Title:
ELECTROMAGNETIC VALVE MECHANISM AND FUEL SUPPLY PUMP
Document Type and Number:
WIPO Patent Application WO/2023/203761
Kind Code:
A1
Abstract:
The present invention addresses the problem of reducing radiation sound from an electromagnetic valve mechanism. The electromagnetic valve mechanism is provided with a solenoid that drives a valve part. The solenoid has an electromagnetic coil, a stator that is disposed on an inner side in a radial direction of the electromagnetic coil, a mover that engages the valve part and generates a magnetic suction force between the mover and the stator, a yoke that is formed in a cylindrical shape surrounding the electromagnetic coil, and a lid member that blocks an opening part of the yoke. The stator protrudes from one opening of the yoke. The lid member is formed in a substantially annular shape having an inner peripheral part and an outer peripheral part. The inner peripheral part of the lid member is in contact with the stator, and the outer peripheral part of the lid member is fixed to the inner peripheral part of the yoke.
Inventors:
YAGAI MASAMICHI (JP)
ONOSE TORU (JP)
NAMBARA SHOGO (JP)
ONOSE TORU (JP)
NAMBARA SHOGO (JP)
Application Number:
PCT/JP2022/018575
Publication Date:
October 26, 2023
Filing Date:
April 22, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02M59/36
Domestic Patent References:
| WO2017056681A1 | 2017-04-06 |
Foreign References:
| JP2012154478A | 2012-08-16 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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