Vibration damper assembly for the buckets of a turbine
    12.
    发明授权
    Vibration damper assembly for the buckets of a turbine 失效
    用于涡轮机桶的振动阻尼器组件

    公开(公告)号:US06851932B2

    公开(公告)日:2005-02-08

    申请号:US10436202

    申请日:2003-05-13

    CPC classification number: F01D5/26 F01D5/22 F05D2260/96 Y10S416/50

    Abstract: A damper pin is disposed between adjacent buckets of a turbine rotor. A first bucket has circumferentially extending supports defining a pair of axially spaced surfaces on which a damper pin rests in a cold condition of the turbine. The adjacent bucket is undercut adjacent its platform to provide an angled surface overlying a generally correspondingly angled surface of the damper pin. The damper pin fits slightly loose within the recess and, upon turbine rotation at speed, the angled surfaces of the damper pin and recess cooperate to bias the damper pin against the first bucket whereby the damper pin engages both buckets and dissipates vibratory action.

    Abstract translation: 减震器销布置在涡轮转子的相邻铲斗之间。 第一铲斗具有周向延伸的支撑件,其限定一对轴向间隔开的表面,阻尼器销在涡轮机的冷态中。 相邻的铲斗在其平台附近被切削,以提供覆盖阻尼销的大致相应的倾斜表面的倾斜表面。 减震销在凹槽内略微松动,并且在涡轮机转速时,减震销和凹槽的成角度表面配合以将阻尼器销偏压到第一铲斗上,由此阻尼器销接合两个铲斗并消散振动作用。

    Internal core profile for a turbine bucket
    13.
    发明授权
    Internal core profile for a turbine bucket 失效
    涡轮机桶的内部芯轮廓

    公开(公告)号:US06761535B1

    公开(公告)日:2004-07-13

    申请号:US10423883

    申请日:2003-04-28

    Abstract: Second stage turbine buckets have internal core profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table I wherein X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by the height of the bucket in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define internal core profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete internal core profile. The X, Y and Z distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down internal core profile. The nominal internal core profile given by the X, Y and Z distances lies within an envelope of ±0.039 inches in directions normal to any internal core surface location.

    Abstract translation: 第二级涡轮机桶具有基本上符合X,Y和Z的笛卡尔坐标值的内部芯轮廓,其中X和Y值以英寸计,Z值是从0到1可转换为Z距离的无量纲值 以英寸乘以Z值乘以桶的高度(英寸)。 X和Y值是当通过光滑连续弧连接时,在每个距离Z处限定内部芯轮廓部分的距离。每个距离Z处的轮廓部分彼此平滑地连接以形成完整的内部芯轮廓。 X,Y和Z距离可以是可扩展的,作为相同常数或数字的函数,以提供按比例放大或缩小的内核配置文件。 由X,Y和Z距离给出的标称内芯型材在垂直于任何内芯表面位置的方向上在±0.039英寸的包络内。

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