JPWO2004113696A1 - 4サイクルエンジン - Google Patents
4サイクルエンジン Download PDFInfo
- Publication number
- JPWO2004113696A1 JPWO2004113696A1 JP2005507196A JP2005507196A JPWO2004113696A1 JP WO2004113696 A1 JPWO2004113696 A1 JP WO2004113696A1 JP 2005507196 A JP2005507196 A JP 2005507196A JP 2005507196 A JP2005507196 A JP 2005507196A JP WO2004113696 A1 JPWO2004113696 A1 JP WO2004113696A1
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- secondary air
- exhaust pipe
- disposed
- catalysts
- 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
Links
- 239000003054 catalyst Substances 0.000 claims abstract description 170
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 230000003584 silencer Effects 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 16
- 230000010349 pulsation Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 39
- 239000000446 fuel Substances 0.000 description 27
- 238000000746 purification Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 13
- 230000004913 activation Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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
- 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
- F01N3/30—Arrangements for supply of additional air
-
- 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
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
-
- 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
- F01N2270/00—Mixing air with exhaust gases
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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)
- Valve Device For Special Equipments (AREA)
Abstract
Description
[図2]上記実施形態の効果を確認するために行なった実験例1の説明図である。
[図3]上記実験例1の特性を示す図である。
[図4]上記実施形態の効果を確認するために行なった実験例2の説明図である。
[図5]上記実験例2の特性を示す図である。
[図6]上記実施形態の効果を確認するために行なった実験例3の説明図である。
[図7]上記実験例3の特性を示す図である。
[図8]上記実験例に採用した触媒の温度計測方法を示す図である。
[図9]上記実験結果を示す特性図である。
[図10]上記実施形態の排気ガス通路の比較例を示す図である。
[図11]従来の一般的なO2フィードバック制御による排気ガス浄化装置を備えた4サイクルエンジンの模式構成図である。
[図12]上記排気ガス浄化装置の特性図である。
[図13]従来の一般的な第1,第2触媒と二次空気による排気ガス浄化装置の模式構成図である。
[図14]上記排気ガス浄化装置の特性図である。
[図15]一般的な4サイクルエンジンの空燃比と排気ガスとの関係を示す特性図である。
6 排気管
7 エキゾーストパイプ
8 消音器
9 第1触媒
10 第2触媒
11 二次空気導入管
Claims (4)
- エンジンの排気ポートに排気管を接続し、該排気管内に触媒を配設するとともに二次空気を導入するようにした4サイクルエンジンにおいて、上記排気管内に第1触媒を配置し、該第1触媒より下流側の排気管内に第2触媒を上記第1触媒との間に所定の間隔をあけて配置し、上記二次空気を導入する二次空気導入管を、上記排気管の上記第1,第2触媒の間の部分に、かつ該第1,第2触媒のエンジン冷機始動から所定の運転時間が経過するまでの計測運転域における温度差が所定範囲内となる位置に接続したことを特徴とする4サイクルエンジン。
- エンジンの排気ポートに排気管を接続し、該記排気管内に触媒を配設するとともに二次空気を導入するようにした4サイクルエンジンにおいて、上記排気管内に第1触媒を配置し、該第1触媒より下流側の排気管内に第2触媒を上記第1触媒との間に所定の間隔をあけて配置し、上記二次空気を導入する二次空気導入管を、上記排気管の上記第1,第2触媒の間の部分に、かつ導入された二次空気が排気脈動により上流側の第1触媒にも作用する位置に接続したことを特徴とする4サイクルエンジン。
- 請求項1又は2において、上記排気管の一部を囲む消音器を設け、上記第1触媒は上記消音器より上流側に配設され、上記第2触媒は上記消音器の内部に配設されていることを特徴とする4サイクルエンジン。
- 請求項1又は2において、上記排気管の一部を囲む消音器を設け、上記第1触媒は上記消音器より上流側に配設され、上記第2触媒は上記消音器の内部に配設されており、上記二次空気導入管は、排気管の上記第2触媒より上流側でかつ上記消音器の内部に位置する部分に接続されていることを特徴とする4サイクルエンジン。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003174735 | 2003-06-19 | ||
JP2003174735 | 2003-06-19 | ||
JP2004084603 | 2004-03-23 | ||
JP2004084603 | 2004-03-23 | ||
PCT/JP2004/007924 WO2004113696A1 (ja) | 2003-06-19 | 2004-06-07 | 4サイクルエンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2004113696A1 true JPWO2004113696A1 (ja) | 2006-07-20 |
JP4234716B2 JP4234716B2 (ja) | 2009-03-04 |
Family
ID=33543478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005507196A Expired - Fee Related JP4234716B2 (ja) | 2003-06-19 | 2004-06-07 | 4サイクルエンジン |
Country Status (8)
Country | Link |
---|---|
US (1) | US7448204B2 (ja) |
EP (2) | EP1640581B1 (ja) |
JP (1) | JP4234716B2 (ja) |
AT (1) | ATE528492T1 (ja) |
ES (1) | ES2387935T3 (ja) |
MY (1) | MY141622A (ja) |
TW (1) | TWI296022B (ja) |
WO (1) | WO2004113696A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006199175A (ja) * | 2005-01-21 | 2006-08-03 | Yamaha Motor Co Ltd | スノーモービル |
JP2006199176A (ja) * | 2005-01-21 | 2006-08-03 | Yamaha Motor Co Ltd | スノーモービルの排気装置 |
JP2006291929A (ja) * | 2005-04-14 | 2006-10-26 | Yamaha Motor Co Ltd | 排気ガス浄化機能を有するエンジン |
CN1936288B (zh) * | 2005-09-19 | 2010-05-26 | 徐楠 | 环保的机动车尾气净化消声器 |
JP4372764B2 (ja) * | 2006-03-30 | 2009-11-25 | トヨタ自動車株式会社 | 排ガス浄化装置 |
JP2007297984A (ja) * | 2006-05-01 | 2007-11-15 | Yamaha Motor Co Ltd | 排気装置およびその排気装置を備えた車両 |
JP2008064068A (ja) * | 2006-09-11 | 2008-03-21 | Yamaha Motor Co Ltd | 自動二輪車 |
JP4871107B2 (ja) * | 2006-12-06 | 2012-02-08 | ヤマハ発動機株式会社 | 鞍乗り型車両 |
EP1970546B1 (en) * | 2007-03-13 | 2010-01-20 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust system and method of controlling an engine of a straddle type vehicle |
DE102007062663A1 (de) * | 2007-12-24 | 2009-06-25 | J. Eberspächer GmbH & Co. KG | Schiebesitz sowie Rohranordnung und Abgasbehandlungseinrichtung |
US8136350B2 (en) * | 2008-05-28 | 2012-03-20 | Briggs & Stratton Corporation | Catalytic muffler having crossover passageway for secondary air |
US8661786B2 (en) * | 2008-07-01 | 2014-03-04 | Woodward, Inc. | Passive secondary air delivery system for two bed catalyst system |
JP2010101310A (ja) | 2008-09-26 | 2010-05-06 | Yamaha Motor Co Ltd | 鞍乗り型車両 |
US8485313B2 (en) | 2010-06-18 | 2013-07-16 | Briggs & Stratton Corporation | Muffler and engine system |
JP5549656B2 (ja) * | 2011-09-27 | 2014-07-16 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US9149768B1 (en) * | 2014-03-27 | 2015-10-06 | General Electric Company | Emission control in rich burn natural gas engines |
US9746176B2 (en) | 2014-06-04 | 2017-08-29 | Lochinvar, Llc | Modulating burner with venturi damper |
JP6002257B2 (ja) * | 2015-02-04 | 2016-10-05 | 富士重工業株式会社 | 排気マフラ |
DE102017010825A1 (de) * | 2017-11-23 | 2019-05-23 | Daimler Ag | Verfahren zum Betreiben einer Abgasanlage, insbesondere eines Kraftfahrzeugs |
US11428181B2 (en) * | 2020-03-25 | 2022-08-30 | Cummins Inc. | Systems and methods for ultra-low NOx cold start warmup control and fault diagnosis |
US11624333B2 (en) | 2021-04-20 | 2023-04-11 | Kohler Co. | Exhaust safety system for an engine |
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JPS5359014U (ja) * | 1976-10-22 | 1978-05-19 | ||
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JPS6170118A (ja) * | 1984-09-14 | 1986-04-10 | Yamaha Motor Co Ltd | 自動車エンジンの排気装置 |
JPH07101008B2 (ja) * | 1986-01-14 | 1995-11-01 | ヤマハ発動機株式会社 | 多気筒エンジンの吸気装置 |
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JP3172232B2 (ja) * | 1991-10-15 | 2001-06-04 | ヤマハ発動機株式会社 | エンジンの燃焼制御装置 |
JPH0622554U (ja) * | 1992-08-28 | 1994-03-25 | 富士重工業株式会社 | エンジンの排気ガス再循環装置 |
US6000217A (en) * | 1995-01-04 | 1999-12-14 | Engelhard Corporation | Air injection strategies for effectively burning hydrocarbons released from a hydrocarbon trap |
US5822976A (en) * | 1995-04-05 | 1998-10-20 | Ford Global Technologies, Inc. | Method and system for controlling the amount of secondary air introduced into an internal combustion engine |
JPH09133016A (ja) * | 1995-11-09 | 1997-05-20 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
DE69709977T2 (de) * | 1996-05-02 | 2002-06-06 | Kubota Corp., Osaka | Verfahren zum Befestigen einer Kraftstoffeinspritzvorrichtung an einen Motor |
JP3191003B2 (ja) * | 1996-09-06 | 2001-07-23 | 株式会社クボタ | ディーゼルエンジンの副室式燃焼室 |
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JP2001173437A (ja) | 1999-12-17 | 2001-06-26 | Denso Corp | 内燃機関の排ガス浄化装置 |
DE10038724A1 (de) * | 2000-08-09 | 2002-02-21 | Porsche Ag | Verfahren und Vorrichtung zur katalytischen Abgasnachbehandlung des Abgases einer Brennkraftmaschine |
JP2002161737A (ja) | 2000-11-29 | 2002-06-07 | Sanshin Ind Co Ltd | エンジンにおける排気浄化装置、およびこの装置を搭載した小型船舶 |
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-
2004
- 2004-05-26 MY MYPI20042011A patent/MY141622A/en unknown
- 2004-06-07 WO PCT/JP2004/007924 patent/WO2004113696A1/ja active Application Filing
- 2004-06-07 JP JP2005507196A patent/JP4234716B2/ja not_active Expired - Fee Related
- 2004-06-07 EP EP04745634A patent/EP1640581B1/en not_active Expired - Lifetime
- 2004-06-07 EP EP09010830A patent/EP2119884B1/en not_active Expired - Lifetime
- 2004-06-07 ES ES09010830T patent/ES2387935T3/es not_active Expired - Lifetime
- 2004-06-07 AT AT04745634T patent/ATE528492T1/de not_active IP Right Cessation
- 2004-06-08 TW TW093116433A patent/TWI296022B/zh active
-
2005
- 2005-12-19 US US11/311,067 patent/US7448204B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
TWI296022B (en) | 2008-04-21 |
EP1640581A4 (en) | 2009-07-29 |
JP4234716B2 (ja) | 2009-03-04 |
EP2119884B1 (en) | 2012-06-27 |
WO2004113696A1 (ja) | 2004-12-29 |
ES2387935T3 (es) | 2012-10-04 |
EP1640581A1 (en) | 2006-03-29 |
MY141622A (en) | 2010-05-31 |
US7448204B2 (en) | 2008-11-11 |
US20060150617A1 (en) | 2006-07-13 |
TW200504278A (en) | 2005-02-01 |
EP1640581B1 (en) | 2011-10-12 |
EP2119884A1 (en) | 2009-11-18 |
ATE528492T1 (de) | 2011-10-15 |
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