[특허]Liquid galley refrigeration system for aircraft

BE Intellectual Property, Inc.

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Liquid galley refrigeration system for aircraft

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-017/02 B60H-001/32
미국특허분류(USC)	062/185; 062/434; 062/239
출원번호	US-0947222 (2001-09-05)
발명자 / 주소	Simadiris, George Oswald, Ian Douglas
출원인 / 주소	BE Intellectual Property, Inc.
대리인 / 주소	Fulwider Patton Lee &
인용정보	피인용 횟수 : 31 인용 특허 : 8

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The liquid galley refrigeration system for cooling food carts for aircraft employs an intermediate working fluid to transfer heat from one or more food carts to one or more remote chillers, allowing the carts and chillers to be advantageously distributed in the aircraft. A plurality of heat exchanges effect a cooling of the carts wherein heat from the food cart is first transferred to a first airflow; heat from the first airflow is then transferred to an intermediate working fluid that is circulated between a location immediately adjacent the food carts and a remote chiller; heat from the intermediate working fluid is subsequently transferred to the chiller working fluid; and finally, heat from the chiller working fluid is expelled. While the chiller working fluid undergoes a phase change in order to transfer heat from the intermediate working fluid to the cooling air, the intermediate working fluid remains in its liquid phase throughout its circulation. A recirculation pump circulates the intermediate working fluid through a distribution system that may link a plurality of chillers to a plurality of food carts, and the temperature of the food carts is regulated by a combination of controls.

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1. A system for cooling of onboard food carts on aircraft, comprising:a first refrigerant working fluid; a second refrigerant working fluid; a plurality of chiller heat exchangers for transferring heat from said first refrigerant working fluid to said second refrigerant working fluid; an onboard food cart galley plenum for receiving an associated food cart; a galley plenum heat exchanger for transferring heat from said onboard food cart galley plenum to said first refrigerant working fluid for cooling said associated onboard food cart; a valve for controlling the flow of said first refrigerant working fluid through said galley plenum heat exchanger so as to control the cooling capacity of said galley plenum heat exchanger; a plurality of recirculation pumps for circulating said first refrigerant working fluid through said plurality of chiller heat exchangers and through fluid conduits to said galley plenum heat exchanger, said plurality of recirculation pumps being located remotely with respect to said galley plenum heat exchanger; an expansion tank for accommodating any expansion or contraction of said first refrigerant working fluid, said expansion tank being located remotely with respect to said galley plenum heat exchanger; a plurality of chiller pumps for circulating said second refrigerant working fluid through said plurality of chiller heat exchangers and through fluid conduits to a plurality of third heat exchangers, said plurality of chiller pumps, said plurality of chiller heat exchangers, and said plurality of third heat exchangers being located remotely with respect to the cabin area of the aircraft; a blower for blowing air through said galley plenum heat exchanger to cool said air; a display indicating a status of said plurality of recirculation pumps, said valve, and said blower, said display including an interface for controlling said plurality of recirculation pumps, said valve, and said blower in order to control the temperature within said food cart; and ducts to direct said cooled air into said food cart. 2. The system of claim 1, wherein said first refrigerant working fluid undergoes no phase change at any time.3. The system of claim 2, wherein said first refrigerant working fluid remains in a liquid phase at all times.4. A system for cooling of onboard food carts on aircraft having a cabin area, comprising:a first refrigerant working fluid, such first refrigerant working fluid being in a liquid phase at all times; a second refrigerant working fluid; a plurality of chiller heat exchangers for transferring heat from said first refrigerant working fluid to said second refrigerant working fluid; a plurality of recirculation pumps for circulating said first refrigerant working fluid through said plurality of chiller heat exchangers and through fluid conduits to a plurality of galley plenum heat exchangers, each such galley plenum heat exchanger being associated with a food cart galley plenum for cooling an associated food cart, said plurality of recirculation pumps being located remotely with respect to each said food cart galley plenum; a plurality of valves, each configured for controlling the flow of said first refrigerant working fluid to one of said galley plenum heat exchangers for controlling the cooling capacity of such galley plenum heat exchanger; an expansion tank for accommodating any expansion or contraction of said first refrigerant working fluid, said expansion tank being located remotely with respect to the food cart galley plenum; a plurality of chiller pumps for circulating said second refrigerant working fluid through said plurality of chiller heat exchangers and through fluid conduits to a plurality of third heat exchangers, said plurality of chiller pumps, said plurality of chiller heat exchangers and said third heat exchanger being located remotely with respect to the cabin area of the aircraft; a separate blower for blowing air through each of said galley plenum heat exchanger to cool said air and circulate such air within the associated galley plenum for cooling the associated food cart; and a display indicating a status of said plurality of recirculation pumps, said plurality of valves, and each said blower, said display including an interface for controlling said plurality of recirculation pumps to control the circulation rate of said first refrigerant working fluid and hence the cooling capacity of said system, said plurality of valves, and each said blower in order to control the temperature within the associated food cart.

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Liquid galley refrigeration system for aircraft

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Liquid galley refrigeration system for aircraft

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 31

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