| 摘要 |
PROBLEM TO BE SOLVED: To provide a back plate structure of a gas turbine, suppressing arched thermal deformation to a turbine side even of a thin back plate without making the back plate thick and strong. SOLUTION: As the back plate structure of the gas turbine having a radial flow type turbine provided with the annular back plate 1 partitioning off compressed air from combustion gas, two or more ribs 4 radially extended from a radial inside toward a radial outside to a rotary shaft 16 of the turbine are projected at predetermined intervals in a peripheral direction on the compressed air side surface of the back plate. COPYRIGHT: (C)2005,JPO&NCIPI
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