Stop valve and control/mixing system for fluids

Details Stop valve and control/mixing system for fluids Stop valve and control/mixing system for fluids

1989-05-23

1991-08-27

Michalsky, Gerald A.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 615, 222 14, F16K 31128

Patent

active

050427750

ABSTRACT:
A stop valve (1) provided with an inlet opening (2) and an outlet opening (3) which both open at one side of a sealing (4), that is adjustable for height in dependence on the pressure in an upper chamber (5) at the other side of the sealing (4). The delivery of such a stop valve is enlarged and the diameter of the passage between the inlet opening and the outlet opening is made controllable by applying pressure puls means (9-1, 9-2) connected to the upper chamber (5), which pressure puls means may generate instantaneous pressure variations in the upper chamber (5). The height of the sealing (4) can be adjusted in steps and is therewith controllable by inferencing the time duration of the pressure pulses delivered by the pressure puls means in the upper chamber.

REFERENCES:
patent: 2541176 (1951-02-01), Rockwell
patent: 2664916 (1954-01-01), Conley
patent: 3904167 (1975-09-01), Touch et al.
patent: 3957244 (1976-05-01), Chauvigne
patent: 3980002 (1976-09-01), Jarman et al.
patent: 4189792 (1980-02-01), Veach
patent: 4673162 (1987-06-01), Lachmann
patent: 4725038 (1988-02-01), Heneker et al.
patent: 4793589 (1988-12-01), Eldredge et al.

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