Multiple planetary gear system for multi-speed automatic transmi

Details Multiple planetary gear system for multi-speed automatic transmi Multiple planetary gear system for multi-speed automatic transmi

1992-03-10

1993-07-13

Bonck, Rodney H.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475290, 475319, 475325, F16H 362, F16H 5710

Patent

active

052268624

ABSTRACT:
An improved planetary gear type transmission mechanism is provided which is capable of realizing a plurality of desired speed ratios in a wide range, for example in an automatic transmission, and which maintains gear ratios of all of a plurality of planetary gear sets in an available range. The transmission mechanism includes a double pinion type planetary gear set.

REFERENCES:
patent: 3812739 (1974-05-01), Mori et al.
patent: 3996817 (1976-12-01), Winzeler
patent: 4263822 (1981-04-01), Harmon
patent: 5057063 (1991-10-01), Asada et al.
patent: 5069656 (1991-12-01), Sherman
patent: 5133697 (1992-07-01), Hattori

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