Title:
WORKING FLUID SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/090646
Kind Code:
A1
Abstract:
A working fluid supply system (100) is provided with: a first pump (10) and a second pump (11) which are driven by an engine (50); a first switching valve (22) capable of switching the supply destination of the second pump (11) to either one of the discharge side and the suction side of the first pump (10); a first switching control unit (46) for controlling the switching of the first switching valve (22); and a second switching valve (25) and a second switching control unit (47) which perform control such that, when the first switching valve (22) has been switched such that the supply destination of the second pump (11) is the suction side of the first pump (10), the suction side pressure of the first pump (10) is a prescribed first pressure (TP1).
Inventors:
HIRONAKA TSUYOSHI (JP)
NAGASHIMA MIDORI (JP)
TSUKUI KEN (JP)
MUROTA KAZUYA (JP)
NAGASHIMA MIDORI (JP)
TSUKUI KEN (JP)
MUROTA KAZUYA (JP)
Application Number:
PCT/JP2020/038594
Publication Date:
May 14, 2021
Filing Date:
October 13, 2020
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F04C14/00
Foreign References:
| US20090113888A1 | 2009-05-07 | |||
| JP2015197212A | 2015-11-09 | |||
| JP2019203015A | 2019-11-28 |
Other References:
See also references of EP 4056848A4
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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