发明名称 |
Turbine nozzle having non-axisymmetric endwall contour (EWC) |
摘要 |
Various embodiments of the invention include turbine nozzles and systems employing such nozzles. Various particular embodiments include a turbine nozzle having: an airfoil having: a suction side; a pressure side opposing the suction side; a leading edge spanning between the pressure side and the suction side; and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side; and at least one endwall connected with the airfoil along the suction side, pressure side, trailing edge and the leading edge, the at least one endwall including a non-axisymmetric contour proximate a junction between the endwall and the leading edge of the airfoil. |
申请公布号 |
US9376927(B2) |
申请公布日期 |
2016.06.28 |
申请号 |
US201314060996 |
申请日期 |
2013.10.23 |
申请人 |
General Electric Company |
发明人 |
Stein Alexander;Brown Joe Timothy;Meenakshisundaram Ravichandran |
分类号 |
F01D5/14;F01D9/04 |
主分类号 |
F01D5/14 |
代理机构 |
Hoffman Warnick LLC |
代理人 |
Cusick Ernest G.;Hoffman Warnick LLC |
主权项 |
1. A turbine nozzle comprising:
an airfoil having: a suction side; a pressure side opposing the suction side; a leading edge spanning between the pressure side and the suction side; and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side; and at least one endwall connected with the airfoil along the suction side, pressure side, trailing edge and the leading edge, the at least one endwall including a non-axisymmetric contour proximate a junction between the endwall and the leading edge of the airfoil, wherein the non-axisymmetric contour includes a first thickened area having an apex at approximately 20% axial chord upstream of the leading edge, wherein the non-axisymmetric contour further includes a second thickened area having an apex at approximately 15-20% of an axial chord length of the leading edge. |
地址 |
Schenectady NY US |