Title:
OIL PUMP DEVICE AND RELIEF VALVE
Document Type and Number:
WIPO Patent Application WO/2015/045442
Kind Code:
A1
Abstract:
This oil device is equipped with an oil pump body, and a relief valve that is disposed on a discharge path of the oil pump body and opens/closes a relief path in accordance with the pressure in the discharge path. The relief valve includes a valve body for opening/closing the relief path, a valve body housing part for housing the valve body in such a manner as to allow the valve body to move between closed and open positions, a biasing member for biasing the valve body toward the closed position, and a seat part for seating the valve body biased by the biasing member in the closed position. In addition, the valve body housing part has an oil introduction hole part that is disposed on the discharge path-side end and has an inner diameter greater than or equal to the outer diameter of the barrel part of the valve body.
Inventors:
TERASHIMA HIROHITO (JP)
Application Number:
PCT/JP2014/056687
Publication Date:
April 02, 2015
Filing Date:
March 13, 2014
Export Citation:
Assignee:
AISIN SEIKI (JP)
International Classes:
F04C14/28; F04C14/26; F04C15/06
Foreign References:
| JPS4912517U | 1974-02-02 | |||
| JP2007138732A | 2007-06-07 | |||
| JPS56143384A | 1981-11-09 | |||
| JPH01144576U | 1989-10-04 | |||
| JP2012202267A | 2012-10-22 | |||
| JPH05195742A | 1993-08-03 |
Attorney, Agent or Firm:
MIYAZONO, Hirokazu (JP)
Hirokazu Miyazono (JP)
Hirokazu Miyazono (JP)
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