Quote:
Originally Posted by KRAM36
Yes, that's the principle of why air wants to "move into the engine", but the engine is working like a pump too. The downward stroke of the piston with the intake valve open creates a pull on the air into the cylinder. The rings on the piston are just as important to filling the cylinder with air as it is to the compression of the air.
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So exactly how are air molecules joined together such that one can pull another? Little strings? High pressure pushing into low pressure is intuitively obvious, but low pressure "pulling" in high pressure? Puzzling.
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