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Old 09-17-2009, 04:31 PM   #22
VettezukiVettezuki is offline
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Quote:
Originally Posted by enkeivette View Post
I like Ben's definition, except for where he said the pressure in the exhaust is greater than that in the cylinder. If this were true, your exhaust wouldn't flow out. . . .
Sure it would. It flows out to the atmosphere where the pressure is lower and some back into the cylinder where the pressure is lower. Imagine pressurizing a tube of air. Now open a vent on both ends. Pressure "normalizes" from both ends.
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