Title:
ELECTROMAGNETIC VALVE MECHANISM AND HIGH-PRESSURE FUEL SUPPLY PUMP
Document Type and Number:
WIPO Patent Application WO/2021/100439
Kind Code:
A1
Abstract:
The objective of the present invention is to ensure a gap between components on a suction-valve side and components on an anchor side when the valve is closed, and enable the valve to close reliably, regardless of the cumulative tolerance of a plurality of structural components. Provided is an electromagnetic valve mechanism 300 provided with an anchor assembly 36 and a magnetic core 33 between which magnetic attraction force acts, and a suction valve 30 configured so as to be able to separate from and make contact with the anchor assembly 36, wherein: the anchor assembly 36 has a first anchor assembly component 36a having an opposing surface 36ab opposing the magnetic core 33, a second anchor assembly component 36b configured integrally with the first anchor assembly component 36a, and a press-fitting part 36c for securing the first anchor assembly component 36a and the second anchor assembly component 36b; and the press-fitting length L1 of the press-fitting part 36c is set to the length by which the second anchor assembly component 36b and the suction valve 30 separate when the suction valve 30 is in a closed state.
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Inventors:
TAMURA SHINGO (JP)
YAMADA HIROYUKI (JP)
OGURA KIYOTAKA (JP)
HASHIDA MINORU (JP)
YAMADA HIROYUKI (JP)
OGURA KIYOTAKA (JP)
HASHIDA MINORU (JP)
Application Number:
PCT/JP2020/040756
Publication Date:
May 27, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16K31/06; F02M59/36; F02M59/46
Domestic Patent References:
| WO2019097915A1 | 2019-05-23 |
Foreign References:
| JP2015190532A | 2015-11-02 | |||
| JP2015108409A | 2015-06-11 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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