Invention Grant
- Patent Title: Planetary transmission, especially dual-clutch planetary transmission
- Patent Title (中): 行星传动,特别是双离合器行星传动
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Application No.: US10593380Application Date: 2005-01-29
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Publication No.: US07682281B2Publication Date: 2010-03-23
- Inventor: Peter Ziemer
- Applicant: Peter Ziemer
- 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: DE102004014081 20040323
- International Application: PCT/EP2005/000902 WO 20050129
- International Announcement: WO2005/098271 WO 20051020
- Main IPC: F16H3/62
- IPC: F16H3/62

Abstract:
A dual-clutch planetary transmission comprising a plurality of planetary gearsets, two frictionally engaged gearshifting element for connecting various power trains to a power flux and a plurality of form-fit gearshifting elements for adjusting various gear ratios in the power trains. The frictionally engaged gearshifting elements and the form-fit gearshifting elements are arranged between the shafts of the planetary gearsets, a housing and a transmission input shaft and a transmission output shaft so that the gear ratio can be changed in a lower gear ratio range, via the frictionally engaged gearshifting elements, without any interruption of tractive force. At least one of the frictionally engaged gearshifting elements is a clutch. The form-fit gearshifting element, the frictionally engaged gearshifting elements and the planetary gearsets are positioned within the housing and can be interlinked so that the form-fit gearshifting elements can be actuated without insertion through rotating parts.
Public/Granted literature
- US20070184931A1 Planetary transmission, especially dual-clutch planetary transmission Public/Granted day:2007-08-09
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