Title:
ELECTROMAGNETIC VALVE MECHANISM AND FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2023/238214
Kind Code:
A1
Abstract:
The present invention suppresses abrasion of a rod or a component where the rod contacts. An electromagnetic suction valve mechanism (electromagnetic valve mechanism) is provided with a suction valve (valve body), a rod engaging with the suction valve, and a magnetic attraction force generation part that generates a magnetic attraction force for moving the rod in an axial direction. The rod is provided with a low friction part. The low friction part is set to have such a frictional coefficient that a frictional force generated between the rod and a rod contact component where the rod contacts becomes smaller than a rotational propulsive force of the rod.
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| WO/2006/106016 | PIEZOELECTRIC ACTUATOR WITH A LABYRINTH SEAL |
| WO/2004/106727 | INJECTOR ASSEMBLY |
Inventors:
IIZUKA AKIRA (JP)
OMATA SHIGEHIKO (JP)
TAKAOKU ATSUSHI (JP)
AKIYAMA MORITSUGU (JP)
OMATA SHIGEHIKO (JP)
TAKAOKU ATSUSHI (JP)
AKIYAMA MORITSUGU (JP)
Application Number:
PCT/JP2022/022873
Publication Date:
December 14, 2023
Filing Date:
June 07, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02M59/46; F02M59/36
Domestic Patent References:
| WO2019207908A1 | 2019-10-31 | |||
| WO2020100398A1 | 2020-05-22 |
Foreign References:
| JPH0547653U | 1993-06-25 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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