Invention Grant
- Patent Title: Multi-speed transmission
- Patent Title (中): 多速传输
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Application No.: US13709674Application Date: 2012-12-10
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Publication No.: US08523728B2Publication Date: 2013-09-03
- Inventor: Michael Kamm , Gabor Diosi , Josef Haupt , Gerhard Gumpoltsberger , Peter Ziemer , Martin Brehmer
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, PLLC
- Priority: DE102006031234 20060706
- Main IPC: F16H3/62
- IPC: F16H3/62

Abstract:
The 8-speed transmission which comprises an input shaft (AN), an output shaft (AB), four planetary gearsets (RS1, RS2, RS3, RS4), eight rotary shafts (1, 2, 3, 4, 5, 6, 7, 8), and five shifting elements (A, B, C, D, E). The input shaft is directly connected to the fourth planetary gear set while the output shaft is directly connected to the third planetary gear. A third shaft directly connects one element of the first planetary gear set with one element of the fourth planetary gear set. A fifth shaft directly connects one element of the second planetary gear set with one element of the third planetary gear set. A sixth shaft directly connects one element of the first planetary gear set with one element of the third planetary gear set. A seventh shaft directly connects one element of the fourth planetary gear set with one element of the fifth shifting element.
Public/Granted literature
- US20130123060A1 MULTI-SPEED TRANSMISSION Public/Granted day:2013-05-16
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