SOLENOID INTAKE VALVE, AND HIGH-PRESSURE FUEL PUMP PROVIDED THEREWITH

Title:

SOLENOID INTAKE VALVE, AND HIGH-PRESSURE FUEL PUMP PROVIDED THEREWITH

Document Type and Number:

WIPO Patent Application WO/2019/012969

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a solenoid intake valve which improves assembly by avoiding increasing the press fitting load in the case in which a solenoid valve mechanism 300 is inserted and fixed in a hole formed in a pump body 1, and to provide a high-pressure fuel pump. This solenoid valve mechanism is provided with a valve body that opens and closes a flow path, a movable core, and a magnetic core that attracts the movable core, is inserted and fixed in an insertion hole, and is provided with: a press-fitting part which is formed on the outer peripheral portion on the distal end in the insertion direction and which is press-fitted into a small-diameter insertion hole; a clearance-fitting part which, disposed towards the entrance in the insertion direction with respect to the press-fitting part, is formed on an outer peripheral portion having an outer diameter larger than that of the press fitting part, and which is arranged having a prescribed clearance from a large-diameter insertion hole having a larger diameter than that of the small-diameter insertion hole; and a welded part which, disposed towards the entrance in the insertion direction with respect to the clearance-fitting part, is welded to the member in which the insertion hole is formed.

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Inventors:

SASO YUTA (JP)
HAYATANI MASAHIKO (JP)
UCHIYAMA YASUHISA (JP)
SUGANAMI MASAYUKI (JP)
MUNAKATA AKIHIRO (JP)
NEMOTO MASASHI (JP)
AKIYAMA MORITSUGU (JP)

Application Number:

PCT/JP2018/023944

Publication Date:

January 17, 2019

Filing Date:

June 25, 2018

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

International Classes:

F02M59/36; F02M59/44

Domestic Patent References:

WO2017038298A1	2017-03-09
WO2016208359A1	2016-12-29

Foreign References:

JP2012082810A	2012-04-26
JP2017066956A	2017-04-06

Attorney, Agent or Firm:

TODA Yuji (JP)

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