Automatic transmission

Details Automatic transmission Automatic transmission

1990-02-02

1991-07-09

Diehl, Dwight

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475285, 475289, 475330, F16H 370

Patent

active

050301861

ABSTRACT:
A gear train for changing the rotational speed of an input shaft to transmit the resultant rotation to an output shaft consists of single pinion type first and third planetary gear sets and a double pinion type second planetary gear set. A sun gear of the first planetary gear system is normally or selectively connected to a carrier of the third planetary gear set, the carrier of the third planetary gear set is normally or selectively connected to a sun gear of the second planetary gear set, a carrier of the first planetary gear set is normally or selectively connected to a ring gear of the third planetary gear set, a ring gear of the first planetary gear set is normally or selectively connected to a ring gear of the second planetary gear set, the sun gear of the second planetary gear set is normally or selectively connected to a sun gear of the third planetary gear set, whereby at least five forward speeds and one reverse are permitted to be set.

REFERENCES:
patent: 3811343 (1974-05-01), Mori et al.
patent: 3863524 (1975-02-01), Mori et al.
patent: 4089239 (1978-05-01), Murakami et al.
patent: 4660439 (1987-04-01), Hiraiwa
patent: 4963124 (1990-10-01), Takahashi et al.

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