Automated gear transmission

Details Automated gear transmission Automated gear transmission

2005-11-29

2005-11-29

Lewis, Tisha (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Nonplanetary gearing combined with planetary

C475S343000, C074S331000

Reexamination Certificate

active

06969335

ABSTRACT:
A multiple speed transmission includes first and second concentric input shafts, an output shaft, an auxiliary shaft, a first clutch for driveably connecting and disconnecting the first input shaft, and a second clutch for driveably connecting and disconnecting the second input shaft. First pairs of mutually engaged gears include a first member supported on the first input shaft, and a second member supported on the output shaft. Second pairs of mutually engaged gears includes a first member supported on the second input shaft, and second member supported on the output shaft. A gear wheel, supported on the auxiliary shaft, engages a gear of a second pair on the second input shaft. A planetary gearset includes a ring gear driveably engaged with a member of the first pair on the first input shaft. The carrier of the gearset is held against rotation in reverse drive and released in forward drive.

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