| 摘要 |
PURPOSE:To improve durability and reliability of a combustor by installing a circumferential groove, into which a front end of a flat spring is allowed to enter to prevent erosion and cutting of the plate spring. CONSTITUTION:A gap g1 is kept between an inner cylinder 4 of a combustor and a transition piece 3. A plate spring 13 is assembled in a state with some initial load and is placed at the outerside of a groove 22 made on the inner cylinder 4 of the combustor. When the combustion gas flows in the inner cylinder of the combustor, the size of the gap becomes small as g2 due to the expansion of the cylinder by heat and then the plate spring 13 is compressed radically but a fulcrum moves in the direction of the arrow 23 as the spring is fixed at the rear end 11 of the inner cylinder 4 and the fulcrum drops into the circumferential groove 22. As a result, the fulcrum 21 of the plate spring 13 escapes from the direction of compressive load and the compressive load on the plate spring 13 becomes small. |
