Title:
HIGH-PRESSURE FUEL SUPPLY PUMP
Document Type and Number:
WIPO Patent Application WO/2018/092538
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a high-pressure fuel supply pump capable of holding a spring holding member while allowing the height of the pump body to be reduced. The high-pressure fuel supply pump is provided with: a pump body forming a pressurization chamber therein by an inner wall section; and a flange section for fixing the pump body to a high-pressure fuel supply pump attachment section. The pump has: a cylinder inserted into a hole part of the pump body from below such that the pressurization chamber is formed further above the uppermost surface of the cylinder; and a spring holding member having an outer peripheral section press-fitted to the pump body and a holding section holding a spring part for biasing the pump body between the outer peripheral section and the inner peripheral section. The spring-side lowermost end part of the holding surface of the spring holding member is disposed above the lowermost end part of the flange section.
Inventors:
SAITO ATSUJI (JP)
USUI SATOSHI (JP)
HASHIDA MINORU (JP)
SUGANAMI MASAYUKI (JP)
YAMADA HIROYUKI (JP)
TOKUO KENICHIRO (JP)
YAGAI MASAMICHI (JP)
SASO YUTA (JP)
USUI SATOSHI (JP)
HASHIDA MINORU (JP)
SUGANAMI MASAYUKI (JP)
YAMADA HIROYUKI (JP)
TOKUO KENICHIRO (JP)
YAGAI MASAMICHI (JP)
SASO YUTA (JP)
Application Number:
PCT/JP2017/038633
Publication Date:
May 24, 2018
Filing Date:
October 26, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02M59/44; F02M59/34; F02M59/36
Foreign References:
| JP2016094913A | 2016-05-26 | |||
| JP2014088838A | 2014-05-15 | |||
| EP3088725A1 | 2016-11-02 |
Other References:
See also references of EP 3543519A4
Attorney, Agent or Firm:
TODA Yuji (JP)
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