Cooling air arrangement for a heat exchanger of an aircraft air conditioning unit
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25D-009/00
F25D-017/04
출원번호
US-0818310
(2001-03-27)
우선권정보
DE-0015570 (2000-03-29)
발명자
/ 주소
Uwe Albert Buchholz DE
Juergen Kelnhofer DE
출원인 / 주소
Airbus Deutschland GmbH DE
대리인 / 주소
W. F. Fasse
인용정보
피인용 횟수 :
13인용 특허 :
3
초록▼
A cooling air arrangement for an aircraft air conditioning unit includes an air inlet, a heat exchanger, an outlet plenum, first and second air outlet channels branching from the plenum, and a fan arranged in the first outlet channel. During flight of the aircraft, external ram air driven into the a
A cooling air arrangement for an aircraft air conditioning unit includes an air inlet, a heat exchanger, an outlet plenum, first and second air outlet channels branching from the plenum, and a fan arranged in the first outlet channel. During flight of the aircraft, external ram air driven into the air inlet flows primarily through the second outlet channel. During ground operation, the fan primarily sucks cooling air through the first outlet channel, which merges back into the second outlet channel at an air mixing junction that functions as an injector nozzle and a non-return flap valve. The first outlet channel is provided in a spiral housing of the fan, or in a smooth curved duct. The air inlet and outlet of the cooling air arrangement, and the air outlet of the air cycle machine, are oriented in the same direction, e.g. the flight forward direction.
대표청구항▼
1. A cooling air arrangement for a heat exchanger of an air conditioning unit of an aircraft, comprising:an air inlet channel; an air outlet channel system including an outlet plenum, a first outlet channel, a second outlet channel, a unified outlet channel, and an air mixing junction, wherein said
1. A cooling air arrangement for a heat exchanger of an air conditioning unit of an aircraft, comprising:an air inlet channel; an air outlet channel system including an outlet plenum, a first outlet channel, a second outlet channel, a unified outlet channel, and an air mixing junction, wherein said first and second outlet channels are both connected at least indirectly to and communicate with said outlet plenum and are both connected flow-parallel with each other, wherein a downstream end of said first outlet channel is connected to said second outlet channel at said air mixing junction, and wherein said unified outlet channel is connected to and extends downstream from said air mixing junction; a fan unit including a rotatable drive shaft and a fan mounted on said drive shaft for rotation therewith, wherein said fan is arranged in said first outlet channel and said drive shaft extends outwardly out of said first outlet channel, and wherein said fan is located on a fan plane that extends perpendicularly relative to an axis of said drive shaft; and a heat exchanger having first and second heat exchange passages that are in heat exchange relation with each other, wherein said heat exchanger is interposed between said air inlet channel and said outlet plenum to establish flow communication from said air inlet channel through said second heat exchange passage to said outlet plenum; wherein: said unified outlet channel leads to and terminates at an exhaust air outlet; said unified outlet channel extends from said air mixing junction downstream toward said exhaust air outlet, on the same side of said fan plane as said drive shaft extending outwardly out of said first outlet channel; an upstream end of said second outlet channel is connected directly to or integrated into said outlet plenum; said outlet plenum is connected directly to said heat exchanger; an upstream end of said first outlet channel is connected directly to said second outlet channel so that said first outlet channel is branched off from said second outlet channel; said unified outlet channel is an extension of said second outlet channel; and said first outlet channel is rejoined back into said second outlet channel by said air mixing junction which is integrated into said second outlet channel.
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이 특허에 인용된 특허 (3)
Army ; Jr. Donald E. (Springfield MA) McAuliffe Christopher (Windsor CT) Crabtree William C. (Tariffville CT), Air cycle machine and fan inlet/diffuser therefor.
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