公开(公告)号：KR100848195B1

公开(公告)日：2008-07-24

申请号：KR1020070078511

申请日：2007-08-06

Applicant: 대기포레시아(주)

Inventor： 김회전

IPC: F01N1/02 ,  F01N1/00 ,  F01N13/08

Abstract: A structure for reducing noise in an exhaust pipe is provided to substitute for a conventional muffler by stacking branch pipes having the shape of hemispheres of different radius and thereby reducing noise of various frequency bands, thus increasing space utilization, and to reduce manufacturing costs due to the reduction of the number of parts, and to increase durability against external shocks. An exhaust system includes an exhaust pipe(10) which is a gas discharge path extending from an engine to the outside. A structure for reducing noise in the exhaust system is constructed so that branch pipes(20,30,40) having the shape of hemispheres of different radiuses are provided on one end of the exhaust pipe in such a way as to be stacked. The plurality of branch pipes is provided on the exhaust pipe, thus reducing noise of various frequency bands. The length of the branch pipes provided on the exhaust pipe is increased toward the stacking direction.

Abstract translation: 提供了一种用于减小排气管中噪声的结构，以通过堆叠具有不同半径的半球形状的分支管来代替常规的消音器，从而降低各种频带的噪声，从而增加空间利用率，并降低由于 减少零件数量，并增加对外部冲击的耐久性。 排气系统包括排气管（10），其是从发动机向外部延伸的气体排出路径。 用于降低排气系统中的噪声的结构被构造成使得具有不同半径的半球形状的支管（20,30,40）以堆叠的方式设置在排气管的一端上。 多个分支管设置在排气管上，从而降低各种频带的噪声。 设置在排气管上的分支管的长度朝向层叠方向增加。