Title:
FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2024/084567
Kind Code:
A1
Abstract:
This fuel pump comprises an electromagnetic suction valve having: a coil winding part formed by winding an electromagnetic coil on a bobbin; and a magnetic circuit formation part that constitutes a magnetic circuit when current flows in the electromagnetic coil. The magnetic circuit formation part has a yoke disposed so as to surround the coil winding part, and a prescribed portion opposing the coil winding part in the radial direction of the electromagnetic suction valve, with a gap therebetween. The size of the gap is set such that when impact force directed from the outside of the electromagnetic suction valve toward the inside in the radial direction is applied to the yoke or to the coil winding part, the coil winding part and the prescribed portion contact each other first.
Inventors:
USUI SATOSHI (JP)
NEMOTO MASASHI (JP)
OGURA KIYOTAKA (JP)
NEMOTO MASASHI (JP)
OGURA KIYOTAKA (JP)
Application Number:
PCT/JP2022/038707
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16K31/06; F02M59/36
Domestic Patent References:
| WO2022004431A1 | 2022-01-06 |
Foreign References:
| JP2012154295A | 2012-08-16 | |||
| JP2021014791A | 2021-02-12 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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