[특허]Energy efficient ECS powered by a variable voltage/variable frequency power system

Lockheed Corporation

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

Energy efficient ECS powered by a variable voltage/variable frequency power system

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64D-013/02
미국특허분류(USC)	244/118.5; 098/001.5
출원번호	US-0584699 (1984-02-29)
발명자 / 주소	Cronin, Michael J.
출원인 / 주소	Lockheed Corporation
대리인 / 주소	Dachs, Louis L.
인용정보	피인용 횟수 : 25 인용 특허 : 3

초록
▼

The invention is an ECS system designed to utilize an induction motor (12) and a cabin compressor (14) for providing pressurized air that serves as a source of energy for heating, cooling, pressurizing and other air needs of modern aircraft. An aircraft engine driven generator, preferably a permanent-magnet generator (of the samarium-cobalt, SmCo, type), furnishes variable-voltage/variable frequency, VV/VF, power to the motor (12). The electric motor itself in the preferred embodiment is a highly reliable squirrel-cage induction motor (12) powered directly from the VV/VF supply, with the result that its speed is proportional to the generator frequency, which in turn is dependent on the aircraft engine speed. The main cabin compressor (14) and a secondary (auxiliary) supercharging compressor (18) are both mounted on the motor shaft. The motor-compressor configuration is further characterized in that the ac motor has pole-changing winding (typically two), which permits two speed operation, while the cabin compressor is provided with inlet guide vanes (16). The interactive combination of these two features makes it possible to furnish the requisite air mass flow and pressurization levels over the conditions of variable air density and variable atmospheric pressure, as the airplane operates throughout its flight envelope.

대표
청구항
▼

1. In an aircraft having at least one variable speed aircraft engine and an environmental control system, the improvements comprising: an induction motor, said motor having an axially aligned drive shaft exiting opposite ends thereof; a main cabin compressor arranged to be directly driven by said drive shaft on a first end of said motor, said main cabin compressor having an inlet connected to a first outside or ram air inlet and adapted to pressurize the cabin of said aircraft; a supercharger compressor arranged to be driven by said motor through a clutch on the opposite end of said motor, said supercharger compressor having an inlet coupled to a second outside or ram air inlet and an outlet coupled to said main cabin compressor; valve means having a first position isolating said supercharging compressor from said main cabin compressor and a second position coupling said supercharging compressor in series to said main cabin compressor and isolating said first outside or ram air inlet from said main cabin compressor; and at least one generator driven by said at least one aircraft engine for providing variable voltage/variable frequency power to said motor, said at least one generator being directly driven by said at least one engine. 2. In an aircraft having at least one variable speed aircraft engine and an environmental control system, the improvements comprising: at least one generator driven by said at least one aircraft engine; a two-speed induction motor arranged to receive power from said at least one generator; a main cabin compressor arranged to be directly driven by said induction motor, said main cabin compressor having an inlet connected to a first outside or ram air inlet and adapted to pressurize the cabin of said aircraft; a supercharging compressor arranged to be driven by said induction motor, said supercharging compressor having an inlet connected to a second outside or ram air inlet and an outlet coupled to said inlet of said main cabin compressor; valve means having a first position isolating said supercharging compressor from said main cabin compressor and a second position coupling said supercharging compressor in series to said main cabin compressor and isolating said first outside or ram air inlet from said main cabin compressor; and an expansion cooling turbine having an inlet coupled to the outlet of said main cabin compressor and an outlet coupled to said cabin arranged to be driven by said induction motor. 3. An aircraft as in claim 2, wherein said supercharger compressor is driven through an electromagnetic clutch. 4. An aircraft as in claim 2, wherein said at least one generator is a synchronous ac generator of a permanent magnet type. 5. An aircraft as in claim 4, wherein said at least one generator is as samarium-cobalt generator. 6. An aircraft as in claim 2, wherein said at least one generator is a wound-field type generator. 7. An aircraft as in claim 2, wherein said induction motor is a squirrel-cage rotor type motor. 8. An aircraft as in claim 2, wherein said induction motor is a wound rotor type motor having speed control means. 9. An aircraft as in claim 7, wherein the stator of said motor is wound with alternative electromagnetic pole configurations to permit step-changes of speed. 10. An aircraft as in claim 2, wherein said cabin compressor includes inlet guide vanes and a turbine which is adapted to be used as an expansion cooling turbine. 11. An aircraft as in claim 7, wherein the stator of said motor carries two electromagnetic pole configurations to permit selectable speed changes. 12. An aircraft as in claim 11 including a logic assembly arranged to receive flight station/cockpit inputs and sensor data from said at least one engine, the cabin interior, and environmental control system ducts. 13. An aircraft as in any one of claims 2, 8, 9, 10, or 12 including a plurality of bypass valves, louvered shutters, and heat exchangers adapted to modulate the degree of heat transfer to and from the air mass flow into the aircraft cabin. 14. An aircraft as in any one of claims 8, 9 or 11 in which said motor speeds are changed by different magnetic pole configurations, said cabin compressor including inlet guide vanes, whereby said inlet guide vanes and motor speed changes are adapted to maintain a conditioned environment in the aircraft cabin, as the outside air density, atmospheric pressure change with operation of the airplane through its ground and flight envelope. 15. An aircraft as in claim 2, including an electromagnetic disconnect clutch for mechanically isolating said supercharger compressor. 16. An aircraft as in any one of claims 8, 9, or 11, including a logic assembly, said cabin compressor including inlet guide vanes, said logic assembly being adapted to adjust said inlet guide vanes and motor speed changes whereby the requirements of said environmental control system over the ground, climb, cruise, and descent flight conditions of said aircraft when the speed of said at least one engine varies over a speed range. 17. An aircraft as in claim 15, wherein said supercharger compressor is arranged to be brought on line by activation (opening) of said clutch via a logic assembly to maintain aircraft cabin pressurization when said at least one engine operates at lower speeds during idle descent let down of said aircraft, when said aircraft descends into higher density air and higher atmospheric pressures.

이 특허에 인용된 특허 (3)

이 특허를 인용한 특허 피인용횟수: 25

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

Energy efficient ECS powered by a variable voltage/variable frequency power system

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (3)

이 특허를 인용한 특허 피인용횟수: 25

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

특허 상세정보

Energy efficient ECS powered by a variable voltage/variable frequency power system

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (3)

이 특허를 인용한 특허 피인용횟수: 25

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼