Sensor ice shield
    1.
    发明授权
    Sensor ice shield 失效
    传感器冰盾

    公开(公告)号:US5752674A

    公开(公告)日:1998-05-19

    申请号:US700955

    申请日:1996-08-21

    摘要: A system is provided for reducing ice mass on an aircraft engine. A compressor inlet temperature and pressure sensor measures total temperature and total pressure at the inlet to the engine compressor. An ice shield is provided, wherein a plurality of wedge portions has multiple protrusions for promoting ice formation in multiple locations. The ice shield is separable from the sensor with which it interfaces. The ice shield comprises straight angle wedge shapes and curved surfaces to separate and minimize ice accretion in desired locations. The mass of each resultant ice formation is reduced to a size that the compressor inlet blades can withstand without deformation.

    摘要翻译: 提供了一种用于减少飞机发动机上的冰块的系统。 压缩机入口温度和压力传感器测量发动机压缩机入口处的总温度和总压力。 提供了一种防冰罩,其中多个楔形部分具有多个用于促进多个位置处的冰的突起。 冰盾与传感器分离,与之接触。 冰盾包括直角楔形和弯曲表面,以分离和最小化所需位置的积冰。 每个所得冰层的质量减小到压缩机入口叶片能够承受而不变形的尺寸。

    Propeller pitch control
    2.
    发明授权
    Propeller pitch control 失效
    螺旋桨桨距控制

    公开(公告)号:US5213471A

    公开(公告)日:1993-05-25

    申请号:US576884

    申请日:1990-09-04

    IPC分类号: B64C11/32 F01D7/02

    摘要: The invention concerns a system for controlling an aircraft propeller. A hydraulic motor controls pitch of the propeller blades. The propeller blades are characterized by the absence of feather-inducing counterweights. An overspeed governor senses when propeller speed exceeds a limit, and, in response, assumes control of the hydraulic motor and drives the blades toward a coarsened pitch position, which reduces the propeller speed. In another form of the invention, a mechanical brake can override the hydraulic motor and mechanically retard a rotating gear, which causes the propeller blades to move toward a coarsened pitch.

    摘要翻译: 本发明涉及一种用于控制飞行器螺旋桨的系统。 液压马达控制螺旋桨叶片的间距。 螺旋桨叶片的特征在于没有羽毛诱导配重。 超速调速器检测螺旋桨速度是否超过极限,并且作为响应,控制液压马达并驱动叶片朝向粗化桨距位置,这降低了螺旋桨速度。 在本发明的另一种形式中,机械式制动器可以超越液压马达并且机械地延迟旋转的齿轮,这使得螺旋桨叶片朝着粗化间距移动。