JP2004197746A - 選択触媒還元用の高度アンモニア供給制御 - Google Patents
選択触媒還元用の高度アンモニア供給制御 Download PDFInfo
- Publication number
- JP2004197746A JP2004197746A JP2003420109A JP2003420109A JP2004197746A JP 2004197746 A JP2004197746 A JP 2004197746A JP 2003420109 A JP2003420109 A JP 2003420109A JP 2003420109 A JP2003420109 A JP 2003420109A JP 2004197746 A JP2004197746 A JP 2004197746A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- dose
- reducing agent
- gas stream
- 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.)
- Granted
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
- 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]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
-
- 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
- F01N13/0093—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 of the same type
-
- 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
- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
-
- 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
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/021—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting ammonia NH3
-
- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
- F01N2610/146—Control thereof, e.g. control of injectors or injection valves
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
-
- 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
Abstract
【解決手段】 圧縮点火エンジンの選択触媒還元による排出制御システムに、排出制御性能を向上させるための高度なアンモニア供給制御が設けられている。還元剤は2つのドーズで供給され、反応器には2つの反応床が設けられている。第2ドーズの反応剤は、第1および第2の反応床の間に供給される。
【選択図】 図1
Description
12 圧縮点火エンジン
14 排気システム
16 排気ガス流れ
18 排気マニフォールド
20 排気ガス導管
30 メイン燃焼セクション
32 燃焼チャンバ
34 燃焼空気システム
36 燃焼空気導管
38 吸気マニフォールド
50 還元剤供給源
52、54 供給パイプ
60、62 計量手段
70 反応器
72、74 反応床
76 入口
78 出口
82 中間ゾーン
90 電子制御ユニット
92、96 センサ
94、98、100、102 信号接続部
104 電気接続部
Claims (5)
- エンジンの排気システム内で還元剤を用いて排気ガス流れを処理するための排出制御システムであって、
エンジンの少なくとも1つの動作条件を決定するための第1センサと、
排気ガス流れの処理に必要な還元剤の計算量を決定するためにセンサに接続された制御ユニットと、
還元剤供給源と、
排気流れに第1ドーズの還元剤を供給するための第1計量手段であって、前記第1ドーズの還元剤は排気ガス流れの処理に必要な還元剤の計算量よりも少ない第1計量手段と、
第1ドーズの還元剤とともに排気ガス流れを受け取る入口を有する反応器と、
反応器入口の下流で排気流れに第2ドーズの還元剤を供給するための第2計量手段と、を備える排出制御システム。 - 排気ガス流れを生成し、排気ガス流れと混合される還元剤によって排気ガス流れが処理されて排気ガス流れを転化するエンジンであって、
複数の燃焼チャンバを備える燃焼セクションと、
前記燃焼チャンバへ燃焼空気を供給する燃焼空気システムであって、吸気マニフォールドと、前記吸気マニフォールドへ燃焼空気を供給するための燃焼空気導管とを備える燃焼空気システムと、
前記燃焼チャンバから排気ガスを受け取る排気システムであって、排気マニフォールドと、エンジンからの排気ガス流れ内の排気ガスを導くための排気導管とを備える排気システムと、
排出制御システムであって、
還元剤供給源と、
前記排気導管と流体流れを連通する第1および第2の反応床を有する反応器と、
排気ガス流れの処理に必要な還元剤の計算量を決定するための第1センサおよび前記第1センサに接続された制御ユニットと、
還元剤の計算量よりも少ない第1ドーズの還元剤を排気流れに供給するための第1計量手段と、
第2ドーズの還元剤を排気流れへ供給するための前記反応床の間の第2計量手段と、
排気流れの特性を決定するための第2センサであって、前記第2ドーズの還元剤の量を決定するために前記制御ユニットが接続された第2センサと、を含む排出制御システムと、を備えるエンジン。 - 排気ガス流れの特性を決定するための第2センサであって、前記第2ドーズの還元剤の量を決定するために前記制御ユニットが前記第2センサに接続され、反応器は、第1反応床および第2反応床と、前記第2センサと、前記第1および第2反応床の間に配置された前記第2計量手段と、を備え、第1計量手段は、前記還元剤の前記計算量の約90%の量で前記第1ドーズを分配する流量制御デバイスである、第2センサと、
出口を有する前記反応器であって、第2センサは、反応器によって排出されるNOX排出のレベルを検出するために前記出口に関係付けられ、前記センサは、前記第2ドーズ中の還元剤の量を決定するために前記制御ユニットに接続され、前記第1センサは、エンジン速度、燃焼消費率、ブースト、および負荷の1つを検出するように構成された、前記反応器と、
第1反応床および第2反応床と、前記第1反応床および前記第2反応床の間に配置された前記第2の計量手段と、を備える前記反応器と、
前記還元剤の前記計算された必要量の約90パーセント(90%)である前記第1ドーズと、の少なくとも1つを備える請求項1あるいは2に記載の装置。 - 排気ガス流れを生成することができ、排気ガス流れと混合される還元剤によって排気ガス流れが処理されて排気ガス流れを転化する圧縮点火エンジンのための排出制御システムの効率を高めるための方法であって、
排気ガス流れを処理するための還元剤の必要な量を決定するステップと、
排気ガス流れに第1ドーズの還元剤を供給するステップであって、前記第1ドーズは必要な量よりも少ないステップと、
排気ガス流れを第1ドーズの還元剤と反応させるステップと、
排気ガス流れを第1ドーズの還元剤と反応させた後に、排気ガス流れに第2ドーズの還元剤を供給するステップと、
排気ガス流れを第2ドーズの還元剤と反応させるステップと、を含む方法。 - 排気ガス流れを第1ドーズと反応させる前記ステップの有効性に基づいて第2ドーズの量を決定するステップと、
ブースト圧力、燃焼消費率、エンジン速度、およびエンジン負荷を含むエンジン動作条件の群からの少なくとも1つのエンジン動作条件を検出することを含む、必要な量を決定する前記ステップと、
前記第1ドーズの還元剤を、必要な量を決定する前記ステップから必要な量の約90パーセント(90%)の量で供給し、排気ガス流れを第1ドーズと反応させる前記ステップの有効性に基づいて第2ドーズの量を決定すること、排気ガス流れを第2ドーズの還元剤と反応させる前記ステップ後に排気ガス流れのNOX含有量を決定して前記NOX含有量の決定に応答して第2ドーズの量を決定すること、排気ガス流れを第1ドーズの還元剤と反応させる前記ステップと排気ガス流れを第2ドーズの還元剤と反応させる前記ステップとの間で排気ガス流れのNOX含有量を決定して前記NOX含有量の決定に応答して第2ドーズの量を決定すること、の少なくとも1つを行なうステップと、のうちの少なくとも1つを含む請求項7に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/325,319 US6761025B1 (en) | 2002-12-19 | 2002-12-19 | Enhanced ammonia feed control for selective catalytic reduction |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004197746A true JP2004197746A (ja) | 2004-07-15 |
JP4471643B2 JP4471643B2 (ja) | 2010-06-02 |
Family
ID=32468974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003420109A Expired - Fee Related JP4471643B2 (ja) | 2002-12-19 | 2003-12-17 | 選択触媒還元用の高度アンモニア供給制御 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6761025B1 (ja) |
JP (1) | JP4471643B2 (ja) |
DE (1) | DE10354843A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010067805A1 (ja) * | 2008-12-08 | 2010-06-17 | 三菱重工業株式会社 | 排ガス浄化装置 |
JP2010172855A (ja) * | 2009-01-30 | 2010-08-12 | Mitsubishi Heavy Ind Ltd | 排ガス浄化装置 |
JP2016014387A (ja) * | 2014-06-12 | 2016-01-28 | トヨタ自動車株式会社 | 尿素水供給システム |
JP2016217301A (ja) * | 2015-05-25 | 2016-12-22 | 日本特殊陶業株式会社 | アンモニア発生装置およびアンモニア発生制御装置 |
JP2018013049A (ja) * | 2016-07-19 | 2018-01-25 | トヨタ自動車株式会社 | 内燃機関の排気浄化システム |
KR20180108478A (ko) * | 2017-03-24 | 2018-10-04 | 로베르트 보쉬 게엠베하 | 2개의 계량공급 밸브를 갖춘 scr 시스템의 제어 방법 |
KR20180119496A (ko) * | 2017-04-25 | 2018-11-02 | 로베르트 보쉬 게엠베하 | 2개 이상의 계량 밸브를 갖는 scr 시스템 작동 방법 |
US10300435B2 (en) | 2015-02-26 | 2019-05-28 | Ngk Spark Plug Co., Ltd. | Ammonia generation apparatus and ammonia generation control apparatus |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001303934A (ja) * | 1998-06-23 | 2001-10-31 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
US6698191B2 (en) * | 2001-08-09 | 2004-03-02 | Ford Global Technologies, Llc | High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature |
JP4284087B2 (ja) * | 2003-02-18 | 2009-06-24 | 本田技研工業株式会社 | 内燃機関の排気ガス浄化装置 |
JP2005207289A (ja) * | 2004-01-22 | 2005-08-04 | Hino Motors Ltd | ディーゼルエンジンの排気管燃料添加方式 |
US6996975B2 (en) * | 2004-06-25 | 2006-02-14 | Eaton Corporation | Multistage reductant injection strategy for slipless, high efficiency selective catalytic reduction |
DE102004031624A1 (de) * | 2004-06-30 | 2006-02-02 | Robert Bosch Gmbh | Verfahren zum Betreiben eines zur Reinigung des Abgases einer Brennkraftmaschine verwendeten Katalysators und Vorrichtung zur Durchführung des Verfahrens |
US20060112678A1 (en) * | 2004-11-04 | 2006-06-01 | Eaton Corporation | Multiple reactant multiple catalyst selective catalytic reduction for NOx abatement in internal combustion engines |
US20090065370A1 (en) * | 2004-12-28 | 2009-03-12 | Nair Balakrishnan G | Ammonia gas sensor method and device |
US7442555B2 (en) * | 2004-12-28 | 2008-10-28 | Nair Balakrishnan G | Ammonia gas sensor method and device |
US20060251548A1 (en) * | 2005-05-06 | 2006-11-09 | Willey Ray L | Exhaust aftertreatment device |
US20070044456A1 (en) * | 2005-09-01 | 2007-03-01 | Devesh Upadhyay | Exhaust gas aftertreatment systems |
US7485272B2 (en) * | 2005-11-30 | 2009-02-03 | Caterpillar Inc. | Multi-stage system for selective catalytic reduction |
US20070175205A1 (en) * | 2006-01-31 | 2007-08-02 | Caterpillar Inc. | System for selective homogeneous charge compression ignition |
EP2035824A2 (en) * | 2006-06-14 | 2009-03-18 | Ceramatec, Inc. | Ammonia gas sensor with dissimilar electrodes |
US7610750B2 (en) | 2006-07-25 | 2009-11-03 | Gm Global Technology Operations, Inc. | Method and apparatus for monitoring a urea injection system in an exhaust aftertreatment system |
US7426825B2 (en) * | 2006-07-25 | 2008-09-23 | Gm Global Technology Operations, Inc. | Method and apparatus for urea injection in an exhaust aftertreatment system |
US8109077B2 (en) * | 2006-10-11 | 2012-02-07 | Tenneco Automotive Operating Company Inc. | Dual injector system for diesel emissions control |
US8069655B2 (en) * | 2007-08-13 | 2011-12-06 | Cummins Filtration Ip, Inc. | Apparatus, system, and method for using a fraction of engine exhaust to deliver a dosant |
US20090139318A1 (en) * | 2007-12-04 | 2009-06-04 | Caterpillar Inc. | Systems and methods for monitoring the quality of a reducing agent |
JP5221647B2 (ja) * | 2008-04-18 | 2013-06-26 | 本田技研工業株式会社 | 内燃機関の排気浄化装置 |
US20100074814A1 (en) * | 2008-09-25 | 2010-03-25 | Cummins Filtration Ip Inc. | Reductant decomposition mixer and method for making the same |
US7976788B2 (en) * | 2008-10-16 | 2011-07-12 | Cummins Filtration Ip, Inc. | Detachable decomposition reactor with an integral mixer |
US20100146948A1 (en) * | 2008-12-17 | 2010-06-17 | Caterpillar Inc. | Exhaust system promoting decomposition of reductants into gaseous products |
JP5297215B2 (ja) * | 2009-01-30 | 2013-09-25 | 三菱重工業株式会社 | 排ガス浄化装置 |
US8114364B2 (en) * | 2009-02-02 | 2012-02-14 | Cummins Filtration Ip, Inc. | Increased reductant decomposition reactor robustness through the use of a hydrolytic catalyst coating |
DE102009000804B4 (de) * | 2009-02-12 | 2013-07-04 | Ford Global Technologies, Llc | Abgasreinigungsanlage |
US8661791B2 (en) * | 2009-10-12 | 2014-03-04 | GM Global Technology Operations LLC | Systems and methods for controlling regeneration of nitrogen oxide adsorbers |
US8800272B2 (en) * | 2011-07-15 | 2014-08-12 | Ford Global Technologies, Llc | System and method for processing NHD slippage of a selective catalyst reduction system |
US8997461B2 (en) | 2012-05-21 | 2015-04-07 | Cummins Emission Solutions Inc. | Aftertreatment system having two SCR catalysts |
US9021787B2 (en) * | 2012-09-05 | 2015-05-05 | Mi Yan | Fluid delivery apparatus with flow rate sensing means |
US9335004B2 (en) | 2012-12-07 | 2016-05-10 | General Electric Company | Method and system for use in combustion product control |
DE202013101028U1 (de) | 2013-03-07 | 2013-03-18 | Ford Global Technologies, Llc. | System zur selektiven katalytischen Reduktion |
DE102013203876A1 (de) | 2013-03-07 | 2014-09-11 | Ford Global Technologies, Llc | System zur selektiven katalytischen Reduktion |
DE102014201077B4 (de) | 2013-03-07 | 2023-02-09 | Ford Global Technologies, Llc | Abgasreinigungssystem zur selektiven katalytischen Reduktion |
DE102015000955A1 (de) | 2014-01-20 | 2015-07-23 | Cummins Inc. | Systeme und Verfahren zur Minderung von NOx- und HC-Emissionen |
US9512761B2 (en) | 2014-02-28 | 2016-12-06 | Cummins Inc. | Systems and methods for NOx reduction and aftertreatment control using passive NOx adsorption |
WO2015188329A1 (en) * | 2014-06-11 | 2015-12-17 | Tenneco Automotive Operating Company Inc. | Fluid delivery system with line pressure control valve |
EP2955351B1 (en) * | 2014-06-12 | 2017-07-26 | Toyota Jidosha Kabushiki Kaisha | Filling of an urea water supply system |
US9624805B2 (en) * | 2014-08-26 | 2017-04-18 | Caterpillar Inc. | Aftertreatment system having dynamic independent injector control |
JP6330614B2 (ja) * | 2014-10-17 | 2018-05-30 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置の故障判定装置 |
CN105673154B (zh) | 2014-11-21 | 2019-11-08 | 天纳克(苏州)排放系统有限公司 | 共轨、该共轨的应用、尿素喷射系统及其控制方法 |
EP3228839B1 (en) | 2014-11-21 | 2019-09-25 | Tenneco (Suzhou) Emission System Co.,Ltd. | Common rail assembly, urea injection system and application thereof |
US9903247B2 (en) * | 2015-12-31 | 2018-02-27 | Cummins Emission Solutions Inc. | Reductant apportionment for multi-dosing architectures |
BR112019021375A2 (pt) * | 2017-04-13 | 2020-05-05 | Cummins Emission Solutions Inc | módulo de dosagem para uso em sistemas de tratamento de gases de escape para motores de combustão interna |
SE541093C2 (en) * | 2017-07-24 | 2019-04-02 | Scania Cv Ab | Dosing system for reduction agent |
DE102021203282A1 (de) | 2021-03-31 | 2022-03-03 | Vitesco Technologies GmbH | Verfahren zum Betreiben einer Oxidationskatalysatorvorrichtung einer Brennkraftmaschine und Abgastrakt einer Brennkraftmaschine |
DE102021203281B4 (de) | 2021-03-31 | 2023-03-02 | Vitesco Technologies GmbH | Verfahren zum Ermitteln des Ammoniakgehalts im Abgas einer Brennkraftmaschine und Abgastrakt einer Brennkraftmaschine |
DE102021203279B3 (de) | 2021-03-31 | 2022-05-19 | Vitesco Technologies GmbH | Verfahren zum Ermitteln des Ammoniakgehalts im Abgas einer Brennkraftmaschine und Abgastrakt einer Brennkraftmaschine |
US11725603B1 (en) * | 2022-03-07 | 2023-08-15 | Ford Global Technologies, Llc | Systems and methods for air-fuel ratio imbalance monitor |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3896616A (en) * | 1972-04-21 | 1975-07-29 | Engelhard Min & Chem | Process and apparatus |
DE2401417C2 (de) | 1974-01-12 | 1981-10-01 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zur Entgiftung der Abgase einer Brennkraftmaschine |
US4403473A (en) | 1981-06-22 | 1983-09-13 | Caterpillar Tractor Co. | Ammonia/fuel ratio control system for reducing nitrogen oxide emissions |
US5120695A (en) | 1989-07-28 | 1992-06-09 | Degusaa Aktiengesellschaft (Degussa Ag) | Catalyst for purifying exhaust gases from internal combustion engines and gas turbines operated at above the stoichiometric ratio |
US5201802A (en) * | 1991-02-04 | 1993-04-13 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification system for an internal combustion engine |
CA2088713C (en) | 1992-02-24 | 1999-11-16 | Hans Thomas Hug | Cleaning exhaust gases from combustion installations |
US5224334A (en) | 1992-03-09 | 1993-07-06 | Radian Corporation | Low NOx cogeneration process and system |
DE4217552C1 (ja) * | 1992-05-27 | 1993-08-19 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
US5367875A (en) | 1992-12-07 | 1994-11-29 | Coltec Industries Inc | Automated catalytic reduction system |
DE4315278A1 (de) * | 1993-05-07 | 1994-11-10 | Siemens Ag | Verfahren und Einrichtung zur Dosierung eines Reduktionsmittels in ein stickoxidhaltiges Abgas |
JP3246086B2 (ja) | 1993-06-11 | 2002-01-15 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
DE4334071C1 (de) | 1993-10-06 | 1995-02-09 | Siemens Ag | Verfahren zur Verminderung der Stickoxidkonzentration im Abgas einer Brennkraftmaschine oder einer Verbrennungsanlage |
ES2122602T3 (es) | 1994-08-10 | 1998-12-16 | Siemens Ag | Procedimiento para la conversion catalitica de oxidos de nitrogeno contenidos en el gas de escape de un motor de combustion interna. |
JP3427581B2 (ja) | 1994-09-13 | 2003-07-22 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US6471924B1 (en) * | 1995-07-12 | 2002-10-29 | Engelhard Corporation | Method and apparatus for NOx abatement in lean gaseous streams |
JPH09133032A (ja) | 1995-11-10 | 1997-05-20 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
DE19543219C1 (de) * | 1995-11-20 | 1996-12-05 | Daimler Benz Ag | Verfahren zum Betreiben eines Dieselmotors |
DE19629163C1 (de) * | 1996-07-19 | 1997-10-09 | Daimler Benz Ag | Verfahren und Vorrichtung zum stickoxidemissionsarmen Betrieb eines Verbrennungsmotors |
DE19703796C2 (de) | 1997-02-01 | 2000-03-23 | Dornier Gmbh | Sensor zum selektiven Nachweis von Ammoniak in NO¶x¶-haltigen, sauerstoffreichen Gasen |
US5976475A (en) | 1997-04-02 | 1999-11-02 | Clean Diesel Technologies, Inc. | Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
DE19740702C1 (de) | 1997-09-16 | 1998-11-19 | Siemens Ag | Verfahren und Vorrichtung zum Betrieb einer mit Luftüberschuß arbeitenden Brennkraftmaschine |
US6052989A (en) | 1998-01-23 | 2000-04-25 | Ford Global Technologies, Inc. | Emission control system for internal combustion engines |
US6125629A (en) * | 1998-11-13 | 2000-10-03 | Engelhard Corporation | Staged reductant injection for improved NOx reduction |
US6182444B1 (en) * | 1999-06-07 | 2001-02-06 | Ford Global Technologies, Inc. | Emission control system |
US6293097B1 (en) * | 1999-08-16 | 2001-09-25 | Ford Global Technologies, Inc. | On-board reductant delivery system |
US6269633B1 (en) * | 2000-03-08 | 2001-08-07 | Ford Global Technologies, Inc. | Emission control system |
-
2002
- 2002-12-19 US US10/325,319 patent/US6761025B1/en not_active Expired - Fee Related
-
2003
- 2003-11-24 DE DE10354843A patent/DE10354843A1/de not_active Withdrawn
- 2003-12-17 JP JP2003420109A patent/JP4471643B2/ja not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010067805A1 (ja) * | 2008-12-08 | 2010-06-17 | 三菱重工業株式会社 | 排ガス浄化装置 |
CN102165154A (zh) * | 2008-12-08 | 2011-08-24 | 三菱重工业株式会社 | 废气净化装置 |
JPWO2010067805A1 (ja) * | 2008-12-08 | 2012-05-17 | 三菱重工業株式会社 | 排ガス浄化装置 |
JP2010172855A (ja) * | 2009-01-30 | 2010-08-12 | Mitsubishi Heavy Ind Ltd | 排ガス浄化装置 |
JP2016014387A (ja) * | 2014-06-12 | 2016-01-28 | トヨタ自動車株式会社 | 尿素水供給システム |
US10300435B2 (en) | 2015-02-26 | 2019-05-28 | Ngk Spark Plug Co., Ltd. | Ammonia generation apparatus and ammonia generation control apparatus |
JP2016217301A (ja) * | 2015-05-25 | 2016-12-22 | 日本特殊陶業株式会社 | アンモニア発生装置およびアンモニア発生制御装置 |
JP2018013049A (ja) * | 2016-07-19 | 2018-01-25 | トヨタ自動車株式会社 | 内燃機関の排気浄化システム |
KR20180108478A (ko) * | 2017-03-24 | 2018-10-04 | 로베르트 보쉬 게엠베하 | 2개의 계량공급 밸브를 갖춘 scr 시스템의 제어 방법 |
KR102499743B1 (ko) * | 2017-03-24 | 2023-02-15 | 로베르트 보쉬 게엠베하 | 2개의 계량공급 밸브를 갖춘 scr 시스템의 제어 방법 |
KR20180119496A (ko) * | 2017-04-25 | 2018-11-02 | 로베르트 보쉬 게엠베하 | 2개 이상의 계량 밸브를 갖는 scr 시스템 작동 방법 |
KR102573666B1 (ko) * | 2017-04-25 | 2023-09-04 | 로베르트 보쉬 게엠베하 | 2개 이상의 계량 밸브를 갖는 scr 시스템 작동 방법 |
Also Published As
Publication number | Publication date |
---|---|
US20040118109A1 (en) | 2004-06-24 |
US6761025B1 (en) | 2004-07-13 |
JP4471643B2 (ja) | 2010-06-02 |
DE10354843A1 (de) | 2004-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4471643B2 (ja) | 選択触媒還元用の高度アンモニア供給制御 | |
US6871490B2 (en) | Emissions control system for increasing selective catalytic reduction efficiency | |
CN101220761B (zh) | 用于选择性催化还原的多种还原剂的处理 | |
CN106471228B (zh) | 具有双闭环还原剂给料器的废气后处理 | |
US8061123B2 (en) | Method and system of thermal management in an exhaust system | |
CN101149008B (zh) | 氨蒸汽存储和排放系统和方法 | |
US7320781B2 (en) | Method for adjusting a reductant used in an internal combustion engine to reduce NOx | |
CN102312712B (zh) | 确定选择催化还原催化剂的老化并控制其的系统和方法 | |
US20110072798A1 (en) | NOx CONTROL REQUEST FOR NH3 STORAGE CONTROL | |
JP4727376B2 (ja) | 内燃機関排気ガス処理装置の作動方法および装置 | |
US20070163239A1 (en) | Internal combustion engine with exhaust treatment system | |
CN101600862B (zh) | 压缩点火式内燃机的排气净化装置 | |
JP2008190529A (ja) | 排気ガス処理システム診断装置及び方法 | |
CN102859170A (zh) | 氨燃烧内燃机 | |
CN101149007A (zh) | 发动机停止时的氨蒸气管理系统和方法 | |
CN114382578A (zh) | 用于控制内燃机的废气的氢气含量的控制设备 | |
JP2004156615A (ja) | 内燃機関の排気後処理システム | |
US20100281851A1 (en) | Exhaust gas emissions reactor and method of treating exhaust gas | |
JP2004156614A (ja) | エンジンの排気後処理システム及びその方法 | |
US20080003163A1 (en) | System and method for ammonia production | |
JPH11270329A (ja) | 内燃機関の還元剤供給装置 | |
US10746071B2 (en) | Engine aftertreatment system | |
US20190308886A1 (en) | System For Neutralizing The PH Of Exhaust Condensate | |
US9084968B2 (en) | After treatment device of engine | |
JP2902166B2 (ja) | 排気過給機付内燃機関の脱硝装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20061211 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090730 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090731 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20091030 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20091105 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091126 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100219 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100302 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130312 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130312 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140312 Year of fee payment: 4 |
|
LAPS | Cancellation because of no payment of annual fees |