Multi-speed gearbox

Details Multi-speed gearbox Multi-speed gearbox

2007-04-10

2007-04-10

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

Reexamination Certificate

active

10517237

ABSTRACT:
The multi-speed transmission comprises one input shaft and one output shaft located in one housing, three one-spider planetary gear sets, seven rotatable shafts as well as six shifting elements, the selective engagement of which implements seven forward gears and one reverse gear. The input drive results by one shaft connected with the sun gear of the first planetary gear set, the output drive results via one shaft connected with the spider of the third planetary gear set, one shaft is permanently connected with the sun gear of the third planetary gear, one shaft is connected with the ring gear of the first planetary gear set and the ring gear of the second planetary gear set, one shaft is connected with one element of the second planetary gear set and the ring gear of the third planetary gear set, one shaft is permanently connected with one other element of the second planetary gear set, one shaft is connected with the spider of the first planetary gear set.

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