Capacity fuse valve

Details Capacity fuse valve Capacity fuse valve

1993-10-25

1995-05-02

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

137493, 137508, 251 16, F16K 1730

Patent

active

054110505

ABSTRACT:
An improved valve of the class referred to as capacity fuse valves which closes in response to passage of a total fluid flow volume through the valve to the valve outlet. The incoming fluid entering the valve inlet is split into a main flow that passes through a variable main flow metering port to the valve outlet and a control flow that passes through a variable control flow metering orifice and is utilized to close the valve upon passage of a predetermined main flow volume (main flow valve closure volume) through the valve. The areas of the main flow metering port and the control flow metering orifice are varied in response to the fluid inflow rate into the valve inlet and/or fluid temperature in such a way as to maintain a substantially fixed ratio between the main flow rate and the control flow rate, and thereby a substantially constant main flow valve closure volume, over a range of fluid inflow rates and/or temperatures. The area ratio of the main flow metering port and control flow metering orifice is manually adjustable to vary the main flow closure volume of the valve. A related flow proportion method and device.

REFERENCES:
patent: 2592486 (1952-04-01), Stark
patent: 2592487 (1952-04-01), Stark
patent: 4655245 (1987-04-01), Gellerson
patent: 5255700 (1993-10-01), Saville

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