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Title:
HYDRAULIC DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2007002682
Kind Code:
A
Abstract:

To provide a hydraulic device of an internal combustion engine capable of maintaining the filtering function of a filter provided in an oil passage of an electric oil pump for a long time, and avoiding an enlargement of the electric oil pump in which an increase of pumping pressure losses attributable to clogging of the filter is assumed.

The hydraulic device comprises a mechanical oil pump 11 which is connected to and driven by an internal combustion engine 10, an electric oil pump 21 to be driven by a motor 20, an oil pan 30 to which the mechanical oil pump 11 and the electric oil pump 21 are connected, and a control unit 40 for controlling the operation of the electric oil pump 21 by controlling the motor 20. A strainer is provided in an oil passage 22 of the electric oil pump 21, and when the strainer is choked up, the control unit 40 reverses the electric oil pump 21 to perform the back-washing while the mechanical oil pump 11 is in operation.


Inventors:
KIKUCHI TAKASHI
Application Number:
JP2005180887A
Publication Date:
January 11, 2007
Filing Date:
June 21, 2005
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F01M11/03; F01M1/02
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda



 
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