Multi-speed transmission

Details Multi-speed transmission Multi-speed transmission

2008-05-21

2011-11-15

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

Reexamination Certificate

active

08057349

ABSTRACT:
A transmission is provided having an input member, an output member, four 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 are clutches and brakes.

REFERENCES:
patent: 6176803 (2001-01-01), Meyer et al.
patent: 6984187 (2006-01-01), Biermann
patent: 6991578 (2006-01-01), Ziemer
patent: 7011597 (2006-03-01), Haka
patent: 7018319 (2006-03-01), Ziemer
patent: 7651430 (2010-01-01), Kamm et al.

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