Control and regulating means for an adjustable hydrostatic unit

Details Control and regulating means for an adjustable hydrostatic unit Control and regulating means for an adjustable hydrostatic unit

1982-08-02

1985-07-30

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60448, 417216, F16D 3302

Patent

active

045313679

ABSTRACT:
A control and regulating arrangement for an adjustable hydrostatic unit is provided in which the regulating device has an auxiliary control constant pump in the feed line of which there is a restrictor, in which case the pressure retained in front of the latter acts on a pressure chamber in which a regulating piston capable of sliding against the force of a spring and which influences the position of a regulating piston connected with the final control element of the hydrostatic unit and capable of sliding in a regulating cylinder is capable of sliding, characterized in that the unit is a hydrostatic motor and the auxiliary control pump is connected to its output shaft.

REFERENCES:
patent: 3054263 (1962-09-01), Budzich et al.
patent: 3650108 (1972-03-01), Isaac
patent: 3986357 (1976-10-01), Hoffmann
patent: 4398869 (1983-08-01), Kirkham et al.

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