A thermally-actuated flow-restrictor device (10) in an aircraft galley insert is provided that includes a housing (12) formed of first (14) and second (16) flanged fittings. The first fitting includes an outlet port (18) for connection to an aircraft galley insert, and the second fitting includes an inlet port (20) for connection to an aircraft potable water supply. The second fitting also includes a boss (32) surrounding the inlet port. A closure element (22) contained within the housing includes a plurality of metals having different coefficients of thermal expansion. This allows the element to actuate depending upon the temperature of water contacting the closure element. When water having a predetermined temperature contacts the closure element, its surface (30) facing the inlet port becomes convexly positioned proximal to the boss, thereby restricting the backflow of water through the flow-restrictor device. Once the closure element cools, its surface facing the inlet port becomes concave, resulting in normal device operation.
THERMALLY-ACTUATED FLOW-RESTRICTOR DEVICE FOR AIRCRAFT BEVERAGE MAKER
DISPOSITIF REDUCTEUR DE DEBIT A ACTIONNEMENT THERMIQUE POUR DISPOSITIF DE PREPARATION DE BOISSONS D'AVION
2017-03-09
Patent
Elektronische Ressource
Englisch
IPC: | F16K VALVES , Ventile / A47J Küchenausstattung , KITCHEN EQUIPMENT / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F24D DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS , Haus- oder Raumheizungssysteme, z.B. Zentralheizungssysteme / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen |
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