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公开(公告)号：DE69706886D1
公开(公告)日：2001-10-25
申请号：DE69706886
申请日：1997-12-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KLINE G , HARRIS L , WILMOT E , CHRISTIANS DOUGLAS
Abstract: An air cycle air conditioning system comprises a first air source for supplying cooling air and a second air source for supplying high temperature system air. The system further includes a device for transferring heat from the high temperature air and producing conditioned air having a temperature substantially lower than the high temperature system air. A mechanism for directing the conditioned air to the high temperature air prior to the high temperature air entering a component of the system for decreasing the temperature of the high temperature system air, prior to it contacting the system component is also provided. An air cycle air conditioning method comprises the steps of supplying cooling air and high temperature system air to a system component; transferring heat from the high temperature system air and producing conditioned air having a temperature substantially lower than the higher temperature system air; and mixing at least a portion of the conditioned air and the system air prior to its contact with the system component for decreasing the temperature of the high temperature air prior to reaching the system component.
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公开(公告)号：DE69706408D1
公开(公告)日：2001-10-04
申请号：DE69706408
申请日：1997-04-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHRISTIANS L , DREW G , HARRIS L , KLINE G , ZAGER MICHAEL
Abstract: An integrated environmental control system is disclosed for providing conditioned supply air to loads such as a passenger cabin of an aircraft. The system comprises at least two shafts, each shaft having a fan, compressor, and turbine mechanically secured to the shaft; common heat transfer components including primary and secondary heat exchangers, a reheater, and a condenser with a water collector; lines that deliver the supply air separately through the compressors and turbines of each shaft and deliver the supply air in common through the common heat transfer components to the load; and shutoff valves secured in fluid communication with each turbine. Upon interruption in the flow of cooled supply air out of a particular turbine secured to any of the shafts, a shutoff valve shuts off transfer of the supply air to that particular turbine on that interrupted shaft and the remaining shafts and their respective fans, compressors, turbines, and the common heat transfer components continue to receive, condition and deliver the supply air to the load in a redundant operating mode. Because the total heat exchange capacity of the integrated, common heat transfer components is large enough to satisfy conditioned air requirements of the load, and in the redundant operating mode the supply air is exposed to that total heat exchange capacity, the system provides enhanced redundant operating mode performance and offers decreased weight, size, and cost over known systems having mechanical components of a comparable size, weight and work capacity.
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公开(公告)号：DE69706886T2
公开(公告)日：2002-03-28
申请号：DE69706886
申请日：1997-12-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KLINE G , HARRIS L , WILMOT E , CHRISTIANS DOUGLAS
Abstract: An air cycle air conditioning system comprises a first air source for supplying cooling air and a second air source for supplying high temperature system air. The system further includes a device for transferring heat from the high temperature air and producing conditioned air having a temperature substantially lower than the high temperature system air. A mechanism for directing the conditioned air to the high temperature air prior to the high temperature air entering a component of the system for decreasing the temperature of the high temperature system air, prior to it contacting the system component is also provided. An air cycle air conditioning method comprises the steps of supplying cooling air and high temperature system air to a system component; transferring heat from the high temperature system air and producing conditioned air having a temperature substantially lower than the higher temperature system air; and mixing at least a portion of the conditioned air and the system air prior to its contact with the system component for decreasing the temperature of the high temperature air prior to reaching the system component.
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公开(公告)号：DE69706408T2
公开(公告)日：2002-06-06
申请号：DE69706408
申请日：1997-04-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHRISTIANS L , DREW G , HARRIS L , KLINE G , ZAGER MICHAEL
Abstract: An integrated environmental control system is disclosed for providing conditioned supply air to loads such as a passenger cabin of an aircraft. The system comprises at least two shafts, each shaft having a fan, compressor, and turbine mechanically secured to the shaft; common heat transfer components including primary and secondary heat exchangers, a reheater, and a condenser with a water collector; lines that deliver the supply air separately through the compressors and turbines of each shaft and deliver the supply air in common through the common heat transfer components to the load; and shutoff valves secured in fluid communication with each turbine. Upon interruption in the flow of cooled supply air out of a particular turbine secured to any of the shafts, a shutoff valve shuts off transfer of the supply air to that particular turbine on that interrupted shaft and the remaining shafts and their respective fans, compressors, turbines, and the common heat transfer components continue to receive, condition and deliver the supply air to the load in a redundant operating mode. Because the total heat exchange capacity of the integrated, common heat transfer components is large enough to satisfy conditioned air requirements of the load, and in the redundant operating mode the supply air is exposed to that total heat exchange capacity, the system provides enhanced redundant operating mode performance and offers decreased weight, size, and cost over known systems having mechanical components of a comparable size, weight and work capacity.
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