Fluid transmission

Details Fluid transmission Fluid transmission

1978-04-28

1980-03-04

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of...

60486, 417426, 417429, F15B 1309

Patent

active

041910184

ABSTRACT:
A fluid transmission which includes a hydraulic pump combination and a hydraulic motor. The hydraulic pump combination includes a first pump which is a variable volume, variable direction pump and a second pump which is a constant volume, constant direction pump. The combined outputs of the first and second pumps are directed to a hydraulic motor at variable rates and in reversible directions.

REFERENCES:
patent: 1835977 (1931-12-01), Ernst et al.
patent: 2891771 (1959-06-01), Ashton
patent: 2960828 (1960-11-01), Gould
patent: 3037488 (1962-06-01), Barrett
patent: 3241463 (1966-03-01), Barrett
patent: 3734225 (1973-05-01), Kobald et al.
patent: 3983700 (1976-10-01), Barrett
patent: 3990235 (1976-11-01), Bauchet
patent: 4077211 (1978-03-01), Fricke

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