Multi-speed powershift transmission

Details Multi-speed powershift transmission Multi-speed powershift transmission

1980-03-26

1982-08-24

Braun, Leslie

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74760, 74767, 74768, 74769, F16H 5710

Patent

active

043454909

ABSTRACT:
This invention relates to a multi-speed powershift transmission which is particularly useful in agricultural and industrial type vehicles. The transmission comprises three main planetary sections and two drive clutches. In addition to the two drive clutches, the three planetary sections also contain additional clutches and brakes which act in combination to provide a wide range of closely spaced speed increments.

REFERENCES:
patent: 2220174 (1940-11-01), Ravigneaux
patent: 2546378 (1951-03-01), Winther
patent: 2821869 (1958-02-01), Kelbel
patent: 2844975 (1958-07-01), Kelbel et al.
patent: 2868037 (1959-01-01), Hindmarch
patent: 3274858 (1966-09-01), Meyer et al.
patent: 3298252 (1967-01-01), Harris et al.
patent: 3823622 (1974-07-01), Mori et al.
patent: 3877320 (1975-04-01), Iijima
patent: 3971268 (1976-07-01), Murakami et al.
patent: 4089238 (1978-05-01), Forster et al.

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