Multi-speed manual transmission with two simple planetary gearse

Details Multi-speed manual transmission with two simple planetary gearse Multi-speed manual transmission with two simple planetary gearse

1995-06-01

1997-01-14

Marmor, Charles A.

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Plural power paths to planetary gearing

475207, 475219, 74329, F16H 3708

Patent

active

055933580

ABSTRACT:
A six speed manual transmission having a double planetary gearset consisting of two simple planetary gearsets for use in a motor vehicle. The transmission includes an input shaft, a mainshaft rotatably connected by constant-mesh gearwheels to the input shaft, and an output shaft. This assembly provides two dissimilar fixed speed ratios, with a first power path using the first fixed speed ratio and a second power path using the second fixed speed ratio. The first power path includes a first sliding synchronizer clutch, a second sliding synchronizer clutch, and a first planetary gearset. The second power path includes a third sliding synchronizer clutch and a second planetary gearset. In addition, the first and second power paths share a common brake. The transmission provides a plurality of forward speeds, a braked neutral and a reverse drive. The transmission may be applied in either front wheel or rear wheel drive vehicles.

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