发明名称 |
High Pressure Fuel Supply Pump |
摘要 |
In a high pressure fuel supply pump for transmitting rotation of a cam to a reciprocating plunger via a tappet and a retainer, a diametric force acting on the plunger is reduced. The pump includes the retainer disposed on the plunger and a return spring exerting an urging force on the retainer in a direction of the tappet. A clearance between a plunger leading end and a tappet bottom surface opposed thereto is set to be greater than a clearance between a retainer bottom surface and the tappet bottom surface opposed thereto, and a clearance between a retainer inside diameter section and a plunger peripheral surface section opposed thereto is set to be greater than a clearance between a retainer outside diameter section and a tappet inner wall opposed thereto.
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申请公布号 |
US2012180764(A1) |
申请公布日期 |
2012.07.19 |
申请号 |
US201213349082 |
申请日期 |
2012.01.12 |
申请人 |
ARITOMI SHUNSUKE;TOKUO KENICHIRO;SUGANAMI MASAYUKI;USUI SATOSHI;MIYAZAKI KATSUMI;HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
ARITOMI SHUNSUKE;TOKUO KENICHIRO;SUGANAMI MASAYUKI;USUI SATOSHI;MIYAZAKI KATSUMI |
分类号 |
F02M37/04 |
主分类号 |
F02M37/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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