JPS60157920U - Engine exhaust silencer - Google Patents

Engine exhaust silencer

Info

Publication number
JPS60157920U
JPS60157920U JP4553484U JP4553484U JPS60157920U JP S60157920 U JPS60157920 U JP S60157920U JP 4553484 U JP4553484 U JP 4553484U JP 4553484 U JP4553484 U JP 4553484U JP S60157920 U JPS60157920 U JP S60157920U
Authority
JP
Japan
Prior art keywords
engine exhaust
silencer
back pressure
atmosphere
pressure reduction
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
JP4553484U
Other languages
Japanese (ja)
Other versions
JPH0210248Y2 (en
Inventor
吉山　博文
Original Assignee
マツダ株式会社
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 マツダ株式会社 filed Critical マツダ株式会社
Priority to JP4553484U priority Critical patent/JPS60157920U/en
Publication of JPS60157920U publication Critical patent/JPS60157920U/en
Application granted granted Critical
Publication of JPH0210248Y2 publication Critical patent/JPH0210248Y2/ja
Granted legal-status Critical Current

Links

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 drawings]

第１図は低周波排気騒音の特性図、第２，３図は本考案
の実施例を示すもので、第２図は排気消音装置の概略図
、第３図は該装置におけるサイレンサの拡大断面図であ
る。 １・・・排気消音装置、４・・・導入管（排気導入管）
、５・・・サイレンサ、６・・・導出管（排気導出管）
、７・・・背圧低減通路（バイパス通路）、８・・・開
閉弁、９・・・制御手段（制御装置）、１５・・・共鳴
室、１７・・・開放孔、１８・・・吸音材。Fig. 1 is a characteristic diagram of low-frequency exhaust noise, Figs. 2 and 3 show examples of the present invention, Fig. 2 is a schematic diagram of an exhaust silencing device, and Fig. 3 is an enlarged cross-section of a silencer in the device. It is a diagram. 1...Exhaust silencer, 4...Introduction pipe (exhaust introduction pipe)
, 5... Silencer, 6... Outlet pipe (exhaust outlet pipe)
, 7... Back pressure reduction passage (bypass passage), 8... Opening/closing valve, 9... Control means (control device), 15... Resonance chamber, 17... Open hole, 18... Sound absorbing material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 共鳴室を有するサイレンサに排気を導入する導入管と排
気を大気中に放出する導出管とを接続したエンジンの排
気消音装置において、上記導入管から先端が大気側に開
口された背圧低減通路を分岐すると共に、該通路の所定
位置に設けた複数の開放孔を吸音材によって包囲し、且
つ該背圧低減通路を開閉する開閉弁と、該弁をエンジン
の加速時に開方向に作動させる制御手段とを備えたこと
を特徴とするエンジンの排気消音装置。In an engine exhaust silencing device that connects an inlet pipe that introduces exhaust gas into a silencer having a resonance chamber and an outlet pipe that discharges the exhaust gas into the atmosphere, a back pressure reduction passage whose tip is opened toward the atmosphere from the inlet pipe is provided. An opening/closing valve that branches, surrounds a plurality of open holes provided at predetermined positions of the passage with a sound absorbing material, and opens and closes the back pressure reduction passage, and a control means that operates the valve in the opening direction when the engine accelerates. An engine exhaust silencer characterized by comprising:
JP4553484U 1984-03-28 1984-03-28 Engine exhaust silencer Granted JPS60157920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4553484U JPS60157920U (en) 1984-03-28 1984-03-28 Engine exhaust silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4553484U JPS60157920U (en) 1984-03-28 1984-03-28 Engine exhaust silencer

Publications (2)

Publication Number Publication Date
JPS60157920U true JPS60157920U (en) 1985-10-21
JPH0210248Y2 JPH0210248Y2 (en) 1990-03-14

Family

ID=30559121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4553484U Granted JPS60157920U (en) 1984-03-28 1984-03-28 Engine exhaust silencer

Country Status (1)

Country Link
JP (1) JPS60157920U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019085954A (en) * 2017-11-09 2019-06-06 スズキ株式会社 Exhaust system of vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445474U (en) * 1977-09-06 1979-03-29
JPS5744925U (en) * 1980-08-29 1982-03-12

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172355A (en) * 1974-12-19 1976-06-23 Canon Kk KAKUDOSOKUTEIHOHO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445474U (en) * 1977-09-06 1979-03-29
JPS5744925U (en) * 1980-08-29 1982-03-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019085954A (en) * 2017-11-09 2019-06-06 スズキ株式会社 Exhaust system of vehicle

Also Published As

Publication number Publication date
JPH0210248Y2 (en) 1990-03-14

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