JPS58183922U - Main muffler of automobile engine - Google Patents

Main muffler of automobile engine

Info

Publication number
JPS58183922U
JPS58183922U JP8288482U JP8288482U JPS58183922U JP S58183922 U JPS58183922 U JP S58183922U JP 8288482 U JP8288482 U JP 8288482U JP 8288482 U JP8288482 U JP 8288482U JP S58183922 U JPS58183922 U JP S58183922U
Authority
JP
Japan
Prior art keywords
outlet pipe
automobile engine
main muffler
valve
flow rate
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.)
Pending
Application number
JP8288482U
Other languages
Japanese (ja)
Inventor
竹井　宏文
Original Assignee
日産自動車株式会社
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 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to JP8288482U priority Critical patent/JPS58183922U/en
Publication of JPS58183922U publication Critical patent/JPS58183922U/en
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust Silencers (AREA)
  • Characterised By The Charging Evacuation (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 drawings]

第１図は従来のメインマフラの縦断面図、第２図は本考
案のメインマフラの縦断面図、第３図は同じくケーシン
グの一部を切欠して示した側面拡大断面図、第４図は排
気吐出音レベルの特性グラフである。 ２７．２８・・・Ｕターン型拡張室、２９・・・入口管
、３１・・・頚管、３６・・・出口管、４１・・・バル
ブ。Fig. 1 is a vertical cross-sectional view of a conventional main muffler, Fig. 2 is a longitudinal cross-sectional view of the main muffler of the present invention, Fig. 3 is an enlarged side cross-sectional view showing a part of the casing cut away, and Fig. 4 is a characteristic graph of exhaust discharge sound level. 27.28... U-turn expansion chamber, 29... Inlet pipe, 31... Cervical canal, 36... Outlet pipe, 41... Valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入口管および出口管を結ぶ排気通路中にエンジンの運転
状態に応じて切換わるバルブを設け、排気流量が少ない
運転領域では排気をＵターン型拡張室を含む共鳴型消音
要素を経て出口管に排出し、排気流量が多い運転領域で
は排気を直接出口管に排出するように前記バルブを切換
えるように構成してなる自動車用エンジンのメインマフ
ラ。A valve is installed in the exhaust passage connecting the inlet pipe and the outlet pipe that switches depending on the engine operating condition, and in operating regions where the exhaust flow rate is low, exhaust gas is discharged to the outlet pipe through a resonant silencing element that includes a U-turn expansion chamber. The main muffler for an automobile engine is configured to switch the valve so as to discharge exhaust gas directly to an outlet pipe in an operating range where the exhaust flow rate is large.
JP8288482U 1982-06-03 1982-06-03 Main muffler of automobile engine Pending JPS58183922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8288482U JPS58183922U (en) 1982-06-03 1982-06-03 Main muffler of automobile engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8288482U JPS58183922U (en) 1982-06-03 1982-06-03 Main muffler of automobile engine

Publications (1)

Publication Number Publication Date
JPS58183922U true JPS58183922U (en) 1983-12-07

Family

ID=30091917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8288482U Pending JPS58183922U (en) 1982-06-03 1982-06-03 Main muffler of automobile engine

Country Status (1)

Country Link
JP (1) JPS58183922U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194513U (en) * 1983-06-10 1984-12-24 トヨタ自動車株式会社 Exhaust silencer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4713613U (en) * 1971-03-16 1972-10-18
JPS4839453U (en) * 1971-09-10 1973-05-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4713613U (en) * 1971-03-16 1972-10-18
JPS4839453U (en) * 1971-09-10 1973-05-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194513U (en) * 1983-06-10 1984-12-24 トヨタ自動車株式会社 Exhaust silencer

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