公开(公告)号：US4121088A

公开(公告)日：1978-10-17

申请号：US733048

申请日：1976-10-18

申请人： John A. Doremus ,  William R. Kirkpatrick

发明人： John A. Doremus ,  William R. Kirkpatrick

IPC分类号： B64D15/12 ,  B64D15/16 ,  B64D15/22 ,  G01P5/00 ,  G01P5/16 ,  G01P13/02 ,  H05B3/14 ,  H05B3/02 ,  G01W1/10 ,  H01C7/02

CPC分类号： G01P13/025 ,  B64D15/16 ,  B64D15/22 ,  G01P5/00 ,  G01P5/16

摘要： A positive temperature coefficient (PTC) resistance heater assembly is used in combination with an angle of attack vane to provide automatic means for maintaining the temperature of the vane at a level which will de-ice the vane. The heater assembly is embedded in a recess in the vane and is made up of a plurality of individual PTC resistors connected electrically and mechanically in parallel by flexible electrically conductive perforated strips which permit the individual resistors to move relative to each the other under thermal stress and which also permit the encapsulation of the resistors in a suitable thermally conductive, electrically oinsulative material that is sufficiently resilient to permit the individual resistors to expand and contract relative to the vane during use.

摘要翻译： 正温度系数（PTC）电阻加热器组件与攻角一起使用，以提供用于将叶片的温度维持在将使叶片除冰的水平的自动装置。 加热器组件嵌入在叶片中的凹槽中，并且由多个单独的PTC电阻器组成，多个单独的PTC电阻器通过柔性导电穿孔板电路和机械并联连接，允许各个电阻器在热应力下相对于彼此移动， 这也允许将电阻器封装在适当的导热，电绝缘材料中，其具有足够的弹性，以允许各个电阻器在使用期间相对于叶片膨胀和收缩。