Integral bi-directional flow control valve

Details Integral bi-directional flow control valve Integral bi-directional flow control valve

1995-01-12

1996-04-16

Lee, Kevin

Valves and valve actuation

With material guide or restrictor

1375133, 62222, 623246, 62527, F25B 1300

Patent

active

055074685

ABSTRACT:
The present invention is directed to an integral bi-directional flow control valve. The valve includes a housing that defines a passageway for the flow of a fluid in a first direction and a second direction. The housing defines a phase change chamber in the passageway. A first restrictor having a first bore is positioned in the passageway adjacent the phase change chamber. The bore has a volume less than the volume of the chamber. As the fluid flows through the bore in the first direction into the chamber, the fluid changes from a liquid to a gas as it exits the bore. The gas continues to flow through the passageway. A second restrictor having a second bore is positioned in the passageway adjacent the chamber and opposed to the first restrictor. The second restrictor includes a second bore having a volume less than the volume of the chamber. The second bore can be the same size as the first bore or a different size depending on the application. The fluid changes from a liquid to a gas as the fluid flows through the second bore and the chamber in the second direction.

REFERENCES:
patent: 1162319 (1915-11-01), Southworth
patent: 3805825 (1974-04-01), Lovingham
patent: 3992898 (1976-11-01), Duell et al.
patent: 4009592 (1977-03-01), Boerger
patent: 4633681 (1987-01-01), Webber
patent: 4653291 (1987-03-01), Moeller et al.
patent: 4896696 (1990-01-01), Bradley et al.
patent: 4926658 (1990-05-01), Olsen et al.
patent: 5038579 (1991-08-01), Drucker
patent: 5056560 (1991-10-01), DeMartelaere
patent: 5265438 (1993-11-01), Knowles et al.
Aeroquip Engineering: FD20 Flow Control Literature, 1 page.

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