Title:
HYDRAULIC PRESSURE CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2019/098103
Kind Code:
A1
Abstract:
This hydraulic pressure control valve is provided with: a valve body demarcating an internal space, first and second introduction ports, and a discharge port; a valve needle disposed to be capable of moving between a discharge-possible position and a discharge-impossible position; a member which urges the valve needle toward the discharge-impossible position side; and a device capable of varying an amount of operating oil introduced into the second introduction port. The valve needle is provided with a pressure receiving surface which accepts, from the operating oil from the first introduction port, a force directed toward the discharge-possible position side, and a pressure receiving surface which accepts, from the operating oil from the second introduction port, a force directed toward the discharge-impossible position side.
Inventors:
ENAMI KATSUHIRO (JP)
Application Number:
PCT/JP2018/041302
Publication Date:
May 23, 2019
Filing Date:
November 07, 2018
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F15B11/028; F01M1/16; F16K17/06
Foreign References:
| JPS4631889B | ||||
| JPH04105676U | 1992-09-11 | |||
| JP2009191634A | 2009-08-27 | |||
| US2890715A | 1959-06-16 | |||
| JPS63225701A | 1988-09-20 | |||
| JPH0624276U | 1994-03-29 | |||
| JPH01120405A | 1989-05-12 |
Attorney, Agent or Firm:
HIBIYA Yukihiko et al. (JP)
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