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특허 상세정보

Variable airfoil assembly

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-003/48    B64C-009/32   
미국특허분류(USC) 244/219 ; 244/113 ; 244/201
출원번호 US-0316561 (1981-10-30)
발명자 / 주소
인용정보 피인용 횟수 : 12  인용 특허 : 1
초록

The present variable airfoil assembly has a fixed airfoil member with a shallow recess in the top in which an adjustable airfoil member is seated snugly, when lowered, to present a convex top surface which merges smoothly with the top surface on the fixed airfoil member in front and behind. When the adjustable airfoil member is raised, the fixed airfoil member presents a top surface below it which is continuous for most of its extent to minimize air turbulence. Reinforcing ribs on the adjustable airfoil member extend down through longitudinal gaps in the...

대표
청구항

In a variable airfoil assembly having: a fixed airfoil member with a bottom wall, a convex nose extending upward and curving rearward from the front end of said bottom wall, and a rear top wall segment spaced behind said nose and inclined downward and rearward toward the rear end of said bottom wall; an adjustable airfoil member mounted for adjustment between a lowered position on top of said fixed airfoil member between said nose and said rear top wall segment and raised positions projecting up beyond the top of said fixed airfoil member; and means acti...