Continuously variable speed transmission for a vehicle having a

Details Continuously variable speed transmission for a vehicle having a Continuously variable speed transmission for a vehicle having a

1984-04-27

1986-07-29

Dorner, Kenneth J.

Machine element or mechanism

Elements

Gear casings

74695, 74792, 74788, F16H 3700, F16H 3708

Patent

active

046025251

ABSTRACT:
An automatic transmission for a vehicle including a fluid coupling, a belt type continuously-variable speed transmission (CVT), a planetary gear mechanism and a differential device. The planetary gear mechanism includes a first input shaft and a second input shaft, wherein when the first input shaft is connected to an output shaft of CVT through a clutch, a forward range gear train is formed; whereas when the second input shaft is connected to the output of CVT by the clutch, a reverse range gear train is formed. A low-high speed changeover mechanism including a brake is provided in the planetary gear mechanism, and a first element and a second element of the planetary gear mechanism are selectively held in a stationary position by means of the brake to selectively form the forward range high-speed gear train and forward range low-speed gear train. The clutch and the brake are provided with recesses in one part thereof and are provided with projections in the other part which are fitted into the recesses, and the dimension of the outside diameter thereof is reduced as compared with that of clutches or brakes of the wet multiple-disc type.

REFERENCES:
patent: 2933952 (1960-04-01), Schon
patent: 3203277 (1965-08-01), General
patent: 3375734 (1968-04-01), Lemons
patent: 3479908 (1969-11-01), Kress et al.
patent: 4060012 (1977-11-01), Giacosa
patent: 4392394 (1983-07-01), Hofbauer et al.
patent: 4408746 (1983-10-01), Marsch et al.
patent: 4502353 (1985-03-01), Beaudoin
patent: 4548099 (1985-10-01), Wayman et al.
patent: 4550629 (1985-11-01), Kawamoto

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