JPS5892405U - Exhaust silencer for internal combustion engines - Google Patents

Exhaust silencer for internal combustion engines

Info

Publication number
JPS5892405U
JPS5892405U JP18873881U JP18873881U JPS5892405U JP S5892405 U JPS5892405 U JP S5892405U JP 18873881 U JP18873881 U JP 18873881U JP 18873881 U JP18873881 U JP 18873881U JP S5892405 U JPS5892405 U JP S5892405U
Authority
JP
Japan
Prior art keywords
sound absorber
internal combustion
housing
exhaust silencer
combustion engines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18873881U
Other languages
Japanese (ja)
Other versions
JPS647210Y2 (en
Inventor
睦生 関谷
英晴 田中
英興 内川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP18873881U priority Critical patent/JPS5892405U/en
Publication of JPS5892405U publication Critical patent/JPS5892405U/en
Application granted granted Critical
Publication of JPS647210Y2 publication Critical patent/JPS647210Y2/ja
Granted legal-status Critical Current

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  • Exhaust Silencers (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の内燃機関用排気消音装置を示す側面断面
図、第２図は同装置の改良案を示す側面断面図、第３図
は第２図の消音装置の周波数特性図、第４図はこの考案
′に係る内燃機関用排気消音装置の一例を示す側面断面
図、第５図〜第７図はこの考案の消音装置の周波数特性
図である。 １・・・筐体、２・・・多孔質吸音体、４・・・拡大管
、５・・・通気孔、６・・・孔開き補強板。なお、図中
同一符号は同一もしくは相当部分を示す。 第２図 第５図Fig. 1 is a side sectional view showing a conventional exhaust muffler for internal combustion engines, Fig. 2 is a side sectional view showing an improvement plan for the same device, Fig. 3 is a frequency characteristic diagram of the muffler shown in Fig. 2, and Fig. 4 The figure is a side sectional view showing an example of an exhaust muffling device for an internal combustion engine according to this invention, and FIGS. 5 to 7 are frequency characteristic diagrams of the muffling device of this invention. DESCRIPTION OF SYMBOLS 1... Housing, 2... Porous sound absorber, 4... Expansion tube, 5... Ventilation hole, 6... Perforated reinforcement plate. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure 2 Figure 5

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 筐体内に収納されてほぼ直線状の風路を構成する筒形の
多孔質吸音体と、上記風路の出口に位置して上記筐体に
突設された拡大管と、上記筐体の外周壁に形成された通
気孔とを備え、上記吸音体の外周側に、吸音体の全長に
わたり、かつ該吸音体とは消音周波数特性が異なる孔開
き補強板を配設した内燃機関用排気消音装置。a cylindrical porous sound absorber housed in a housing and forming a substantially linear air passage; an expansion tube located at the outlet of the air passage and protruding from the housing; and an outer periphery of the housing. an exhaust silencer for an internal combustion engine, comprising a vent hole formed in a wall, and a perforated reinforcing plate disposed on the outer circumferential side of the sound absorber that extends over the entire length of the sound absorber and has different silencing frequency characteristics from that of the sound absorber. .
JP18873881U 1981-12-16 1981-12-16 Exhaust silencer for internal combustion engines Granted JPS5892405U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18873881U JPS5892405U (en) 1981-12-16 1981-12-16 Exhaust silencer for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18873881U JPS5892405U (en) 1981-12-16 1981-12-16 Exhaust silencer for internal combustion engines

Publications (2)

Publication Number Publication Date
JPS5892405U true JPS5892405U (en) 1983-06-22
JPS647210Y2 JPS647210Y2 (en) 1989-02-27

Family

ID=29992511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18873881U Granted JPS5892405U (en) 1981-12-16 1981-12-16 Exhaust silencer for internal combustion engines

Country Status (1)

Country Link
JP (1) JPS5892405U (en)

Also Published As

Publication number Publication date
JPS647210Y2 (en) 1989-02-27

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