Invention Grant
- Patent Title: Multi-speed transmission
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Application No.: US12108825Application Date: 2008-04-24
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Publication No.: US07931559B2Publication Date: 2011-04-26
- Inventor: Andrew W. Phillips , Clinton E. Carey , Scott H. Wittkopp , James M. Hart
- Applicant: Andrew W. Phillips , Clinton E. Carey , Scott H. Wittkopp , James M. Hart
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F16H3/44
- IPC: F16H3/44

Abstract:
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches.
Public/Granted literature
- US20090054194A1 MULTI-SPEED TRANSMISSION Public/Granted day:2009-02-26
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