Title:
FLUID PRESSURE EQUIPMENT AND FLUID PRESSURE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/070149
Kind Code:
A1
Abstract:
A valve device 100 comprises a housing 10 provided with a load pressure passage 15 for guiding a load pressure Pls to a variable displacement pump having a discharge capacity controlled in accordance with a self-pressure Pps that is discharged by itself and the supplied load pressure Pls. The housing 10 is further provided with a pump passage 11 for guiding a hydraulic oil that is sucked from a tank and discharged by the pump, a tank passage 12 for returning the hydraulic oil discharged from the pump to the tank, and a communication passage 17 with both ends communicating with the tank passage 12. At least a portion of the communication passage 17 is adjacent to the load pressure passage 15 while being spaced apart only by a wall of the housing 10, without another passage for guiding the hydraulic oil interposed therebetween.
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Inventors:
ADACHI TAKAAKI (JP)
Application Number:
PCT/JP2023/026371
Publication Date:
April 04, 2024
Filing Date:
July 19, 2023
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F15B21/0427; F15B11/02
Foreign References:
| JPH05187411A | 1993-07-27 | |||
| JPH0432247B2 | 1992-05-28 | |||
| JPH075283Y2 | 1995-02-08 | |||
| US20190331144A1 | 2019-10-31 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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