发明名称 |
Mechanism for Restraining Fuel Pressure Pulsation and High Pressure Fuel Supply Pump of Internal Combustion Engine with Such Mechanism |
摘要 |
A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.
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申请公布号 |
US2013149177(A1) |
申请公布日期 |
2013.06.13 |
申请号 |
US201313754932 |
申请日期 |
2013.01.31 |
申请人 |
HITACHI, LTD.;HITACHI, LTD. |
发明人 |
USUI SATOSHI;TAMURA SHINGO;MIYAZAKI KATSUMI;TAKAHASHI SUNAO;SUGANAMI MASAYUKI;HASHIDA MINORU |
分类号 |
F04B19/00 |
主分类号 |
F04B19/00 |
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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