CYLINDER BLOCK AND A PROCESS FOR CASTING THE SAME

摘要

A cylinder block comprising a cylinder block body and a cylinder liner block filled in the cylinder block body in a cast-in manner. The cylinder liner block is formed from a material having a rigidity larger than that of the cylinder block body, and the cylinder liner block comprises a liner section filled in a cylinder barrel portion of the cylinder block body in a cast-in manner, and a reinforcing wall section filled in a bearing wall of a crank case portion of the cylinder block body in a cast-in manner. Thus, it is possible to increase the wear resistance of cylinders in the cylinder block, as well as to provide an increase in performance by reductions in vibration and noise of the cylinder block, and to provide reductions in size, weight and cost of the cylinder block by a reduction in thickness of the bearing walls.