Invention Grant
- Patent Title: Dual-piston normally-engaged clutch
- Patent Title (中): 双活塞常啮合离合器
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Application No.: US12754048Application Date: 2010-04-05
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Publication No.: US08210979B2Publication Date: 2012-07-03
- Inventor: Gary L. Jones , Farzad Samie , Chunhao J. Lee , Kumaraswamy V. Hebbale , Andrew L. Bartos , John I. Manole
- Applicant: Gary L. Jones , Farzad Samie , Chunhao J. Lee , Kumaraswamy V. Hebbale , Andrew L. Bartos , John I. Manole
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: F16H31/00
- IPC: F16H31/00 ; F16D19/00

Abstract:
A normally-engaged clutch is provided having a friction-element with a first side and an opposing second side, a first plate configured for pressing against the friction-element on the first side, and a second plate configured for pressing against the friction-element on the second side. The clutch also includes a biasing device configured to apply a first force to the second plate for pressing the second plate against the friction-element to engage the clutch. Additionally, the clutch includes an apply piston for applying a second force to the first plate, and a release piston for applying a third force to the second plate. The clutch is disengaged when the second plate is pushed away from the friction-element by the third force in the absence of the second force, and is engaged when the first plate is pressed against the friction-element by the second force.
Public/Granted literature
- US20110245035A1 DUAL-PISTON NORMALLY-ENGAGED CLUTCH Public/Granted day:2011-10-06
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