[특허]Blended winglet

Blended winglet 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-005/08
출원번호	US-0011770 (1993-02-01)
발명자 / 주소	Gratzer Louis B. (2201 3rd Ave. #2004 Seattle WA 98121)
인용정보	피인용 횟수 : 72 인용 특허 : 0

초록 ▼

The blended winglet is a wing-like device comprising a blended lifting surface attachable to each airplane wing tip so as to achieve minimum induced drag for a given surface size. The device consists of a nearly planar, straight section joined to the wing tip through a curved transition section designed to obtain an optimum aerodynamic loading. Surface streamwise cross sections are airfoils having appropriate thickness, camber and twist variations. In a critical departure from the usual winglet design approach, the sensitive transition section features a smoothly varying chord distribution which blends smoothly and continuously with the wing and with the adjoining straight section. In the transition section the leading edge sweep angle is limited to 65°or less and the airfoil nose camber is correspondingly increased to accommodate the high sweep. The transition section also features limited in-plane curvature (i.e., large radius) to accommodate a large chord variation and to provide a practical means of achieving optimum aerodynamic loading. It also minimizes aerodynamic interference and undesirable flow separation and compressibility effects. Specific mathematical guidelines for the selection of winglet geometry are presented as a design framework for achieving maximum drag reduction and performance improvement while maintaining favorable characteristics over a range of operating conditions.

대표청구항 ▼

A blended wiglet attachable to a tip of a wing; said wing having an upper and a lower surface, a leading edge and a trailing edge; said wing leading edge and trailing edge being the fore and aft intersections of said upper and lower surfaces; said blended winglet comprising a curved transition section and a near-planar section contiguous with said transition section; said near-planar section having a cant angle measured from the normal to said wing and prescribed within limits to provide a desired drag reduction for minimal structural weight; said winglet projecting at an angle to the wing plane and having an upper surface and a lower surface, a leading edge and a trailing edge; said winglet leading edge and trailing edge being the fore and aft intersections of said upper and lower surfaces of said winglet; said wing and winglet upper and lower surfaces defining a solid having streamwise cross sections of airfoil shape; said airfoils having thickness camber and twist variations to provide optimum aerodynamic loading of said surfaces; said winglet leading edge and trailing edge having a varying streamwise spacing and varying monotonically within prescribed limits whereby the formation of vortices and areas of flow separation are prevented; said winglet transition section having prescribed curvature limits whereby practical achievement of surface aerodynamic loadings required for minimum drag are permitted.

이 특허를 인용한 특허 (72)

Guida, Nicholas R., Active winglet.
상세보기
Guida, Nicholas R., Active winglet.
상세보기
Edmond, George; Monaghan, Thomas, Aircraft lighting device.
상세보기
Zickuhr, Thomas Dean, Aircraft winglet.
상세보기
Speer, Stephen R., Aircraft winglet design having a compound curve profile.
상세보기
Speer, Stephen R., Aircraft winglet design having a compound curve profile.
상세보기
Barriety, Bernard, Aircraft with active control of the warping of its wings.
상세보기
Fort F. Felker, Aircraft with elliptical winglets.
상세보기
Dizdarevic, Faruk; Dizdarevic, Mithad, Airlifting surface division.
상세보기
Oleson, Richard A.; Aynsley, Richard M.; Jury, Dale R., Angled airfoil extension for fan blade.
상세보기
Alford, Jr., Lionel D.; Clayman, Jr., Gary J., Blended winglet.
상세보기
Herrick Larry L. ; Bays-Muchmore C. Byram ; Hoffman Michael S. ; LeGrand Louis L. ; Ogg Steven S. ; Paul ; Jr. Bernard P. ; Visser Kenneth D. ; Wells Stephen L., Blunt-leading-edge raked wingtips.
상세보기
Guida, Nicholas R., Controllable airflow modification device periodic load control.
상세보기
Sankrithi, Mithra M. K. V.; Frommer, Joshua B., Controllable winglets.
상세보기
McLean, James D., Efficient wing tip devices and methods for incorporating such devices into existing wing designs.
상세보기
Belady, Christian L, Enhanced performance fan with the use of winglets.
상세보기
Whitley, L. Blake; Hoofard, Richard K., Fan blades and associated blade tips.
상세보기
Whitley, L. Blake, Fan with fan blade mounting structure.
상세보기
Heller, Gerd; Buescher, Alexander; Theurich, Frank; Gibson, Tom; Karwin, Michael; Powell, Stephen, Fixed wing of an aircraft.
상세보기
Heller, Gerd; Buescher, Alexander; Theurich, Frank; Gibson, Tom; Karwin, Michael; Powell, Stephen, Fixed wing of an aircraft.
상세보기
Schweiger, Johannes, Fluid dynamically effective surface for minimizing induced resistance.
상세보기
McCarthy,Peter T., High efficiency tip vortex reversal and induced drag reduction.
상세보기
McCarthy,Peter T., High efficiency tip vortex reversal and induced drag reduction.
상세보기
Spencer, David; Hanks, Brent; Slawin, Kevin, Induced activation in dendritic cells.
상세보기
Stuhr, Victor K., Integrated wingtip extensions for jet transport aircraft and other types of aircraft.
상세보기
Houck, II,Ronald G., Lifting foil.
상세보기
Houck, II,Ronald G., Lifting foil.
상세보기
Witte, Philipp; Campbell, Jr., Darrell D.; Tung, Billy P.; Kleshchev, Fedor, Method for attaching a split winglet to a wing.
상세보기
Spencer, David M; Lapteva, Natalia, Methods and compositions for generating an immune response by inducing CD40 and pattern recognition receptors and adaptors thereof.
상세보기
Brenner, Malcolm K., Methods for inducing selective apoptosis.
상세보기
Guida, Nicholas R., Multiple controllable airflow modification devices.
상세보기
Guida, Nicholas R., Multiple controllable airflow modification devices.
상세보기
Buescher, Alexander; Karwin, Michael; Theurich, Frank, Non-planar wing tip device for wings of aircraft, and wing comprising such a wing tip device.
상세보기
Witte, Philipp; Stawski, Stanley Warren; Kleshchev, Fedor A.; Zarfos, Joshua William; Naidu, Parth R., One-piece composite bifurcated winglet.
상세보기
Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A., Performance-enhancing winglet system and method.
상세보기
Yechout, Thomas R., Rakelet.
상세보기
Wobben, Aloys, Rotor blade for a wind power plant.
상세보기
Wobben, Aloys, Rotor blade for a wind turbine.
상세보기
Gratzer, Louis B., Split blended winglet.
상세보기
Gratzer, Louis B., Split blended winglet.
상세보기
Gratzer, Louis B., Split blended winglet.
상세보기
Gratzer, Louis B., Split blended winglet.
상세보기
Gratzer, Louis B., Split blended winglet.
상세보기
Gratzer, Louis B., Split spiroid.
상세보기
Gratzer, Louis B., Split spiroid.
상세보기
Gratzer, Louis B., Split spiroid.
상세보기
Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A., Split winglet system.
상세보기
Loth,John L., Vorticity cancellation at trailing edge for induced drag elimination.
상세보기
Irving,Jan; Davies,Robert, Wing tip device.
상세보기
Wright, Christopher; Chu, James K.; Himisch, Jan, Wing tip device.
상세보기
Wright, Christopher; Chu, James K.; Himisch, Jan, Wing tip device.
상세보기
Wright, Christopher; Chu, James K.; Himisch, Jan, Wing tip device.
상세보기
Chaussee, Julien; Paumes, Camille; Wijker, Norman; Alexander, Stuart, Wing tip device attachment apparatus and method.
상세보기
Zaman, AbuMuhammed A., Wing tip device for an aircraft wing.
상세보기
Hackett, Kevin Christopher; Pyne, Clive Robert, Wing tip devices.
상세보기
Heller, Gerd; Maisel, Manfred; Kreuzer, Peter, Wing tip extension for a wing.
상세보기
Theurich, Frank; Himisch, Jan, Wing tip shape for a wing, in particular of aircraft.
상세보기
Theurich, Frank; Himisch, Jan, Wing tip shape for a wing, in particular of aircraft.
상세보기
Gratzer, Louis B., Wing tip with optimum loading.
상세보기
Garang, Philippe, Winglet.
상세보기
Witte, Philipp; Campbell, Jr., Darrell D.; Tung, Billy P.; Kleshchev, Fedor, Winglet attach fitting for attaching a split winglet to a wing.
상세보기
Koegler, Klaus Ulrich; Frere, Ariane; Herrig, Andreas, Winglet for a wind turbine rotor blade.
상세보기
Koegler, Klaus Ulrich; Frere, Ariane; Herrig, Andreas, Winglet for a wind turbine rotor blade.
상세보기
Koegler, Klaus Ulrich; Herr, Stefan; Vedula, Ramesh, Winglet for a wind turbine rotor blade.
상세보기
Nanukuttan, Biju; Wang, Jing; Anjuri, EswaraRao V S J, Winglet for wind turbine rotor blade.
상세보기
Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A., Winglet system.
상세보기
Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A., Winglet system and method.
상세보기
Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A., Winglet system having upper and lower winglet.
상세보기
Belady, Christian L., Winglet-enhanced fan.
상세보기
Malachowski, Adam P.; Chaney, Stephen R.; Ebner, Norman K.; LeDoux, Stephen T., Winglets with recessed surfaces, and associated systems and methods.
상세보기
Kelm, Roland, Wingtip extension for reducing wake vortices of aircraft.
상세보기
Edmond, George; Thompson, Robert L. J., Wingtip fin of an aircraft.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 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

연합인증

Blended winglet 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (72)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

이 특허와 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Blended winglet 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (72)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

이 특허와 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트