JP5866031B2 - 内燃機関の排気ガスシステムおよび内燃機関の排気ガスに添加される還元剤を調合するための方法 - Google Patents
内燃機関の排気ガスシステムおよび内燃機関の排気ガスに添加される還元剤を調合するための方法 Download PDFInfo
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
- F01N3/20—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 specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
- F01N3/20—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 specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2610/00—Adding substances to exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N2610/00—Adding substances to exhaust gases
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- 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
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Exhaust Gas After Treatment (AREA)
Description
Claims (14)
- 排気ガスを誘導するために、第1の円筒状排気ガス導管区間(2)および第2の円筒状排気ガス導管区間(3)を有する、内燃機関のための排気ガスシステムであって、
前記第1の排気ガス導管区間(2)には、前記第1の排気ガス導管区間(2)を通って流れる排気ガス中に還元剤を加えるためのインジェクションユニット(4)が配置されており、
前記第2の排気ガス導管区間(3)は、シリンダジャケット面、閉鎖されている第1の端部(6)および開放されている第2の端部(7)、および前記閉鎖されている端部(6)に隣接する前記シリンダジャケット面内の開口部(8)を有し、
前記第1の排気ガス導管区間(2)の開放されている端部(9)が前記第2の排気ガス導管区間(3)の前記開口部(8)と形状一致で連結され、前記第1の排気ガス導管区間(2)の開放されている前記端部(9)から流出する排気ガスが、前記第2の排気ガス導管区間(3)の長手方向の伸長に対して、少なくともほぼ直角の方向で、前記第2の排気ガス導管区間(3)の前記シリンダジャケット面内の前記開口部(8)を介して、前記第2の排気ガス導管区間(3)に流入することができるようにされている、内燃機関のための排気ガスシステムであって、
前記第2の排気ガス導管区間(3)の前記シリンダジャケット面内の前記開口部(8)が、前記第2の排気ガス導管区間(3)の長手方向の伸長方向に、その横方向に対するよりも、より大きな伸長を有すること、および
前記第2の排気ガス導管区間(3)が、前記シリンダジャケット面の前記開口部(8)の領域で、楕円形の横断面または2つの隣り合った円形部分に対応する横断面を有し、前記楕円形の横断面または前記2つの隣り合った円形部分に対応する横断面の各々の焦点周囲に、逆方向に回転する2つの渦巻を形成するものであることを特徴とする、内燃機関のための排気ガスシステム。 - 前記インジェクションユニット(4)が、前記第1の排気ガス導管区間(2)と前記第2の排気ガス導管区間(3)との連結部位から距離を取った上流側に配置されており、前記距離は、前記第1の排気ガス導管区間(2)または前記第2の排気ガス導管区間(3)のいずれの直径よりも小さいことを特徴とする、請求項1に記載の排気ガスシステム。
- 前記第1の排気ガス導管区間(2)と前記第2の排気ガス導管区間(3)との連結部位から、前記第1の排気ガス導管区間(2)または前記第2の排気ガス導管区間(3)のいずれの直径より小さい距離を取った上流側で、前記第1の排気ガス導管区間(2)内に、少なくとも1つの平板形状のバッフルプレート(10)が配置され、前記インジェクションユニット(4)によって前記第1の排気ガス導管区間(2)内に加えられる還元剤が前記バッフルプレートに衝突するものであることを特徴とする、請求項1または2に記載の排気ガスシステム。
- 前記少なくとも1つのバッフルプレート(10)が、前記第2の排気ガス導管区間(3)のシリンダジャケット面内の前記開口部(8)の上方に配置されていることを特徴とする、請求項3に記載の排気ガスシステム。
- 前記少なくとも1つのバッフルプレート(10)が、少なくともほぼ平面状に形成されており、前記バッフルプレートの平面の法線ベクトルは、少なくとも排気ガス流方向に対してほぼ直角に方向付けられていることを特徴とする、請求項3または4に記載の排気ガスシステム。
- 複数のバッフルプレート(10)が設けられていることを特徴とする、請求項3〜5のうちのいずれか一項に記載の排気ガスシステム。
- 前記バッフルプレートの平面的な伸長が、異なるように選択されていることを特徴とする、請求項6に記載の排気ガスシステム。
- 前記第1の排気ガス導管区間(2)の円筒軸(11)は、前記第2の排気ガス導管区間(3)との連結部位領域で、前記第2の排気ガス導管区間(3)の横断面の中心領域に方向付けられていることを特徴とする、請求項1から7のうちのいずれか一項に記載の排気ガスシステム。
- 前記第1の排気ガス導管区間(2)の円筒軸(11)が、前記第2の排気ガス導管区間(3)との連結部位領域で、前記第2の排気ガス導管区間(3)の横断面の中央よりも外側の領域に方向付けられていることを特徴とする、請求項1〜7のうちのいずれか一項に記載の排気ガスシステム。
- 内燃機関の排気ガスシステムの第1の排気ガス導管区間(2)内に加えられる還元剤を調合するための方法であって、前記第1の排気ガス導管区間(2)に連結される第2の排気ガス導管区間(3)が、シリンダジャケット面、閉鎖されている第1の端部(6)および開放されている第2の端部(7)、および前記閉鎖されている端部(6)に隣接する前記シリンダジャケット面内の開口部(8)、並びに前記シリンダジャケット面の前記開口部(8)の領域で、楕円形の横断面または2つの隣り合った円形部分に対応する横断面を有し、前記加えられる還元剤が、前記第1の排気ガス導管区間(2)内に配置された気化装置で、少なくとも部分的に気化し、それに続いて内燃機関の排気ガスと共に、前記第2の排気ガス導管区間(3)の前記シリンダジャケット面の前記開口部(8)を通って、前記第2の排気ガス導管区間(3)の軸方向に対して少なくともほぼ直角に方向付けられた方向で、前記第2の排気ガス導管区間(3)内に流入し、前記第2の排気ガス導管区間(3)内に流入する排気ガスが、前記第2の排気ガス導管区間(3)の軸方向から見て、前記楕円形の横断面または前記2つの隣り合った円形部分に対応する横断面の各々の焦点周囲に、逆方向に回転する2つの渦巻を形成することを特徴とする方法。
- 前記2つの渦巻に対して、少なくとも前記第2の排気ガス導管区間(3)内の排気ガス入口領域で、少なくとも0.3の排気ガスのスワール数が達成されることを特徴とする、請求項10に記載の方法。
- 前記気化装置として複数の気化プレート(10)が設けられ、前記還元剤は、全ての気化プレート(10)に衝突するように前記第1の排気ガス導管区間(2)内へ噴射されること特徴とする、請求項10または11に記載の方法。
- 前記還元剤が、前記気化プレート(10)の法線方向に対して最大の鋭角で前記第1の排気ガス導管区間(2)内へ噴射されること特徴とする、請求項12に記載の方法。
- 前記還元剤が、排気ガス流に対して少なくともほぼ直角に前記第1の排気ガス導管区間(2)内に噴射されることを特徴とする、請求項10または11に記載の方法。
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DE102012000597.0 | 2012-01-14 | ||
DE102012000597A DE102012000597A1 (de) | 2012-01-14 | 2012-01-14 | Abgassystem einer Brennkraftmaschine und Verfahren zur Aufbereitung eines in Brennkraftmaschinenabgas eingebrachten Reduktionsmittels |
PCT/EP2013/000067 WO2013104544A2 (de) | 2012-01-14 | 2013-01-11 | Abgassystem einer brennkraftmaschine und verfahren zur aufbereitung eines in brennkraftmaschinenabgas eingebrachten reduktionsmittels |
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EP (1) | EP2802753B1 (ja) |
JP (1) | JP5866031B2 (ja) |
CN (1) | CN104053878B (ja) |
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WO (1) | WO2013104544A2 (ja) |
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DE102015103425B3 (de) | 2015-03-09 | 2016-05-19 | Tenneco Gmbh | Mischvorrichtung |
JP6498993B2 (ja) * | 2015-04-01 | 2019-04-10 | 日野自動車株式会社 | 排気浄化装置 |
KR102520281B1 (ko) * | 2015-09-30 | 2023-04-12 | 로베르트 보쉬 게엠베하 | 스월 혼합형 배기가스 후처리 박스 및 시스템 |
DE102016200328A1 (de) * | 2016-01-14 | 2017-07-20 | Bayerische Motoren Werke Aktiengesellschaft | System zum Nachbehandeln eines Abgases und Kraftfahrzeug |
DE102016101055A1 (de) | 2016-01-21 | 2017-07-27 | Benteler Automobiltechnik Gmbh | SCR-Abgasnachbehandlungsanordnung |
DE102016108113B4 (de) * | 2016-05-02 | 2024-04-25 | Friedrich Boysen Gmbh & Co. Kg | Vorrichtung zum Einbringen und Verteilen einer Flüssigkeit in einen Gasstrom |
DE102016213417A1 (de) | 2016-07-22 | 2018-01-25 | Robert Bosch Gmbh | Vorrichtung zum Vermischen |
DE102016217750A1 (de) * | 2016-09-16 | 2018-03-22 | Continental Automotive Gmbh | Abgasnachbehandlungseinheit |
DE102016223578A1 (de) * | 2016-11-28 | 2018-05-30 | Continental Automotive Gmbh | Vorrichtung zur Verdampfung eines Fluids |
DE102017100132A1 (de) | 2017-01-05 | 2018-07-05 | Eberspächer Exhaust Technology GmbH & Co. KG | Abgasanlage |
KR102089126B1 (ko) * | 2017-05-24 | 2020-03-13 | 주식회사 엘지화학 | 선택적 촉매 환원 시스템 |
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DE102006043225A1 (de) | 2006-09-11 | 2008-03-27 | J. Eberspächer GmbH & Co. KG | Abgasanlage für eine Brennkraftmaschine |
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JP2008267225A (ja) * | 2007-04-18 | 2008-11-06 | Futaba Industrial Co Ltd | 排気浄化装置 |
JP5173308B2 (ja) * | 2007-07-31 | 2013-04-03 | 日野自動車株式会社 | 排気浄化装置 |
DE102007052262B4 (de) * | 2007-11-02 | 2023-11-02 | Bayerische Motoren Werke Aktiengesellschaft | Einrichtung zum Mischen und/oder Verdampfen eines Reduktionsmittels sowie Einrichtung zur Beaufschlagung eines Abgasstroms mit einem Reduktionsmittel |
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JP5308176B2 (ja) * | 2009-02-03 | 2013-10-09 | ヤンマー株式会社 | 排気浄化装置 |
DE102009041345A1 (de) * | 2009-09-15 | 2011-04-21 | Mtu Friedrichshafen Gmbh | System zur Einbringung eines fluiden Zusatzstoffes |
US8713914B2 (en) * | 2009-09-29 | 2014-05-06 | GM Global Technology Operations LLC | Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device |
JP5534925B2 (ja) * | 2010-04-30 | 2014-07-02 | ヤンマー株式会社 | 内燃機関の排気浄化システム |
CN102042063A (zh) * | 2010-09-30 | 2011-05-04 | 中国人民解放军军事交通学院 | 一种用于柴油机尾气氮氧化物净化还原剂的雾化喷射装置 |
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DE102012000597A1 (de) | 2013-07-18 |
US9157358B2 (en) | 2015-10-13 |
US20150047324A1 (en) | 2015-02-19 |
JP2015508469A (ja) | 2015-03-19 |
EP2802753B1 (de) | 2017-04-05 |
WO2013104544A3 (de) | 2013-09-26 |
CN104053878B (zh) | 2017-07-25 |
CN104053878A (zh) | 2014-09-17 |
WO2013104544A2 (de) | 2013-07-18 |
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