 year ago
@ManuelHung barelly visible
boilingpoint2 1 year ago
@ManuelHung I would think the camera was exhausted out with the burnt gas, along with the guy filming it!
answerstolucky 1 year ago
Probably a twin spark engine and some kind of screw in camera
indigestive 1 year ago
It'd be nice if the loop didn't cut out valve overlap. Seeing the exhaust scavenging happen would be great.
LJRockstar06 1 year ago 8
@LJRockstar06 its fake to me, cause you couldnt fit a camera in a cylinder
PivotSk8erTommy 7 months ago
@PivotSk8erTommy You are such a stupid troll...
XxENovaxX 2 months ago
It would be nice to see a video for once that shows a bit of footage of the engine going at actual speed ..
KooKas2oo8 1 year ago 3
@KooKas2oo8 you wouldnt be able to see anything! at an idle speed of 900 rpm the crank is spinning 15 revolutions per second.
1000yardshot 1 year ago
@1000yardshot And how many fps do these youtube videos run at? 18?
kingvance 1 year ago
@kingvance ok so you have achieved what? you get to see the piston every time it hits top dead center? woohoo. wouldnt you want to see some detail of what happens instead of just a blur?
1000yardshot 1 year ago
There was a video of a BMW motorcycle valvetrain up for a few days. Then everyone noticed that it was scary as hell (the cams were just a blur even at idle) and I guess they decided they didn't want people seeing that sort of thing. Might make potential customers shake their head and buy an old TZ750 two-stroke or something.
JETZcorp 1 year ago 2
yeah, but it would probably just be to fast to even see anything working, lol!
DehnMan 1 year ago
Actually, this video IS going at actual speed. It's just the camera is capturing a frame at nearly the same point in the cycle. It's like looking at a wheel spinning at just the right speed that it looks like it's not moving or even going backwards.
Zhatt 1 year ago 3
Interesting, that means one cycle in the video is actually many cycles in reality. That explains the weird effect the fire and fuel appear to have in the video, they look like clouds in a time-lapse video.
rlh68 1 year ago
Oh yeah, I didn't take that into consideration, you would need a high-speed camera to capture it at full-speed and have it look right, and then you might be risking an expensive piece of equipment putting one into an engine cylinder :p
KooKas2oo8 1 year ago
@Zhatt so its kinda stroboscopic?
juliman14 1 year ago
@juliman14 Yeah. The camera's frame speed is about the some timing as one stroke (or a multiple of that).
Zhatt 1 year ago
bull shit it is going normal speed
thebjgj2 1 year ago
excellent j'ai toujours rêvé de voir ca
je pense que ca doit etre fait avec une fibre optique
kerflair 1 year ago
thats a very good comment and taterfamine your right. how they got the camera in there im not sure maybe took a sensor out? not sure but that is kind of a dumb thing to end it before it goes into the exhaust
savemefromthis45 1 year ago
actually the fuel does`nt explode it burns very quickly, if it does explode or detonate in cylander uncontrollably then, you`ll be doing damage to the engine, there are circumstances where it does explode due to poor fuel, bad engine tune, carbon deposits staying hot causing pre ignition,etc,etc.
mikxr 1 year ago
how the fuck they put a camara inside that!?
Neton16 1 year ago
thats class
doddzy2009 1 year ago
Whoa!!! how in the world did you do that?
nikhilsayzhi 1 year ago
it's kinda dumb how the video loops before you even see the exhaust leave the cylinder
ProjectFlipside 1 year ago 25
@ProjectFlipside yeah a 3-stroke engine with time lapse tuning
ollecarlsson 1 year ago
@ollecarlsson What? There's no such thing as a "3-stroke"
snowman4839 1 year ago
@snowman4839 im not kidding, right
ollecarlsson 1 year ago
@ProjectFlipside actually not, its more important to learn about the timing of the spark and see how the flame propagates during the combustion phase cuz this is what produces torque. Exhaust phase or scavenging phase is not that important here. The video teaches you about timing advance and valve timing. This is what we need to know to be good engine tuners. I think this is low rpm. At high rpm, timing advance increases. In pre-ignition or detonation, timing is too much, etc.
AccordGTR 1 year ago
is this real if so how did you do it
cat123456789101 1 year ago
the left one is the intake,right?
Lakshico 2 years ago
no, the one on the right is the intake. watch the cycle
wilber000 2 years ago
can someone explain to me what happens when you see gasoline coming in and then fire plz its for a science project thanx ;)
amescuita 2 years ago
@amescuita if you dont see the sparkplug sparking,,,,,please change your school project soon...
nickyjam770 2 years ago
petrol and air are mixed in the carburettor which is then sucked into the cylinder during the intake stroke. on the compression stroke (when the mixture is compressed) the spark plug sparks, the mixture explodes, forcing the piston down. then when it comes back up, exhaust gases are let out of the exhaust port!! enough?
wilber000 1 year ago
yeah sure...
alright...the fuel/air mixture is coming in through the open valve on the right, while the piston moves down. then both valves close and the piston moves up, compressing the fuel/air mixture. when you compress a gas quickly, like in an engine, the gas becomes very hot. the spark plug then ignites just before the piston reaches top dead center, which is the little spark that you see. Then the spark ignites the fuel/air mixture and BOOM! that's why the explosion happens.
geddit?
taterfamine 1 year ago
this is just the same firing over and over again.
and plus if you wanted to make it look like a four stroke, don't make it seem like it's firing every time the piston compresses. only 2 strokes do that. =P
guyy767 2 years ago
Wow this video is insane!!! Always wanted to see what its like inside in action. Awesome 5.0
Ogi4a 2 years ago
would love to know how much this video has been slowed down to actually see this happenning. nice shot though
Seanyboyh 2 years ago
Surprised at fuel mixture burning with a yellow flame at temperature and pressure. can't be real.
airnut100 2 years ago
@airnut100 Unfortunately the yellow flame is real, that is where most of the inefficiency of the ICE occurs. Had they run another stroke with the light off it would have been easier to see.
The difference is premix and postmix combustion, the exhaust stroke would be a blue flame with all that wasted energy going out of the exhaust ports. Look for the video "M103 goes like hell! without exhaust manifold" to see the wasted energy.
BriscoCountyJr23 1 year ago
Ah yes.. Suck squeeze bang blow.
KamikazeElvis 2 years ago 2
ALOOOOOOt
armwrestling23 2 years ago
cool video no exhaust strokes? flames shooting out of the intake valve? spinning intake valve? thats a weird engine
crazytacostudios 2 years ago
@crazytacostudios Actually both intake and exhaust valves are designed to rotate slightly during every actuation. This helps keeps carbon from building up on the valve sealing surface, as well as promote a good seal beween the valve and vlave seat.
caniwitech 2 years ago
great capture...
carynatina 2 years ago
This comment has received too many negative votes show
It's animation you morons
Grousuba 2 years ago
No it's not.
GitarStu 2 years ago
This is amazing!
esfanneon 2 years ago
how the hell did they get this footage...
stoichiometric 2 years ago
They built a giant engine so a guy could go in there and film it.
crustinc 2 years ago 79
@crustinc seriously?
APontiacof455cubes 1 year ago
@crustinc
nope, they train insects to use small cameras.
tpvalley 1 year ago
That is amazing!! Just to think that this happens up to 6000 times a minute when thrashing it!
SG55OVCam 1 year ago
@SG55OVCam
actually 3000 times a minute at 6000rpm, its a 4 stroke remember!
some run at 18-20,000rpm, imagine that!
6000rpm is 100 revs a second so 18,000 is 300 revs a second!
tpvalley 1 year ago
@tpvalley "RPM" Revalutions-Per-Minute. If the motor is running 6000 rpm, then how can it be running 3000 rpm at the same time? Thats what it says at the very begining of your comment. you said "actually 3000 times at 6000rpm". Sory but that doesnt make sence, unless im miss understanding what your trying to say.... It cant spin 3000 and 6000 at the same time...
peacemaker50cal 1 year ago
@peacemaker50cal
4 stroke, so 3000 cycles per minute, or ignitions however u like.
tpvalley 1 year ago
@tpvalley Unless you meant SECONDS...
peacemaker50cal 1 year ago
@SG55OVCam for V-8 maybe but a Honda street engine will turn 9000rpm or more. F1 and Honda motorcycle engines go up to 3x that of V-8's and use hydraulic valves instead of gear driven ones. Now that's is something.
AccordGTR 1 year ago
mounted a camera in the head of an engine.
KartRacer695 2 years ago 3
I realize that, but how though... and is it in the engine or looking through a window port?? I cant see it being mounted like inside the cylinder, not with the pressures and temperature involved...
stoichiometric 2 years ago
Drill a hole through the side of the cylinder head, use a pyrex plug, mount camera behind plug. It only has to last for a couple of revolutions. It's not that complex.
GitarStu 2 years ago
2 stroke
bmwxfunf 2 years ago
hihihi hahaha 2 strokes :-)))) with vlaves :-))) go back to school
43932 2 years ago 9
i din see the overlapping period...
it seems like it cut...
anyway,it's a very great vid..
thanks a lot.
microsoftrayvis 2 years ago
havent noticed before but..... the intake valve is spinning like hell!!
it doents happen in one stroke...
it happens in hundreds of frames that compose the full motion video that we see at slow speed.
amazing video work.
authmaax 2 years ago
In-fucking-credible. When you look at this video, the very heart of an engine looks so primitive lol. This is still amazing though. But why were the exhaust strokes cut out and what is this "overlap" everyone keeps talking about? Lol i don't know a whole lot about engines. I wonder what this would look like with a big performance cam.
Artyfil 2 years ago
Overlap helps with breathing. What happens is that at the top of the exhaust stroke, both valves are open concurrently. The exhaust flowing out of the exhaust port creates a vacuum in the cylinder which pulls fresh air/fuel in. The exhaust valve then closes as the piston starts to move down, the intake valve opens further, and the moving piston maintains and increases that vacuum pulling in the A/F mix.
TestECull 2 years ago 2
Exactly! One more thing should be mentioned though, the incoming air also helps expell the exhaust gas. Perfect ansewer though.
caniwitech 2 years ago
seriously why are the exhaust strokes deleted though
BFMVpwnage5168 2 years ago 6
That is one of the coolest things I've vever seen. That must be very high speed photography. I don't know how they kept such a bright light on inside the chamber 100% of the time. The orange flame front on the intake valve was weird.
BlakeMason2 2 years ago
that is what it is like every time i walk into a room.
SethBishop89 2 years ago
everybody stands with their flamethrowers ready to make a massive BBQ out of you? lol
badassdesigns 2 years ago
LOL
jigmesam 2 years ago
heh??
MKUltraProject 2 years ago
amazing
BFMVpwnage5168 2 years ago
probably would confuse people. Overlap is a VERY interesting thing. I don't know about 100 degree of overlap but whatever.
FunktasticLucky 2 years ago
Why are the overlaps cut out? Is there a secret? :)
slyy4096 2 years ago
It's a way cool vid, but is it real ?
Why is every exhaust stroke deleted ?
Why is there no overlap when both valves are open at the same time ? All engines have at least 100 degrees of overlap. That is the most critical (and interesting) moment in an engine's valve timing. (Next to timing when to close the intake valve.) That would be the cat's meow for me.
flyboy3633 2 years ago
This has been flagged as spam show
Very Sweet video! Check mine out, too. Peace.
haider87 2 years ago
thats cool
curtismundy 2 years ago
how do they do that?
19ultima88 2 years ago
wooooooooooooooooooooooooow
beeqool 2 years ago
that is just orgasmic
SNOWMANN1 2 years ago 7
what kind of camera can take that kind of heat may i ask?
3yearappentice 2 years ago
Thank u 4 posting ... useful
RealAlfMan 2 years ago
cool
lickmycags 2 years ago
technology is amazing
captainmisterio 2 years ago
love this :X:X:X:>
un2si3 2 years ago
ok, that's pretty damn cool. I've never actually seen the 4 stroke cycle from this perspective. Awesome shots!
stigger91 2 years ago