Engin Valve

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Designed by Solid worksThe valve which allows mixture into the cylinder is the inlet valve; the one through which the spent gases escape is the exhaust valve. They are designed to open and close at precise moments, to allow the engine to run efficiently at all speeds.The operation is controlled by pear-shaped lobes, called cams, on a rotating shaft, the camshaft , driven by a chain, a belt, or a set of gears from the crankshaft .