Airfoil shape for a turbine bucket
    1.
    发明授权
    Airfoil shape for a turbine bucket 有权
    涡轮叶片的翼型

    公开(公告)号:US06739838B1

    公开(公告)日:2004-05-25

    申请号:US10388476

    申请日:2003-03-17

    IPC分类号: F01D514

    摘要: Third 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 to 1 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, Y and Z 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 ±0.060 inches in directions normal to the surface of the airfoil.

    摘要翻译: 第三级涡轮机叶片具有基本上符合X,Y和Z的笛卡尔坐标值的机翼型材,其中X和Y值为英寸,Z值为从0到1的可转换为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。 X,Y和Z距离可以作为相同常数或数字的函数来缩放,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处于±0.060英寸的包络内。

    Airfoil shape for a turbine bucket and turbine incorporating same
    2.
    发明授权
    Airfoil shape for a turbine bucket and turbine incorporating same 有权
    用于涡轮机叶片和涡轮机的翼型形成

    公开(公告)号:US07731483B2

    公开(公告)日:2010-06-08

    申请号:US11882373

    申请日:2007-08-01

    IPC分类号: F01D5/14

    摘要: Third 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 to 1 convertible to Z distances in inches by multiplying the Z′ values by the height of the airfoil in inches and adding the radius of the airfoil base. 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, Y and Z 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 envelope of +/−0.0.060 inches in directions normal to the surface of the airfoil.

    摘要翻译: 第三级涡轮机叶片具有基本上按照X表示的X,Y和Z'的笛卡尔坐标值的翼型,其中X和Y值以英寸计,Z'值是从0到1可转换为Z的无量纲值 通过将Z'值乘以翼型件的高度(英寸)并增加翼型件底座的半径,以英寸为单位的距离。 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。 X,Y和Z距离可以作为相同常数或数字的函数来缩放,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+/- 0.0.060英寸的包络内。

    Airfoil shape for a turbine bucket and turbine incorporating same
    3.
    发明申请
    Airfoil shape for a turbine bucket and turbine incorporating same 有权
    用于涡轮机叶片和涡轮机的翼型形成

    公开(公告)号:US20090035145A1

    公开(公告)日:2009-02-05

    申请号:US11882373

    申请日:2007-08-01

    IPC分类号: F01D5/14

    摘要: Third 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 to 1 convertible to Z distances in inches by multiplying the Z′ values by the height of the airfoil in inches and adding the radius of the airfoil base. 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, Y and Z 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 envelope of ±0.0.060 inches in directions normal to the surface of the airfoil.

    摘要翻译: 第三级涡轮机叶片具有基本上按照X表示的X,Y和Z'的笛卡尔坐标值的翼型,其中X和Y值以英寸计,Z'值是从0到1可转换为Z的无量纲值 通过将Z'值乘以翼型件的高度(英寸)并增加翼型件底座的半径,以英寸为单位的距离。 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。 X,Y和Z距离可以作为相同常数或数字的函数来缩放,以提供铲斗的按比例放大或缩小的翼型部分。 由X,Y和Z距离给出的额定翼型位于垂直于翼面表面方向的±0.0.060英寸的包络内。

    Airfoil shape for a turbine bucket
    4.
    发明授权
    Airfoil shape for a turbine bucket 有权
    涡轮叶片的翼型

    公开(公告)号:US06779977B2

    公开(公告)日:2004-08-24

    申请号:US10320655

    申请日:2002-12-17

    IPC分类号: F01D514

    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 to 1 convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. 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 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值为从0到1的可转换为Z距离的无量纲值 将Z值乘以翼型件的高度(英寸)。 X,Y和Z距离可以作为相同常数或数字的函数来缩放,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。

    Advanced firtree and broach slot forms for turbine stage 3 buckets and rotor wheels
    5.
    发明授权
    Advanced firtree and broach slot forms for turbine stage 3 buckets and rotor wheels 有权
    用于涡轮机3级铲斗和转子轮的先进的开槽和拉槽槽

    公开(公告)号:US08079817B2

    公开(公告)日:2011-12-20

    申请号:US10774399

    申请日:2004-02-10

    IPC分类号: F01D5/30

    摘要: A turbine bucket and wheelpost assembly reduces the number of buckets in the third stage of the turbine from ninety-two to ninety while reducing stresses at the assembly points of the buckets and wheelposts. The buckets and wheelposts are formed with complementary fillets and tangs that provide for the insertion of the bucket into the broach slot between two wheelposts. The angles of the fillets on both the bucket and wheelpost range from 50° to 59°. The upper surface of the wheelpost is scalloped to reduce weight and the tangs and fillets of both the bucket and wheelpost are formed from curved and straight surfaces to reduce stresses on the assembly.

    摘要翻译: 涡轮机桶和轮胎组件将涡轮机第三级的铲斗数量从九十二减少到九十,同时减少了在铲斗和轮轨的装配点处的应力。 铲斗和轮辋形成有互补的鱼片和脚趾,其用于将桶插入两个车轮柱之间的拉刀槽中。 铲斗和轮辋两侧的鱼角角度范围为50°至59°。 轮辋的上表面是扇形的,以减轻重量,铲斗和轮辋的柄脚和圆角由弯曲和直的表面形成,以减少组件上的应力。

    Advanced firtree and broach slot forms for turbine stage 1 and 2 buckets and rotor wheels
    7.
    发明授权
    Advanced firtree and broach slot forms for turbine stage 1 and 2 buckets and rotor wheels 有权
    用于涡轮机1级和2级铲斗和转子轮的先进的开槽和开槽槽形式

    公开(公告)号:US07905709B2

    公开(公告)日:2011-03-15

    申请号:US10774400

    申请日:2004-02-10

    IPC分类号: F01D5/30

    摘要: A turbine bucket and wheelpost assembly reduces the number of buckets in at least one of the stages of the turbine from 92 to 60 while reducing stresses at the assembly points of the buckets and wheelposts. The buckets and wheelposts being formed with complementary fillets and tangs that provide for the insertion of the bucket into the broach slot between two wheelposts. The angles of the tang surfaces on both the bucket and wheelpost range from 50° to 57°. The upper surface of the wheelpost is scalloped to reduce weight and the tangs and fillets of both the bucket and wheelpost are formed from curved and straight surfaces to reduce stresses on the assembly.

    摘要翻译: 涡轮机桶和轮辋组件将涡轮机的至少一个级中的铲斗数量从92减少到60,同时减小了在铲斗和轮辋的组装点处的应力。 铲斗和轮辋形成有互补的圆角和柄脚,其用于将铲斗插入两个车轮柱之间的拉刀槽中。 铲斗和车轮柱两侧的铲斗表面的角度范围为50°至57°。 轮辋的上表面是扇形的,以减轻重量,铲斗和轮辋的柄脚和圆角由弯曲和直的表面形成,以减少组件上的应力。