Title:
WORKING FLUID SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/111739
Kind Code:
A1
Abstract:
A working fluid supply system (100) is provided with: first and second oil pumps (10, 11) driven by an engine (50); a switching valve (24) for connecting a discharge passage (17) of the second oil pump (11) with a supply passage (14) and/or a first drain passage (20); and a controller (40) that performs switching of the switching valve (24). The controller (40) performs switching of the switching valve (24) over a switching time period set in accordance with the magnitude of pressure fluctuation predicted to occur in the supply passage (14) at the time of instantaneous switching of the switching valve (24).
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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/JP2020/038595
Publication Date:
June 10, 2021
Filing Date:
October 13, 2020
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F15B11/02; F04C11/00; F15B11/00; F16H61/00
Foreign References:
| JP2010014101A | 2010-01-21 | |||
| JPH0626453A | 1994-02-01 | |||
| JP2019220614A | 2019-12-26 |
Other References:
See also references of EP 4071367A4
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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