| 摘要 |
PURPOSE:To prevent the generation of thermal stress and heighten cooling performance by fixing good heat conductive material particles on an inner cylinder air side surface to make it coarse. CONSTITUTION:Air compressed by a compressor is supplied to a combustor part through a compressor diffuser 6, air allowed to flow in the circumference of a tail cylinder 2 is allowed to flow between a guide cylinder 5 and an inner cylinder body 1 to flow into the inside of the inner cylinder body through an air hole. In the inside of the inner cylinder a fuel supplied from a combustion nozzle 3 is mixed with the air to burn so as to produce high temperature combustion gas. The combustion gas is introduced in a turbine through the inside of the tail cylinder 2 to be exhausted after expansion. The inner cylinder body 1, and the tail cylinder 2 are heated because high temperature combustion gas is allowed to flow in their insides, but cooled with the use of air flowing on their periphery, a condition to fix cooling promotion bodies on the inner cylindrical main body 1 is made for a coarse surface body 7, and a condition to fix them on the tail cylinder 2 is made for a coarse surface body 8. A cooling effect by the air allowed to flow between the guide cylinder 5 and the inner cylinder body 1 can be heightened by the improvement of heat transfer coefficient with the use of the coarse surface bodies 7, 8. |
