Powertrain of an automatic transmission

Details Powertrain of an automatic transmission Powertrain of an automatic transmission

2009-06-02

2011-10-25

Holmes, Justin (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

Reexamination Certificate

active

08043191

ABSTRACT:
A powertrain of an automatic transmission includes a first planetary gear set having first, second, and third operating members, a second planetary gear set having fourth, fifth, and sixth operating members, and a third planetary gear set having seventh, eighth, and ninth operating members, the first operating member being always stationary, the seventh and eighth operating members being selectively stopped, the second and sixth operating members being fixedly interconnected, the fifth and ninth operating members being fixedly interconnected, the fourth and seventh operating members being selectively interconnected, the sixth and seventh operating members being selectively interconnected, the third and eighth operating members being selectively interconnected, wherein an input shaft is fixedly connected to the third operating member and selectively connected to the seventh operating member, and an output shaft is fixedly connected to the ninth operating member.

REFERENCES:
patent: 7118508 (2006-10-01), Usoro et al.
patent: 7645208 (2010-01-01), Kamm et al.
patent: 7704180 (2010-04-01), Wittkopp et al.
patent: 2003/0162628 (2003-08-01), Raghavan et al.
patent: 2006/0270516 (2006-11-01), Klemen
patent: 2008/0305911 (2008-12-01), Moorman et al.
patent: 2005-106260 (2005-04-01), None

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