发明授权
- 专利标题: Cylinder block for multicylinder engine
- 专利标题(中): 多缸发动机缸体
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申请号: US10227485申请日: 2002-08-26
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公开(公告)号: US06945213B2公开(公告)日: 2005-09-20
- 发明人: Hiroyuki Kawakubo , Tetsuya Nakayasu , Tadashi Kato , Nobuyuki Oya , Tatsuya Hirata
- 申请人: Hiroyuki Kawakubo , Tetsuya Nakayasu , Tadashi Kato , Nobuyuki Oya , Tatsuya Hirata
- 申请人地址: JP Tokyo
- 专利权人: Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人: Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2001-264494 20010831
- 主分类号: F02B75/18
- IPC分类号: F02B75/18 ; F02F1/00 ; F02F7/00
摘要:
A cylinder block of a multicylinder engine, having a cylinder main body in which multiple cylinder bores are provided in parallel in an axial direction of a crankshaft, and a crankcase having plural journal walls. The crankcase is integrally provided with the cylinder main body, in which a communication hole extending in parallel to the axial line of the crankshaft is provided in the cylinder main body and the crankcase while at least a part of which is opened in the inner peripheral surface of the cylinder bore. This permits the cylinder block to be downsized, increases freedom of positional setting of the communication hole, and reduces ventilation resistance of air flow through the communication hole. A cut-processed member is expanded further outward from a piston slide surface and is formed along a radial direction of cylinder bores, in inner surfaces of the cylinder bores in at least portions closer to a piston at an open edge of a communication hole.
公开/授权文献
- US20030041834A1 Cylinder block for multicylinder engine 公开/授权日:2003-03-06