Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1984-08-13
1986-06-24
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
Direct response valves
137529, 13762564, 13762566, 251 3001, F16K 31124
Patent
active
045962715
ABSTRACT:
A fluid pressure actuated valve wherein a relatively low powered analog electrical signal accurately controls the position of the output member of a fluid pressure powered actuator which in turn can be used to exert mechanical forces or operate mechanical devices such as fluid pumps, motors or valves. Inlet and outlet passages communicate a pressure chamber to high and low pressures respectively. A control element totally within the chamber so as to have balanced pressure forces thereon and made of a magnetically sensitive material is moved to a fixed position in the chamber proportional to the strength of an externally generated magnetic field. At least one of the passages moves with the output member so as to be opened or closed by the control element relative to the other passage. The output member follows the control element automatically varying the pressure in the chamber to compensate for any variations in the external forces thereon. The output member includes a rod like element having a port in its side for one of the passages and the control element is a sleeve surrounding the rod and can be moved by any externally controlled means including the magnetic field or an external mechanical interconnection, various internal friction reducing arrangements are provided.
REFERENCES:
patent: 1548232 (1925-08-01), Westbrook
patent: 1623431 (1927-04-01), McVoy
patent: 2615466 (1952-10-01), Garde
patent: 2649688 (1953-08-01), Slomer
patent: 2650609 (1953-09-01), Herbst
patent: 2668556 (1954-02-01), Meyer
patent: 2788800 (1957-04-01), Towler
patent: 2813519 (1957-11-01), Persson
patent: 2930360 (1960-03-01), Yando
patent: 2944564 (1960-07-01), Pettey
patent: 2959156 (1960-11-01), Dreptin
patent: 3017897 (1962-01-01), Sequenot
patent: 3131608 (1964-09-01), Yando
patent: 3279743 (1966-10-01), De La Garza
patent: 3495546 (1970-02-01), Brown
patent: 3613717 (1971-10-01), Smith
patent: 3613717 (1971-10-01), Smith
patent: 3709257 (1973-01-01), Faisandier
patent: 3800663 (1974-04-01), Clark
patent: 3842857 (1974-10-01), McCormack
patent: 3902402 (1975-09-01), Walters
patent: 4074699 (1978-02-01), Stampfli
patent: 4106522 (1978-08-01), Manesse
patent: 4212323 (1980-07-01), Qureshi
Fluid Controls, Inc. pp. 20.01 to 21.02 of 1977 Catalog Describing Solenoid Cartridge Valve.
pp. 220-242 and 290-307 of The Treatise Electromagnetic Devices, Rotors (1941).
Fluid Controls-Product Description Sheet #112 for Cartridge Style Flow Regulators.
German Magazine Article Entitled "Proportional Magnetals Stellglieder for Hydroventile.
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