发明公开
EP2384965A2 Back-Up Featherer 审中-公开
后备人员

  • 专利标题: Back-Up Featherer
  • 专利标题(中): 后备人员
  • 申请号: EP11162477.1
    申请日: 2011-04-14
  • 公开(公告)号: EP2384965A2
    公开(公告)日: 2011-11-09
  • 发明人: Morgan, Antony
  • 申请人: Rolls-Royce plc
  • 申请人地址: 65 Buckingham Gate London SW1E 6AT GB
  • 专利权人: Rolls-Royce plc
  • 当前专利权人: Rolls-Royce plc
  • 当前专利权人地址: 65 Buckingham Gate London SW1E 6AT GB
  • 代理机构: White, Kevin Andrew
  • 优先权: GB1007567 20100506
  • 主分类号: B64C11/32
  • IPC分类号: B64C11/32
Back-Up Featherer
摘要:
A back-up featherer is provided for an engine arrangement. The engine arrangement has a main hydraulic actuator (63b) which operates a pitch change mechanism to angularly displace propellers (62a) of a propeller assembly of the engine arrangement, the pitch change mechanism and main hydraulic actuator (63b) rotating with the propeller assembly. The back-up featherer has one or more brakes (80) located on a static structure of the engine arrangement. The back-up featherer further has one or more input gears (82) rotatable about respective axes, which axes rotate with the propeller assembly. The input gears (82) are operatively connected to the brakes (80) such that, when the brakes (80) are activated, the input gears (82) rotate about their axes. The back-up featherer further has one or more load application members (81) which rotate with the propeller assembly and which are operatively connected to the input gears (82) such that, when the input gears (82) rotate about their axes, the load application members (81) bear against respective engagement portions of the pitch change mechanism. This applies a load to the pitch change mechanism which results in angular displacement of the propellers.
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