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특허 상세정보

Propeller surface area treatments for sound dampening

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-027/467    B64C-011/00    B64C-027/473    B64C-039/02    B64C-011/20    B64C-011/26    B64C-027/20   
출원번호 US-0975236 (2015-12-18)
등록번호 US-10259574 (2019-04-16)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Athorus, PLLC
인용정보 피인용 횟수 : 0  인용 특허 : 19

Sounds are generated by an aerial vehicle during operation. For example, the motors and propellers of an aerial vehicle generate sounds during operation. Disclosed are systems, methods, and apparatus for actively adjusting the position of one or more propeller blade treatments of a propeller blade of an aerial vehicle during operation of the aerial vehicle. For example, the propeller blade may have one or more propeller blade treatments that may be adjusted between two or more positions. Based on the position of the propeller blade treatments, the airflo...


1. An aerial vehicle comprising: a motor configured to rotate a propeller such that the propeller generates a lifting force;the propeller including: a hub that is coupled to the motor so that the motor can rotate the propeller;a propeller blade extending from the hub, the propeller blade including: a leading edge;a tip;a trailing edge;a surface area that extends between the hub and the tip and between the leading edge and the trailing edge, the surface area having an upper side and a lower side;a sound dampening material affixed to at least a portion of ...

이 특허에 인용된 특허 (19)

  1. Benoit Roland (Lake Park FL) Beverly Eugene M. (Palm Beach Gardens FL) Love Charles M. (Jupiter FL) Mack Gregory J. (Palm Beach Gardens FL). Abrasive blade tip. USP1996095551840.
  2. Ireland, Peter. Application of elastomeric vortex generators. USP2014108870124.
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  4. Wake Brian E. ; Lorber Peter F. ; Landgrebe Anton J.. Half-plow vortex generators for rotorcraft blades for reducing blade-vortex interaction noise. USP1998075785282.
  5. Kay Bruce F. (Milford CT). Honeycomb spliced multilayer foam core aircraft composite parts and method for making same. USP1987084687691.
  6. Occhipinti Anthony C. (1353 Lake Ave. Apt. 5 Metairie LA 70005). Hydrofoils and airfoils. USP1996075540406.
  7. Betzina, Mark D.; Nguyen, Khanh Q.. Method and system for active noise control of tiltrotor aircraft. USP2003126671590.
  8. Hall Edward J. ; Meade Joseph P.. Method for reducing turboprop noise. USP1999105961067.
  9. Bonnet, Laurent. Noise reducer for rotor blade in wind turbine. USP2013048414261.
  10. Drobietz, Roger; Koegler, Klaus Ulrich; Kinzie, Kevin Wayne; Fisher, Murray; Livingston, Jamie. Noise reducer for rotor blade in wind turbine. USP2013098523515.
  11. Liu John ; McVeigh Michael A. ; Mayer Robert J.. Pivoting spanwise-flow redirector for tiltrotor aircraft. USP2000126161800.
  12. Ali, Amr. Propfan assembly. USP2013048425191.
  13. Narramore, Jimmy Charles. Retractable vortex generator. USP2011027878457.
  14. Herr, Stefan; Tobin, James Robert. Rotatable aerodynamic surface features for wind turbine rotor blades. USP2017099752559.
  15. Bonnet, Laurent. Rotor blade for a wind turbine having aerodynamic feature elements. USP2009107604461.
  16. Dewar, Stephen W.; Watts, Phillip; Fish, Frank Eliot. Turbine and compressor employing tubercle leading edge rotor design. USP2013098535008.
  17. Martin G Rose GB; Alec G Dodd GB. Turbine blade and manufacture thereof. USP2002036358013.
  18. Tafoya,Samuel B. Vibration-reducing and noise-reducing spoiler for helicopter rotors, aircraft wings, propellers, and turbine blades. USP2008087413408.
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