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1. 发明授权

US5670757A Exhaust silencer for engines and generators 失效
标题翻译：用于发动机和发电机的排气消音器
公开(公告)号：US5670757A
公开(公告)日：1997-09-23
申请号：US760655
申请日：1996-11-27
申请人： Frank E. Harris
发明人： Frank E. Harris
IPC分类号： F01N1/08 , F01N1/10
CPC分类号： F01N1/088 , F01N1/083 , F01N1/089 , F01N1/10 , F01N2470/16 , F01N2470/18 , F01N2490/16
摘要： An exhaust silencer for receiving exhaust gasses from an engine includes inner and outer cylindrical walls and top and bottom closure plates. The inner wall and the top and bottom closure plates define a central collection chamber. Baffles extend alternately from the inner cylindrical wall towards the outer cylindrical wall and from the outer cylindrical wall towards the inner cylindrical wall, so as to define an undulating path for exhaust gasses as they pass from the central collection chamber to an outlet. Sound insulating material is attached to each of the upstream surfaces of the baffles, to the outer surface of the central collection chamber, to the inner surface of the outer cylindrical wall, and to the inner surfaces of each of the top and bottom closure plates. The sound insulating material is protected by expanded metal. The baffles are attached at their vertical edges to the expanded metal and not to the actual inner and outer cylindrical walls themselves. Transmission of sound to the outer cylindrical wall is thus markedly reduced.
摘要翻译：用于从发动机接收废气的排气消音器包括内圆柱形壁和外圆柱形壁以及顶部和底部封闭板。内壁和顶部和底部封闭板限定了中央收集室。挡板从内圆柱体壁朝向外圆柱形壁和从外圆柱形壁向内圆柱形壁交替延伸，以便当废气从中央收集腔经过出口时限定起伏的路径。隔音材料连接到挡板的每个上游表面，中央收集室的外表面，连接到外圆柱形壁的内表面以及每个顶盖和底盖的内表面。隔音材料由多孔金属保护。挡板在其垂直边缘连接到扩展的金属，而不是连接到实际的内圆柱体和外圆柱壁。因此，显着地减少了对外圆筒壁的声音传播。

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