Quick disconnect fluid coupling with integral pressure relief fe

Details Quick disconnect fluid coupling with integral pressure relief fe Quick disconnect fluid coupling with integral pressure relief fe

1991-12-09

1993-06-01

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

2511496, F16L 3728

Patent

active

052151220

ABSTRACT:
A quick disconnect fluid coupling for a liquid-cooled, preprogrammed card for an aircraft communication or navigation system, the coupling being made up of male and female coupling elements which are closed to flow in the free or uncoupled state and which are open to flow when coupled. The male coupling element has an integral pressure relief feature which operates in two phases. In a first phase the male coupling element remains closed to fluid flow, but accommodates an increase in fluid pressure by movement of an annular valve sleeve within an outer annular member to increase the fluid volume within the annular member. In a second phase an end of a valve member of the male coupling element is biased away from sealing engagement with an end of the annular valve sleeve by fluid pressure, against the biasing effect of a return spring which is trapped between the annular valve sleeve and a perforate annular retainer that is affixed to an opposed end of the valve member, to permit fluid to be dumped from the coupling element.

REFERENCES:
patent: 3994317 (1976-11-01), Miyazaki
patent: 4936345 (1990-06-01), Nix
patent: 5016671 (1991-05-01), Barwise
patent: 5139049 (1992-08-01), Jensen et al.

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