| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil pump device, in which a pump and an electric motor can be easily incorporated within a pump incorporating space of a pump housing. <P>SOLUTION: In the pump incorporating space 13 of the pump housing, a drive shaft 2 connected to an engine, a pump 40 disposed in the outer periphery of the drive shaft 2, and a motor stator and a motor rotor disposed in the outer periphery of the pump 40 and constituting an electric motor 30 are incorporated. A planetary gear mechanism 51 is arranged among the drive shaft 2, the pump 40, and the motor rotor 33, and the drive shaft 2, pump 40, and motor rotor 33 are connected to one another. Between the pump 40 and the drive shaft 2, a one-way clutch mechanism 45 is disposed to transmit torque generated by one-way rotation of the drive shaft 2 to the pump 40 while shutting off torque transmission in an opposite direction. The pump 40 receives at least one of torque transmitted from the drive shaft 2 via the one-way clutch mechanism 45 and torque transmitted from the electric motor 30 via the planetary gear mechanism 51 to be driven. <P>COPYRIGHT: (C)2013,JPO&INPIT |
