Environmental control system mixing cabin discharge air with bleed air during a cycle
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0695543
(2015-04-24)
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등록번호 |
US-9840333
(2017-12-12)
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발명자
/ 주소 |
- Bruno, Louis J.
- D'Orlando, Paul M.
- Army, Jr., Donald E.
- Zywiak, Thomas M.
- Hipsky, Harold W.
- Kline, Erin G.
- Rusich, Richard
- Maljanian, Jr., John M.
- Surawski, Eric
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출원인 / 주소 |
- HAMILTON SUNDSTRAND CORPORATION
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air directly flows from a source to mix with recirculated air downstream of a compressor of the air cycle mach
A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air directly flows from a source to mix with recirculated air downstream of a compressor of the air cycle machine in accordance with a high pressure mode or a recirculation chilling mode. The system and method can also utilize the recirculated air flowing from the chamber to drive or maintain the air cycle machine in accordance with the above modes.
대표청구항
▼
1. An environmental control system, comprising: an air cycle machine comprising a compressor and a turbine,wherein the compressor includes a compressor outlet that is matched to a bleed air source:at least one heat exchanger;wherein recirculated air that flows directly into the compressor,wherein th
1. An environmental control system, comprising: an air cycle machine comprising a compressor and a turbine,wherein the compressor includes a compressor outlet that is matched to a bleed air source:at least one heat exchanger;wherein recirculated air that flows directly into the compressor,wherein the recirculated air discharged from the compressor outlet is at a same pressure as bleed air supplied by the bleed air source,wherein the recirculated air discharged from the compressor outlet is combined with the bleed air supplied by the bleed air source to produce mixed air,wherein a flow of the mixed air is provided to the at least one heat exchanger;wherein the environmental control system is configured to, during a recirculation chilling mode, cause the flow of the bleed air to bypass the compressor and provide portions of the flow of the recirculated air directly to the turbine and the compressor. 2. The environmental control system of claim 1, further comprises: the air cycle machine comprising a second turbine,a high pressure water separator configured to condition the mixed air before the mixed air is passed to the chamber,wherein the second turbine is configured to receive the mixed air from the high pressure water separator,wherein as the mixed air expands across the second turbine, work is extracted by the air cycle machine to compress the recirculated air via the compressor. 3. The environmental control system of claim 1, wherein as a first portion of the recirculated air expands across the turbine, work is extracted by the air cycle machine to compress a second portion of the recirculated air via the compressor,wherein the second portion of the recirculated air discharged from the compressor outlet is combined with the bleed air supplied by the bleed air source to produce mixed air. 4. The environmental control system of claim 3, wherein the first portion of the flow of the recirculated air expands across the turbine based on an energy ratio to turn a shaft of the air cycle machine. 5. The environmental control system of claim 4, wherein the shaft of the air cycle machine rotates at a minimum speed. 6. The environmental control system of claim 1, further comprising: a first flow valve configured to divert the flow of the bleed air from bypassing the compressor or to directly entering the compressor; anda second flow valve configured to provide the flow of the recirculated air directly into the turbine. 7. The environmental control system of claim 1, wherein the recirculated air expands across the turbine based on an energy ratio to turn a shaft of the air cycle machine. 8. The environmental control system of claim 1, wherein when a first portion of the recirculated air expands across the turbine, work is extracted by an air cycle machine of the environmental control system to compress a second portion of the recirculated air via the compressor. 9. The environmental control system of claim 1, configured to operate in a boost mode, wherein when the recirculated air expands across a turbine, work is extracted by an air cycle machine of the environmental control system to compress the bleed air via the compressor. 10. The environmental control system of claim 1, configured to operate in a low pressure mode, wherein the recirculated air expands across a turbine to turn the air cycle machine at a minimum speed greater than a windmilling speed. 11. The environmental control system of claim 1, wherein the environmental control system is included within an aircraft.
이 특허에 인용된 특허 (5)
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Gupta Alankar (Renton WA) Runnels Joe N. (Bellevue WA), Cabin-air recirculation system powered by cabin-to-ambient pressure differential.
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Biagini Guido (Cherry Valley IL), Environmental control system for aircraft with improved efficiency.
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Farrington Franklin D., High efficiency environmental control systems and methods.
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Drew Diane G. (Suffield CT) Christians Douglas L. (Vernon CT), Independent compartment temperature control for single-pack operation.
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Murry Roger P. ; Clarke Kathrine J. ; Matulich Dan S., Two spool environmental control system.
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