Invention Grant
- Patent Title: Multi-speed transmission
- Patent Title (中): 多速传输
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Application No.: US12538942Application Date: 2009-08-11
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Publication No.: US08088032B2Publication Date: 2012-01-03
- Inventor: Gerhard Gumpoltsberger , Martin Brehmer , Peter Ziemer , Peter Tiesler , Gabor Diosi , Josef Haupt
- Applicant: Gerhard Gumpoltsberger , Martin Brehmer , Peter Ziemer , Peter Tiesler , Gabor Diosi , Josef Haupt
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, P.L.L.C.
- Priority: DE102008041207 20080813
- Main IPC: F16H3/62
- IPC: F16H3/62

Abstract:
The multi-step transmission including four gear sets, eight shafts, and six shifting elements. The sun gear of gearset (P1) communicates, via shaft (8) and clutch (48), with shaft (4), which communicates, via clutch (14), with shaft (1), that couples the sun gear of the gearset (P4), and communicates, via brake (04), with a housing. The ring gear of gearset (P1) couples shaft (1), and communicates, via clutch (17), with shaft (7), which couples the carriers of the gearsets (P3, P2). The carrier of gearset (P1) is connected, via shaft (6), to a component, which connects the ring gear of gearset (P4) to the sun gear of gearset (P3). The carrier of gearset (P4) communicates, via shaft(3) and brake (03), with the housing. The sun gear of gearset (P2) communicates, via shaft (5) and brake (05), with the housing. The output shaft couples the ring gears of gearsets (P3, P2).
Public/Granted literature
- US20100041508A1 MULTI-SPEED TRANSMISSION Public/Granted day:2010-02-18
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