Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1987-08-31
1988-06-28
Rosenthal, Arnold
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
1376275, G05D 1610
Patent
active
047532637
ABSTRACT:
A pressure regulating valve which will give a constant pressure output comprises a housing of soft magnetic material such as low carbon steel, an armature of soft magnetic carbon steel in the housing and having an outlet exhaust passageway therethrough provided with an exhaust port, an inlet for the fluid the pressure of which is regulated, a valve seat in the inlet passageway, a dual headed valve, preferably non-magnetic, one head of which coacts with the valve seat to control the inlet and the other head of which controls the exhaust port, an electrical coil for generating a magnetic flux acting on the armature with a force urging the armature inwardly of the housing in opposition to the force of the inlet fluid acting against the dual headed valve and the inner end of the armature urging the armature and valve outwardly, the valve moving with the armature to vary the gap between the valve head and valve seat in the inlet passageway whereby the output pressure is directly a function of the coil current and the resulting magnetic force acting on the armature.
REFERENCES:
patent: 3906982 (1975-09-01), Fleischhacker
patent: 4171004 (1979-10-01), Cerrato et al.
patent: 4598729 (1986-07-01), Naito et al.
Rosenthal Arnold
Sealed Power Corporation
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