Title:
HIGH-PRESSURE FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2019/097991
Kind Code:
A1
Abstract:
Provided is a high-pressure fuel pump with which excellent magnetic characteristics and reliability with respect to cracks can be ensured. A fixed core 39 is a precipitation hardening-type ferritic stainless steel (a ferritic precipitation hardening-type metal). An anchor 36 is a precipitation hardening-type ferritic stainless steel which is attracted by a magnetic attraction force of the fixed core 39. An outer core 38 has an inner circumferential surface along which the outer circumferential surface of the anchor 36 slides. A seal ring 48 is formed from a material having a lower hardness than the fixed core 39 and the anchor 36, and connects the fixed core 39 and the outer core 38.
Inventors:
TOKUO KENICHIRO (JP)
USUI SATOSHI (JP)
KUSAKABE RYO (JP)
USUI SATOSHI (JP)
KUSAKABE RYO (JP)
Application Number:
PCT/JP2018/040035
Publication Date:
May 23, 2019
Filing Date:
October 29, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02M59/36
Domestic Patent References:
WO2017056681A1 | 2017-04-06 |
Foreign References:
JP2004300540A | 2004-10-28 | |||
JP2002004013A | 2002-01-09 | |||
JP2013002332A | 2013-01-07 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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