发明名称 |
High-pressure fuel pump |
摘要 |
A simple structured high-pressure fuel pump. A fuel pump comprises a reciprocably-supported cylinder, a pressurizing chamber using part of the outer surface of the cylinder as the wall surface which move to change the internal volume, a fuel intake passage forming a fuel passage which introduces fuel to the pressurizing chamber, a fuel discharge passage for the compressed fuel coming out from the pressurizing chamber. A fuel intake valve is provided in fuel intake passage. A fuel discharge valve is provided in said fuel discharge passage. A connecting passage connects upstream side of the intake valve in the fuel intake passage and the downstream side of it. A check valve which flows fuel from the fuel discharge flow passage to the fuel intake passage is provided in the connecting passage.
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申请公布号 |
US2003219346(A1) |
申请公布日期 |
2003.11.27 |
申请号 |
US20030442203 |
申请日期 |
2003.05.21 |
申请人 |
HITACHI, LTD.;HITACHI CAR ENGINEERING CO., LTD. |
发明人 |
ABE MASAMI;YAMADA HIROYUKI;ONOSE TORU;SAITO ATSUJI;USUI SATOSHI;KOTAKI MASAYOSHI;ODAKURA HIROSHI |
分类号 |
F02M55/00;F02M55/02;F02M55/04;F02M59/10;F02M59/34;F02M59/36;F02M59/44;F02M59/46;F02M63/00;F02M63/02;F04B49/035;F04B49/24;F04B53/16;(IPC1-7):F04B49/00 |
主分类号 |
F02M55/00 |
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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