• 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Local backup hydraulic actuator for aircraft control systems

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16D-031/02   
미국특허분류(USC) 060/405; 060/430; 060/468
출원번호 US-0761841 (2010-04-16)
등록번호 US-8434301 (2013-05-07)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Seed IP Law Group PLLC
인용정보 피인용 횟수 : 3  인용 특허 : 25

A backup system is provided that has a local electric motor and pump for some or all of hydraulic actuators. A local backup hydraulic actuator has two power sources, hydraulic as primary and electrical as backup. During normal operation, the hydraulic actuator receives pressurized fluid from a hydraulic system and the fluid flow to the chambers is controlled by a servo valve. If the hydraulic system fails, the electronic controller detects the failure by observing the signal indicative of the pressure from the pressure sensor, and the controller powers t...


1. A hydraulic control system comprising: a hydraulic actuator having a cylinder and piston assembly;first and second fluid lines coupled to the hydraulic actuator;a high pressure fluid line;a low pressure fluid line;a central pressure source coupled to the high pressure fluid line to place high pressure on the first and second fluid lines;a servo valve positioned between the central pressure source and the hydraulic actuator and being controllable to selectively connect the first and second fluid lines to the high pressure fluid line and the low pressur...

이 특허에 인용된 특허 (25)

  1. Jones, Kelly T.. Aircraft control surface drive system and associated methods. USP2004106799739.
  2. Krantz, Richard M.. Augmenting flight control surface actuation system and method. USP2004026685138.
  3. Renfro Kenneth W. (Macon IL) Guhl Richard E. (Decatur IL). Automatic control circuit for an electrically powered hydraulic pump. USP1976033940931.
  4. Cartmell Daniel H. ; Borgens David B. ; Buus Henning ; Duffy Keith S. ; Gast Mark E. ; Huynh Neal V. ; Lochtie David W. ; Piersbacher Clifton A.. Autopilot automatic disconnect system for fly-by-wire aircraft. USP1999025868359.
  5. Ho,Yuhang. Electro-hydraulic actuator system. USP2007037191593.
  6. Van Den Bossche, Dominique Alain; Ortega, Jean-Marc Fran.cedilla.ois Michel; Casse, Christophe Lionel Rene. Electronically controlled hydraulic actuating system. USP2003096625982.
  7. Deter Burkhard (Ottobrunn DEX). Emergency supply system for an aircraft control system. USP1988074754940.
  8. Cline, Paul J.; Huynh, Neal V.; Inderhees, Leonard J.; Orgun, Munior; Smith, Mark H.; Oleson, Alexander Craig. Enhanced rudder control system. USP2005086923405.
  9. Chenoweth Charles C. (Renton WA) Takats Imre J. (Bellevue WA). Fly-by-wire lateral control system. USP1984094472780.
  10. Hamrick Joseph T. (Roanoke VA) Rose Leslie C. (Rocky Mount VA). Heat pump operated by wind or other power means. USP1981124304103.
  11. Stolle Klaus (Altenstadt DEX). Hydraulic actuating apparatus for opening and closing a vehicle cover with auxiliary manual hydraulic pump. USP1994085335926.
  12. Zakula Daniel Brian. Hydraulic charge boost system for a gantry crane. USP1999085937646.
  13. Archung Ralph (Issaquah WA). Hydraulic power supplies. USP1992035100082.
  14. Favre Christian (Tournefeuille FRX) Van den Bossche Dominique (Rieumes FRX). Hydrostatic operating mode hydraulic actuator preferably for backup operation, and flight control system comprising it. USP1993015181380.
  15. Miller Wendell E. (Warsaw IN). Load responsive system with synthetic signal. USP1976073971216.
  16. Raymond Eugene T. (Kent WA). Load-adaptive hybrid actuator system and method for actuating control surfaces. USP1991125074495.
  17. Matsui, Gen. Local backup hydraulic actuator for aircraft control systems. USP2011017870726.
  18. Chenoweth Charles C. (Bellevue WA) Shen Jan-son (Bellevue WA). Method and apparatus for cooling and replenishing aircraft hydraulic actuators. USP1992055109672.
  19. Buus Henning (Woodinville WA). Multiaxis redundant fly-by-wire primary flight control system. USP1996025493497.
  20. Takats Imre J. (Bellevue WA) Chenoweth Charles C. (Bellevue WA). Multiple-voting fault detection system for flight critical actuation control systems. USP1993125274554.
  21. Gautier Jean-Pierre,FRX ; Ortega Jean-Marc,FRX. Process and device for the control of the rudder of an aircraft. USP2001036206329.
  22. Cartmell Daniel H. ; Borgens David B. ; Buus Henning ; Duffy Keith S. ; Gast Mark E. ; Huynh Neal V. ; Lochtie David W. ; Piersbacher Clifton A.. System for backdrive of flight deck controls during autopilot operation. USP1998085797564.
  23. Takats Imre J. (Bellevue WA) Chenoweth Charles C. (Renton WA). Two/one (2/1) fail operational electrohydraulic servoactuator. USP1982084345191.
  24. Miller Wayne R. (Dubuque IA). Vehicle emergency steering system. USP1982084345660.
  25. Tanaka,Teruaki; Kamimura,Toshio. Wing driving apparatus. USP2007027175133.