Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1979-03-26
1980-12-30
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
G05D 701
Patent
active
042417570
ABSTRACT:
There is provided a fluid flow control unit adapted to be connected to a source of fluid under pressure. The unit comprises a housing having an input port and an output port and a body suspended in said housing by means of a diaphragm dividing said housing into an input chamber and an output chamber wherein said body is movable in relation to said ports under the influence of the fluid pressure differential between said input chamber and said output chamber for variably restricting said output port under the displacement of said body toward said output port. There is further provided resilient means for biasing said body toward said input port and at least one passageway formed in said body and passing therethrough for fluid communication between said input and output chambers via said body, the dimensions of which passageway remain unchanged during operation. The result of said arrangement is that the flow of fluid through said output port is controlled at a constant rate by said movable body and resilient means despite variations in the fluid pressure at, at least, one of the ports.
REFERENCES:
patent: 1468434 (1923-09-01), Zander
patent: 2149673 (1939-03-01), Godfrey
patent: 2807144 (1957-09-01), St. Clair
patent: 2950733 (1960-08-01), Perkins
patent: 3024803 (1962-03-01), Beremand
patent: 3172254 (1965-03-01), Wright
patent: 3886968 (1975-06-01), Murrell
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