Zylinderblock

摘要

A cylinder block (BC) comprising a cylinder block body (1) and a cylinder liner block (BL) filled in the cylinder block body (1) in a cast-in manner. The cylinder liner block (BL) is formed from a material having a rigidity larger than that of the cylinder block body (1), and the cylinder liner block (BL) comprises a liner section (4) filled in a cylinder barrel portion (1U) of the cylinder block body (1) in a cast-in manner, and a reinforcing wall section filled in a bearing wall of a crank case portion (1L) of the cylinder block body (1) in a cast-in manner. Thus, it is possible to increase the wear resistance of cylinders in the cylinder block (BL), as well as to provide an increase in performance by reductions in vibration and noise of the cylinder block (BL), and to provide reductions in size, weight and cost of the cylinder block (BL) by a reduction in thickness of the bearing walls (13).