Title:
ELECTRIC OIL PUMP
Document Type and Number:
Japanese Patent JP2017122459
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve a problem that, in a conventional electric oil pump, as a position of receiving a hydraulic pressure between rotors is offset from a support portion of the inner rotor and the inner rotor is inclined, friction is increased and collision noise easily occurs between the rotors.SOLUTION: An electric oil pump comprises a drive part and a pump part. The pump part comprises an inner rotor 102 rotated by a pump rotation shaft from the drive part, an outer rotor 103 provided outside of the inner rotor 102, and a pump housing in which the inner rotor 102 and the outer rotor 103 are housed. A bearing part 132 is provided in the pump housing for bearing force, which radially acts on the inner rotor 102 by a fluid pressure, at a position almost coincident with the force in the axial direction of a pump rotation shaft 27.SELECTED DRAWING: Figure 3
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Inventors:
KOBAYASHI YOSHIYUKI
HIGUCHI KOJI
KAJITA KUNIHIRO
TANAKA TAKASHI
HIGUCHI KOJI
KAJITA KUNIHIRO
TANAKA TAKASHI
Application Number:
JP2017039900A
Publication Date:
July 13, 2017
Filing Date:
March 02, 2017
Export Citation:
Assignee:
NIDEC TOSOK CORP
SUBARU CORP
SUBARU CORP
International Classes:
F04C2/10; F04C15/00
Domestic Patent References:
| JP2002202018A | 2002-07-19 | |||
| JP2012026294A | 2012-02-09 | |||
| JP2002155872A | 2002-05-31 | |||
| JP2012241593A | 2012-12-10 | |||
| JPH0465975U | 1992-06-09 |
Attorney, Agent or Firm:
Shiga International Patent Office