JPS6090510U

JPS6090510U - Exhaust system silencer

Info

Publication number: JPS6090510U
Application number: JP18344383U
Authority: JP
Inventors: 雄二青木; 晃東
Original assignee: 日産自動車株式会社
Priority date: 1983-11-28
Filing date: 1983-11-28
Publication date: 1985-06-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の排気系の消音装置を示す側面断面図、第
２図は第１図に示す排気系の消音装置が消音できる振動
波の周波数の範囲を示すグラフ、第３図は本考案に係る
排気系の消音装置の一実施例の断面図、第４図は第３図
におけるＡ部の断面図、第５図は第４図における■−■
矢視断面図、第６図は第３図におけるマフラの側面断面
図、第７図は第３図の排気系の消音装置が消音できる振
動波の周波数の範囲を示すグラフ、第８図は第１図に示
す排気系の消音装置において吸音材が片寄りを生じた状
態を示す断面側面図、第９図は他の実施例を示す側面断
面図である。１１・・・・・・フロントチューブ（排気系の消音装置
）、１２・・・・・・排気管、１３・・・・・・外筒、
１４・・曲空間、１７・・・・・・センタチューブ（排
気系の消音装置）、１９・・・・・・第１チユーブ、２
１・・・・・・第１小外筒、２２・・・・・・空間、２
７・・・・・・第２チユーブ、２８・・・・・・第２小
外筒、２９・・曲空間、３３・・曲テールチューブ（排
気系の消音装置）。Fig. 1 is a side cross-sectional view showing a conventional exhaust system muffler, Fig. 2 is a graph showing the frequency range of vibration waves that can be muffled by the exhaust system muffler shown in Fig. 1, and Fig. 3 is a graph showing the frequency range of vibration waves that can be muffled by the exhaust system muffler shown in Fig. 1. 4 is a sectional view of part A in FIG. 3, and FIG. 5 is a cross-sectional view of part A in FIG. 4.
6 is a side sectional view of the muffler in FIG. 3, FIG. 7 is a graph showing the frequency range of vibration waves that can be muffled by the exhaust system muffler in FIG. 3, and FIG. FIG. 1 is a cross-sectional side view showing a state in which the sound absorbing material is biased in the exhaust system muffling device shown in FIG. 1, and FIG. 9 is a side cross-sectional view showing another embodiment. 11...Front tube (exhaust system muffler), 12...Exhaust pipe, 13...Outer cylinder,
14... Curved space, 17... Center tube (exhaust system muffler), 19... First tube, 2
1...First small outer cylinder, 22...Space, 2
7... Second tube, 28... Second small outer cylinder, 29... Curved space, 33... Curved tail tube (exhaust system muffler).

Claims

[Scope of utility model registration request]

A muffler for an exhaust system, comprising an exhaust pipe that discharges combustion gas to the outside of the engine, and an outer cylinder that forms a space around the exhaust pipe that communicates with the inside of the exhaust pipe through multiple holes formed in the exhaust pipe. A muffler for an exhaust system, characterized in that the radius of the outer cylinder is continuously changed along the axis, thereby continuously changing the radial dimension of the space.