Title:
油圧回路装置
Document Type and Number:
Japanese Patent JP6824674
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic circuit device which can add a working fluid discharged from an electric oil pump at the high-discharge of a mechanical oil pump, and can easily perform the drive control of the electric oil pump.SOLUTION: In a hydraulic circuit device 10 having a mechanical oil pump 21 and an electric oil pump 22, and a supply oil passage 60 located at a downstream side of a discharge oil passage 51 in which a working fluid discharged from the mechanical oil pump circulates, the hydraulic circuit device comprises a first spool valve 30 which can switch a flow passage of the working fluid discharged from the electric oil pump between the two oil passages on the basis of hydraulic pressure which is generated by the mechanical oil pump. When the hydraulic pressure is high, the first spool valve is switched to a first oil passage for introducing the working fluid into the supply oil passage via the discharge oil passage, and when the hydraulic pressure is low, the first spool valve is switched to a second oil passage for introducing the working fluid into the supply oil passage not via the discharge oil passage.SELECTED DRAWING: Figure 1
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Inventors:
Hanaoka Masatoshi
Application Number:
JP2016179434A
Publication Date:
February 03, 2021
Filing Date:
September 14, 2016
Export Citation:
Assignee:
Subaru corporation
International Classes:
F15B11/02
Domestic Patent References:
| JP2001280458A | ||||
| JP2004263609A | ||||
| JP2005315271A | ||||
| JP2015197175A | ||||
| JP2017155926A |
Attorney, Agent or Firm:
Satoshi Eto