发明授权
- 专利标题: High-pressure fuel pump
- 专利标题(中): 高压燃油泵
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申请号: US10443850申请日: 2003-05-23
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公开(公告)号: US07024980B2公开(公告)日: 2006-04-11
- 发明人: Takuya Uryu , Yoshihiko Onishi
- 申请人: Takuya Uryu , Yoshihiko Onishi
- 申请人地址: JP Tokyo
- 专利权人: Mitshbishi Denki Kabushiki Kaisha
- 当前专利权人: Mitshbishi Denki Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2002-325267 20021108
- 主分类号: F01B9/06
- IPC分类号: F01B9/06
摘要:
A high-pressure fuel pump of a simple construction is capable of distributing the position of contact between a tappet and a cam so as to improve durability of the tappet without causing seizure of a piston. A cylinder is arranged in a housing, and the piston is received in the cylinder for sliding reciprocation so that fuel is sucked into the cylinder and pressurized by the piston. The tappet is arranged inside one end of the housing for reciprocation, and contacts the cam, which rotates with a camshaft of an engine, so as transmit a driving force of the engine to the piston. A sleeve is arranged between the tappet and the housing, and clearance fitted to an outer peripheral surface of the tappet and an inner peripheral surface of the housing. The tappet is caused to rotate on its own axis by a frictional force generated between the cam and the tappet.
公开/授权文献
- US20040091377A1 High-pressure fuel pump 公开/授权日:2004-05-13