Variable speed transmission

Details Variable speed transmission Variable speed transmission

1987-08-25

1990-11-20

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Diverse fluid drives

475 83, F16H 4704

Patent

active

049709143

ABSTRACT:
A variable speed transmission for transmitting power from an output shaft of an engine mounted on a vehicle to driven shafts of the vehicle, wherein a unitary housing means is provided for encasing all of the output shaft of the engine, a variable hydraulic pump for converting the engine power into hydraulic pressure, a crescent hydrualic motor for converting the hydraulic pressure into a driving power, a reduction gear for reducing the driving power, a differential gear for transmitting the reduced driving power to the driven shafts, and said driven shafts. The housing means includes a lower casing portion fixed to a crankcase of the engine, a pump cover portion for encasing the variable hydraulic pump, and an axle housing portion for encasing the crescent hydraulic motor, reduction gear and differential gear, said portions being fixedly connected to each other to form a unitary body.

REFERENCES:
patent: 3029662 (1962-04-01), Hause
patent: 3122944 (1964-03-01), Boehner et al.
patent: 3150543 (1964-09-01), Dangauthier
patent: 3299742 (1967-01-01), General
patent: 3424032 (1969-01-01), Ritter
patent: 3453904 (1969-07-01), Dangauthier
patent: 3489036 (1970-01-01), Cockrell et al.
patent: 3748851 (1973-07-01), Hause
patent: 3805641 (1974-04-01), Hause
patent: 4418585 (1983-12-01), Pierce
patent: 4483408 (1984-11-01), Yazaki
patent: 4633961 (1987-01-01), Niskanen
patent: 4667763 (1987-05-01), Nembach

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