Apparatus and method for valve control

Details Apparatus and method for valve control Apparatus and method for valve control

1999-05-14

2000-05-16

Kaufman, Joseph A.

Valves and valve actuation

Fluid actuated or retarded

Fluid link or column actuator

239 91, F16K 3112

Patent

active

060625333

ABSTRACT:
A wall-controllable primary drive, for example a piezo actuator, guided in a first bore transfers its stroke motion-commutated onto a secondary-side lifter element guided in a second bore, transmitting said stroke by a piston-hydraulic stroke transmission on the basis of a hydraulic chamber. The pressure in a valve chamber is controlled via secondary-side lifter element.

REFERENCES:
patent: 2015887 (1935-10-01), Eek
patent: 2521224 (1950-09-01), Kammer
patent: 2573231 (1951-10-01), Teague, Jr.
patent: 2890657 (1959-06-01), May et al.
patent: 4813601 (1989-03-01), Schwerdt et al.
patent: 5934560 (1999-08-01), Barry

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