JP4508224B2 - 内燃機関の排気消音装置 - Google Patents
内燃機関の排気消音装置 Download PDFInfo
- Publication number
- JP4508224B2 JP4508224B2 JP2007231654A JP2007231654A JP4508224B2 JP 4508224 B2 JP4508224 B2 JP 4508224B2 JP 2007231654 A JP2007231654 A JP 2007231654A JP 2007231654 A JP2007231654 A JP 2007231654A JP 4508224 B2 JP4508224 B2 JP 4508224B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- pipe
- muffler
- exhaust pipe
- resonance
- 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 - Fee Related
Links
Images
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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- 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
- F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
- F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
-
- 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
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
-
- 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
- F01N13/02—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 two or more separate silencers in series
-
- 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
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/02—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the distance of the apparatus to the engine, or the distance between two exhaust treating apparatuses
-
- 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
- F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
-
- 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
- F01N2470/20—Dimensional characteristics of tubes, e.g. length, diameter
-
- 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
- F01N2490/18—Dimensional characteristics of gas chambers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
図1は本発明の第1の実施の形態に係る内燃機関の排気消音装置の概略構成を示す模式図であり、図2はその内燃機関の排気消音装置の排気管レイアウトを示す平面図、図3(a)はそのサブマフラの横断面図、図3(b)はそのサブマフラの縦断面図である。
図7は、本発明の第2の実施の形態に係る内燃機関の排気消音装置の概略構成を示す模式図である。なお、本実施形態は、前述の第1の実施の形態と排気管10のリヤパイプ部の構成のみが異なるのみであるので、ほぼ同一の構成を有する部分には図1〜図3に示す符号を用いて相違点についてのみ詳述する。
2 排気マニホールド
10 排気管
11 フロントパイプ
12 センターパイプ
12b 取付ブラケット
13 リヤパイプ
13a、13b 取付ブラケット
13e 排気口
21 メインマフラ(マフラ)
21a、21b 取付ブラケット
21c 触媒ユニット
22 サブマフラ(マフラ)
31 多孔内管
32 ケーシング
33 吸音材
34 吸音材収納空間
40 二重共鳴管
41 共鳴穴(穴)
42 共鳴室
43 内管
44 外管
50 共鳴管
L1 第1の排気管路
L2 第2の排気管路
L3 第3の排気管路
Claims (9)
- 内燃機関からの排気管路および排気口を形成する排気管と、前記内燃機関からの排気を消音するよう前記排気管に装着されたマフラと、を備えた内燃機関の排気消音装置において、
前記マフラが、メインマフラと、前記メインマフラよりマフラ容量が小さく前記排気管に装着されたサブマフラとによって構成され、
前記サブマフラが、前記排気管路の一部を形成するとともに多孔を有する多孔内管と、前記多孔内管を収納するとともに取り囲むケーシングと、前記多孔内管と前記ケーシングの間の空間に充填された吸音材と、を有し、
前記ケーシングが、前記サブマフラの両側の排気管の配管長さが同等になるように前記メインマフラの出口から前記排気管の排気口までの第1の排気管路の長さ方向の中央部に配置されるとともに、前記第1の排気管路の長さに対応して発生する低周波の排気音の減音に適する大断面積の吸音材収納空間を前記多孔内管の周囲に形成し、
前記第1の排気管路のうち、少なくとも前記メインマフラの出口から前記サブマフラの入口までの第2の排気管路、または、前記サブマフラの出口から前記排気管の排気口までの第3の排気管路の途中に、前記第2の排気管路と前記第3の排気管路との共鳴周波数を相違させる穴が形成されていることを特徴とする内燃機関の排気消音装置。 - 前記大断面積が、前記多孔内管の管路断面積の15倍を超えることを特徴とする請求項1に記載の内燃機関の排気消音装置。
- 前記大断面積が、前記多孔内管の管路断面積の20倍から25倍であることを特徴とする請求項2に記載の内燃機関の排気消音装置。
- 前記穴に連通する共鳴室を形成するよう前記排気管の一部に共鳴管が装着されたことを特徴とする請求項1ないし請求項3のうちいずれか1の請求項に記載の内燃機関の排気消音装置。
- 前記共鳴管が、前記排気管の一部を取り囲み、二重共鳴管が構成されていることを特徴とする請求項4に記載の内燃機関の排気消音装置。
- 前記共鳴管が前記排気管のうち前記第3の排気管路を形成する部分に装着されていることを特徴とする請求項4または請求項5に記載の内燃機関の排気消音装置。
- 前記サブマフラが、前記第1の排気管路の管路方向において前記メインマフラより全長が短いことを特徴とする請求項1ないし請求項6のうちいずれか1の請求項に記載の内燃機関の排気消音装置。
- 前記共鳴管が、前記穴を取り囲むとともに前記排気管から分岐した一端閉止型の共鳴管であり、前記排気管のうち前記第3の排気管路を形成する部分に装着されていることを特徴とする請求項4に記載の内燃機関の排気消音装置。
- 前記大断面積が、前記多孔内管の管路断面積の20倍から25倍であるとともに、前記サブマフラが、前記第1の排気管路の管路方向において前記メインマフラより全長が短いことを特徴とする請求項8に記載の内燃機関の排気消音装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007231654A JP4508224B2 (ja) | 2007-09-06 | 2007-09-06 | 内燃機関の排気消音装置 |
US12/676,769 US8136627B2 (en) | 2007-09-06 | 2008-09-05 | Exhaust silencer device for internal combustion engine |
EP08806999A EP2193260B1 (en) | 2007-09-06 | 2008-09-05 | Exhaust silencer device for internal combustion engine |
CN2008801059715A CN101796271B (zh) | 2007-09-06 | 2008-09-05 | 用于内燃机的排气***装置 |
PCT/IB2008/002306 WO2009031019A2 (en) | 2007-09-06 | 2008-09-05 | Exhaust silencer device for internal combustion engine |
BRPI0816373-1A2A BRPI0816373A2 (pt) | 2007-09-06 | 2008-09-05 | Dispositivo de silenciador de exaustão para motor de combustão interna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007231654A JP4508224B2 (ja) | 2007-09-06 | 2007-09-06 | 内燃機関の排気消音装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009062881A JP2009062881A (ja) | 2009-03-26 |
JP4508224B2 true JP4508224B2 (ja) | 2010-07-21 |
Family
ID=40429461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007231654A Expired - Fee Related JP4508224B2 (ja) | 2007-09-06 | 2007-09-06 | 内燃機関の排気消音装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8136627B2 (ja) |
EP (1) | EP2193260B1 (ja) |
JP (1) | JP4508224B2 (ja) |
CN (1) | CN101796271B (ja) |
BR (1) | BRPI0816373A2 (ja) |
WO (1) | WO2009031019A2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR112012007406A2 (pt) | 2009-09-24 | 2016-12-06 | Toyota Motor Co Ltd | parte de cano de escape e aparelho de escape para motores de combustão interna. |
CN104995378B (zh) * | 2013-02-12 | 2019-06-25 | 佛吉亚排放控制技术美国有限公司 | 具有共振阻尼的车辆排气*** |
DE102014011618B4 (de) * | 2014-08-01 | 2016-11-10 | Audi Ag | Abgasanlage für eine Brennkraftmaschine |
DE102015224453A1 (de) * | 2015-12-07 | 2017-06-08 | Eberspächer Exhaust Technology GmbH & Co. KG | Schalldämpfer und Herstellungsverfahren |
JP6508187B2 (ja) * | 2016-12-26 | 2019-05-08 | トヨタ自動車株式会社 | 排気管構造 |
US20190292955A1 (en) * | 2018-03-20 | 2019-09-26 | Faurecia Emissions Control Technologies, Usa, Llc | Method of providing a leak free acoustic volume for a vehicle frame member |
CN110410203A (zh) * | 2019-07-09 | 2019-11-05 | 宁波大叶园林设备股份有限公司 | 一种进一步降噪的发动机 |
CN113539222B (zh) * | 2021-08-20 | 2023-12-15 | 连云港长锦电力设备有限公司 | 一种高效排气*** |
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JPS59194519U (ja) * | 1983-06-10 | 1984-12-24 | 日産自動車株式会社 | 自動車用エンジンの排気騒音低減装置 |
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JPH0122452B2 (ja) * | 1983-06-08 | 1989-04-26 | Nissan Motor | |
JPH0544501Y2 (ja) * | 1988-11-02 | 1993-11-11 | ||
JPH08114117A (ja) * | 1994-10-19 | 1996-05-07 | Honda Motor Co Ltd | 車両の排気装置 |
JP2001098939A (ja) * | 1999-09-28 | 2001-04-10 | Calsonic Kansei Corp | 車両排気系の消音装置 |
JP2002089228A (ja) * | 2000-09-08 | 2002-03-27 | Masakatsu Hayashizaki | 襞状騒音分離型消音器 |
JP2005105918A (ja) * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | エンジンの排気消音装置 |
JP2006057491A (ja) * | 2004-08-18 | 2006-03-02 | Unix Co Ltd | 消音器 |
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-
2007
- 2007-09-06 JP JP2007231654A patent/JP4508224B2/ja not_active Expired - Fee Related
-
2008
- 2008-09-05 US US12/676,769 patent/US8136627B2/en not_active Expired - Fee Related
- 2008-09-05 BR BRPI0816373-1A2A patent/BRPI0816373A2/pt not_active IP Right Cessation
- 2008-09-05 WO PCT/IB2008/002306 patent/WO2009031019A2/en active Application Filing
- 2008-09-05 EP EP08806999A patent/EP2193260B1/en not_active Not-in-force
- 2008-09-05 CN CN2008801059715A patent/CN101796271B/zh not_active Expired - Fee Related
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JPH0122452B2 (ja) * | 1983-06-08 | 1989-04-26 | Nissan Motor | |
JPS59194519U (ja) * | 1983-06-10 | 1984-12-24 | 日産自動車株式会社 | 自動車用エンジンの排気騒音低減装置 |
JPS6345539Y2 (ja) * | 1983-06-20 | 1988-11-25 | ||
JPH0544501Y2 (ja) * | 1988-11-02 | 1993-11-11 | ||
JPH08114117A (ja) * | 1994-10-19 | 1996-05-07 | Honda Motor Co Ltd | 車両の排気装置 |
JP2001098939A (ja) * | 1999-09-28 | 2001-04-10 | Calsonic Kansei Corp | 車両排気系の消音装置 |
JP2002089228A (ja) * | 2000-09-08 | 2002-03-27 | Masakatsu Hayashizaki | 襞状騒音分離型消音器 |
JP2005105918A (ja) * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | エンジンの排気消音装置 |
JP2006057491A (ja) * | 2004-08-18 | 2006-03-02 | Unix Co Ltd | 消音器 |
Also Published As
Publication number | Publication date |
---|---|
JP2009062881A (ja) | 2009-03-26 |
EP2193260B1 (en) | 2012-10-24 |
WO2009031019A3 (en) | 2009-06-04 |
US20100300799A1 (en) | 2010-12-02 |
US8136627B2 (en) | 2012-03-20 |
EP2193260A2 (en) | 2010-06-09 |
CN101796271A (zh) | 2010-08-04 |
CN101796271B (zh) | 2012-02-01 |
WO2009031019A2 (en) | 2009-03-12 |
BRPI0816373A2 (pt) | 2015-02-24 |
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