Seven-speed powertrain of an automatic transmission for a...

Details Seven-speed powertrain of an automatic transmission for a... Seven-speed powertrain of an automatic transmission for a...

2007-07-03

2007-07-03

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

11221277

ABSTRACT:
A seven-speed powertrain for an automatic transmission includes first, second and third single pinion planetary gear sets, each having a first gear, a ring gear, and a planet carrier as an operating member thereof. The first, the second, and the third single pinion planetary gear sets are arranged on an input shaft and combined by a plurality of frictional elements including first, second, and third brakes, and first, second, and third clutches.

REFERENCES:
patent: 7131925 (2006-11-01), Shim
patent: 7192377 (2007-03-01), Shim
patent: 2005/0202925 (2005-09-01), Shim
patent: 102 21 095 (2004-07-01), None
patent: 102004048696 (2005-05-01), None
patent: 102004055289 (2005-08-01), None

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