JPH0428887B2 - - Google Patents

Info

Publication number
JPH0428887B2
JPH0428887B2 JP58030502A JP3050283A JPH0428887B2 JP H0428887 B2 JPH0428887 B2 JP H0428887B2 JP 58030502 A JP58030502 A JP 58030502A JP 3050283 A JP3050283 A JP 3050283A JP H0428887 B2 JPH0428887 B2 JP H0428887B2
Authority
JP
Japan
Prior art keywords
outer box
chamber
glass wool
silencer
exhaust
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.)
Expired - Lifetime
Application number
JP58030502A
Other languages
English (en)
Other versions
JPS59155528A (ja
Inventor
Naomiki Uesugi
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP58030502A priority Critical patent/JPS59155528A/ja
Priority to PCT/JP1984/000013 priority patent/WO1984002954A1/ja
Priority to US06/650,634 priority patent/US4598790A/en
Priority to GB08423096A priority patent/GB2143902B/en
Publication of JPS59155528A publication Critical patent/JPS59155528A/ja
Publication of JPH0428887B2 publication Critical patent/JPH0428887B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F01N2490/06—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet in opposite directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Description

【発明の詳細な説明】 この発明は、内燃機関の排気装置における消音
器に関し、特にその外箱に係るものである。
従来、内燃機関の排気装置における消音器は、
排気が高温であるため、チヤンバを形成する外箱
が鋼板でつくられている。また、消音効果を高め
るためおよび断熱のため、外箱の内面に、本出願
人の先願である特開昭59−134310号公報による成
形グラスウール、すなわち、綿状のグラスウール
を圧縮加工により定形化した成形グラスウール壁
を貼り付けることも行われている。このような消
音器は、外箱に鋼板を用いていることにより重量
が大となり、また、外箱の内面に成形グラスウー
ル壁を貼り付けるのであるから、２重構造となつ
て製作上繁雑であり、かつコストも高くなる。
この発明は上記事情に鑑みてなされたもので、
軽量であり、構造が簡単であり、かつ安価に製造
できる消音器を得ることを目的とするものであ
る。
以下、本発明の一実施例を図面に従つて説明す
る。
第１図は自動二輪車の排気装置に設けられた消
音器の断面図で、この消音器Ａは、図示せぬエン
ジンの排気ポートに接続されたエキゾーストパイ
プ１の端部に接続されている。
本考案の消音器Ａは、綿状のグラスウールを圧
縮加工により定形化し、かつ、外表面にのみ耐熱
性樹脂で含浸硬化させた外箱２を備えている。
この外箱２は、実施例の場合第２図に示す如
く、２つ割りされている。すなわち、外箱２は、
片側開放の２つの外箱片３，４からなり、両外箱
片３，４の接合部には、互いに相手側とかみ合う
フツク部３ａ，４ａが形成され、このフツク部３
ａ，４ａに耐熱性接着剤を塗布して両者３ａ，４
ａをかみ合わせて接合し、さらにホツチキス針の
如きコ字状止め金５で止めてその接合の補強を行
つている。
消音器Ａとエキゾーストパイプ１との接合は、
外箱２に設けた鋼製グロメツト６にエキゾースト
パイプ１を挿通し、その挿通部をろう付けして行
つている。
また、エキゾーストパイプ１の外箱２内の部分
は、多数の小孔１ａがあけられてデフユーザパイ
プ部１ｂとされ、その周囲を囲む筒状ケース７が
取り付けられ、筒状ケース７内に綿状グラスウー
ル８が充填されている。
外箱２の内部、すなわちチヤンバ９は、２つの
隔壁１０，１１によつて第１チヤンバ９ａ、第２
チヤンバ９ｂ、第３チヤンバ９ｃの３つの室に区
切られている。これらの隔壁１０，１１は、その
周縁の筒状部１０ａ，１１ａが外箱２の内面側に
設けた環状の溝２ａに嵌合して外箱２に固定され
ている。必要に応じて筒状部１０ａ，１１ａに耐
熱性接着剤を塗布して接合するとよい。
また、外箱２内部には、隔壁１０と隔壁１１と
を連通して第１チヤンバ９ａと第３チヤンバ９ｃ
とを連通させる連通パイプ１２、隔壁１１を貫通
して第３チヤンバ９ｃと第２チヤンバ９ｂとを連
通させる連通パイプ１３、第２チヤンバ９ｂを直
接外部に通じさせるデフユーザパイプ１４が設け
られている。このデフユーザパイプ１４には多数
の小孔１４ａがあけられ、外周に取り付けられた
円筒状ケース１５との間に綿状グラスウール１６
が充填されており、端部は、外箱２に設けられた
鋼製グロメツト１７にろう付けされている。
上述の如く構成された消音器Ａにおいて、エン
ジンからの排気はエキゾーストパイプ１を通り、
端部のデフユーザパイプ部１ｂから第１チヤンバ
９ａに入り、連通パイプ１２を通つて第３チヤン
バ９ｃに入り、連通パイプ１３を通つて第２室９
ｂに入りデフユーザパイプ１４から外部に放出さ
れるが、その間、圧縮・膨張を繰り返して消音効
果が生じる。この場合、チヤンバ９が成形グラス
ウールで形成されているので、その吸音作用によ
り一層高い消音効果が得られる。
また、エンジンからの排気は高温であるが、グ
ラスウールの断熱性がきわめて高いので、外箱２
の外表面の温度を充分低く抑えることができる。
本発明の外箱２は、上述の如く、成形グラスウ
ールのみで鋼板を用いていないが、成形グラスウ
ールは、これを所定の樹脂で含浸硬化させた場
合、通常の繊維強化プラスチツク（FRP）以上
の引張り強さを得ることができるので、消音器の
外箱として要求される充分な強度を持つ。そし
て、鋼板を用いていないので軽量である。また、
製作において、鋼板製の外箱の内面に吸音材を別
に貼り付ける従来のものと比べ、外箱の機能と吸
音材の機能とを兼用しているので、構造が簡単で
あり、煩雑さがなく、安価に製作できる。また、
樹脂を含浸した表面は水、油等をはじく作用を持
つ。
なお、本発明が適用される消音器の構造につい
ては種々のものが考えられ、実施例の如く、排気
が外箱２の内部をう回して流れる構造のものに限
らず、エキゾーストパイプの部分から徐々に径が
膨らんで排気チヤンバを形成し、排気がう回せず
に後方に流れるものにも適用することができる。
また、隔壁および連通パイプ等の部分も非金属
化、すなわちオール成形グラスウールにすること
も可能であり、更に、軽量化できる。
以上説明したように本発明の消音器は、グラス
ウールを圧縮加工により定形化し、かつ、外表面
に耐熱性樹脂で含浸硬化させた外箱を備えている
ので、樹脂による補強作用によつて所定の強度が
確保されるとともに、外箱の表面が水、油等をは
じくこととなつて優れた耐候性が得られる。しか
もこの外箱の内側は樹脂で含浸硬化されていない
ので、グラスウールの持つ消音および吸音効果が
損なわれることなく所望の減音効果が得られる。
すなわち、良好な強度および耐候性が得られる
ことと、所望の減音効果が得られることを同時に
満足することができる。
加えて、軽量化、構造の単純化、コスト低減も
達成できる。
【図面の簡単な説明】
第１図は本発明の一実施例を示す消音器の断面
図、第２図は第１図における−線断面図であ
る。 Ａ……消音器、１……エキゾーストパイプ、２
……外箱、２ａ……溝、３，４……外箱片、３
ａ，４ａ……フツク部、５……コ字状止め金、１
０，１１……隔壁。

Claims (1)

    【特許請求の範囲】
  1. １ 内燃機関の排気装置の消音器において、グラ
    スウールを圧縮加工により定形化し、かつ、外表
    面にのみ耐熱性樹脂で含浸硬化させた外箱を備え
    たことを特徴とする消音器。
JP58030502A 1983-01-20 1983-02-25 消音器 Granted JPS59155528A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP58030502A JPS59155528A (ja) 1983-02-25 1983-02-25 消音器
PCT/JP1984/000013 WO1984002954A1 (en) 1983-01-20 1984-01-20 Heat and sound insulating apparatus
US06/650,634 US4598790A (en) 1983-01-20 1984-01-20 Heat and sound insulation device
GB08423096A GB2143902B (en) 1983-01-20 1984-01-20 Heat and sound insulating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58030502A JPS59155528A (ja) 1983-02-25 1983-02-25 消音器

Publications (2)

Publication Number Publication Date
JPS59155528A JPS59155528A (ja) 1984-09-04
JPH0428887B2 true JPH0428887B2 (ja) 1992-05-15

Family

ID=12305589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58030502A Granted JPS59155528A (ja) 1983-01-20 1983-02-25 消音器

Country Status (1)

Country Link
JP (1) JPS59155528A (ja)

Families Citing this family (32)

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US5448831A (en) * 1993-11-08 1995-09-12 Ap Parts Manufacturing Company Method of manufacturing a stamp formed muffler with hermetically sealed laminated outer shell
US5816361A (en) * 1994-03-02 1998-10-06 Ap Parts Manufacturing Company Exhaust mufflers with stamp formed internal components and method of manufacture
CA2123870A1 (en) * 1994-03-02 1995-09-03 James E. Gerber Exhaust mufflers with stamp formed internal components and method of manufacture
US5597986A (en) * 1995-02-27 1997-01-28 Ap Parts Manufacturing Company Stamp formed muffler with nested chambers
US5907904A (en) * 1996-03-22 1999-06-01 Ap Parts Manufacturing Company Method of manufacturing an exhaust muffler with stamp formed internal components
US6341664B1 (en) 2000-01-13 2002-01-29 Goerlich's Inc. Exhaust muffler with stamp formed internal assembly
AT510788B1 (de) 2010-10-28 2012-10-15 Avl List Gmbh Abgasschalldämpferanordnung
US20120273301A1 (en) * 2011-04-29 2012-11-01 E. I. Du Pont De Nemours And Company Muffler assembly with mounting adapter(s) and process of manufacture
DE102014114060A1 (de) * 2014-09-27 2016-03-31 Webasto SE Heizgerät-Abgasrohranordnung mit integriertem Schalldämpfer
DE102015224453A1 (de) * 2015-12-07 2017-06-08 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer und Herstellungsverfahren

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4724546U (ja) * 1971-04-09 1972-11-18
JPS5724546U (ja) * 1980-07-17 1982-02-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4724546U (ja) * 1971-04-09 1972-11-18
JPS5724546U (ja) * 1980-07-17 1982-02-08

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