公开(公告)号：US20050063821A1

公开(公告)日：2005-03-24

申请号：US10668028

申请日：2003-09-22

申请人： Alexander Luniewski ,  Michael Hamlin ,  Robert Cantelupe ,  Raymond Overbaugh

发明人： Alexander Luniewski ,  Michael Hamlin ,  Robert Cantelupe ,  Raymond Overbaugh

IPC分类号： F01D25/24 ,  F01D25/26 ,  F01D25/30 ,  F03B1/00

CPC分类号： F01D25/24 ,  F01D25/30 ,  F05D2230/64 ,  F05D2250/14 ,  F05D2250/24 ,  Y10T29/49236

摘要： An exhaust hood for a turbine includes a shell casing, an external support structure, conical corner plates, and a butterfly plate. The shell casing includes an inner surface and an outer surface. The external support structure is coupled to the shell casing outer surface, and provides structural support to said shell casing. The butterfly plate is coupled to the shell casing inner surface for channeling flow into the exhaust hood and subsequently into the condenser. The butterfly plate has a substantially elliptically-shaped cross-sectional profile that facilitates reducing flow separation losses of steam flowing therethrough into the exhaust hood.

公开(公告)号：US20050036890A1

公开(公告)日：2005-02-17

申请号：US10639473

申请日：2003-08-13

申请人： Steven Tomberg ,  Marvin Neeley

发明人： Steven Tomberg ,  Marvin Neeley

IPC分类号： F01D11/08 ,  F01D5/14 ,  F01D5/16 ,  B63H1/16

CPC分类号： F01D5/225 ,  F01D5/147 ,  F05D2250/14 ,  F05D2250/16 ,  F05D2250/17 ,  F05D2250/70 ,  F05D2260/94 ,  Y02T50/673 ,  Y10S415/914

摘要： A turbine bucket airfoil has a conical fillet about the intersection of the airfoil tip and tip shroud having a nominal profile in accordance with coordinate values of X and Y, offset 1, offset 2 and Rho set forth in Table I. The shape parameters of offset 1, offset 2 and Rho define the configuration of the fillet at the specified X and Y locations about the fillet to provide a fillet configuration accommodating high localized stresses. The fillet shape may be parabolic, elliptical or hyperbolic as a function of the value of the shape parameter ratio of D1 D1 + D2 at each X, Y location where D1 is a distance between an intermediate point along a chord between edge points determined by offsets O2 and O2 and a shoulder point on the fillet surface and D2 is a distance between the shoulder point and an apex location at the intersection of the airfoil tip and tip shroud.

摘要翻译： 涡轮叶片翼型件根据X和Y，偏移1，偏移2和Rho的坐标值，具有围绕翼型尖端和尖端护罩的相交处的圆锥形圆角，其具有标称轮廓。偏移量的形状参数 1，偏移2和Rho定义圆角上指定的X和Y位置处的圆角的配置，以提供适应高局部应力的圆角配置。 作为 1