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특허 상세정보

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Variable camber control of airfoil

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64L-003/44   
미국특허분류(USC) 244/219 ; 60/527 ; 244/75R ; 244/1725
출원번호 US-0763163 (1991-09-20)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 49  인용 특허 : 0
초록

An airfoil camber control apparatus utilizes a cable of shape memory alloy affixed at its ends to a front interior portion of the airfoil. A tensioning system is connected to a rear interior portion of the airfoil and to the cable. When electrical current is applied to the cable to heat it, it returns to its remembered, shorter length, thereby applying tension to the tensioning system to alter the position of the rear portion of the airfoil relative to the front portion.

대표
청구항
▼

An apparatus for altering the curvature of a curved surface of a member wherein the member has first and second laterally extending substantially parallel spaced walls and spaced side portions, said apparatus comprising: an elongated means of a shape memory alloy having first and second ends, said first end being connected to the first wall of the member at one side thereof, and said second end being connected to the first wall of the member at a second side thereof, tension means connected to the second wall of the member, said tension means including m...

이 특허를 인용한 특허 피인용횟수: 49

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  21. Webster, John R. Gas turbine engine exhaust nozzle. USP2009087578132.
  22. Birch,Nigel T; Webster,John R. Gas turbine engine exhaust nozzle having a noise attenuation device driven by shape memory material actuators. USP2006027000378.
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  49. Johnson, Edward D.; Kress, Jr., Howard C.. Yaw control system and method. USP2010017644887.

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