Hydraulic driving device

Details Hydraulic driving device Hydraulic driving device

1988-06-20

1990-02-20

Chambers, A. Michael

Motors: expansible chamber type

Independently operated timer, delay, pattern or cyclic control

91363R, F15B 2102

Patent

active

049016245

ABSTRACT:
A hydraulic driving device includes a working cylinder for moving a machine component, and an electro-hydraulic servo system. The servo system includes a servo-valve, a position-error control, a circuit for emulating speed and acceleration of the working cylinder, and a regulator for weighting the ascertained position error according to the emulated speed and acceleration, and generating a setting signal for the servo valve.

REFERENCES:
patent: 3958492 (1976-05-01), Curless
patent: 4164167 (1979-08-01), Imai et al.
patent: 4218956 (1980-08-01), Uno et al.
patent: 4450753 (1984-05-01), Basrai et al.

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