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Title:
FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2022/130698
Kind Code:
A1
Abstract:
This fuel pump comprises a damper, an intake valve chamber, a pressurizing chamber, a relief valve chamber, a relief valve mechanism, and a shock wave absorber. The shock wave absorber is provided in the relief valve chamber, and is disposed facing a relief valve holder on the downstream side in the direction in which the relief valve holder moves when the relief valve mechanism is released.

Inventors:
USUI SATOSHI (JP)
HASHIDA MINORU (JP)
Application Number:
PCT/JP2021/031698
Publication Date:
June 23, 2022
Filing Date:
August 30, 2021
Export Citation:
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Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02M63/00; F02M59/44
Domestic Patent References:
WO2013035132A12013-03-14
Foreign References:
JP2020045891A2020-03-26
JP2018523778A2018-08-23
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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