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Patent Searching and Data


Title:
OIL SUPPLY DEVICE AND METHOD OF CONTROLLING ELECTRIC OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2016/190121
Kind Code:
A1
Abstract:
The objective of the present invention is to provide an oil supply device in which a negative pressure in a pump chamber is reduced or eliminated when an electric oil pump is shut down, thereby preventing air from entering the pump chamber and allowing oil to be supplied or recirculated smoothly. This oil supply device (10) includes: an electric oil pump (11) in which a rotary volumetric change pump (20) provided with an inner rotor (21) and an outer rotor (22) is caused to operate by means of a motor (12); and an electric oil pump controller (13) which controls the motor in such a way that, when the electric oil pump (11) is to be shut down, the rotary volumetric change pump (20) is temporarily shut down, after which the rotary volumetric change pump (20) is caused to rotate through a prescribed angle in the opposite direction to the direction of rotation during oil supply, and is then shut down.

Inventors:
YASHIMA, Kan (309 Sotoyama, Takizawa-sh, Iwate 43, 〒0200643, JP)
DOI, Takashi (309 Sotoyama, Takizawa-sh, Iwate 43, 〒0200643, JP)
Application Number:
JP2016/064163
Publication Date:
December 01, 2016
Filing Date:
May 12, 2016
Export Citation:
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Assignee:
MIKUNI CORPORATION (13-11, Sotokanda 6-chome Chiyoda-k, Tokyo 21, 〒1010021, JP)
International Classes:
F04C14/06; F04B49/02; F04C2/10; F04C15/00; F04C15/06
Foreign References:
JPH0429774A1992-01-31
JPH0630482U1994-04-22
JP2007291962A2007-11-08
JPH0960594A1997-03-04
JPH11164584A1999-06-18
Other References:
See also references of EP 3306095A4
Attorney, Agent or Firm:
NISHIYAMA, Takahiro (#202, 1239-2 Sato, Kawaguchi-sh, Saitama 05, 〒3340005, JP)
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