Invention Grant
- Patent Title: Multi-ratio transmission
- Patent Title (中): 多比率传输
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Application No.: US13384630Application Date: 2010-08-19
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Publication No.: US08419587B2Publication Date: 2013-04-16
- Inventor: Gerhard Gumpoltsberger , Christian Sibla , Stefan Beck , Josef Haupt , Gert Bauknecht , Peter Ziemer
- Applicant: Gerhard Gumpoltsberger , Christian Sibla , Stefan Beck , Josef Haupt , Gert Bauknecht , Peter Ziemer
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, PLLC
- Priority: DE102009028708 20090820
- International Application: PCT/EP2010/062128 WO 20100819
- International Announcement: WO2011/020896 WO 20110224
- Main IPC: F16H3/62
- IPC: F16H3/62

Abstract:
A multi step transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of gearset (P1) couples shaft (4) which couples housing (G) via brake (04). The carrier of gearset (P1) couples shaft (3), which couples housing (G) via brake (03), drive shaft (1) via clutch (13), and shaft (6) via clutch (36). Shaft (6) couples the ring gear of gearset (P2) and the sun gear of set (P4), and, via clutch (68), shaft (8), which couples the sun gear of gearset (P3). Shaft (1) couples the sun gear of gearset (P2) and the carrier of set (P3). Shaft (7) couples the ring gear of set (P1) and the carrier of gearset (P2). The ring gear of set (P4) couples shaft (5) which couples housing (G) via brake (05). Output shaft (2) couples the ring gear and carrier of gearsets (P3, P4) respectively.
Public/Granted literature
- US20120135834A1 MULTI-RATIO TRANSMISSION Public/Granted day:2012-05-31
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