Basic Concept Of Cylinder

The cavity in the cylinder block of an internal combustion engine in which the piston is placed. It is the orbit of the piston movement, in which the gas burns and expands, and through the cylinder wall, it can also dissipate a part of the residual heat of the explosion transmitted by the gas, so that the engine maintains a normal working temperature. The cylinders are available in integral and single cast. The single casting type is divided into dry type and wet type. When the cylinder and the cylinder block are cast as a whole, it is called an integral cylinder; when the cylinder and the cylinder block are cast separately, the single-cast cylinder barrel is called a cylinder liner. The cylinder liner that is in direct contact with the cooling water is called a wet cylinder liner; the one that is not in direct contact with the cooling water is called a dry cylinder liner. In order to maintain the tightness of the contact between the cylinder and the piston and reduce the friction loss of the piston moving in it, the inner wall of the cylinder should have high machining accuracy and precise shape and size.