ELECTROMAGNETIC VALVE MECHANISM AND FUEL PUMP

Title:

ELECTROMAGNETIC VALVE MECHANISM AND FUEL PUMP

Document Type and Number:

WIPO Patent Application WO/2022/249550

Kind Code:

A1

Abstract:

The present invention suppresses abrasion of a rod or a component where the rod contacts. This electromagnetic suction valve mechanism (electromagnetic valve mechanism) is provided with a suction valve (valve body), a rod engaging 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 has 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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Inventors:

ITO TAKAFUMI (JP)
OGURA KIYOTAKA (JP)
NEMOTO MASASHI (JP)
TOKUO KENICHIRO (JP)

Application Number:

PCT/JP2022/004021

Publication Date:

December 01, 2022

Filing Date:

February 02, 2022

Export Citation:

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Assignee:

HITACHI ASTEMO LTD (JP)

International Classes:

F02M59/36; F02M59/44

Domestic Patent References:

WO2018221077A1

2018-12-06

Foreign References:

JP2016075198A	2016-05-12
JP2013002332A	2013-01-07