[특허]Blended winglet

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

Blended winglet

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-023/06
미국특허분류(USC)	244/199.4; 244/130; 244/035.0R; 244/123.1
출원번호	UP-0481571 (2006-07-06)
등록번호	US-7644892 (2010-02-22)
발명자 / 주소	Alford, Jr., Lionel D. Clayman, Jr., Gary J.
대리인 / 주소	Bahret, William F.
인용정보	피인용 횟수 : 20 인용 특허 : 40

초록

A capped winglet comprising a helical portion having a smooth vertical curvature of 180°±approximately 20° from the plane of the unbounded end of a wing, and a generally planar cap contiguous with the helical portion of the winglet at the end of its curvature away from the wing, the cap having a free inboard end and a chord tapered toward the free end.

대표
청구항
▼

The invention claimed is: 1. A blended winglet having a free inboard end having an outer wing end with leading and trailing edges defining a plane, said winglet comprising a vertically curved, helical portion having a smooth vertical curvature of 180°±approximately 20° from the plane of the outer wing end, wherein said helical portion of said winglet has substantially parallel, aft-extending leading and trailing edges and a longitudinal axis substantially parallel to the plane of the wing adjacent the winglet. 2. The winglet of claim 1, further comprising a generally planar cap contiguous with said helical portion of said winglet, said cap extending in the inboard direction away from said helical portion and having a free inboard end. 3. The winglet of claim 2, wherein said helical portion has a leading edge defining a helix angle in the range of 20-50°. 4. The winglet of claim 2, wherein substantially all of said helical portion has a symmetrical airfoil shape with variable thickness along each chord line. 5. The winglet of claim 4, wherein said helical portion has a substantially constant radius of curvature in the range of 0.1-0.5 times the chord of the outer wing end at a point adjacent to said winglet. 6. The winglet of claim 5, wherein said winglet cap has a spanwise length in the range of 1-3 times said chord. 7. The winglet of claim 1, wherein said helical portion has a leading edge defining a helix angle in the range of 20-50°. 8. The winglet of claim 7, wherein said helix angle is approximately 30°. 9. The winglet of claim 1, wherein substantially all of said helical portion has a symmetrical airfoil shape with variable thickness along each chord line. 10. The winglet of claim 1, wherein said helical portion has a substantially constant radius of curvature in the range of 0.1-0.5 times the chord of the outer wing end at a point adjacent to said winglet. 11. The winglet of claim 10, wherein the radius of curvature of said helical portion is approximately one-fourth of the chord of the outer wing end at a point adjacent to said winglet. 12. The winglet of claim 1, wherein said winglet cap has a spanwise length in the range of 1-3 times the chord of the outer wing end at a point adjacent to said winglet. 13. A blended winglet for a wing having an outer wing end with leading and trailing edges defining a plane, said winglet comprising: a vertically curved helical portion having a smooth vertical curvature of 180°±approximately 20° from the plane of the outer wing end wherein said helical portion of said winglet has substantially parallel, aft-extending leading and trailing edges and a longitudinal axis substantially parallel to the plane of the wing adjacent the winglet; and a generally planar cap contiguous with said curved portion of said winglet at the end of its curvature away from the wing, said cap extending in the inboard direction away from said curved portion and having a free inboard end. 14. The winglet of claim 13, wherein said cap has a leading edge which is aft of the leading edge of the wing adjacent its wingtip, and wherein said cap is within approximately 20° of parallel to said plane of said wing end. 15. The winglet of claim 14, wherein said curved portion of said winglet is helical with a longitudinal axis substantially centerline parallel to the plane of the wing adjacent the winglet. 16. A blended winglet for a wing having an outer wing end with leading and trailing edges defining a plane, said winglet comprising: a vertically curved, helical portion having a smooth vertical curvature of 180°±approximately 20° from the plane of the outer wing end; and a generally planar cap contiguous with said helical portion of said winglet and above the wing, said cap having a free inboard end; wherein said helical portion has a centerline parallel to the plane of the wing adjacent the winglet, and a leading edge defining a helix angle in the range of 20-50°; wherein substantially all of said helical portion has a symmetrical airfoil shape; wherein said helical portion has a substantially constant radius of curvature in the range of 0.1-0.5 times the chord of the outer wing end at a point adjacent to said winglet; wherein said winglet cap has a length in the range of 1-3 times said chord; wherein said helical portion has a substantially constant chord; and wherein said cap has a leading edge with approximately 1-10° of aft sweep and a relatively unswept trailing edge. 17. The winglet of claim 16, wherein the vertical curvature of said helical portion of said winglet from the plane of the wing adjacent the wingtip is approximately 180°. 18. The winglet of claim 17, wherein said helix angle is approximately 30°. 19. The winglet of claim 18, wherein the radius of curvature of said helical portion is approximately one-fourth of the chord of the outer wing end at a point adjacent to said winglet. 20. The winglet of claim 19, wherein the length of said winglet cap is approximately twice said chord. 21. A wing with a winglet for beneficially redirecting and reusing spanwise flow, comprising: a wing having a leading edge, a trailing edge and an outer wing end; and a curved winglet attached on one end to said outer wing end and having a free second end, said winglet having a helical portion with a longitudinal axis substantially parallel to the angle of attack of the wing, said helical portion having substantially parallel, aft-extending leading and trailing edges extending 180°±approximately 20° about said axis. 22. The wing of claim 21, further comprising a generally planar winglet cap connected between said helical portion and said free end of said winglet, said cap extending in the inboard direction away from said helical portion. 23. The wing of claim 22, wherein said helical portion has parallel leading and trailing edges defining a helix angle of approximately 30°. 24. The wing of claim 23, wherein said wing and said winglet cap have a normal camber and substantially all of said helical portion of said winglet has a symmetrical airfoil shape with variable thickness along each chord line. 25. The wing of claim 24, wherein said helical portion has a substantially constant radius of curvature of approximately one-fourth the chord of said outer wing end at a point adjacent to said winglet. 26. The wing of claim 25, wherein said winglet cap has a spanwise length of approximately twice said chord. 27. The wing of claim 21, wherein said helical portion has parallel leading and trailing edges defining a helix angle of approximately 30°. 28. The wing of claim 21, wherein said wing and said winglet cap have a normal camber and substantially all of said helical portion of said winglet has a symmetrical airfoil shape with variable thickness along each chord line. 29. The wing of claim 21, wherein said helical portion has a substantially constant radius of curvature of approximately one-fourth the chord of said outer wing end at a point adjacent to said winglet. 30. A wing with a winglet for beneficially redirecting and reusing spanwise flow, comprising: a wing having a leading edge, a trailing edge and an outer wing end; a curved winglet attached on one end to said outer wing end and having a free second end, said winglet having a helical portion with a longitudinal axis substantially parallel to the angle of attack of the wing, said helical portion extending 180°±approximately 20° about said axis and having parallel leading and trailing edges defining a helix angle of approximately 30°, said helical portion having a substantially constant radius of curvature of approximately one-fourth the chord of said outer wing end at a point adjacent to said winglet; and a generally planar winglet cap connected between said helical portion and said free end of said winglet; wherein said wing and said winglet cap have a normal camber and substantially all of said helical portion of said winglet has a symmetrical airfoil shape; wherein said winglet cap has a length of approximately twice said chord; wherein said helical portion has a substantially constant chord; and wherein said winglet cap has a leading edge with approximately 1-10° of aft sweep and a relatively unswept trailing edge. 31. The wing of claim 30, wherein said wing has an aspect ratio in the range of 15:1 to 30:1. 32. The wing of claim 31, wherein the length of said wing from its root to its tip is in the range of 5-20 feet. 33. The wing of claim 32, wherein said wing has an airfoil shape selected from the group consisting of the RG15 family of airfoils and SD-2048 airfoils. 34. The wing of claim 33, wherein said winglet cap is substantially horizontal in the spanwise direction in normal flight.

이 특허에 인용된 특허 (40)

이 특허를 인용한 특허 피인용횟수: 20

이 특허와 함께 이용한 콘텐츠

[특허] Blended winglet

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

Blended winglet

초록

대표
청구항
▼

이 특허에 인용된 특허 (40)

이 특허를 인용한 특허 피인용횟수: 20

이 특허와 함께 이용한 콘텐츠

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

특허 상세정보

Blended winglet

초록

대표청구항 ▼

이 특허에 인용된 특허 (40)

이 특허를 인용한 특허 피인용횟수: 20

이 특허와 함께 이용한 콘텐츠

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

대표
청구항
▼