Hydraulic transmission with coaxial power-take-off and motor sha

Details Hydraulic transmission with coaxial power-take-off and motor sha Hydraulic transmission with coaxial power-take-off and motor sha

1987-10-19

1988-09-27

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

60488, F16H 3912

Patent

active

047732202

ABSTRACT:
The present invention is a hydraulic transmission comprising a power input shaft, a variable displacement pump connected to and driven by the input shaft, a fixed displacement motor having a motor output shaft, a power take-off shaft, and an intermediate shaft. The intermediate shaft is connected between the power input shaft and the power take-off shaft for transmitting rotational movement directly therebetween. The intermediate shaft also includes first and second bores extending longitudinally therethrough and providing hydraulic connections from the variable displacement pump to the fixed displacement motor so as to permit the pump to drive the motor. Thus, the power input shaft drives the power take-off shaft directly and drives the motor output shaft by virtue of the hydraulic connection between the pump and the motor.

REFERENCES:
patent: 2570843 (1951-10-01), Orshansky
patent: 3664128 (1972-05-01), Heyl
patent: 4686829 (1987-08-01), Thoma et al.

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