Title:
PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/062089
Kind Code:
A1
Abstract:
This pump device 10 is provided with a shaft 41, a motor unit 20 which rotates the shaft 41, and a pump unit 30 which is driven by the motor unit 20 via the shaft 41 and which discharges oil. The pump device 10 comprises a first oil flow path which connects the inside of the pump unit 30 and the inside of a housing 12, a second oil flow path which is disposed between a stator 50 of the motor unit 20 and a rotor 40, a third oil flow path which is disposed radially outside or radially inside of the stator 50 and the rotor 40, and a fourth flow path through which oil from the second flow path or third flow path flows into the pump unit 30.
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Inventors:
HOMMA KAZUHIRO (JP)
ITO YOSUKE (JP)
ITO YOSUKE (JP)
Application Number:
PCT/JP2017/034496
Publication Date:
April 05, 2018
Filing Date:
September 25, 2017
Export Citation:
Assignee:
NIDEC TOSOK CORP (JP)
International Classes:
F04C15/06; F04C2/10; F04C15/00; H02K7/14; H02K21/14
Foreign References:
| JP2013183603A | 2013-09-12 | |||
| JP2009019522A | 2009-01-29 | |||
| JPH05122901A | 1993-05-18 |
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (JP)
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