Continuously variable hydrostatic transmission

Details Continuously variable hydrostatic transmission Continuously variable hydrostatic transmission

1995-04-07

1997-10-21

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

60492, 60444, 91506, F16D 3900

Patent

active

056784058

ABSTRACT:
A continuously variable hydrostatic transmission includes an input shaft connected to drive a hydraulic pump unit, a grounded hydraulic motor unit, and an output shaft. A wedge-shaped swashplate is pivotally mounted to the output shaft in driving connection to receive output torque resulting from the exchange of pressurized hydraulic fluid between the pump and motor units through ports in the swashplate. A hydraulically actuated ratio controller is pivotally linked to the swashplate to selectively adjust the swashplate angle relative to the output shaft axis and thereby change transmission ratio.

REFERENCES:
patent: 3204411 (1965-09-01), Stockton
patent: 4493189 (1985-01-01), Slater
patent: 4896585 (1990-01-01), Forster
patent: 5423183 (1995-06-01), Folsom

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