Gear train of automatic transmission for vehicles

Details Gear train of automatic transmission for vehicles Gear train of automatic transmission for vehicles

2008-07-22

2010-11-02

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

Reexamination Certificate

active

07824301

ABSTRACT:
A gear train in an automatic transmission for vehicles may include: a first planetary gear set outputting reduced and same rotational speeds through two pathways by using torque received from an input shaft through one input pathway; a second planetary gear set outputting reversed and same outputs by using the reduced rotational speed from the first planetary gear set, and outputting an increased input when the reduced and same rotational speeds are simultaneous inputted from the first planetary gear set; and a third planetary gear set outputting six forward speeds and one reverse speed by using the outputs from the second planetary gear set and torque from the input shaft.

REFERENCES:
patent: 7416508 (2008-08-01), Carey et al.
patent: 7416509 (2008-08-01), Carey et al.
patent: 2009/0291800 (2009-11-01), Jang et al.
patent: 2009/0312139 (2009-12-01), Jang et al.
patent: 2009/0312140 (2009-12-01), Jang et al.
patent: 2002-013599 (2002-01-01), None

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