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Method of detecting failure of a servo-valve, and a servo-valve applying the method 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F16K-011/00
  • F15B-019/00
  • F15B-013/043
  • H02K-011/20
  • H02K-026/00
출원번호 US-0647924 (2012-10-09)
등록번호 US-9897116 (2018-02-20)
우선권정보 FR-11 59118 (2011-10-10)
발명자 / 주소
  • Ozzello, Guylain
출원인 / 주소
  • IN-LHC
대리인 / 주소
    Sughrue Mion, PLLC
인용정보 피인용 횟수 : 0  인용 특허 : 56

초록

A method of detecting failure of a two-stage servo-valve in which the power-controlling movable member is connected to the rotor of a torque motor of a pilot stage by mechanical feedback. A malfunction signal is generated in response to detecting that the rotor of the torque motor has engaged a stop

대표청구항

1. A method of detecting a failure of a servo-valve having a power stage with a movable member for distributing power and a pilot stage that includes a motor having a stationary portion and a movable magnetic flapper that occupies a position that is controlled in order to move the movable member for

이 특허에 인용된 특허 (56)

  1. Bartholomew Richard D. (Huntsville AL) Huffnagle Norman P. (Hopkins MN), Aircraft fiber optic control device.
  2. Price Richard P. (Parma Heights OH), Apparatus for dispensing fluid materials.
  3. Davis Brent M. (Beaverton OR) Beckett Frederick J. (Portland OR) Zandonatti Raymond A. (Beaverton OR), Bi-stable switch with pivoted armature.
  4. Lampeter Robert J. (Windsor CT) Duchesneau Jerome G. (Andover CT), Blade pitch change control system.
  5. Bolte Ekkehard (Aachen-Waldheim DEX) Ackermann Bernd (Aachen DEX) Bertram Leo (Stolberg DEX), Device for actuating a control member.
  6. Haynes Larry E. (Syracuse UT) Lucas Larry L. (Midvale UT), Direct drive servo valve.
  7. Zissimopoulos Nicholas (Schaumburg IL), Electrical indicator means for indicating the correct position of a casette in flow controlling.
  8. Peters Norman K. (South Bend IN), Electro-hydraulic fluid metering and control device.
  9. Taplin Lael B. (Union Lake MI), Electro-hydraulic servo valve system.
  10. Parker Dennis W. (Cheltenham GBX), Electro-hydraulic servo valves and electrical force motors suitable therefor.
  11. Jansen, Harvey B., Electrohydraulic servo valve.
  12. Koga Hirofumi (Kyoto JPX) Maenishi Kozo (Nagaokakyo JPX) Kashimoto Shuichi (Kyoto JPX) Honda Sueaki (Uji JPX) Tsuruyoshi Kenichi (Kusatsu JPX) Sano Takezo (Shiga JPX), Electromagnetic drive and polarized relay.
  13. Dottavio James J. ; Semeyn Mark Warner ; Bos Edward Albert ; Saunders Mark Alan, Electronic throttle control system with two-spring failsafe mechanism.
  14. Toot Peter D. (West Chester OH), Fail-fixed servovalve.
  15. Takahashi, Tamami; Mochizuki, Yoshihiro, Fluid control valve and plate with filter.
  16. Wilson Samuel L. (Newhall CA) Rodriguez Mario A. (Oxnard CA), Fluidic deflector jet servovalve.
  17. Wallace Albert M. (Westmont NJ), Fuel Metering valve.
  18. Tranovich Stephen J. (Saugus CA), High flow control valve.
  19. Meyer Endre A. (Birmingham MI) Kachman Robert D. (Troy MI), High frequency response servovalve with electrical position feedback element structure and method.
  20. Shelby,Jeffrey Dugan; Futa, Jr.,Paul W.; Arend,Matthew A., Latchable electrohydraulic servovalve.
  21. Perkey Russell C. (Granger IN), Low current electro-hydraulic metering module.
  22. Richter Robert F. (Rolling Hills Estates CA), Low friction servo valve.
  23. Spickard,Mark A., Maintaining the position of an electro-hydraulic servo valve controlled device upon loss of position command.
  24. Hoemke, Brian E.; Lawver, Brian K.; McLevige, Daniel J., Method to stabilize a nozzle flapper valve.
  25. Rodriguez,Mario Armando; Olson,Ronald; Lewis,Torin, Methods and apparatus for maintaining pressure gain in a servovalve assembly.
  26. Achmad,Muchlis; Johnson,Bernard, Methods and apparatus for mechanically adjusting a null offset in a torque motor of a servovalve.
  27. Achmad,Muchlis; Johnson,Bernard, Methods and apparatus for mechanically adjusting a null offset in a torque motor of a servovalve.
  28. Achmad,Muchlis, Methods and apparatus for splitting and directing a pressurized fluid jet within a servovalve.
  29. Wardle John W. (Roscoe IL) Leeson Plato J. (Rockford IL) Clay David G. (Rockford IL) Sievert Dale W. (Freeport IL), Multiplexed hydraulic control system with multiplexing valve having planar port array.
  30. Miller Glen E., Optically controlled actuator.
  31. Emo Stephen M. (Elkhart IN) Kinney Terrance R. (South Bend IN), Optically controlled transducer.
  32. Wayne R. Anderson, Pilot stage or pressure control pilot valve having a single armature/flapper.
  33. Rauch, Johannes; Rustler, Matthias, Pilot valve.
  34. Stoll Kurt (Lenzhalde 72 Esslingen DEX) Rudle Manfred (Thomasachkerweg 17 Esslingen-Berkheim DEX), Piston and cylinder device.
  35. Kalb Roland,DEX, Polarized relay.
  36. Blatter Albert (Highland MI) Davis Robert E. (Linden MI), Power transmission.
  37. Garnjost Kenneth D. (Orchard Park NY), Pressure equalization of multiple valves.
  38. Grancher, Raymond, Pressure-regulator servovalve with reduced leakage rate.
  39. Mason Richard K. (Granada Hills CA), Self monitoring redundant hydraeric control system.
  40. Oboodi,Reza; Piascik,James; Janosik,Michael C., Sensing apparatus with an integrated gasket on a beam component.
  41. Cheung Shek Michael, Servo-actuator with fail safe means.
  42. Ozzello, Guylain, Servo-valve pilot stage and a two-stage servo-valve including such a stage.
  43. Lembke Herbert (Lohr DEX), Servovalve.
  44. Shapiro Wayne D., Servovalve having a trapezoidal drive.
  45. Coakley James L. (Fillmore CA) Haydt ; deceased Richard J. (late of Los Angeles CA by Mette Haydt ; legal representative), Servovalve with integrated failure monitoring.
  46. Baumbick Robert J., Shape memory alloy actuator.
  47. Robert J. Baumbick, Shape memory alloy actuator.
  48. Henson, Nigel Herbert, Shut-down arrangement.
  49. Frederick Thomas R. (Amherst NY), Spool position indicator.
  50. Huling Don W. (Kent WA), Stepper motor actuated servovalve.
  51. Spickard, Mark A.; Hoemke, Brian E., Stepper motor driven proportional fuel metering valve.
  52. Hettinger Gerhard,DEX, Straight valve.
  53. Watanabe, Shinji, Throttle valve control device.
  54. Godon Gerrd (Rueil Malmaison FRX), Torque motor with hydraulic potentiometer for servo-distributor.
  55. Hattori, Masakazu, Valve unit.
  56. Taylor Charles L. (Binghamton NY), Wire guidance method and apparatus.
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