Six-speed powertrain of an automatic transmission

Details Six-speed powertrain of an automatic transmission Six-speed powertrain of an automatic transmission

2008-05-27

2008-05-27

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S288000, C475S325000

Reexamination Certificate

active

07377873

ABSTRACT:
Six forward speeds and one reverse speed may be realized with minimized length and weight of the transmission by employing two single pinion planetary gear sets and a double pinion planetary gear set. One planetary gear of the double pinion planetary gear set is interconnected with an adjacent second planetary gear of the second single pinion planetary gear set by a common planet carrier such that they may rotate independently, and at the same time, at least two ring gears are integrated so as to enhance strength in the axial direction.

REFERENCES:
patent: 3996817 (1976-12-01), Winzeler
patent: 5133697 (1992-07-01), Hattori
patent: 5954613 (1999-09-01), Park
patent: 6626789 (2003-09-01), Raghavan et al.
patent: 7044881 (2006-05-01), Tabata et al.
patent: 7094174 (2006-08-01), Miyazaki et al.
patent: 7115060 (2006-10-01), Gumpoltsberger
patent: 0 705 995 (1996-04-01), None

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