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특허 상세정보

Drag-reducing component

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-027/00    B64C-021/10   
미국특허분류(USC) 244/54 ; 244/130 ; 244/200
출원번호 US-0071524 (1979-08-31)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 0

A drag-reducing structure is provided on a pylon that suspends a wing-mounted engine. The structure reduces drag by preventing ambient airflow, in a region between the wing, pylon, and engine, from accelerating to supersonic velocities and causing shock waves resulting in excessive drag. In one embodiment, the structure is a broad fairing on the inboard vertical surface of the pylon. In another embodiment, the structure is a tapered bump mounted at the inboard intersection between the wing and pylon.


In an aircraft of the type having a wing-mounted gas turbine engine attached to a pylon that extends downward and forward of said wing, said pylon presenting an essentially narrow and aerodynamic forward profile with broad outwardly curved inboard and outboard surfaces forming tapered forward and aft ends on said pylon, an improvement comprising: a modified nonaxisymmetric pylon contour, wherein the inboard surface of said pylon is provided with a broadly curved outward fairing added to existing pylon contour for the purpose of preventing surrounding amb...

이 특허를 인용한 특허 피인용횟수: 13

  1. Peter May DE. Aircraft airfoil with close-mounted engine and leading edge high lift system. USP2002046364254.
  2. Fol, Thierry; Jimenez, Philippe; Namer, Arnaud. Aircraft comprising a central fairing that adjusts the pressure on the wing structures by means of local geometric deformations. USP2012058177170.
  3. Fol, Thierry; Defos, Marjorie. Aircraft comprising a device for reducing the induced drag. USP2012058167248.
  4. Lyons, Neil John. Aircraft fairing. USP2015059027883.
  5. Bonnaud, Cyril; Dantin, Stephanie; Defos, Marjorie; Fol, Thierry. Airplane engine pylon comprising at least one protruding element to generate a vortex of the airflow. USP2012058186619.
  6. Bodard, Guillaume; Henry, Cyprien; Jodet, Norman; Vuillemin, Alexandre Alfred Gaston. Attachment pylon for a turbine engine. USP2018049938901.
  7. Patterson ; Jr. James C. (Newport News VA). Compression pylon. USP1989094867394.
  8. Fujino Michimasa,JPX ; Kawamura Yuichi,JPX. Method for reducing wave resistance in airplane. USP2001106308913.
  9. Kumata Hirotaka,JPX ; Katahira Kiyoshi,JPX ; Wakita Shuichi,JPX ; Nishikawa Toshihiro,JPX. Method for reducing wave resistance in airplane. USP2000086102328.
  10. Goldhammer Mark I. (Bellevue WA). Nacelle and wing assembly. USP1989034815680.
  11. Dusa Donald J. (Cincinnati OH) Wagenknecht Conrad D. (West Chester OH). Nacelle installation. USP1984084466587.
  12. Bengelink Ronald L. (Renton WA) Wickemeyer Robert H. (Redmond WA). Nacelle-pylon configuration for an aircraft and method of using the same. USP1984124489905.
  13. Vanderhoeven Antonius J. (Bellevue WA). Shock inducing pod for causing flow separation. USP1987024643376.