Invention Grant
- Patent Title: Direct control variable displacement vane pump
- Patent Title (中): 直接控制可变排量叶片泵
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Application No.: US12575756Application Date: 2009-10-08
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Publication No.: US08597003B2Publication Date: 2013-12-03
- Inventor: Peter Krug , Vasilios B. Liavas , Gurvinder Bhogal
- Applicant: Peter Krug , Vasilios B. Liavas , Gurvinder Bhogal
- Applicant Address: CA Concord
- Assignee: Magna Powertrain Inc.
- Current Assignee: Magna Powertrain Inc.
- Current Assignee Address: CA Concord
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: F03C4/00
- IPC: F03C4/00 ; F04C2/00 ; F04C14/18

Abstract:
A lubrication system for a power transmission device includes a variable displacement vane pump including a moveable control ring for varying the displacement of the pump. A linear actuator directly acts on the control ring for moving the control ring between maximum and minimum pump displacement positions. The linear actuator includes an electric motor for rotating a drive member. The drive member engages a driven actuator shaft to cause linear translation of the actuator shaft in response to rotation of the drive member. A control system includes a controller for signaling the actuator to extend or retract the actuator shaft to vary the pump displacement.
Public/Granted literature
- US20100086424A1 DIRECT CONTROL VARIABLE DISPLACEMENT VANE PUMP Public/Granted day:2010-04-08
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