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특허 상세정보

Rotary actuator with internal brake mechanism

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01C-009/00   
미국특허분류(USC) 092/121; 092/026; 092/027
출원번호 US-0210610 (2008-09-15)
등록번호 US7930971 (2011-04-12)
발명자 / 주소
대리인 / 주소
    Nikolai & Mersereau, P.A.
인용정보 피인용 횟수 : 13  인용 특허 : 0
초록

A vane type hydraulic rotary actuator incorporates a fail-safe brake for preventing movement of the device's rotor relative to a housing in which the rotor is journaled. The brake has a spring-biased piston that is forced to a locked condition whenever applied hydraulic operating pressure acting on the vane falls below a predefined limit. The rotary actuator also incorporates an improved sealing arrangement that prevents egress of hydraulic fluid from a high pressure chamber on one side of the vane to a low pressure chamber on the opposite side of the va...

대표
청구항

The invention claimed is: 1. A rotary actuator comprising:(a) a housing defining a cylindrical bore;(b) a spool member rotatably mounted within the cylindrical bore in the housing,(c) a vane attached to the spool member and projecting radially outward therefrom;(d) a stop member attached to the housing within the bore and projecting radially inward toward the spool member, the stop member having first and second end surfaces circumferentially spaced from one another defining a gap through which the vane is free to travel, the stop member including first ...

이 특허를 인용한 특허 피인용횟수: 13

  1. Kopecek, Joseph Thomas. Locking rotary actuator. USP2017039605692.
  2. Jang, YoungKyu. Rotary actuator. USP2016109476433.
  3. Sobolewski, Pawel A.; Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.; Szulyk, Zenon P.. Rotary piston actuator anti-rotation configurations. USP2017049631645.
  4. Kim, Joseph H.; O Hara, Robert P.; Hydari, Shahbaz H.; Sobolewski, Pawel A.. Rotary piston type actuator. USP2016019234535.
  5. Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.; Sobolewski, Pawel A.. Rotary piston type actuator. USP20180710030679.
  6. Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.; Sobolewski, Pawel A.. Rotary piston type actuator with a central actuation assembly. USP2017079709078.
  7. Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.; Sobolewski, Pawel A.. Rotary piston type actuator with a central actuation assembly. USP2017119816537.
  8. Kim, Joseph H; O'Hara, Robert P; Hydari, Shahbaz H; Sobolewski, Pawel A.. Rotary piston type actuator with a central actuation assembly. USP2015109163648.
  9. Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.; Sobolewski, Pawel A.; Szulyk, Zenon P.. Rotary piston type actuator with hydraulic supply. USP2017039593696.
  10. Sobolewski, Pawel A.; Kim, Joseph H.; Szulyk, Zenon P.. Rotary piston type actuator with modular housing. USP2016109476434.
  11. Sobolewski, Pawel A.; Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.. Rotary piston type actuator with pin retention features. USP2015028955425.
  12. Kim, Joseph H.; O'Hara, Robert P.; Hydari, Shahbaz H.. Rotary vane actuator with fluid actuated mechanical lock. USP2018039915241.
  13. Soman, Charuhas M.; Walker, Steven P.; Klein, Michael K.; Standley, John A.. Systems, methods, and apparatus for rotary vane actuators. USP2018059957831.