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Electromechanical apparatus for varying blade of variable-pitch fan blades

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F04D-029/36   
미국특허분류(USC) 416/147 ; 416/159 ; 416/162 ; 318/722
출원번호 US-0949295 (1992-09-22)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 67  인용 특허 : 0
초록
▼

Blade pitch of variable pitch blades is changed by an actuator having first and second ac machines. The first ac machine is excited with ac power to apply a motoring torque to a control shaft of the actuator, thereby causing blade pitch to change in one direction. The second ac machine is excited with appropriate power to apply a braking torque to the control shaft, thereby causing blade pitch to change in an opposite direction. When the second ac machine is an induction machine, dc excitation will brake the control shaft. When the second ac machine is a...

대표
청구항
▼

Apparatus for torquing a control shaft of a blade pitch actuator for variable-pitch blades, comprising: means for providing a first excitation when blade pitch is to be changed in one direction and for providing a second excitation when blade pitch is to be changed in an opposite direction; a first ac machine for applying a motoring torque to said control shaft in response to said first excitation; and a second ac machine for applying a braking torque to said control shaft in response to said second excitation. A method of torquing a control shaft of a b...

이 특허를 인용한 특허 피인용횟수: 67

  1. Malkin, Peter; Trainer, David R. Aircraft electrical actuator arrangement. USP2014048698444.
  2. Edwards, Huw L.; Smith, Alexander C; Apsley, Judith M.; Manolopoulos, Charalampos. Aircraft electrical network. USP20181110131441.
  3. June, Michael S.; Matteson, Jason A.; Steinke, Mark E.. Airflow from a blower with one or more adjustable guide vanes that are affixed to the blower at one or more pivot points located in an outlet of the blower. USP2014028657558.
  4. June, Michael S.; Matteson, Jason A.; Steinke, Mark E.. Airflow from a blower with one or more adjustable guide vanes that are affixed to the blower at one or more pivot points located in an outlet of the blower. USP2014028641361.
  5. Morgan, Antony. Back-up featherer. USP2014068753084.
  6. Swift, Andrew; Morgan, Antony; Simms, Paul. Back-up featherer. USP2014068757977.
  7. Guey, Zen-Jey; Tung, Chien-Chiang; Chang, Yun-Yuan. Blade pitch driving apparatus for wind driven generator. USP2012118303256.
  8. Wingett, Paul; Lane, Glenn; Potter, Cal. Compact, electromagnetically braked actuator assembly. USP2010087777385.
  9. Perkinson, Robert H.; Arel, David V.. Controllable pitch propeller with electrical power generation. USP2012048162611.
  10. Pabst, Otto; Gadrino, Franco. Core plate stack assembly for permanent magnet rotor or rotating machines. USP2012118310122.
  11. Bywaters,Garrett; Danforth,William; Bevington,Christopher; Jesse,Stowell; Costin,Daniel. Direct drive wind turbine. USP2007027183665.
  12. Bywaters,Garrett; Danforth,William; Bevington,Christopher; Stowell,Jesse; Costin,Daniel. Direct drive wind turbine. USP2006077075192.
  13. De Wergifosse, Eric; Duval, Cedric. Electric power supply for apparatuses supported by the rotor of an aircraft engine. USP2016109458729.
  14. Robinson, James S.. Fan blade pitch change assembly. USP2012078231345.
  15. Pabst, Otto; Kleinlercher, Michael. Generator/electric motor, in particular for wind power plants, cable controlled plants or for hydraulic plants. USP2010107808149.
  16. Shelley, Rudolph Allen. Hybrid gas turbine propulsion system. USP2015129212625.
  17. Kari Appa. Jet assisted hybrid wind turbine system. USP2002126492743.
  18. Kaessner, Thomas; Fasolo, Alessandro. Method and apparatus for activating an electric machine, and electric machine. USP2014088810347.
  19. Kaessner, Thomas; Fasolo, Alessandro. Method and apparatus for activating an electric machine, and electric machine. USP2013018358189.
  20. Hughes, Arthur C.. Method and apparatus for self-contained variable pitch and/or constant speed propeller including provisions for feathering and reverse pitch operation. USP2004016672835.
  21. William Edward Vanderbeck ; Gregory Weston Terpay ; Ka-Shu Lee ; George Gustave Zipfel ; Victor G. Mishkevich ; Thomas Edward Smith, Jr.. Permanent magnet phase-control motor. USP2002116476534.
  22. Morgan, Antony. Pitch control mechanism. USP2014068757976.
  23. Swift, Andrew; Morgan, Antony. Pitch control mechanism. USP2014068757975.
  24. Girard Francis (Viroflay FRX). Pitch variation control device for the blades of a turbomachine rotor and method of operating the device. USP1997015595474.
  25. Ritchey, Jonathan. Polyphasic multi-coil electric device. USP2012018106563.
  26. Ritchey, Jonathan Gale. Polyphasic multi-coil electric device. USP2017069685827.
  27. Ritchey, Jonathan Gale. Polyphasic multi-coil electric device. USP2012078212445.
  28. Ritchey, Jonathan Gale. Polyphasic multi-coil electric device. USP2013128614529.
  29. Ritchey, Jonathan. Polyphasic multi-coil generator. USP2017029584056.
  30. Potter, Calvin C.; Hanlon, Casey; Wingett, Paul T.. Power drive unit electromagnetic latch. USP2010127852183.
  31. Fujiwara, Hideki. Power generating apparatus. USP2015069054560.
  32. Cawthorne, Simon; Spooner, Edward. Power generator for a hydro turbine. USP2017029583986.
  33. Perkinson, Robert H. Propeller in-hub power generation and control. USP2018059973058.
  34. Wheeler J. Lance. Propeller with variable rate of pitch change. USP1999085931637.
  35. Eyraud, Jean-Louis. System for varying the angle of attack of the blades of an aircraft turbine engine propeller, using a brushless electric motor. USP2015038979496.
  36. Ettridge, David Graham; Jia, Xiaochuan. Turbofan engine with generator. USP20190310240477.
  37. Sankrithi, Mithra M. K. V.; Seidel, Gerhard E.; Prichard, Alan K.; Moore, Matthew. Ultra-efficient propulsor with an augmentor fan circumscribing a turbofan. USP2017099759160.
  38. Sankrithi, Mithra M. K. V.; Seidel, Gerhard E.; Prichard, Alan K.; Moore, Matthew. Ultra-efficient propulsor with an augmentor fan circumscribing a turbofan. USP2014048689538.
  39. Robinson, James S.. Variable pitch radiator fan control system. USP2011098020655.
  40. Robinson, James S.. Variable pitch radiator fan control system. USP2012048162086.
  41. Rozmus,John J.. Wind generator system using attractive magnetic forces to reduce the load on the bearings. USP2008067391128.
  42. Stockner, Gunther. Wind power electricity generating system and relative control method. USP2013048410623.
  43. Toshiyuki Umemoto JP; Yuji Ikeda JP; Ryoji Nagatani JP; Satoru Kotoh JP. Wind power generating device. USP2002116483199.
  44. Casazza,Matteo; Mair,Andreas; Pabst,Otto. Wind power generator. USP2007047205678.
  45. Casazza, Matteo; Mair, Andreas; Pabst, Otto. Wind power generator and bearing structure therefor. USP2010037687932.
  46. Casazza,Matteo; Mair,Andreas; Pabst,Otto. Wind power generator and bearing structure therefor. USP2008067385305.
  47. Pabst, Otto; Folie, Georg; Casazza, Matteo; Bustreo, Paolo; Gebhard, Peter. Wind power generator equipped with a cooling system. USP2016049312741.
  48. Pabst, Otto; Folie, Georg; Casazza, Matteo; Bustreo, Paolo; Gebhard, Peter. Wind power generator equipped with a cooling system. USP2013078492919.
  49. Wobben, Aloys. Wind power installation with multiple blade adjusting devices. USP2005096939103.
  50. Casazza, Matteo; Martin, Schwarz. Wind power system for generating electric energy. USP2014028659867.
  51. Pabst, Otto; Casazza, Matteo; Gelmini, Emmanuele. Wind power turbine. USP2012028120198.
  52. Gelmini, Emmanuele. Wind power turbine and method of removing a bearing from a wind power turbine. USP2015018937397.
  53. Casazza, Matteo. Wind power turbine blade packing and packing method. USP2012098272822.
  54. Gelmini, Emmanuele. Wind power turbine electric generator and wind power turbine equipped with an electric generator. USP2015038975770.
  55. Casazza, Matteo; Folie, Georg. Wind power turbine electric generator cooling system and method and wind power turbine comprising such a cooling system. USP2013098541902.
  56. Casazza, Matteo. Wind power turbine for generating electric energy. USP2013128618689.
  57. Casazza, Matteo; Kassner, Thomas. Wind power turbine for producing electric energy. USP2014038669685.
  58. Kassner, Thomas. Wind power turbine including a cable bundle guide device. USP2012098274170.
  59. Vihriala, Harri; Kassner, Thomas. Wind power turbine with a cooling system. USP2012118319362.
  60. Casazza, Matteo; Pabst, Otto; Fasolo, Alessandro. Wind turbine. USP2015049006918.
  61. Miyake,Hisao; Shibata,Masaaki; Tozaki,Yasuyoshi; Shoda,Katsuhiko. Wind turbine generator. USP2007087259472.
  62. Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.. Wind turbine having a direct-drive drivetrain. USP2011027891941.
  63. Casazza, Matteo; Folie, Georg. Wind turbine rotary electric machine. USP2015018937398.
  64. Pabst, Otto; Casazza, Matteo. Wind turbine rotary electric machine. USP2015028957555.
  65. Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.. Wind turbine/generator set and method of making same. USP2013068454309.
  66. Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.. Wind turbine/generator set having a stator cooling system located between stator frame and active coils. USP2012118308430.
  67. Casazza,Matteo; Mair,Andreas; Pabst,Otto. wind power generator including blade arrangement. USP2008067385306.

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