发明名称 |
HIGH-PRESSURE FUEL SUPPLY PUMP WITH ELECTROMAGNETIC SUCTION VALVE |
摘要 |
To reduce collision noise created by the operation of an electromagnetic suction valve provided on a high pressure fuel supply pump. In the present invention, in order to achieve the above object, the mass of a member which collides by magnetic attractive force is reduced to reduce the noise to be generated. The thus configured present invention provides the following advantageous effects. The noise generated when a core and an anchor collide with each other by magnetic attractive force depends on the magnitude of the kinetic energy of a moving element. The kinetic energy to be consumed in the collision is only the kinetic energy of the anchor. The kinetic energy of a rod, being absorbed by a spring, does not contribute to the noise; thus, the energy when the anchor and the core collide with each other can be reduced, whereby the noise to be created can be reduced. |
申请公布号 |
EP2716902(A4) |
申请公布日期 |
2014.11.05 |
申请号 |
EP20120792867 |
申请日期 |
2012.05.31 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
KAWANO, TATSUO;TOKUO, KENICHIRO;USUI, SATOSHI;YAMADA, HIROYUKI;MIYAZAKI, KATSUMI |
分类号 |
F02M59/36;F02M51/00;F02M59/44;F02M59/46 |
主分类号 |
F02M59/36 |
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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