Method for controlling a hydraulic drive and configuration for c

Details Method for controlling a hydraulic drive and configuration for c Method for controlling a hydraulic drive and configuration for c

1993-08-20

1995-05-30

Lopez, F. Daniel

Motors: expansible chamber type

Differential

Opposing pressure applied by bypassing

91442, 91451, F15B 1517

Patent

active

054192366

ABSTRACT:
In a method and a configuration for operating a hydraulic drive, a 3/2-port directional seat valve, which is driven by solenoid coils, controls an application of high-pressure fluid through a working piston of a piston/cylinder system. In order to increase the circuit-breaking capacity of the working piston, a hydraulic booster valve which is driven hydraulically by the 3/2-port directional seat valve is used for clearing a direct path from the piston/cylinder system to the low-pressure reservoir during switching-off.

REFERENCES:
patent: 3969985 (1976-07-01), Grieger et al.
patent: 4226166 (1980-10-01), Frank

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