Engine Valve Train

The Engine Valve Train is a crucial component of an internal combustion engine that controls the opening and closing of the intake and exhaust valves. It consists of various parts such as the camshaft, valve springs, pushrods, rocker arms, and valves.

The camshaft is responsible for controlling the timing of the valve opening and closing by rotating at the same speed as the crankshaft. The camshaft has lobes that push against the valve lifters or followers, which in turn push against the pushrods.

The pushrods transmit the motion from the camshaft to the rocker arms, which are responsible for opening and closing the valves. The rocker arms pivot on a shaft and have a contact point with the pushrod at one end and the valve at the other end.

Valve springs are used to keep the valves closed when the camshaft is not pushing against them. They provide the necessary force to overcome the pressure of the combustion gases during the engine's operation.

Overall, the engine valve train plays a critical role in ensuring the proper timing and operation of the intake and exhaust valves, which is essential for the engine to function efficiently and effectively.