Multi-speed transmission having two planetary gear sets

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

2009-01-23

2011-11-01

Le, David D (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

With synchronizing clutch or brake

Reexamination Certificate

active

08047958

ABSTRACT:
A transmission is provided having an input member, an output member, two 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, centrifugal clutches, and synchronizers.

REFERENCES:
patent: 5409428 (1995-04-01), Antonov
patent: 5997429 (1999-12-01), Raghavan et al.
patent: 6139459 (2000-10-01), Suzuki
patent: 6422371 (2002-07-01), Naraki et al.
patent: 6976933 (2005-12-01), Haka
patent: 7115061 (2006-10-01), Tiesler et al.
patent: 7137923 (2006-11-01), Tiesler et al.
patent: 7815539 (2010-10-01), Ward et al.

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