[특허]Methods and systems for operating oxidizer systems

General Electric Company

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Methods and systems for operating oxidizer systems

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02K-003/00 F02K-007/00 F02K-009/00 F02K-099/00
미국특허분류(USC)	060/224; 060/785
출원번호	US-0994709 (2004-11-22)
등록번호	US-8127527 (2012-03-06)
발명자 / 주소	Giffin, Rollin George
출원인 / 주소	General Electric Company
대리인 / 주소	Clement, Esq., David J.
인용정보	피인용 횟수 : 0 인용 특허 : 17

초록

A method and system for operating a gas turbine engine is provided. The system includes in serial flow arrangement, at least one compressor, a combustor, and at least one turbine. The method includes compressing atmospheric air in the gas turbine engine, channeling at least a portion of the compressed air from the turbine engine flowpath to an oxidizer supply system, and channeling an oxygen-depleted flow of the compressed air from the oxidizer supply system to the gas turbine engine flowpath.

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1. A method of operating an auxiliary gas turbine engine on an aircraft having a propulsion engine, said method comprising: providing an auxiliary gas turbine engine that is configured to be non-propulsive and includes, in serial flow arrangement, at least one compressor, a combustor, and at least one turbine;channeling ambient air into the auxiliary gas turbine engine during proper operation of the propulsion engine;compressing the ambient air in the auxiliary gas turbine engine;channeling at least a portion of the compressed air from the auxiliary gas turbine engine to an air collection and enrichment system; andchanneling an oxygen-depleted flow of the compressed air from the air collection and enrichment system to the auxiliary gas turbine engine. 2. A method in accordance with claim 1 wherein said compressing the ambient air in the auxiliary gas turbine engine comprises compressing the ambient air in the auxiliary gas turbine engine using a low pressure compressor and a high pressure compressor. 3. A method in accordance with claim 1 wherein said channeling an oxygen-depleted flow of the compressed air from the air collection and enrichment system to the auxiliary gas turbine engine comprises regeneratively cooling the compressed air channeled from the auxiliary gas turbine engine to the air collection and enrichment system using the oxygen-depleted flow of the compressed air. 4. A method in accordance with claim 1 wherein channeling an oxygen-depleted flow of the compressed air from the oxidizer supply system comprises channeling the channeling the oxygen-depleted flow from the oxidizer supply system into the gas turbine engine flowpath between a high pressure turbine and a low pressure turbine. 5. A method in accordance with claim 1 wherein said channeling an oxygen-depleted flow of the compressed air from the air collection and enrichment system to the auxiliary gas turbine engine comprises channeling the oxygen-depleted flow of the compressed air into the auxiliary gas turbine engine between the at least one compressor and the combustor. 6. A method in accordance with claim 5 wherein said channeling an oxygen-depleted flow of the compressed air from the air collection and enrichment system to the auxiliary gas turbine engine further comprises increasing a pressure of the oxygen-depleted flow of the compressed air. 7. An oxidizer supply system for an aircraft having a propulsion engine, said oxidizer supply system comprising: an air collection and enrichment system configured to generate liquid oxygen; anda gas turbine engine configured to be non-propulsive and configured to operate using ambient air during proper operation of the propulsion engine, said gas turbine engine comprising: a combustor;a low pressure compressor configured to compress ambient air and discharge a flow of compressed air;a high pressure compressor coupled downstream from and in flow communication with said low pressure compressor, said high pressure compressor configured to further compress the flow of compressed air and discharge a first portion of the further compressed air to said air collection and enrichment system, said high pressure compressor further configured to discharge a second portion of the further compressed air to said combustor; anda turbine coupled in flow communication with said air collection and enrichment system, said air collection and enrichment system configured to discharge a flow of air to said turbine. 8. An oxidizer supply system in accordance with claim 7 wherein said high pressure compressor is further configured to discharge the first portion of the further compressed air to said air collection and enrichment system at a pressure from approximately three hundred psia to approximately four hundred psia. 9. An oxidizer supply system in accordance with claim 8 wherein said high pressure compressor is further configured to discharge the first portion of the further compressed air to said air collection and enrichment system at a pressure of approximately three hundred sixty psia. 10. An oxidizer supply system in accordance with claim 7 wherein said high pressure compressor is further configured to discharge the first portion of the further compressed air to said air collection and enrichment system at a mass flow rate from approximately five hundred lbm per second to approximately six hundred lbm per second. 11. An oxidizer supply system in accordance with claim 10 wherein said high pressure compressor is further configured to discharge the first portion of the further compressed air to said air collection and enrichment system at a mass flow rate equal to approximately five hundred and fifty lbm per second. 12. An oxidizer supply system in accordance with claim 7 wherein said air collection and enrichment system is configured to discharge at least a portion of the flow of air as a flow of oxygen-depleted air in at least one of a gaseous state and a liquid state to said combustor. 13. An oxidizer supply system in accordance with claim 7 wherein said non-propulsive gas turbine engine is configured to channel a flow of oxygen-depleted air in at least one of a gaseous and a liquid state from the air collection and enrichment system to said non-propulsive gas turbine engine flowpath upstream of said low pressure turbine. 14. A gas turbine engine for use on an aircraft having a propulsion engine, said gas turbine engine configured to be non-propulsive and configured to be coupled in flow communication with an air collection and enrichment system for generating liquid oxygen, wherein said gas turbine engine is configured to operate using ambient air during proper operation of the propulsion engine, said gas turbine engine comprising: a combustor;a compressor upstream of said combustor, said compressor configured to receive and compress ambient air for discharge to the air collection and enrichment system; anda turbine downstream of said combustor, at least one of said combustor and said turbine configured to receive a flow of oxygen-depleted air from the air collection and enrichment system. 15. A gas turbine engine in accordance with claim 14 wherein said compressor comprises a high pressure compressor. 16. A gas turbine engine in accordance with claim 14 wherein said compressor is configured to discharge compressed air at a pressure from approximately three hundred psia to approximately four hundred psia and at a mass flow rate from approximately five hundred lbm per second to approximately six hundred lbm per second. 17. A gas turbine in accordance with claim 16 wherein said compressor is configured to discharge compressed air at a pressure of approximately three hundred and sixty psia and at a mass flow rate of approximately five hundred and fifty lbm per second. 18. A propulsion system in accordance with claim 14 wherein the air collection and enrichment system channels a flow of oxygen-depleted air to a non-propulsive gas turbine engine flowpath defined between a high pressure turbine of said non-propulsive gas turbine engine and a low pressure turbine of said non-propulsive gas turbine engine.

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Methods and systems for operating oxidizer systems

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Methods and systems for operating oxidizer systems

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