Multi-speed transmission

Details Multi-speed transmission Multi-speed transmission

2007-02-09

2009-06-23

Lewis, Tisha D (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S330000

Reexamination Certificate

active

07549943

ABSTRACT:
A multi-speed transmission with reverse and forward gears has input and output shafts, planetary gearsets, six shafts and six shifting elements. The input shaft couples the sun gear of gearset (P2) and detachably couples, via clutches (13, 14), respective shafts (3, 4). Shaft (3) couples the carrier of gearset (P1), and detachably couples, via brake (03), the housing and, via clutch (36), shaft (6). Shaft (6) couples the ring gear of gearset (P2). Shaft (4) couples the sun gear of gearset (P1) and detachably couples, via brake (04), the housing. Shaft (5) couples the ring gear and the carrier of respective gearsets (P1, P3). The output shaft couples the carrier and the ring gear of respective gearsets (P2, P3). The sun gear of gearset (P3) is rotationally fixed to the housing. Either shaft (5) is connectable to shaft (6) or shaft (3), or shaft (3) is connectable to shaft (4).

REFERENCES:
patent: 4395925 (1983-08-01), Gaus
patent: 5106352 (1992-04-01), Lepelletier
patent: 5250011 (1993-10-01), Pierce
patent: 6139463 (2000-10-01), Kasuya et al.
patent: 6558287 (2003-05-01), Hayabuchi et al.
patent: 6572507 (2003-06-01), Korkmaz et al.
patent: 6634980 (2003-10-01), Ziemer
patent: 6712731 (2004-03-01), Raghavan et al.
patent: 6743146 (2004-06-01), Usoro et al.
patent: 6780138 (2004-08-01), Raghavan et al.
patent: 6860831 (2005-03-01), Ziemer
patent: 6932735 (2005-08-01), Kao et al.
patent: 7018319 (2006-03-01), Ziemer
patent: 7052432 (2006-05-01), Park
patent: 7507179 (2009-03-01), Gumpoltsberger
patent: 29 36 969 (1981-04-01), None
patent: 199 12 480 (2000-09-01), None
patent: 199 49 507 (2001-04-01), None
patent: 101 15 983 (2002-10-01), None
patent: 101 15 987 (2002-10-01), None
patent: 102 13 820 (2002-10-01), None
patent: 0 434 525 (1991-06-01), None

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