| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil pump device capable of being downsized by simplifying a switching mechanism of a driving source.SOLUTION: An oil pump device 100 includes a final gear 31 (reduction gear part 30) transferring driving force of an engine 90 to an oil pump 10 including an inner rotor 12 and an outer rotor 13, a motor 20 separately provided from the final gear 31 and rotationally driving the oil pump 10, and a single one-way clutch 40 arranged between the final gear 31 and the motor 20 and connected to both of the final gear 31 and the motor 20. The oil pump device 100 is configured such that, when a rotational speed R2 of the motor 20 transferred to the one-way clutch 40 is larger than a rotational speed R1 of the final gear 31 transferred to the one-way clutch 40, the one-way clutch 40 blocks driving force by the final gear 31 (reduction gear part 30). |
