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특허 상세정보

Tail fan apparatus and method for low speed yaw control of a rotorcraft

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-027/82    B64C-027/02   
미국특허분류(USC) 244/017.21; 244/008; 244/017.11
출원번호 US-0282749 (2011-10-27)
등록번호 US-8939395 (2015-01-27)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Pate Baird, PLLC
인용정보 피인용 횟수 : 1  인용 특허 : 20

Apparatus and methods for controlling yaw of a rotorcraft in the event of one or both of low airspeed and engine failure are disclosed. A yaw propulsion provides a yaw moment at low speeds. The yaw propulsion device may be an air jet or a fan. A pneumatic fan may be driven by compressed air released into a channel surrounding an outer portion of the fan. The fan may be driven by hydraulic power. Power for the yaw propulsion device and other system may be provided by a hydraulic pump and/or generator engaging the rotor. Low speed yaw control may be provid...


1. A rotorcraft comprising: an airframe;a rotor rotatably mounted to the airframe and rotatable about an axis of rotation;a vertical stabilizer mounted to the airframe offset from the axis of rotation;an emergency power supply mounted to the airframe;a fan mounted to the vertical stabilizer; anda controller selectively coupling the emergency power supply to the fan effective to drive the fan in forward and reverse directions;wherein the emergency power supply includes an air reservoir containing compressed air;wherein the air reservoir is in fluid commun...

이 특허에 인용된 특허 (20)

  1. Marze, Henri-James. Aircraft provided with a silent shrouded rotor. USP2011067959105.
  2. Allongue Marc (Marseille FRX). Anti-torque system for helicopters. USP1993085240205.
  3. Brody, David E.; Gaffey, Troy M.; Rixen, Frank; Murray, Richard F.. Coaxial rotor aircraft. USP2012058167233.
  4. Aubry Jacques A. (Bouches-du-Rhne FRX) Mondet Jean J. (Bouches-du-Rhne FRX). Combined bearing device for a rotorcraft rotor and a rotor equipped with such a bearing device. USP1989034815937.
  5. Kebrle, John M.; Andrews, III, James R.; Daw, Justin; Hurdle, Jim; Sherrill, Paul; Narramore, Jimmy C.; Xue, Sidney; Hollimon, Charles; Smith, Dudley; Docker, Bryce; Brieger, John T.. Counter-torque device for a helicopter. USP2012108286908.
  6. Leibach ; Heinrich. Device for control of an aircraft. USP1978074099671.
  7. Kirk, Charles T.; Moore, Grover L.; Hodder, legal representative, Virginia L.. Emergency anti-torque thruster system. USP201106E042446.
  8. Kirk,Charles T.; Hodder, legal representative,Virginia L.; Moore, deceased,Grover L.. Emergency anti-torque thruster system. USP2006047032860.
  9. Munski Michael S. (44052 Fine St. Lancaster CA 93536). Helicopter antitorque auxiliary propulsion system. USP1987044660785.
  10. Logan Andrew H. (Rancho Palos Verdes CA) Moore Richard E. (Los Angeles CA). Helicopter antitorque system using circulation control. USP1980044200252.
  11. Balkus, Jr., Carl E.. Helicopter auxiliary anti-torque system. USP2012068196855.
  12. Wilson John C. (Newport News VA) Crowell Cynthia A. (APO AE NY) Kelley Henry L. (Newport News VA). Helicopter low-speed yaw control. USP1993055209430.
  13. Daniel W. Banks ; Henry L. Kelley. Helicopter tail boom with venting for alleviation and control of tail boom aerodynamic loads and method thereof. USP2002036352220.
  14. Daggett ; Jr. Myron L. (Broomall PA) Douglas Leon L. (Wynnewood PA). Helicopter yaw and propulsion mechanism. USP1976053957226.
  15. Osberger Helmut (A 3491 Strass bei Krems Niederosterreich OE). Helicopters safety drive. USP1977094046335.
  16. De Roche,Mark Stephen. Hybrid drive powered lift platform. USP2007067231997.
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