Invention Grant
- Patent Title: Multi-stage gearbox
- Patent Title (中): 多级变速箱
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Application No.: US12919350Application Date: 2009-02-04
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Publication No.: US08398522B2Publication Date: 2013-03-19
- Inventor: Gert Bauknecht , Gerhard Gumpoltsberger , Peter Ziemer , Mark Mohr
- Applicant: Gert Bauknecht , Gerhard Gumpoltsberger , Peter Ziemer , Mark Mohr
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, PLLC
- Priority: DE102008000429 20080228
- International Application: PCT/EP2009/051228 WO 20090204
- International Announcement: WO2009/106409 WO 20090903
- Main IPC: F16H3/62
- IPC: F16H3/62
Abstract:
A multi-stage transmission comprising planetary gearsets (P1, P2, P3, P4), shafts, and shift elements. Gearsets (P1, P2) form a front -mounted gear gearset and gearsets (P3, P4) form a main gearset. The carriers of gearsets (P1, P2) are coupled via shaft (4) which couples a main gearset element. The ring gear of gearset (P1) couples the sun gear of gearset (P2) via shaft (8) that couples drive shaft (1) via clutch (18). The sun gear of gearset (P1) couples housing (G) by shaft (3) via brake (03), and shaft (1) via clutch (13). The ring gear of gearset (P2) couples housing (G) by shaft (5) via brake (05). Shaft (7) couples main gearset element, and, via brake (07), housing (G). Shaft (6) couples another main gearset element and, via clutch (16), shaft (1). The output shaft couples a further main gearset element.
Public/Granted literature
- US20110009229A1 MULTI-STAGE GEARBOX Public/Granted day:2011-01-13
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