What is the function of the engine camshaft?

[DiBenjamin]

The function of the camshaft is to open the valves. The following is a related introduction about the engine camshaft: 1. Structure: The main body of the camshaft is a cylindrical rod approximately the same length as the cylinder group. It is fitted with several cams to drive the valves. The camshaft is supported in the camshaft bearing hole through the camshaft journal, so the number of camshaft journals is an important factor affecting the support stiffness of the camshaft. If the stiffness of the camshaft is insufficient, bending deformation will occur during operation, affecting the valve timing. 2. Camshaft position: The position of the camshaft can be divided into three types: lower-mounted, mid-mounted, and top-mounted. The camshaft of the lower-mounted valve mechanism is located in the crankcase, the camshaft of the mid-mounted valve mechanism is located in the upper part of the engine block, and the camshaft of the top-mounted valve mechanism is located on the cylinder head.