Title:
HIGH-PRESSURE FUEL SUPPLY PUMP WITH ELECTROMAGNETIC SUCTION VALVE
Document Type and Number:
WIPO Patent Application WO/2012/165555
Kind Code:
A1
Abstract:
An electromagnetic suction valve provided to a high-pressure fuel supply pump produces reduced collision noise when operated. In order to achieve the above, the mass of a member colliding due to a magnetic attraction force is reduced to reduce the occurring noise. The present invention configured in this way provides the following effect. The level of noise generated when a core and an anchor collide with each other due to the magnetic attraction force depends on the magnitude of kinetic energy of a movable section. Kinetic energy consumed by the collision is only the kinetic energy of the anchor. The kinetic energy of a rod is absorbed by a spring and therefore does not contribute to the noise. As a result, energy occurring when the core and the anchor collide with each other can be reduced and occurring noise can be reduced.
Inventors:
KAWANO TATSUO (JP)
TOKUO KENICHIRO (JP)
USUI SATOSHI (JP)
YAMADA HIROYUKI (JP)
MIYAZAKI KATSUMI (JP)
TOKUO KENICHIRO (JP)
USUI SATOSHI (JP)
YAMADA HIROYUKI (JP)
MIYAZAKI KATSUMI (JP)
Application Number:
PCT/JP2012/064093
Publication Date:
December 06, 2012
Filing Date:
May 31, 2012
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
KAWANO TATSUO (JP)
TOKUO KENICHIRO (JP)
USUI SATOSHI (JP)
YAMADA HIROYUKI (JP)
MIYAZAKI KATSUMI (JP)
KAWANO TATSUO (JP)
TOKUO KENICHIRO (JP)
USUI SATOSHI (JP)
YAMADA HIROYUKI (JP)
MIYAZAKI KATSUMI (JP)
International Classes:
F02M59/36; F02M51/00; F02M59/44; F02M59/46
Foreign References:
| JP2010014121A | 2010-01-21 | |||
| JP2003148292A | 2003-05-21 | |||
| JP2009041420A | 2009-02-26 | |||
| JP2002048033A | 2002-02-15 |
Other References:
See also references of EP 2716902A4
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
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Claims: