Power train of automatic transmission

Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked

Reexamination Certificate

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Reexamination Certificate

active

07601090

ABSTRACT:
A power train for an automatic transmission provides seven forward speeds and three reverse speeds. The powertrain includes an input shaft; an output gear; a transmission case; a speed shift unit; an output unit and a series of brakes and clutches for sequentially stopping and connecting input and output members of the powertrain for realizing the respective speeds.

REFERENCES:
patent: 7311635 (2007-12-01), Klemen
patent: 2008/0039267 (2008-02-01), Shim
patent: 2008/0146392 (2008-06-01), Shim

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