发明名称 |
TURBINE BUCKET ASSEMBLY AND TURBINE SYSTEM |
摘要 |
A turbine bucket assembly and turbine system are disclosed. The turbine bucket assembly includes a single-lobe joint having an integral platform, the joint having a first axial length; a segmented airfoil having a root segment extending radially outward from the platform and a tip segment coupled to the root segment, the tip segment having a second axial length, which is less than the first axial length; and a turbine wheel defining a receptacle with a geometry corresponding to the single-lobe joint and being coupled to the single-lobe joint. The tip segment includes a tip segment material, the root segment includes a root segment material, and the turbine wheel includes a turbine wheel material, the root segment material and the turbine wheel material having a lower heat resistance and a higher thermal expansion than the tip segment material. |
申请公布号 |
US2015345296(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
US201414290076 |
申请日期 |
2014.05.29 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
DAVIDSON Dwight Eric;McDUFFORD Michael David;POTTER Brian Denver;BALSONE Stephen Joseph;WASSYNGER Stephen Paul |
分类号 |
F01D5/14 |
主分类号 |
F01D5/14 |
代理机构 |
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代理人 |
|
主权项 |
1. A turbine bucket assembly comprising:
a single-lobe joint having an integral platform, the joint having a first axial length; a segmented airfoil having a root segment extending radially outward from the integral platform and a tip segment coupled to the root segment, the tip segment having a second axial length, the second axial length being less than the first axial length; and a turbine wheel defining a receptacle with a geometry corresponding to the single-lobe joint and being coupled to the single-lobe joint; wherein the tip segment includes a tip segment material, the root segment includes a root segment material, and the turbine wheel includes a turbine wheel material, the root segment material and the turbine wheel material having a lower heat resistance and a higher thermal expansion than the tip segment material. |
地址 |
Schenectady NY US |