[특허]Bimodal fan, heat exchanger and bypass air supercharging for piston or rotary driven turbine

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

검색도움말
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

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Bimodal fan, heat exchanger and bypass air supercharging for piston or rotary driven turbine

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63H-011/00 B64G-009/00 F02K-009/00 F03H-009/00 F23R-009/00
미국특허분류(USC)	060/204; 060/269; 060/200.1; 060/226.1
출원번호	US-0131144 (2002-04-25)
발명자 / 주소	Kight, Matthew Scott
대리인 / 주소	Bell Robert Platt
인용정보	피인용 횟수 : 22 인용 특허 : 12

초록
▼

The present invention relates to turbine fan aircraft use. In particular, the present invention is directed toward a turbine fan driven by a piston or rotary (e.g., Wankel) engine. The present invention makes possible the most flexible and effective installation of a ducted fan with a fixed horsepower source, namely a conventional internal combustion engine. Effectiveness being defined as full utilization of the engine's available horsepower at the chosen flight points. In a further embodiment of the present invention, a novel heat exchanger may be provided which removes waste heat with minimal drag while boosting the fan system's effective thermal efficiency by increasing the enthalpy of the working fluid. In yet another embodiment of the present invention, bypass air from the turbine may be used to supercharge the piston or rotary engine.

대표
청구항
▼

1. A bimodal fan having a variable flow rate and thrust and power requirement without changing its pressure ratio, said bimodal fan comprising:a fan, driven by an Otto Cycle engine;a duct, enclosing the fan, for directing flow of air from the fan; andtwo concentric but separate flow paths within said duct, said flow paths including:a first, inner low path fully open all the time and sized to provide best take of performance with available horsepower, and;a second, outer flow path, concentric to the first, inner flow path, said second, outer flow path including a radial array of movable vanes for varying the flow through the second, outer flow path. 2. The bimodal fan of claim 1 wherein the movable vanes are closed at takeoff and opened at altitude to provide additional thrust. 3. A bimodal fan having a variable flow rate and thrust and power requirement without changing its pressure ratio, said bimodal fan comprising:a fan, driven by an Otto Cycle engine;a duct, enclosing the fan, for directing flow of air from the fan; andtwo concentric but separate flow paths within said duct said flow paths including:a first, inner flow path fully open all the time and sized to provide best take off performance with available horsepower, and;a second, outer flow path, concentric to the first, inner flow path, said second, outer flow path including a radial array of movable vanes for varying the flow through the second, outer flow path; anda low loss heat exchanger provided in at least one of the first and second flow paths, for transferring waste heat of the Otto cycle combustion engine from a least one of exhaust and cooling water, directly to fan discharge air down stream of the fan so as to remove the engine waste heat, and boost the fan system effective thermal efficiency by increasing the enthalpy of fan discharge air, the heat exchanger comprising a cluster of thin walled tubes which vary in cross sectional shape. 4. The bimodal fan of claim 3, further comprising a supercharge using the fan to supercharge the engine to provide an additional altitude capability, increasing cruising speed and lowering fuel consumption for a given speed and reducing engine wear by diverting pressurized air from the inner fan flow path through hollow struts which inject the pressurized air into a collector plenum which is attached to the outside of said duct in the outer flow path. 5. The bimodal fan of claim 3 wherein the movable vanes are closed at takeoff and opened at altitude to provide additional thrust. 6. A bimodal fan having a variable flow rate and thrust and power requirement without changing its pressure ratio, said bimodal fan comprising:a fan, driven by an engine;a duct, enclosing the fan, for directing flow of air from the fan; andtwo concentric but separate flow paths within said duct, said flow paths including:a first, inner flow path fully open all the time and sized to provide best take of performance with available horsepower, and;a second, outer flow path, concentric to the first, inner flow path, said second, outer flow path including a radial array of movable vanes for varying the flow through the second, outer flow path; anda water injection system, coupled to said engine, for injecting water into an intake of said engine to reduce detonation and increase horsepower output of said engine, said water injection system comprising:a nozzle body, coupled to the intake of said engine, said nozzle body receiving pressurized air from the duct through the rear of the nozzle body and passing through an array of holes into a plenum chamber;a center bullet, provided within the nozzle, for providing a contour for a narrow nozzle annulus, said bullet being concentric to the nozzle body;a narrow annular gap, formed between the center bullet and nozzle body;an annular water chamber, formed in the nozzle body, for receiving pressurized water from a pressurized water source; anda circumferential gap leading from said annular water chamber to the no zzle annulus. 7. The bimodal fan of claim 6, wherein water enters the nozzle body and fills the annular water chamber which feeds water to the circumferential gap introducing water into the airflow such that as water emerges from the circumferential gap, the shearing action of high velocity air through the nozzle body forms small droplets of water injected into the engine. 8. The bimodal fan of claim 6 wherein the movable vanes are closed at takeoff and opened at altitude to provide additional thrust. 9. A method of generating variable thrust from a ducted fan without changing its pressure ratio, the method of generating variable thrust from a ducted fan comprising the steps of:generating, using a fan driven by an Otto Cycle engine, a flow of air through a duct, enclosing the fan and directing flow of air from the fan, anddiverting the flow of air through two concentric but separate flow paths within the duct, the flow paths including a first, inner flow path fully open all the time and sized to provide best take off performance with available horsepower, and a second, outer flow path, concentric to the first, inner flow path, the second, outer flow path including a radial array of movable vanes for varying the flow through the second, outer flow path. 10. The method of generating variable thrust from a ducted fan of claim 9 wherein the movable vanes are closed at takeoff and opened at altitude to provide additional thrust. 11. A method of generating variable thrust from a ducted fan without changing its pressure ratio, the method of generating variable thrust from a ducted fan comprising the steps of:generating, using a fan driven by an engine, a flow of air through a duct, enclosing the fan and directing flow of air from the fan,diverting the flow of air through two concentric but separate flow paths within the duct, the flow paths including a first, inner flow path fully open all the time and sized to provide best take off performance with available horsepower, and a second, outer flow path, concentric to the first, inner flow path, the second, outer flow path including a radial array of movable vanes for varying the flow through the second, outer flow path,directing the flow of air through a low loss heat exchanger provided in at least one of the first and second flow paths, andtransferring waste heat of the engine from at least one of exhaust and cooling water directly to fan discharge air down stream of the fan so as to remove the engine waste heat, and boost the fan system effective thermal efficiency by increasing the enthalpy of fan discharge air. 12. The method of generating variable thrust from a ducted fan of claim 11, further comprising the steps of:using the fan to supercharge the engine to provide an additional altitude capability, increasing cruising speed and lowering fuel consumption for a given speed and reducing engine wear by diverting pressurized air from the inner fan flow path through hollow struts which inject the pressurized air into a collector plenum which is attached to the outside of the duct in the outer flow path. 13. The method of generating variable thrust from a ducted fan of claim 11 wherein the movable vanes are closed at takeoff and opened at altitude to provide additional thrust. 14. A method of generating variable thrust from a ducted fan without changing its pressure ratio, the method of generating variable thrust from a ducted fan comprising the steps of:generating, using a fan driven by an engine, a flow of air through a duct, enclosing the fan and directing flow of air from the fan,diverting the flow of air through two concentric but separate flow paths within the duct, the flow paths including a first, inner flow path fully open all the time and sized to provide best take off performance with available horsepower, and a second, outer flow path, concentric to the first, inner flow path, the second, outer flow path including a radial array of movable vanes for varying the flow through the second, outer flow path,injecting water into an intake of the engine to reduce detonation and increase horsepower output of the engine, said step of injecting water into the engine comprising the steps ofproviding a nozzle body, coupled to the intake of the engine, the nozzle body receiving pressurized air from the duct through the rear of the nozzle body and passing through an array of holes into a plenum chamber,providing a center bullet within the nozzle, for providing a contour for a narrow nozzle annulus, the bullet being concentric to the nozzle body,providing a narrow annular gap between the center bullet and nozzle body,providing an annular water chamber, formed in the nozzle body, for receiving pressurized water from a pressurized water source, andproviding a circumferential gap leading from an annular water chamber to the nozzle annulus. 15. The method of generating variable thrust from a ducted fan of claim 14, wherein water enters the nozzle body and fills the annular water chamber which feeds water to the circumferential gap introducing water into the airflow such that as water emerges from the circumferential gap, the hearing action of high velocity air through the nozzle body forms small droplets of water injected into the engine. 16. The method of generating variable thrust from a ducted fan of claim 14 wherein the movable vanes are closed at takeoff and opened at altitude to provide additional thrust. 17. A water injection system for injecting water into an intake of an engine to reduce detonation and increase horsepower output of said engine, said water injection system comprising:a nozzle body, coupled to the intake of said engine, said nozzle body receiving pressurized air through the rear of the nozzle body and passing through an array of holes into a plenum chamber;a center bullet, provided within the nozzle, for providing a contour for a narrow nozzle annulus, said bullet being concentric to the nozzle body;a narrow annular gap, formed between the center bullet and nozzle body;an annular water chamber, formed in the nozzle body, for receiving pressurized water from a pressurized water source; anda circumferential gap leading from an annular water chamber to the nozzle annulus. 18. The water injection system of claim 17, wherein water enters the nozzle body and fills the annular water chamber which feeds water to the circumferential gap introducing water into the airflow such that as water emerges from the circumferential gap, the shearing action of high velocity air through the nozzle body forms small droplets of water injected into the engine. 19. A bimodal fan having a variable flow rate and thrust and power requirement without changing its pressure ratio, said bimodal fan comprising:a fan, driven by an engine;a duct, enclosing the fan, for directing flow of air from the fan; andtwo concentric but separate flow paths within said duct, said flow paths including:a first, inner flow path fully open all the time and sized to provide best take of performance with available horsepower, and;a second, outer flow path, concentric to the first, inner flow path, said second, outer flow path including a radial array of movable vanes mounted in the flow path before the fan, for varying the flow through the second, outer flow path. 20. A method of generating variable thrust from a ducted fan without changing its pressure ratio, the method of generating variable thrust from a ducted fan comprising the steps of:generating, using a fan driven by an engine, a flow of air through a duct, enclosing the fan and directing flow of air from the fan, anddiverting the flow of air through two concentric but separate flow paths within the duct, the flow paths including a first, inner flow path fully open all the time and sized to provide best take off performance with available horsepower, and a second, outer flow path, concentric to the first, inner flow path, the second, outer flow path including a radial array of movable vanes mounted in the duct ahead of the fan, for varying the flow through the second, outer flow path. 21. A bimodal fan having a variable flow rate and thrust and power requirement without changing its pressure ratio, said bimodal fan comprising:a fan, driven by an engine, the fan comprising an inner first portion separated from an outer second portion, the first portion and second portion defining two concentric but separate flow paths;a duct, enclosing the fan, for directing flow of air to and from the fan, the duct including the two concentric but separate flow paths within said duct, the said flow paths including:a first, inner flow path duct portion fully open all the time and sized to provide best take off performance with available horsepower, the firs inner flow path duct portion ducting air to and from the inner first portion of the fan, and;a second, outer flow path duct portion, concentric to the first, inner flow path, said second, outer flow path duct portion including a radial array of movable vanes mounted in the flow path before the fan, for varying the flow through the second, outer flow path duct portion, the second flow path duct portion ducting air to and from the outer second portion of the fan. 22. A method of generating variable thrust from a ducted fan without changing its pressure ratio, the method of generating variable thrust from a ducted fan comprising the steps of:generating, using a fan driven by an engine, the fan including an inner first portion separated from an outer second portion, the first portion and second portion defining two concentric but separate flow paths, a flow of air through a duct, enclosing the fan and directing flow of air from the fan, anddiverting the flow of air through the two concentric but separate flow paths within the duct and the fan, the flow paths including a first, inner flow path fully open all the time and sized to provide best take off performance wit available horsepower, and ducting air to and from the inner first portion of the fan, and a second, outer flow path, concentric to the first, inner flow path, ducting air to the second outer portion of the fan, the second, outer flow path including a radial array of movable vanes mounted in the duct ahead of the fan, for varying the flow through the second, outer flow path.

이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 22

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

연합인증

특허 상세정보

Bimodal fan, heat exchanger and bypass air supercharging for piston or rotary driven turbine

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 22

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Bimodal fan, heat exchanger and bypass air supercharging for piston or rotary driven turbine

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 22

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼