OIL SUPPLY DEVICE AND METHOD OF CONTROLLING ELECTRIC OIL PUMP |
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| 申请号 | US15576708 | 申请日 | 2016-05-12 | 公开(公告)号 | US20180135624A1 | 公开(公告)日 | 2018-05-17 |
| 申请人 | MIKUNI CORPORATION; | 发明人 | Kan YASHIMA; Takashi DOI; | ||||
| 摘要 | The objective of the present invention provides an oil supply device in which a negative pressure in a pump chamber is reduced or eliminated when an electric oil pump is shut down, thereby preventing air from entering the pump chamber and allowing oil to be supplied or recirculated smoothly. This oil supply device includes: an electric oil pump in which a rotary volumetric change pump provided with an inner rotor and an outer rotor is caused to operate by means of a motor; and an electric oil pump controller which controls the motor in such a way that, when the electric oil pump is to be shut down, the rotary volumetric change pump is caused to temporarily stop, after which the rotary volumetric change pump is caused to rotate by a predetermined angle in the opposite direction to the direction of rotation during oil supply, and is then shut down. | ||||||
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