Patent ID: 9695776
Date: 2017-07-04
CPC Classifications: F02F

Claim:
1. A cylinder block comprising: a first bank; a second bank, the first bank and the second bank being arranged in a V-shape, the first bank and the second bank being arranged in positions offset from each other in a cylinder arrangement direction such that central axes of cylinders provided in the first bank do not intersect central axes of cylinders provided in the second bank; a press-fitting portion that is provided straddling a first end surface of the first bank and a second end surface of the second bank on one side in the cylinder arrangement direction of both the first bank and the second bank, the press-fitting portion protruding in the cylinder arrangement direction from the first end surface and the second end surface, and the press-fitting portion having a hole in a tip end of the press-fitting portion, wherein the first end surface protrudes in a direction in which the press-fitting portion protrudes in the cylinder arrangement direction, with respect to the second end surface; and a thickness of the press-fitting portion in a radial direction of the hole at a first portion that is connected to the first end surface is thinner than a thickness of the press-fitting portion in the radial direction of the hole at a second portion that is connected to the second end surface.