Unit for controlling a plurality of hydraulic actuators

Details Unit for controlling a plurality of hydraulic actuators Unit for controlling a plurality of hydraulic actuators

1993-07-27

1995-05-16

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

91446, 91512, 91517, F15B 1308

Patent

active

054151996

ABSTRACT:
Hydraulic actuators are fed by a single flow-rate generator, each being connected to it through a proportional directional valve, the unit including a device for detecting the highest of the pressures prevailing upstream of the throttle provided by a controlled spool in the respective proportional directional valves, and, in each of these an actuation device to cause the compensating spool to respond to the highest of the upstream pressures thus detected.

REFERENCES:
patent: 3987622 (1976-10-01), Johnson
patent: 4617854 (1986-10-01), Kropp
patent: 4736770 (1988-04-01), Rousset et al.
patent: 4981159 (1991-01-01), Christensen et al.
patent: 5152140 (1992-10-01), Hirata et al.
patent: 5222426 (1993-06-01), Marcon et al.
patent: 5251444 (1993-10-01), Ochiai et al.

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