Title:
Fluid supply unit
Document Type and Number:
Japanese Patent JP6096888
Kind Code:
B2
Abstract:
An engine cooling device (1) includes: a first supply pump (11) driven by an engine (EG); a second supply pump (12) driven by an electric motor (M); a first fluid path switching valve (V1) that switches between a supply state in which a cooling fluid is supplied by the first supply pump to the engine and a restricted state in which the supply of the cooling fluid to the engine is restricted; a temperature detector (15) that detects the temperature of the engine (engine cooling water temperature); a revolution speed detector (14) that detects the revolution speed of the engine; and a controller (CN) that controls the actuation of the electric motor and the fluid path switching valve on the basis of detection results from the temperature detector and the revolution speed detector. When the temperature of the engine detected by the temperature detector is less than a first predetermined temperature, the controller performs control to restrict the supply of the cooling fluid from the first supply pump to the engine by switching the fluid path switching valve to the restricted state, and to supply the cooling fluid from the second supply pump to the engine by performing control to drive the electric motor.
Inventors:
Hirotada Yoshitani
Takeshi Byochi
Takeshi Byochi
Application Number:
JP2015513358A
Publication Date:
March 15, 2017
Filing Date:
April 23, 2013
Export Citation:
Assignee:
Tbk corporation
International Classes:
F04B49/06; F01P7/16
Domestic Patent References:
| JP2007182857A | ||||
| JP2006242022A | ||||
| JP2004316472A |
Attorney, Agent or Firm:
Masago Onishi
Hiroshi Kawano
Namiki Toshiaki
Hiroshi Kawano
Namiki Toshiaki