| 摘要 |
PROBLEM TO BE SOLVED: To reduce air intake noise of an intake silencer and prevent the intake silencer from being contaminated without degrading intake performance and maintainability, with a simple configuration.SOLUTION: An intake silencer cover 40 comprises: an outer circumferential plate 41 shaped to cover an intake silencer 23 connected to an air intake of an exhaust gas turbine supercharger from above and to open downward, and spaced apart from an outer circumferential surface 23a of the intake silencer 23 to surround at least an upper half of the intake silencer 23; a front plate 42 fixed to an end portion of the outer circumferential plate 41, which portion is farther from a compressor and covering a surface 31a of the intake silencer 23, which surface is on an opposite side to the compressor; a rear plate 43 fixed to an end portion of the outer circumferential plate 41, which portion is closer to the compressor and covering a surface 32a of the intake silencer 23, which surface is closer to the compressor; and a sound absorber 53 attached to an inner circumferential surface of the outer circumferential plate 41. The sound absorber 53 is held between an inner surface of the outer circumferential plate 41 and a porous plate 54 detachably fixed to the inner surface of the outer circumferential plate 41. |
