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External wrap of composite flexbeam 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B64C-027/38
출원번호 US-0888611 (1986-07-23)
발명자 / 주소
  • Beno Edward A. (Stratford CT) Noehren William L. (Trumbull CT)
출원인 / 주소
  • United Technologies Corporation (Hartford CT 02)
인용정보 피인용 횟수 : 25  인용 특허 : 11

초록

An external composite wrap (34) of composite fibers (36) is added to the flap flexure portion (14) of a flexbeam (10), which is composed of predominantly unidirectional fibers (32) extending along the length of the flexbeam in (vertically) stacked layers (31). The fibers of the external wrap are dis

대표청구항

A flexbeam (10) having a hub portion (12), a flap flexure portion (14) outboard of the hub portion, a lag-torsion flexure portion (16) outboard of the flap flexure portion, and a blade attachment portion (18) outboard of the lag-torsion portion, and having core fibers (32) of composite material exte

이 특허에 인용된 특허 (11)

  1. Noehren William Lawrence (Huntington CT) Hibyan Edward Stanley (Trumbull CT), Composite helicopter spar and means to alleviate stress concentration.
  2. Sanders Roy (Langport GB2) Redstone Michael J. (Malton GB2), Connecting element and helicopter rotor incorporating same.
  3. Ferris Donald L. (Newtown CT) Ogle Peter C. (Woodbridge CT), Cross beam rotor.
  4. Rybicki ; Robert Charles, Cross beam rotor.
  5. Laird George William (Greenville DE), Flexure having pitch flap coupling.
  6. Head, Robert E.; Banerjee, Debashis, Helicopter tail rotor of the elastomerically-mounted composite flexbeam type.
  7. Fradenburgh Evan A. (Fairfield CT), Hingeless helicopter rotor with elastic gimbal hub.
  8. Buchs Wolfgang (Valley DEX) Nowak Franz (Taufkirchen DEX) Woerndle Rudolf (Brunnthal DEX), Hingeless rotor, especially for a helicopter.
  9. Cheney ; Jr. Marvin C. (Glastonbury CT), Matched stiffness rotor flexbeam and blade system.
  10. Metzger Robert W. (Hurst TX) Neathery William D. (Fort Worth TX) Reyes Peter A. (Watauga TX) Tisdale Patrick R. (Bedford TX) Covington Cecil E. (Hurst TX) Broekhuizen Willem (Arlington TX), Soft inplane bearingless helicopter rotor.
  11. Ferris Donald Leroy (Newtown CT) Noehren William Lawrence (Huntington CT), Torque reacting means for the hubs of cross beam rotors.

이 특허를 인용한 특허 (25)

  1. Buesing, Moritz, Beam for a rotorcraft rotor and rotorcraft rotor.
  2. Kizhakkepat, Amarjit; Armstrong, Levi; Baldwin, Tyler; Oldroyd, Paul; Southerland, Michael J., Broad goods composite yoke for rotor system.
  3. Foskey, Christopher; Stamps, Frank B.; McIntyre, Joel; Miller, Gary, Composite flexure for tiltrotor rotor system.
  4. Maresh, Andrew; Stamps, Frank Bradley; Tisdale, Patrick Ryan; Wardlaw, Robert Patrick; Haldeman, Andrew; Sutton, Drew Alan, Composite rotor system using two race track style cantilevered yokes.
  5. Maresh, Andrew; Stamps, Frank Bradley; Tisdale, Patrick Ryan; Wardlaw, Robert; Haldeman, Andrew; Sutton, Drew, Composite rotor system using two race track style cantilevered yokes.
  6. Calhoun, Dennis V., Controlling thermally induced beam twist.
  7. Meyer, Leon M.; Lay, Richard C.; Schmaling, David N., Elastomeric bearing system motion limiter.
  8. Kopanski, Kris; Cowles, Devon; Bruno, David E.; Miner, Frederick J.; Hein, Benjamin Reed, Flexbeam hinge for helicopter blade active trailing edge flap.
  9. Thomas, Justin; Nussenblatt, Eric Lucien; Parsons, Eric S.; Casey, Ryan Thomas; Hunter, David H., Flexbeam to rotor blade interface.
  10. Sutton, Drew; Stamps, Frank B.; Tisdale, Patrick Ryan; Oldroyd, Paul, Flexing clevis arrangement bolted joint attachment for flexible rotor hub with high offset and high flapping.
  11. Mathon, Richard; Foussard, Olivier; Marchal, Yann; Varin, Franck Bernard Leon, Method for producing a propeller blade from a composite material.
  12. Foskey, Christopher; Stamps, Frank B., Offset stacked yoke hub for tiltrotor aircraft.
  13. Schmaling David N., Optimized composite flexbeam for helicopter rotors.
  14. Byrnes Francis E. (White Plains NY) Federici Francis D. (Bridgeport CT) Schmaling David N. (Oxford CT), Optimized composite flexbeam for helicopter tail rotors.
  15. Kuntze-Fechner, Gerald; Ortner, Martin, Partly cruciform flexbeam and method of manufacturing such a flexbeam.
  16. Rene Legendre Philippe Maurice,FRX ; Christian Denante Marc Pierre,FRX, Process for manufacturing a composite component capable of flexing and twisting.
  17. Robert Arnold Brack ; Ernest Alfred Powell ; Dharam Jithender Reddy ; Ronald Dean Rice ; Patrick Ryan Tisdale, Protective edge members for composite flexures.
  18. Kismarton, Max U., Rotor apparatus and methods for vertical lift aircraft.
  19. Bansemir Horst,DEX ; Hausmann Gerhard,DEX, Rotor blade connection.
  20. Bauer Karl,DEX ; Kuntze-Fechner Gerald,DEX ; Hausmann Gerhard,DEX ; Enenkl Bernhard,DEX, Rotor blade for a bearingless rotor of a helicopter.
  21. Carter ; Jr. Jay W., Rotor for rotary wing aircraft.
  22. Vertel, John F.; Narayanan Nampy, Sreenivas; Smelcer, Matthew J., Rotor head for a vertical takeoff and landing aircraft.
  23. Bauer Karl,DEX ; Kuntze-Fechner Gerald,DEX, Two-piece rotor blade for a bearingless rotor of a helicopter.
  24. Mancher, Joshua; Kristie, Lewis L.; Cappelli, Marcus D., Vibration absorbing device for flexbeams.
  25. Mancher, Joshua; Kristie, Lewis L.; Cappelli, Marcus D., Vibration absorbing device for flexbeams.
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