| 摘要 |
<P>PROBLEM TO BE SOLVED: To expand operable ranges of the number of revolutions and torque by easily and properly making variable an induction voltage constant while suppressing the complication of a motor, and to improve drive efficiency, and to expand an operable range at high efficiency. <P>SOLUTION: An oil pump 31 for feeding oil pressure to a phase control mechanism 15 that changes a relative phase between an internal peripheral side rotor and an external peripheral side rotor is made operable by the motor 10 as a drive source by making either of the internal peripheral side rotor and the external peripheral side rotor of the motor 10 turn around a rotating shaft. The rotating shaft of the oil pump 31 and the rotating shaft O of the rotor 13 of the motor 10 are coaxially connected with each other. A changeover valve 35 whose open-valve state is controlled by a control device 34 is arranged in an oil passage 33 that feeds oil pumped up from an oil pan 32 by the oil pump 31 to the phase control mechanism 15. <P>COPYRIGHT: (C)2007,JPO&INPIT |
