Question:

Describe the actions of the piston and the intake and exhaust valves during each of the four piston strokes.?

by Guest32260  |  earlier

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Technology Automotive

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  1. Intake - Exhaust valve is closed, intake valve opens, piston travels to the bottom of the cylinder

    Compression - Exhaust valve is closed, intake valve closes, piston rises to the top of it's stroke

    Ignition - Exhaust and intake valves are closed, gasoline ignition pushes the piston to the bottom of the stroke (turning the crank shaft)

    Exhaust - Exhaust valve opens, intake valve closed, piston rises to the top of its stroke

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