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US 6,832,504 B1Granted
Liquid sensing system for an aircraft galley cooler using a two phase working fluid
AssigneeBE Intellectual Property, Inc.
InventorTimothy Birkmann
Life of this patent
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AssigneeBE Intellectual Property, Inc.
InventorTimothy Birkmann
Estimating the term…
The liquid sensing system for an aircraft cooler includes a middle liquid level sensor for detecting a middle liquid level of a working fluid, a liquid temperature sensor, a ventilation controller for generating a flight phase signal indicative of a flight phase of the aircraft, and a recirculation unit annunciating a working fluid system leak condition based on the middle liquid level, the liquid temperature, and the flight phase. The recirculation unit only evaluates the working fluid system leak condition during a ground flight phase and a cruise flight phase. A bottom liquid level, pressure in a working fluid accumulator and discharge pressure are also determined, and a no working fluid failure condition is annunciated based on the bottom liquid level signal, the accumulator pressure signal, and the discharge pressure signal.
A liquid sensing system for a cooler for an aircraft using a two phase working fluid, the aircraft cooler circulating the two phase working fluid between a cooling heat exchanger and a chiller unit for cooling the two phase working fluid, the liquid sensing system comprising:
A method for sensing leaks in a cooler for an aircraft using a two phase working fluid, the aircraft cooler circulating the two phase working fluid between a cooling heat exchanger and a chiller unit for cooling the two phase working fluid, the method comprising:
Dependencies are inferred from the claim text.