| 摘要 |
This variable oil pump is provided with: a pump housing; an oil pump rotor accommodated within the pump housing and rotationally driven; a regulation member accommodated within the pump housing and displaced by a driving force while rotatably holding the oil pump rotor from the outer peripheral side, thereby regulating the amount of oil discharged from the oil pump rotor; and a guide section including a groove provided in the regulation member, the guide section further including a pin which is provided to the pump housing and which engages with the groove. The guide section engages the groove and the pin with each other to thereby guide the displacement of the regulation member relative to the pump housing. At an initial position where the regulation member starts displacement, the inner surface of the groove and the outer surface of the pin are in linear contact with each other in the direction in which the pin extends. |
