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특허 상세정보

Blended winglet

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-005/08   
미국특허분류(USC) 244/91 ; 244/199
출원번호 US-0011770 (1993-02-01)
발명자 / 주소
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...

대표
청구항

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 wingle...

이 특허를 인용한 특허 피인용횟수: 72

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