Automatic transmission

Details Automatic transmission Automatic transmission

2006-05-16

2006-05-16

Ho, Ha (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S275000, C475S326000

Reexamination Certificate

active

07044881

ABSTRACT:
An automatic transmission includes a first rotating element provided by a sun gear of a second planetary gear set, a second rotating element provided by coupling carriers of the second planetary gear set and a third planetary gear set to each other, a third rotating element provided by coupling ring gears of the second and third planetary gear sets to each other, and a fourth rotating element provided by a sun gear of the third planetary gear set. The second and third planetary gear sets are combined with a first planetary gear set so that the automatic transmission can provide seven forward gear stages by changing a combination of two engaging elements, such as clutches and brakes, for coupling or stopping the corresponding rotating elements.

REFERENCES:
patent: 6267703 (2001-07-01), Park
patent: 6425841 (2002-07-01), Haka
patent: 6634980 (2003-10-01), Ziemer
patent: 403074666 (1991-03-01), None
patent: 8-105496 (1996-04-01), None
patent: 2956173 (1999-07-01), None
patent: 2000-199549 (2000-07-01), None
patent: 2000-266138 (2000-09-01), None
patent: 2001-82555 (2001-03-01), None
patent: 2001-182785 (2001-07-01), None
patent: WO 01/04513 (2001-01-01), None
patent: WO 01/27496 (2001-04-01), None
patent: WO 02/079670 (2002-10-01), None
patent: 2079671 (2002-10-01), None

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