Title:
ELECTRIC OIL PUMP
Document Type and Number:
Japanese Patent JP2012207637
Kind Code:
A
Abstract:
To provide an electric oil pump that can suppress heat generated by an electric motor under a low-temperature environment.
The electric oil pump includes: a first pump element 1 and a second pump element 2 that are driven by the electric motor 3; and a clutch 7 that maintains the connection of a torque transmission path extending between the electric motor 3 and the second pump element 2 (first shaft 15 to second shaft 26) when the viscosity of oil is not higher than a predetermined value, and interrupts the connection of the torque transmission path when the viscosity of the oil is higher than the predetermined value.
Inventors:
KOGURE YOSHIHIRO
Application Number:
JP2011075717A
Publication Date:
October 25, 2012
Filing Date:
March 30, 2011
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
F04C15/00; F04C2/10; F04C11/00
Domestic Patent References:
| JPS59150991U | 1984-10-09 |
Attorney, Agent or Firm:
Masamichi Ayata