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    • 4. 发明公开
    • 터빈 버킷 및 터빈
    • 涡轮鼓和涡轮
    • KR1020040025589A
    • 2004-03-24
    • KR1020030064025
    • 2003-09-16
    • 제너럴 일렉트릭 캄파니
    • 휴먼척데이비드존비엘레크크레이그알렌브리팅햄로버트알란발쿰제임스타이슨존스앤드류이세
    • F01D5/14
    • F01D5/14F01D5/141F05D2220/3212F05D2240/301F05D2250/20F05D2250/70F05D2250/74Y10S416/02
    • PURPOSE: A turbine bucket and a turbine are provided to have a bucket airfoil profile obtaining the performance improved of the turbine that secures necessary efficiency and load conditions. CONSTITUTION: A turbine bucket(22) has a bucket airfoil shape in an envelope within +-0.160 inches in a vertical direction to any airfoil surface location. An airfoil(40) has a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth. The Z is a non-dimensional value along a bucket centerline coincident with a radius from a turbine axis of rotation convertible to a Z distance in inches from the turbine axis by multiplying the Z value by a height of the airfoil and adding the product to a root radius of the bucket. And the X and Y are distances in inches defining the airfoil profile at each distance Z. The profiles at the Z distances is joined smoothly with one another to form a complete airfoil shape.
    • 目的:提供涡轮机叶轮和涡轮机以具有铲斗翼型轮廓以获得改进的涡轮机性能,从而确保必要的效率和载荷条件。 构成:涡轮机桶(22)在与任何翼型件表面位置的垂直方向上的外壳内具有在+ -0.160英寸内的桶形翼型。 机翼(40)具有基本上根据所阐述的X,Y和Z的笛卡尔坐标值的标称轮廓。 Z是沿着铲斗中心线的一个无量纲值,其与通过将Z值乘以翼型的高度并将该乘积加到一个涡轮机的涡轮机轴线的涡轮机轴线的半径可转换成距离涡轮机轴线的Z距离(英寸) 桶的根半径。 并且X和Y是在每个距离Z处限定翼型轮廓的距离。Z距离处的轮廓彼此平滑地连接以形成完整的翼型形状。