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See what really happens inside an engine

PostPosted: Sun Feb 10, 2008 11:07 pm
by Ric
Someone rigged up a high speed, heat resistant camera inside a cylinder, and filmed what happens as it is running!

http://gizmodo.com/gadgets/fourstroke-a ... 309138.php

PostPosted: Sun Feb 10, 2008 11:23 pm
by suff
now that is an awesome video :) well spotted Ric :)

PostPosted: Sun Feb 10, 2008 11:25 pm
by Ric
Someone had the great idea of putting a high-pressure, heat-resistant camera inside the cylinder of a four-stroke engine. Shooting at 1000 fps, the camera recorded just exactly what happens to make engines run. Suck, Squeeze, Bang, Blow!

In particular, you can see that the fuel burns, it doesn't explode.

PostPosted: Mon Feb 11, 2008 7:27 am
by WhiteGTB
Great find Ric AND that would all be happening in milliseconds or less too!

PostPosted: Mon Feb 11, 2008 8:02 am
by jp928
Curious that while you can see the inlet valve close, there is no similar movement of the exhaust valve visible - it goes from full open one frame to inlet opening next....
jp

PostPosted: Mon Feb 11, 2008 8:05 am
by Ric
jp928 wrote:Curious that while you can see the inlet valve close, there is no similar movement of the exhaust valve visible - it goes from full open one frame to inlet opening next....
jp

I don't think it shows a complete cycle. i.e. the video stops (and loops back to the start) just before the point where the next cycle should start, so in effect that bit is cut out of the video. It's a pity, would be better if it formed a complete cycle.

PostPosted: Mon Feb 11, 2008 9:31 am
by sundayDriver
great video, it goes to show how inefficient the valve system for getting air into (and exhaust gas out of) the engine really is.

PostPosted: Mon Feb 11, 2008 11:46 am
by jp928
I think Ric is correct, its not a complete cycle. Shame , would be good to be able to see things like valve timing overlap etc. at different revs and so on.
jp

PostPosted: Mon Feb 11, 2008 5:16 pm
by honkas
wow.. great find :lol:

definitely wish there was more...