Apparatus for cooling food stuffs, especially in an aircraft

Details Apparatus for cooling food stuffs, especially in an aircraft Apparatus for cooling food stuffs, especially in an aircraft

1994-11-28

1996-02-20

Tapolcai, William E.

Refrigeration

Automatic control

Of external fluid or means

62237, 62239, 62438, 16510428, 165919, F25D 1702

Patent

active

054919797

ABSTRACT:
Food stuffs transported in trolleys are cooled on board of an aircraft directly in the trolley which has a heat exchange surface connected to a secondary coolant flow circuit in the trolley. When the trolley is parked in a parking space for example in an aircraft galley, the heat exchange surface of the trolley is in heat exchange contact with a heat exchanger connected to a central primary refrigerant circuit including a refrigerating unit (4). The heat exchange surface of the trolley and a heat exchange surface of the heat exchanger are connected to separate refrigerant circulating circuit, whereby leaks are avoided while the direct surface contact between the two heat exchange surfaces assures a substantially improved efficiency in the heat exchange.

REFERENCES:
patent: 2938686 (1960-05-01), Van Winkle et al.
patent: 3690118 (1972-09-01), Rainwater
patent: 4034572 (1972-07-01), Morris et al.
patent: 4077228 (1978-03-01), Schumacher et al.
patent: 4402188 (1983-09-01), Skala
patent: 4748823 (1988-06-01), Asano et al.

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