It is mounted in the cylinder liner of the
cylinder, and the piston and cylinder head composed of combustion chamber. The
cylinder is divided into dry and wet cylinder liner two categories. On the back
of the cooling water does not contact the cylinder liner is dry cylinder,
cylinder sleeve and the back contact cooling water is wet liner. Dry liner
thickness is relatively thin, simple structure convenient processing. Wet
cylinder liner direct contact cooling water, so conducive to the cooling of the
engine, the simplification of engine.