Devices for controlling flow of fluid under pressure

Details Devices for controlling flow of fluid under pressure Devices for controlling flow of fluid under pressure

1981-07-06

1985-05-28

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137110, 137115, F16K 31124

Patent

active

045194173

ABSTRACT:
A system for controlling flow of fluid along a conduit from a source of fluid under pressure to a consumer device comprises a primary throttle for connection in the conduit and controllable between a first condition in which it is at least partially closed and a second condition in which it is more fully open, and a secondary throttle defining at least one orifice for connection in the conduit and including a member which is displaceable to vary the area of the orifice. A first force dependent upon the pressure drop across the secondary throttle and a second force dependent upon the time integral of the pressure drop across the primary throttle are applied to the member, the first and second forces being oppositely directed, whereby the member is displaced towards a position in which the pressure drop across the secondary throttle bears a predetermined relationship to the time integral of the pressure drop across the secondary throttle.

REFERENCES:
patent: 3168902 (1965-02-01), Pearl

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