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Patent Searching and Data


Title:
HYDRAULIC SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2018009539
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic supply device enabling reduction in the size of the device while suppressing reverse rotation of a pump section driven by an electric motor.SOLUTION: A hydraulic supply device 10 includes: a first pump section 42 driven by using driving force of an engine 101; a second pump section 51 driven by an electric motor 52; an oil passage formation member 30 that is disposed between the first pump section 42 and the second pump section 51 and in which a common oil supply passage 31 for supplying working fluid L to the first pump section 42 and the second pump section 51 and a common oil discharge passage 33 for discharging the working fluid from the first pump section 42 and the second pump section 51 are formed; and a control section 2 for supplying a motor electric current to the electric motor 52. When the first pump 42 is driven while the second pump 51 is not driven, the control section 2 supplies the motor electric current to the electric motor 52 so as to suppress reverse rotation of the second pump section 51 caused by the working fluid L flowing from the oil discharge passage 33 to the second pump section 51.SELECTED DRAWING: Figure 2

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Inventors:
IIMURA DAISUKE
KOBAYASHI HIROAKI
UNNO KEISUKE
Application Number:
JP2016140008A
Publication Date:
January 18, 2018
Filing Date:
July 15, 2016
Export Citation:
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Assignee:
JTEKT CORP
International Classes:
F04C15/00; F04C2/10; F04C11/00; F04C14/02
Attorney, Agent or Firm:
Tadao Hirata
Takashi Nomiyama
Hiroyuki Ito