Multi-speed transmission having three planetary gear sets

Details Multi-speed transmission having three planetary gear sets Multi-speed transmission having three planetary gear sets

2008-10-23

2011-10-11

Le, David D (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S275000

Reexamination Certificate

active

08033950

ABSTRACT:
A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.

REFERENCES:
patent: 6645117 (2003-11-01), Usoro et al.
patent: 7056258 (2006-06-01), Bucknor et al.
patent: 7211021 (2007-05-01), Gumpoltsberger
patent: 7591752 (2009-09-01), Gumpoltsberger
patent: 2003/0203784 (2003-10-01), Usoro et al.
patent: 2007/0004551 (2007-01-01), Andres
patent: 2007/0010369 (2007-01-01), Bucknor et al.

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