JP3955291B2 - 内燃エンジンの触媒付きマフラー - Google Patents
内燃エンジンの触媒付きマフラー Download PDFInfo
- Publication number
- JP3955291B2 JP3955291B2 JP2004206088A JP2004206088A JP3955291B2 JP 3955291 B2 JP3955291 B2 JP 3955291B2 JP 2004206088 A JP2004206088 A JP 2004206088A JP 2004206088 A JP2004206088 A JP 2004206088A JP 3955291 B2 JP3955291 B2 JP 3955291B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- exhaust gas
- muffler
- exhaust port
- 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 - Fee Related
Links
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
- F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
-
- 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
- F01N13/009—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 purifying devices arranged in series
- F01N13/0097—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 purifying devices arranged in series the purifying devices are arranged in a single housing
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/04—Catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
図1は、本発明に係る触媒付きマフラーの一実施形態を、それが適用された内燃エンジンと共に示す概略断面図である。
10…排気口
10a…外端部
20…マフラー
25…膨張室
30…排ガス浄化用触媒
30a…一端部
Claims (3)
- 膨張室(25)と、通気性を有する排ガス浄化用触媒(30)を一端に内嵌固定保持し他端に適数の排ガス流通穴(43)を形成した触媒保持体(40)と、を備え、内燃エンジン(1)の排気口(10)から噴出せしめられる排ガスを前記触媒(30)を介して前記膨張室(25)に導入するようにされた触媒付きマフラー(20)であって、
前記触媒(30)は、短円柱状あるいは短角柱状とされると共に、前記排気口(10)は、内端側から外端側に向けて断面積が漸増する末広がり形状とされた排気口外端部(10a)を有し、
前記触媒(30)の外面断面形状と前記排気口外端部(10a)の内面断面形状とが同一とされて、前記触媒(30)の一端部(30a)が前記排気口外端部(10a)に嵌挿されることを特徴とする触媒付きマフラー。 - 前記触媒(30)は、メタル担体酸化触媒であることを特徴とする請求項1に記載の触媒付きマフラー。
- 前記内燃エンジン(1)は、小型空冷2サイクルガソリンエンジンであることを特徴とする請求項1又は2に記載の触媒付きマフラー。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004206088A JP3955291B2 (ja) | 2004-07-13 | 2004-07-13 | 内燃エンジンの触媒付きマフラー |
US11/178,825 US20060010860A1 (en) | 2004-07-13 | 2005-07-11 | Catalyst-attached muffler for internal combustion engine |
DE102005033823A DE102005033823B4 (de) | 2004-07-13 | 2005-07-12 | Mit einem Katalysator verbundener Auspufftopf für einen Verbrennungsmotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004206088A JP3955291B2 (ja) | 2004-07-13 | 2004-07-13 | 内燃エンジンの触媒付きマフラー |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006029139A JP2006029139A (ja) | 2006-02-02 |
JP3955291B2 true JP3955291B2 (ja) | 2007-08-08 |
Family
ID=35597965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004206088A Expired - Fee Related JP3955291B2 (ja) | 2004-07-13 | 2004-07-13 | 内燃エンジンの触媒付きマフラー |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060010860A1 (ja) |
JP (1) | JP3955291B2 (ja) |
DE (1) | DE102005033823B4 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4934829B2 (ja) * | 2007-09-06 | 2012-05-23 | 株式会社やまびこ | エンジンユニット |
JP2009156158A (ja) * | 2007-12-26 | 2009-07-16 | Husqvarna Zenoah Co Ltd | エンジンのマフラ及び触媒装置 |
US8251173B2 (en) * | 2009-07-23 | 2012-08-28 | Briggs & Stratton Corporation | Muffler attachment system |
DE202011000524U1 (de) * | 2011-03-09 | 2012-06-12 | Makita Corporation | Schalldämpfer für ein Motorgerät |
TWI577842B (zh) * | 2016-05-30 | 2017-04-11 | 光鋐科技股份有限公司 | 氮化鋁鎵的成長方法 |
JP6795104B2 (ja) * | 2017-10-26 | 2020-12-02 | 工機ホールディングス株式会社 | マフラ及びそれを備えたエンジン作業機 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5226566B2 (ja) * | 1973-10-12 | 1977-07-14 | ||
JPS5224616A (en) * | 1975-08-18 | 1977-02-24 | Honda Motor Co Ltd | Multi-channel reactor for internal combustion engine exhaust system |
DE2731098A1 (de) * | 1977-07-09 | 1979-01-25 | Audi Nsu Auto Union Ag | Brennkraftmaschine mit einer nachverbrennungseinrichtung |
DE3871133D1 (de) * | 1987-09-04 | 1992-06-17 | Orbital Eng Pty | Abgasbehandlung fuer zweitaktmotor. |
CA1336413C (en) * | 1987-10-26 | 1995-07-25 | Mark Lear | Two stroke cycle internal combustion engines |
SE467315B (sv) * | 1987-12-08 | 1992-06-29 | Stihl Maschf Andreas | Avgasljuddaempare foer tvaataktsmotorer, i synnerhet foer baerbara arbetsredskap |
DE4137105A1 (de) * | 1991-11-12 | 1993-05-13 | Schwaebische Huettenwerke Gmbh | Anordnung eines katalysators fuer die abgase eines verbrennungsmotors |
JP2983432B2 (ja) * | 1994-04-22 | 1999-11-29 | 株式会社共立 | 内燃機関の排気マフラー構造 |
US5521339A (en) * | 1994-11-18 | 1996-05-28 | Wci Outdoor Products, Inc. | Catalyst muffler system |
JP3814081B2 (ja) * | 1998-06-30 | 2006-08-23 | 新ダイワ工業株式会社 | エンジンのマフラー |
ATE288539T1 (de) * | 1999-08-05 | 2005-02-15 | Hans A Haerle | Abgaskrümmer |
AT6105U1 (de) * | 2002-05-17 | 2003-04-25 | Avl List Gmbh | Verfahren zum betreiben einer brennkraftmaschine |
-
2004
- 2004-07-13 JP JP2004206088A patent/JP3955291B2/ja not_active Expired - Fee Related
-
2005
- 2005-07-11 US US11/178,825 patent/US20060010860A1/en not_active Abandoned
- 2005-07-12 DE DE102005033823A patent/DE102005033823B4/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2006029139A (ja) | 2006-02-02 |
US20060010860A1 (en) | 2006-01-19 |
DE102005033823B4 (de) | 2007-08-30 |
DE102005033823A1 (de) | 2006-02-23 |
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