Automatic transmission for an automotive vehicle

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing

Patent

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Details

74763, 74765, F16H 4708, F16H 5710

Patent

active

047488697

ABSTRACT:
A transmission for an automotive vehicle, includes an input shaft, an ouput shaft, a coupling device having an input portion thereof connected to the input shaft, and a gear mechanism for transmitting the power from the input shaft to the output shaft in such a way that three forward and one reverse drives can be obtained. The gear mechanism including first, second, third and fourth rotatable members. The fourth rotatable member is connected to the output shaft. In addition, first and second clutches are provided between the gear means and the coupling device. The first clutch is connected to the first rotatable member of the gear mechanism. The second clutch is connected to the second rotatable member of the gear mechanism. First brake selectively brakes the third rotatable member of the gear mechanism. Second brake selectively brakes the second rotatable member of the gear mechanism. Further, the transmission includes a third clutch connected to the input shaft, and a planetary gear set having fifth, sixth and seventh rotatable members. The sixth and seventh rotatable members are connected to the gear mechanism. The fifth rotatable member is connected to the third clutch.

REFERENCES:
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patent: 2894415 (1959-07-01), Miller
patent: 3024668 (1962-03-01), Kronogard et al.
patent: 3486398 (1969-12-01), Waclawek
patent: 3620100 (1971-11-01), Chana
patent: 3835732 (1974-09-01), Mori et al.
patent: 3863524 (1975-02-01), Mori et al.
patent: 4223571 (1980-09-01), Quemerais et al.
patent: 4228697 (1980-10-01), Miller
patent: 4282773 (1981-08-01), Ohtsuka
patent: 4369672 (1983-01-01), Ohtsuka

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