Electrohydraulic control arrangement for hydrostatic machine

Details Electrohydraulic control arrangement for hydrostatic machine Electrohydraulic control arrangement for hydrostatic machine

1982-08-04

1984-10-23

Look, Edward K.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Cylinders parallel to rotation axis

60389, 60444, 417222, F04B 130, F15B 910, F15B 1316

Patent

active

044781369

ABSTRACT:
An electrohydraulic control arrangement for a hydrostatic machine with displacing element having a stroke determined by a control member, which has at least one pressure-actuated regulating piston arranged to adjust the control member, and a valve slider through which a pressure medium acts upon the regulating piston and which is withdrawable to a neutral position in response to adjusting the machine by a feedback signal coming from the control member in correspondence with an electrical input signal, wherein a constant pressure acts upon one side of the valve slider and a variable pressure depending upon a position of the control member acts upon the other side of the valve slider.

REFERENCES:
patent: 2974639 (1961-03-01), O'Connor et al.
patent: 2993477 (1961-07-01), Panissidi
patent: 3009447 (1961-11-01), Lloyd
patent: 3875849 (1975-04-01), Patel
patent: 4375942 (1983-03-01), Olson

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