Automatic transmission for vehicles in general

Details Automatic transmission for vehicles in general Automatic transmission for vehicles in general

1988-10-28

1990-05-29

Braun, Leslie A.

Machine element or mechanism

Gearing

In series plural interchangeably locked nonplanetary units

192 481, F16H 302, F16D 2100

Patent

active

049285556

ABSTRACT:
In order to provide an automatic transmission for vehicles, having a wide range of transmission ratio, a first transmission unit is provided, with a transmission ratio variable with continuity, connected on its inlet side with a driving shaft, and at least a second transmission unit and a third transmission unit are provided, each with a fixed transmsision ratio, which is different from each other, with each of them being connected, on its inlet side, with said first transmission unit, and on its outlet side, with a driven shaft of the vehicle, which they supply with motion, alternatively to each other; the second transmission unit and the third transmission unit are connected with the first transmission unit by means of two respective automatic couplings, which engage at different actuation speeds.

REFERENCES:
patent: 2572528 (1947-11-01), Selander
patent: 2733613 (1956-02-01), Kreis
patent: 3372601 (1968-03-01), Orcutt et al.
patent: 3442346 (1969-05-01), Winter et al.
patent: 4457185 (1984-07-01), Yoshida et al.
patent: 4660438 (1987-04-01), Tatara et al.
patent: 4674359 (1987-06-01), Hattori
patent: 4787268 (1988-11-01), Falzoni

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