AIRFOIL SHAPE FOR A TURBINE BUCKET
    2.
    发明申请
    AIRFOIL SHAPE FOR A TURBINE BUCKET 有权
    用于涡轮马桶的气翼形状

    公开(公告)号:US20050079061A1

    公开(公告)日:2005-04-14

    申请号:US10681144

    申请日:2003-10-09

    IPC分类号: F01D5/06 F01D5/14 B63H1/26

    摘要: Second stage turbine buckets have airfoil 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 0.05 to 0.95 convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape. The X and Y distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelop of ±0.160 inches in directions normal to the surface of the airfoil.

    摘要翻译: 第二级涡轮机叶片具有基本上符合X,Y和Z的笛卡尔坐标值的翼型轮廓,其中X和Y值为英寸,Z值为0.05至0.95,可转换为Z距离的无量纲值 将Z值乘以翼型件的高度(英寸)。 X和Y值是通过平滑连续弧连接时定义每个距离Z处的翼型轮廓部分的距离。每个距离Z处的轮廓部分彼此平滑地连接以形成完整的翼型形状。 作为相同常数或数字的函数,X和Y距离可以是可缩放的,以提供用于铲斗的放大或缩小的翼型部分。 由X,Y和Z距离给出的额定翼型在垂直于翼面表面的方向上在±0.160英寸的范围内。