| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise of a low frequency.SOLUTION: In an exhaust diffuser 1, exhaust gas G flows in the mutual axial direction between an outer cylinder 2 and an inner cylinder 3 installed in the outer cylinder 2, and the inner cylinder 3 is formed shorter than the outer cylinder 2 on a downstream side of exhaust gas G. The exhaust diffuser includes a guide member 6 formed in a cylindrical shape with an axis C of the outer cylinder 2 and the inner cylinder 3 as the center, inside the outer cylinder 2 and in a range of an outer diameter equal to or less than an outer diameter of the inner cylinder 3, forming a radial directional opening part 6a opened outside in the radial direction between a downstream side end part of the inner cylinder 3 and itself, forming an axial directional opening part 6b so as to be opened on the downstream side in the axial direction, and constituting a flow passage R for communicating the radial directional opening part 6a with the axial directional opening part 6b in the cylinder. |
