发明名称 |
COOLED TURBINE GUIDE VANE OR BLADE FOR A TURBOMACHINE |
摘要 |
A turbine airfoil for a turbomachine is provided. The airfoil includes a suction side wall and a pressure side wall bordering an airfoil cavity, which receives a cooling fluid for cooling the airfoil. The suction side wall includes one or more protrusions extending inside the cavity. The number of protrusions on the suction side may be higher than the number of protrusions on the pressure side. The density of protrusions on the suction side may be higher than the density of protrusions on the pressure side and/or the surface of protrusions on the suction side may be larger than the surface of protrusions on the pressure side, so that heat transfer from the suction side to the cooling fluid is higher compared to heat transfer from the pressure side to the cooling fluid during operation of the turbomachine. |
申请公布号 |
US2015016961(A1) |
申请公布日期 |
2015.01.15 |
申请号 |
US201214352106 |
申请日期 |
2012.10.02 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
Shepherd Andrew |
分类号 |
F01D5/18;F01D9/06 |
主分类号 |
F01D5/18 |
代理机构 |
|
代理人 |
|
主权项 |
1. A turbine airfoil comprising a blade or a vane for a turbomachine, the airfoil comprising
a suction side wall and a pressure side wall bordering an airfoil cavity, which is adapted to be flowed through by a cooling fluid for cooling of the side walls and therefore of the airfoil, wherein the suction side wall comprises at least one protrusion extending therefrom inside the airfoil cavity, wherein the number of the at least one protrusion on the suction side wall is higher than the number of protrusions on the pressure side wall, the density of the at least one protrusion on the suction side wall is higher than the density of protrusions on the pressure side wall and/or the surface of the at least one protrusion on the suction side wall is larger than the surface of protrusions on the pressure side wall, so that the heat transfer from the suction side wall to the cooling fluid is higher compared to the heat transfer from the pressure side wall to the cooling fluid during the operation of the turbomachine such that an excess of the heat transfer from the suction side wall is generated. |
地址 |
Munich DE |