WO2005071235A1 - ディーゼルエンジンの排気管燃料添加方式 - Google Patents
ディーゼルエンジンの排気管燃料添加方式 Download PDFInfo
- Publication number
- WO2005071235A1 WO2005071235A1 PCT/JP2005/000507 JP2005000507W WO2005071235A1 WO 2005071235 A1 WO2005071235 A1 WO 2005071235A1 JP 2005000507 W JP2005000507 W JP 2005000507W WO 2005071235 A1 WO2005071235 A1 WO 2005071235A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- exhaust pipe
- fuel injection
- injection nozzle
- diesel engine
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/184—Discharge orifices having non circular sections
-
- 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
- F01N3/20—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]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
-
- 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
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
-
- 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
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
-
- 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
Definitions
- the present invention relates to an aftertreatment device for exhaust gas, which includes a NO storage reduction catalyst, a reduction catalyst such as DPNR, and the like.
- the present invention relates to a diesel engine exhaust pipe fuel addition method suitable for use in a diesel engine provided with a green catalyst.
- Diesel particulate filters are one of the measures to reduce the pollution of diesel-powered vehicles, and can significantly reduce PM.
- the DPF is composed of a heat-resistant filter capable of collecting PM with high efficiency and a filter regeneration device for removing PM trapped by the filter. There is one that regenerates the filter by incineration and removal using a light oil parner.
- This NO storage reduction type catalyst has a low NO
- the above-mentioned NO storage reduction catalyst and DPNR regenerate the NO power formed by adsorbing NO.
- This exhaust pipe fuel addition method for increasing the 2-2 intensities (for example, see Patent Document 1).
- This exhaust pipe fuel The addition method is, for example, to guide the pressurized fuel from the feed pump of the engine, and to install one Hall-type fuel injection nozzle 50 as shown in Figs. 8 and 9 attached to the upstream side of the catalyst in the exhaust pipe, or The fuel is injected from a slit-type fuel injection nozzle 51 as shown in FIG. 10 and FIG.
- the Hall-type fuel injection nozzle 50 is formed, for example, from eight circular injection holes 50a formed at the tip, and the slit-type fuel injection nozzle 51 is formed of one or more holes formed at the tip. Fuel is injected from each of the slit-shaped injection holes 51a. In addition, in order to sufficiently reduce and regenerate the catalyst, it is necessary to instantaneously increase the fuel vapor concentration in the exhaust pipe to achieve a rich air-fuel ratio.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-356137
- one hole-type fuel injection nozzle 50 and a slit-type fuel injection nozzle 51 add fuel to the exhaust pipe.
- the hole-type fuel injection nozzle 50 is formed, for example, from eight circular injection holes 50a formed at the tip, and the slit-type fuel injection nozzle 51 is formed from one or a plurality of slits formed at the tip. Fuel is injected from each of the injection holes 5 la.
- the conventional method of adding fuel to the exhaust pipe of a diesel engine has a problem that the fuel vapor concentration in the exhaust pipe cannot be instantaneously increased, and the reduction and regeneration of the catalyst cannot be sufficiently performed. is there. In response to this, a large amount of fuel must be injected in order to increase the fuel vapor concentration to the concentration required for the reduction and regeneration of the catalyst. .
- the present invention has been made to solve such a problem, and it is intended to prevent the injected fuel from adhering to the inner wall of the exhaust pipe and to reduce the fuel vapor concentration in the exhaust pipe to near the theoretical fuel vapor concentration. It is an object of the present invention to provide an exhaust pipe fuel addition system for a diesel engine, which can sufficiently reduce and regenerate an exhaust gas purification catalyst and thereby dramatically improve fuel efficiency. And
- a means adopted by the present invention is provided with a fuel injection nozzle in an exhaust pipe of a diesel engine, and the fuel injection nozzle power is also provided in the exhaust pipe by injecting fuel.
- the fuel injection nozzles consist of a plurality of injection nozzles and are arranged so that the injection axes intersect each other. is there.
- the injection axis is the center line of the injection indicating the injection direction of each nozzle.
- the fuel injection nozzle also includes a plurality of fuel injection nozzle forces arranged so that the injection axes intersect with each other. Optimum atomization is achieved by collision and mixing, and injection fuel is prevented from adhering to the inner wall of the exhaust pipe.
- the plurality of fuel injection nozzles be disposed at substantially equal intervals in the circumferential direction of the exhaust pipe.
- collision and mixing of the fuel injected from these fuel injection nozzles can be uniformly performed in the exhaust pipe.
- the fuel vapor is uniformly supplied to the catalyst.
- the plurality of fuel injection nozzles are arranged such that the injection axes intersect at substantially one point.
- the collision and mixing of the fuel injected from each nozzle can be performed more reliably, and the injected fuel can be removed from the inner wall of the exhaust pipe. Is further prevented.
- the fuel injection nozzle is desirably formed of a hole-type fuel injection nozzle or a slit-type fuel injection nozzle having one or two injection holes. This means prevents the injected fuel from adhering to the inner wall of the exhaust pipe by colliding and mixing the fuel injected from each fuel injection nozzle with each other, so that the nozzle shape is such that the fuel is linear. It is best to use a Hall-type fuel injection nozzle or slit-type fuel injection nozzle that is injected into the nozzle, and the number of injection holes is one or two, rather than eight as in the past. But more effectively Protrusion and mixing can be performed.
- the fuel injection nozzle is formed such that the injection axis is inclined backward from the center line of the nozzle body.
- each fuel injection nozzle is attached to the exhaust pipe so as to be inclined rearward, which is the flow direction of the injection axial force S exhaust gas.
- the mounting angle of each injection nozzle with respect to the exhaust pipe can be increased, and the mounting can be facilitated structurally.
- the fuel injection nozzle is supplied with fuel from a feed pump of a diesel engine.
- the exhaust pipe fuel addition method of the present diesel engine is particularly suitable when relatively low-pressure fuel is injected from the feed pump.
- the diesel engine exhaust pipe fuel addition method of the present invention includes a fuel injection nozzle in an exhaust pipe of a diesel engine, and injects fuel from the fuel injection nozzle into the exhaust pipe.
- a diesel engine exhaust pipe fuel addition system for reducing and regenerating the disposed exhaust gas purifying catalyst a plurality of fuel injection nozzles are arranged so that the injection axes intersect each other.
- FIG. 1 is a system diagram showing an exhaust pipe fuel addition method for a diesel engine according to the present invention.
- FIG. 2 is a side sectional view showing the fuel injection nozzle of FIG. 1.
- FIG. 3 is a bottom view showing the fuel injection nozzle of FIG. 2 .
- FIG. 4 is a bottom view showing another fuel injection nozzle.
- FIG. 5 is a bottom view showing still another fuel injection nozzle.
- FIG. 6 is a side sectional view showing a mounting state of the fuel injection nozzle of FIG. 1.
- FIG. 7 is a graph showing the operation of the fuel injection nozzle of FIG. 1.
- FIG. 8 is a side sectional view showing a conventional hole-type fuel injection nozzle.
- FIG. 9 is a bottom view showing the hole type fuel injection nozzle of FIG. 8.
- FIG. 10 is a side sectional view showing a conventional slit-type fuel injection nozzle.
- FIG. 11 is a bottom view showing the slit fuel injection nozzle of FIG. 10.
- FIG. 12 is a side sectional view showing a mounting state of a conventional fuel injection nozzle.
- FIG. 13 is a graph showing the operation of a conventional fuel injection nozzle.
- the diesel engine 1 has a common rail 2 for supplying fuel to a fuel injection nozzle in the engine 1, a supply pump 3 for supplying high-pressure fuel to the common rail 2, and a supply pump 3.
- a feed pump 4 for supplying fuel from the fuel tank 5, a fuel filter 6 interposed between the supply pump 3 and the feed pump 4, an ECU 7 for controlling the fuel of the diesel engine 1, and the like are provided.
- ECU7 is engine 1 fuel
- the NO storage reduction catalyst 11 stores NO in exhaust gas flowing through the exhaust pipe 10.
- the stored NO is regenerated by increasing HC, CO, CO or H in exhaust gas.
- the catalyst 11 has a flow direction of the exhaust gas.
- a noble metal for example,
- NO storage agents include, for example, alkali metals such as Li, Na, K, and Cs; and Mg x
- the fuel injection nozzle 20 also has a Hall-type fuel injection nozzle force, for example.
- the fuel injection nozzle 20 has a cylindrical nozzle body 21 and a cylindrical valve shaft 30 inserted into the nozzle body 21 so as to be movable in the axial direction.
- the nozzle body 21 includes a fuel supply hole 22, a valve seat 23 on which a conical seat portion 31 at the tip of the valve shaft 30 seats, a guide hole 24 extending from the valve seat 23, and a circumferential direction from the guide hole 24. And an extended injection hole 25.
- FIG. 1 As shown in FIG.
- the fuel injection nozzle 20 is provided with only one injection hole 25 composed of a small circular hole. As shown in FIG. 2, the fuel injection nozzle 20 is formed such that its injection axis 20a is inclined rearward from the nozzle body centerline 21a. Here, the injection axis 20a is the center line of the injection indicating the injection direction of each nozzle 20.
- the valve shaft 30 is opened and closed by an electromagnetic solenoid (not shown) controlled by the ECU 7.
- the fuel injection nozzle has a hole-type fuel injection nozzle 36 having two injection holes 37 as shown in FIG. 4, and a slit-type fuel injection nozzle 39 having one slit-shaped injection hole 39 as shown in FIG.
- a fuel injection nozzle 38 may be used.
- the injection axis of the injection hole 37 of the hall type fuel injection nozzle 36 and the injection hole 39 of the slit type fuel injection nozzle 38 have the injection axis also having the central line force of the nozzle body similarly to the fuel injection nozzle 20 described above. It is formed to incline backward.
- the above-described fuel injection nozzle is not necessarily limited to the hole-type fuel injection nozzle or the slit-type fuel injection nozzle, and the number of injection holes is not limited to one or two. Absent.
- the two fuel injection nozzles 20 are arranged at regular intervals in the circumferential direction of the exhaust pipe 10, that is, at the diameter position of the exhaust pipe 10.
- the two injection nozzles 20 are attached such that their injection axes 20a are inclined rearward, that is, the flow direction of the exhaust gas, and intersect at substantially one point.
- the fuel injection nozzle 20 is formed such that the injection axis 20a is inclined backward from the nozzle body center line 21a, so that the mounting angle of each fuel injection nozzle 20 with respect to the exhaust pipe 10 is large. And it is structurally easy to install.
- the amount of NO emission from Engine 1 varies depending on the engine speed, accelerator opening, etc.
- ECU 7 shown in FIG. 1 stores the NO emission map for the NO emission from the engine 1 that changes according to the operating state as described above. ECU7 uses this N
- the NO emission of Engine 1 is calculated and stored in catalyst 11.
- the NO discharged from the engine 1 reacts with O in the exhaust gas at the catalyst 11, and
- the ECU 7 determines that the amount of NO stored by the catalyst 11 exceeds a predetermined amount and that the catalyst temperature is lower than the predetermined value.
- the electromagnetic solenoid of the fuel injection nozzle 20 in the exhaust pipe 10 is operated.
- the electromagnetic solenoid is operated, in the fuel injection nozzle 20, the valve shaft 30 shown in FIG. 2 is pulled up, and the seat portion 31 of the valve shaft 30 is separated from the valve seat 23 of the nozzle body 21.
- the pressurized fuel supplied by the feed pump 4 is injected from the fuel supply hole 22 through the guide hole 24, and is injected from the ejection hole 25 into the exhaust pipe 10. Since the feed pump 4 is for supplying fuel from the fuel tank 5 to the supply pump 3, the fuel pressure is relatively low.
- the injection amount and the injection timing of the fuel injection in the exhaust pipe 10 are appropriately controlled. Then, when it is estimated that the reduction regeneration of the catalyst 11 is almost completed, the fuel injection from the fuel injection nozzle 20 is stopped.
- the exhaust pipe fuel addition method of this diesel engine uses two fuel injections. Since the injection nozzles 20 are disposed so that their injection axes 20a intersect, the fuel injected from each injection nozzle 20 collides and mixes with each other to achieve optimal atomization, and the injected fuel is reduced. Adhesion to the inner wall of the exhaust pipe is prevented. Therefore, most of the fuel injected from the fuel injection nozzle 20 is instantaneously vaporized in the exhaust gas.
- the two fuel injection nozzles 20 are arranged at equal intervals in the circumferential direction of the exhaust pipe 10, the collision and mixing of the injected fuel are performed uniformly, and the fuel vapor is uniformly distributed to the catalyst 11. Supplied to The fuel injection nozzles 20 do not necessarily need to be arranged at substantially equal intervals in the circumferential direction. Furthermore, since the injection axes 20a of the two fuel injection nozzles 20 are arranged so as to intersect at approximately one point, the collision and mixing of the injected fuel are performed more reliably, and the injected fuel adheres to the inner wall of the exhaust pipe. Is further prevented. Note that the injection axis 20a does not necessarily need to be disposed so as to intersect at approximately one point.
- fuel is supplied to the fuel injection nozzle 20 from the feed pump 4 of the diesel engine 1.
- the fuel supply source is not necessarily limited to the feed pump.
- the high-pressure fuel supplied from the common rail 2 by, for example, improving the high-pressure injection to the Hall-type fuel injection nozzle. Can also be used.
- the above-described fuel addition method for the exhaust pipe of a diesel engine is based on the NO storage reduction type catalyst.
- the force that was applied to the medium 11 The present invention is not limited to this. Of course, the same can be applied to other reduction-regeneration-type catalysts such as DPNR. Further, the above-described method of adding fuel to the exhaust pipe of the deal engine is merely an example, and is based on the spirit of the present invention. Therefore, various modifications are possible, and they are not excluded from the scope of the present invention.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Fuel-Injection Apparatus (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004013747A JP2005207289A (ja) | 2004-01-22 | 2004-01-22 | ディーゼルエンジンの排気管燃料添加方式 |
JP2004-013747 | 2004-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005071235A1 true WO2005071235A1 (ja) | 2005-08-04 |
Family
ID=34805396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/000507 WO2005071235A1 (ja) | 2004-01-22 | 2005-01-18 | ディーゼルエンジンの排気管燃料添加方式 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060248881A1 (ja) |
JP (1) | JP2005207289A (ja) |
WO (1) | WO2005071235A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007126638A1 (en) * | 2006-03-31 | 2007-11-08 | Caterpillar Inc. | Common engine and exhaust treatment fuel system |
FR2900964A3 (fr) | 2006-05-15 | 2007-11-16 | Renault Sas | Ligne d'echappement comportant une ligne d'injection de carburant et une ligne de soufflage d'air ou de gaz brules |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2031202B1 (en) * | 2003-09-30 | 2010-12-22 | Nissan Diesel Motor Co., Ltd. | Exhaust emission purifying apparatus for engine |
JP4687431B2 (ja) * | 2005-12-07 | 2011-05-25 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US8109077B2 (en) * | 2006-10-11 | 2012-02-07 | Tenneco Automotive Operating Company Inc. | Dual injector system for diesel emissions control |
KR20080102106A (ko) * | 2007-05-18 | 2008-11-24 | 에스케이에너지 주식회사 | 배기정화장치의 재생용 인젝터 |
EP2075428B1 (en) * | 2007-12-25 | 2011-11-16 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Emission control system |
US8141353B2 (en) * | 2008-04-25 | 2012-03-27 | Tenneco Automotive Operating Company Inc. | Exhaust gas additive/treatment system and mixer for use therein |
JP2010138783A (ja) * | 2008-12-11 | 2010-06-24 | Shin Ace:Kk | 内燃機関の後処理装置及び排気ガス浄化装置及びそれを用いた排気ガス浄化方法 |
GB2476827A (en) * | 2010-01-11 | 2011-07-13 | Gm Global Tech Operations Inc | Aftertreatment arrangement with an injection device distributed around the periphery of the exhaust |
JP2013002336A (ja) * | 2011-06-15 | 2013-01-07 | Toyota Industries Corp | 還元剤噴射ノズル及び還元剤噴射ノズルを備えた窒素酸化物浄化システム |
EP2816205B1 (en) * | 2012-02-14 | 2021-08-18 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification device for internal combustion engine |
JP6560093B2 (ja) * | 2015-10-16 | 2019-08-14 | ヤンマー株式会社 | 船舶の排気ガス浄化装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002531745A (ja) * | 1998-12-01 | 2002-09-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関の排ガスの後処理装置 |
JP2002276344A (ja) * | 2001-03-22 | 2002-09-25 | Tokyo Gas Co Ltd | 希薄燃焼ガスエンジンの排気浄化方法及び装置 |
JP2003083055A (ja) * | 2001-09-12 | 2003-03-19 | Denso Corp | 排気浄化装置 |
JP2003201836A (ja) * | 2001-12-28 | 2003-07-18 | Nippon Soken Inc | 排気用触媒の燃料供給装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5406790A (en) * | 1992-12-11 | 1995-04-18 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification device for an engine |
US5522218A (en) * | 1994-08-23 | 1996-06-04 | Caterpillar Inc. | Combustion exhaust purification system and method |
DE19806265C5 (de) * | 1998-02-16 | 2004-07-22 | Siemens Ag | Dosiersystem |
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 |
US6895747B2 (en) * | 2002-11-21 | 2005-05-24 | Ford Global Technologies, Llc | Diesel aftertreatment systems |
US6761025B1 (en) * | 2002-12-19 | 2004-07-13 | Caterpillar Inc. | Enhanced ammonia feed control for selective catalytic reduction |
DE102004015805B4 (de) * | 2004-03-29 | 2007-07-26 | J. Eberspächer GmbH & Co. KG | Vorrichtung zum Einbringen einer Flüssigkeit in einen Abgasstrang |
US7062904B1 (en) * | 2005-02-16 | 2006-06-20 | Eaton Corporation | Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines |
-
2004
- 2004-01-22 JP JP2004013747A patent/JP2005207289A/ja active Pending
-
2005
- 2005-01-18 WO PCT/JP2005/000507 patent/WO2005071235A1/ja active Application Filing
-
2006
- 2006-07-24 US US11/459,520 patent/US20060248881A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002531745A (ja) * | 1998-12-01 | 2002-09-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関の排ガスの後処理装置 |
JP2002276344A (ja) * | 2001-03-22 | 2002-09-25 | Tokyo Gas Co Ltd | 希薄燃焼ガスエンジンの排気浄化方法及び装置 |
JP2003083055A (ja) * | 2001-09-12 | 2003-03-19 | Denso Corp | 排気浄化装置 |
JP2003201836A (ja) * | 2001-12-28 | 2003-07-18 | Nippon Soken Inc | 排気用触媒の燃料供給装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007126638A1 (en) * | 2006-03-31 | 2007-11-08 | Caterpillar Inc. | Common engine and exhaust treatment fuel system |
US7552584B2 (en) | 2006-03-31 | 2009-06-30 | Caterpillar Inc. | Common engine and exhaust treatment fuel system |
FR2900964A3 (fr) | 2006-05-15 | 2007-11-16 | Renault Sas | Ligne d'echappement comportant une ligne d'injection de carburant et une ligne de soufflage d'air ou de gaz brules |
Also Published As
Publication number | Publication date |
---|---|
JP2005207289A (ja) | 2005-08-04 |
US20060248881A1 (en) | 2006-11-09 |
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