Re: Please explain how the intake and exhaust manifold works

Posted by popinjohn on October 21, 2019 at 17:59:58 from (24.171.7.83):

In Reply to: Please explain how the intake and exhaust manifold works posted by Graveyard1984 on October 21, 2019 at 17:30:01:

My way of saying it is that the intake manifold facilitates the
volume of air required when the piston moves down on the
Intake stroke with the intake valve open.
Likewise the exhaust manifold facilitates the removal of the
spent air fuel after combustion with the exhaust valve open.
All possible because atmospheric pressure is about 14.7 psi,
and the engine is an air pump.
Air is displaced by the movement of the pistons and positive
atmospheric pressure rushes to fill the void.

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