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公开(公告)号：US20200263690A1
公开(公告)日：2020-08-20
申请号：US16645481
申请日：2018-09-07
IPC分类号： F04C18/344 , F01C21/08 , F04C25/02 , F04C29/02
摘要： The invention provides an sliding contact single vane rotary vacuum pump in which an oil supply passage is placed in the centre of the rotating vane through which a lubricating oil flows, which provides oil distribution in the pump chamber with enhanced suction pressure of 39%; and the torque exertion by 2.86-7.63%, this helps in reducing the torque of the pump during maximum vacuum condition and results in reduction of the power consumption of the vacuum pump which in-turn decreases the net load on the automotive engine, thus reduces the peak torque, the pump internal chamber pressure and also results better vacuum suction performance.
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公开(公告)号：US20180209271A1
公开(公告)日：2018-07-26
申请号：US15327481
申请日：2015-07-19
CPC分类号： F01C21/0845 , B60T17/02 , F01C21/0881 , F04C18/3441 , F04C25/02 , F04C28/06 , F04C29/021
摘要： A vacuum pump for automobiles used for brake application is provided wherein a method of reducing power consumption and running torque in a vacuum pump of a motor vehicle is explained. The present invention also provides a vacuum pump for automobiles comprising an actuator, a new vane locking assembly, a new vane and rotor assembly, a new non return valve assembly, the controlled oil supply means and a reed stopper assembly that reduces power loss and unnecessary frictional forces and to maintain a controlled oil supply to the vacuum pump.
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