Title:
FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2022/091553
Kind Code:
A1
Abstract:
A fuel pump provided with: a pump body; and a spring arranged in the pump body and adjusting the flow rate of a fuel. The spring has: a moving element having a predetermined urging force; a first end turn provided at one end portion of the moving element; and a second end turn provided at the other end portion of the moving element. Further, the number of turns of the first end turn and the number of turns of the second end turn are set to different numbers of turns.
Inventors:
ITO TAKAFUMI (JP)
OGURA KIYOTAKA (JP)
NEMOTO MASASHI (JP)
OGURA KIYOTAKA (JP)
NEMOTO MASASHI (JP)
Application Number:
PCT/JP2021/031531
Publication Date:
May 05, 2022
Filing Date:
August 27, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16K13/00; F02M59/46
Domestic Patent References:
| WO2018221077A1 | 2018-12-06 | |||
| WO2018003435A1 | 2018-01-04 | |||
| WO2019044130A1 | 2019-03-07 |
Foreign References:
| JP2005053219A | 2005-03-03 | |||
| JPS62197773U | 1987-12-16 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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