| 摘要 |
PURPOSE:To obtain an improved cooling effect by providing a cooling water channel communicating with a cooling air channel disposed within a cooled blade of a gas turbine. CONSTITUTION:A cooled blade 1 of a gas turbine is provided therein with a cooling water channel 11 communicating with a cooling air channel 16 disposed therein at its returning portion 10 located near the blade root side. Cooling water is supplied flashingly into the cooling air channel 16 to be mixed with the cooling air flowing therein so as to cool the cooling air of increased temperature. With this arrangement, using a relatively small amount of cooling water, the cooled blade 1 can be cooled with larger effect. |
