[특허]Multiple ASM OBIGGS with different permeability and selectivity membranes

L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

안녕하세요!
ScienceON 챗봇입니다.
궁금한 것은 저에게 물어봐주세요.

특허 상세정보

MyON담기

내보내기

Multiple ASM OBIGGS with different permeability and selectivity membranes

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64D-037/00
미국특허분류(USC)	244/135R; 055/323; 055/482; 137/088; 137/093; 096/007; 096/155
출원번호	US-0107141 (1998-06-30)
등록번호	US-8245978 (2012-08-21)
발명자 / 주소	Beers, Karl S. Anderson, Charles L.
출원인 / 주소	L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
대리인 / 주소	Cronin, Christopher J.
인용정보	피인용 횟수 : 9 인용 특허 : 20

초록

A method and system for providing nitrogen-enriched air (NEA) to aircraft fuel tanks using multiple air separation modules (ASMs). The ASMs employ membranes having different permeabilities and selectivities which are particularly selected to meet the varying NEA needs of the fuel tanks during flight.

대표
청구항
▼

1. A method for inserting an aircraft fuel tank, said method comprising the steps of: (a) contacting compressed air with one or more first membrane modules at conditions effective to produce a first nitrogen-enriched air stream;(b) introducing said first nitrogen-enriched air stream into said fuel tank during periods of low demand for nitrogen-enriched air;(c) contacting compressed air with one or more second membrane modules at conditions effective to produce a second nitrogen-enriched air stream; and(d) introducing said second nitrogen-enriched air stream into said fuel tank during periods of high demand for nitrogen-enriched air,wherein said first membrane modules have a lower O2 permeance and a higher O2/N2 selectivity than said second membrane modules, andwherein at least one of said first nitrogen-enriched air stream and said second nitrogen-enriched air stream is introduced directly into the fuel in said fuel tank at conditions effective to liberate at least a portion of dissolved O2 in the fuel. 2. The method according to claim 1, wherein said low demand periods include cruising. 3. The method according to claim 1, wherein said high demand periods include ascent or descent or both. 4. The method according to claim 1, wherein said first nitrogen-enriched air stream is introduced directly into the fuel in the fuel tank to liberate at least a portion of dissolved O2 in the fuel. 5. The method according to claim 1, wherein said first nitrogen-enriched air stream has a lower flow rate than said second nitrogen-enriched air stream. 6. The method according to claim 1, wherein said first nitrogen-enriched air stream has a flow rate of 0.05 to 20 lbs/min at 9% by volume O2 or less, and said second nitrogen-enriched air stream has a flow rate of 5 to 100 lbs/min at 9% by volume O2 or less. 7. The method according to claim 6, wherein said first nitrogen-enriched air stream has a flow rate of 0.5 to 2.0 lbs/min at 5% by volume O2 or less, and said second nitrogen-enriched air stream has a flow rate of 5 to 50 lbs/min at 9% by volume O2 or less. 8. The method according to claim 1, wherein said first membrane modules have an O2 permeance of at least 10 GPU and an O2/N2 selectivity of at least 4.0, and said second membrane modules have an O2 permeance of at least 100 GPU and an O2/N2 selectivity of at least 1.5. 9. The method according to claim 8, wherein said first membrane modules have an O2 permeance of at least 30 GPU and an O2/N2 selectivity of at least 5.0, and said second membrane modules have an O2 permeance of at least 200 GPU and an O2/N2 selectivity of at least 2. 10. The method according to claim 1, wherein said compressed air comprises bleed air. 11. The method according to claim 1, wherein said compressed air has a pressure of 10 to 300 psig. 12. The method according to claim 1, which comprises introducing said first nitrogen-enriched air stream and said second nitrogen-enriched air stream into said fuel tank during periods of high demand for nitrogen-enriched air. 13. A method for inserting an aircraft fuel tank, said method comprising the steps of: (a) contacting compressed air with one or more first membrane modules at conditions effective to produce a first nitrogen-enriched air stream;(b) introducing said first nitrogen-enriched air stream into said fuel tank during cruising;(c) contacting compressed air with one or more second membrane modules at conditions effective to produce a second nitrogen-enriched air stream; and(d) introducing said second nitrogen-enriched air stream into said fuel tank during ascent or descent or both,wherein said first membrane modules have a lower O2 permeance and a higher O2/N2 selectivity than said second membrane modules, andwherein at least one of said first nitrogen-enriched air stream and said second nitrogen-enriched air stream is introduced directly into the fuel in said fuel tank at conditions effective to liberate at least a portion of dissolved O2 in the fuel. 14. The method according to claim 13, wherein said first nitrogen-enriched air stream is introduced directly into the fuel in the fuel tank to liberate at least a portion of dissolved O2 in the fuel. 15. The method according to claim 13, wherein said first nitrogen-enriched air stream has a lower flow rate than said second nitrogen-enriched air stream. 16. The method according to claim 13, wherein said first nitrogen-enriched air stream has a flow rate of 0.05 to 20 lbs/min at 9% by volume O2 or less, and said second nitrogen-enriched air stream has a flow rate of 5 to 100 lbs/min at 9% by volume O2 or less. 17. The method according to claim 16, wherein said first nitrogen-enriched air stream has a flow rate of 0.5 to 2.0 lbs/min at 5% by volume O2 or less, and said second nitrogen-enriched air stream has a flow rate of 5 to 50 lbs/min at 9% by volume O2 or less. 18. The method according to claim 13, wherein said first membrane modules have an O2 permeance of at least 10 GPU and an O2/N2 selectivity of at least 4.0, and said second membrane modules have an O2 permeance of at least 100 GPU and an O2/N2 selectivity of greater than 1.5. 19. The method according to claim 18, wherein said first membrane modules have an O2 permeance of at least 30 GPU and an O2/N2 selectivity of at least 5.0, and said second membrane modules have an O2 permeance of at least 200 GPU and an O2/N2 selectivity of at least 2. 20. The method according to claim 13, wherein said compressed air comprises bleed air. 21. The method according to claim 13, wherein said compressed air has a pressure of 10 to 300 psig. 22. The method according to claim 13, which comprises introducing said first nitrogen-enriched air stream and said second nitrogen-enriched air stream into said fuel tank during ascent or descent or both. 23. A system for inserting an aircraft fuel tank, said system comprising: (a) one or more first membrane modules for separating compressed air into a first permeate stream comprising oxygen-enriched air and a first retentate stream comprising nitrogen-enriched air;(b) a first conduit for conveying said first retentate stream into said fuel tank during periods of low demand for nitrogen-enriched air;(c) one or more second membrane modules for separating compressed air into a second permeate stream comprising oxygen-enriched air and a second retentate stream comprising nitrogen-enriched air;(d) a second conduit for conveying said second retentate stream into said fuel tank during periods of high demand for nitrogen-enriched air; and(e) a third conduit for introducing at least one of said first retentate stream and said second retentate stream directly into the fuel in said fuel tank to liberate at least a portion of dissolved O2 in the fuel,wherein said one of more first membrane modules have a lower O2 permeance and a higher O2/N2 selectivity than said one or more second membrane modules. 24. The system according to claim 23, wherein said first membrane modules have an O2 permeance of at least 10 GPU and an O2/N2 selectivity of at least 4.0, and said second membrane modules have an O2 permeance of at least 100 GPU and an O2/N2 selectivity of at least 1.5. 25. The system according to claim 24, wherein said first membrane modules have an O2 permeance of at least 30 GPU and an O2/N2 selectivity of at least 5.0, and said second membrane modules have an O2 permeance of at least 200 GPU and an O2/N2 selectivity of at least 2. 26. The system according to claim 23, wherein said first membrane modules and said second membrane modules are arranged in a bundle-in-bundle configuration. 27. The system according to claim 26, wherein said first conduit and said second conduit have common portions. 28. A system for inserting an aircraft fuel tank, said system comprising: (a) one or more first membrane modules for separating compressed air into a first permeate stream comprising oxygen-enriched air and a first retentate stream comprising nitrogen-enriched air;(b) a first conduit for conveying said first retentate stream into said fuel tank during periods of low demand for nitrogen-enriched air;(c) one or more second membrane modules for separating compressed air into a second permeate stream comprising oxygen-enriched air and a second retentate stream comprising nitrogen-enriched air;(d) a second conduit for conveying said second retentate stream into said fuel tank during periods of high demand for nitrogen-emiched air;wherein said first and/or second conduits are connected to introduce said first and/or second retentate stream, respectively, directly into the fuel in said fuel tank to liberate at least a portion of dissolved O2 in the fuel; andwherein said one or more first membrane modules have a lower 02 permeance and a higher 02/N2 selectivity than said one or more second membrane modules.

이 특허에 인용된 특허 (20)

이 특허를 인용한 특허 피인용횟수: 9

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

특허 상세정보

Multiple ASM OBIGGS with different permeability and selectivity membranes

초록

대표
청구항
▼

이 특허에 인용된 특허 (20)

이 특허를 인용한 특허 피인용횟수: 9

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

특허 상세정보

Multiple ASM OBIGGS with different permeability and selectivity membranes

초록

대표청구항 ▼

이 특허에 인용된 특허 (20)

이 특허를 인용한 특허 피인용횟수: 9

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

대표
청구항
▼