Invention Grant
- Patent Title: Planetary power transmission
- Patent Title (中): 行星动力传动
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Application No.: US12957868Application Date: 2010-12-01
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Publication No.: US08784258B2Publication Date: 2014-07-22
- Inventor: Donald Edward Hoffman , David Allen Janson
- Applicant: Donald Edward Hoffman , David Allen Janson
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman P.C.
- Agent James Dottavio
- Main IPC: F16H3/44
- IPC: F16H3/44

Abstract:
A multiple speed power transmission comprises: an epicyclic gearing assembly comprising first, second, third, and fourth rotating members with linearly related speeds; a double pinion planetary gear set with grounded carrier and input driven sun gear; two brakes; four clutches; and specified interconnections. The brakes and clutches are operated in combinations of two to produce eight forward speed ratios and at least one reverse speed ratio.
Public/Granted literature
- US20120142485A1 Planetary Power Transmission Public/Granted day:2012-06-07
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