Title:
電磁吸入弁を備えた高圧燃料供給ポンプ
Document Type and Number:
Japanese Patent JP5537498
Kind Code:
B2
Abstract:
To reduce collision noise created by the operation of an electromagnetic suction valve (39) 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 (33) and an anchor (31b) 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.
Inventors:
Tatsuo Kono
Kenichiro Tokuo
Satoshi Usui
Hiroyuki Yamada
Miyazaki Katsumi
Kenichiro Tokuo
Satoshi Usui
Hiroyuki Yamada
Miyazaki Katsumi
Application Number:
JP2011123026A
Publication Date:
July 02, 2014
Filing Date:
June 01, 2011
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
F02M59/36; F02M51/00; F02M59/44; F02M59/46
Domestic Patent References:
| JP2010014121A | ||||
| JP2003148292A | ||||
| JP2009041420A |
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki
Yuji Toda
Shigemi Iwasaki