WO2000032302A1 - Vorrichtung zum einbringen eines reduktionsmittels in einen abgasrohrabschnitt einer brennkraftmaschine - Google Patents
Vorrichtung zum einbringen eines reduktionsmittels in einen abgasrohrabschnitt einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2000032302A1 WO2000032302A1 PCT/DE1999/002269 DE9902269W WO0032302A1 WO 2000032302 A1 WO2000032302 A1 WO 2000032302A1 DE 9902269 W DE9902269 W DE 9902269W WO 0032302 A1 WO0032302 A1 WO 0032302A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reducing agent
- exhaust pipe
- section
- spray
- spray head
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- 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]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific device
-
- 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
- F01N2610/14—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
- 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 a device for introducing a reducing agent into a
- Exhaust pipe section of an internal combustion engine which leads to a reduction catalytic converter, with a reducing agent line opening into the exhaust pipe.
- EP-A-0 381 2366 As a device for the aftertreatment of exhaust gases, a system is known from EP-A-0 381 236, for example, in which ammonia or urea is metered into the exhaust gas as a reducing agent.
- the reducing agent is injected into a premixing chamber via an injection valve, which opens into the exhaust pipe leading to the reduction catalytic converter.
- an injection valve In this generic device for introducing a reducing agent into an exhaust pipe section
- the premixing chamber forms a reducing agent line opening into the exhaust pipe.
- Reductant is metered in via a metering valve and introduced into the exhaust gas valve via an evaporation device.
- the evaporation device is a metal sleeve provided with a glow plug and has an end opening through which evaporated reducing agent is introduced into the exhaust gas stream.
- the evaporation of the reducing agent is thermal supported, but this solution is technically complicated and requires a high energy requirement for heating and evaporation of the reducing agent.
- a spray head is arranged at the opening end of the reducing agent line.
- the spray head has at least one spray opening and a tapering cross section.
- the aerosol formation of reducing agent can be drastically improved by the at least one spray opening. Because the spray head has a tapering cross-section, even small amounts of reducing agent can be efficiently converted into an aerosol, since the wall film tearing off at the reducing agent line bends again due to the tapering cross-section in front of the spray opening is united. Continuous atomization can thus be achieved in a controlled and controllable manner.
- the cross section of the spray head preferably tapers in accordance with a continuous monotonous function.
- Parabolic functions or the like are given here by way of example, so that the spray head in particular forms a type of spherical cap.
- Spray head at least partially linear, in particular a cone-shaped dome is formed.
- the spray opening should be arranged at a location where there is a closed wall film even with a very small amount of reducing agent.
- the spray opening or each spray opening forms an angle of at least 5 °, particularly preferably of approximately 50 °, with the axis of the spray head.
- the angle of the spray opening or spray openings depends, among other things, on the spray cone formed, the size of the spray openings, the volume throughput of the spray openings and the exhaust pipe diameter and the exhaust gas volume flow.
- a plurality of spray openings are provided on the spray head distributed over the circumference.
- eight spray openings distributed uniformly with respect to the circumference can be provided, so that the individual spray cones practically one
- Form aerosol mist ring which is a special one ensures uniform distribution of the reducing agent in the exhaust gas.
- the number of spray openings, the arrangement, the orientation and / or the cross section of the spray opening or spray openings are advantageously dependent on the type and / or quantity of exhaust gas and the diameter of the exhaust pipe.
- the aerosol formed should also be dispensed quickly from the spray head in order to achieve optimum mixing, so that practically a homogeneous mixture is present when it enters the reduction catalyst. Due to the dependency between spray openings and type and amount of exhaust gas, a simple adaptation to different engines can be achieved, so that the device according to the invention can be used for any engine, in particular for self-igniting internal combustion engines, such as diesel engines, even if these are operated with direct injection.
- Reducing agent line can be acted upon. Because the reducing agent line can be acted on, for example, by means of a pump, the discharge rate and the aerosol formation of the reducing agent can be further improved, in particular if there is a clear pressure difference between the reducing agent line and the exhaust pipe section due to the acting.
- a reducing agent line 4 which is connected to a reducing agent supply (not shown), opens into the exhaust pipe section 2.
- hydrocarbons e.g. Diesel fuel or the like
- urea-water solutions which can be introduced into the reducing agent line, for example, via an injection nozzle, a carburetor device or other metering devices.
- Reduction agent line 4 within the exhaust pipe a bend, since the reducing agent should generally be output in the area of the highest exhaust gas velocity, ie essentially in the middle with respect to the exhaust pipe, and in a direction that corresponds at least approximately to the exhaust gas flow in the exhaust pipe 2.
- reducing agent e.g. urea-water solution
- these pipe or line bends result in a wall film formed tearing off on the reducing agent supply line, due to different flow velocities in the reducing agent line, in particular of air, exhaust gas or other carrier material, by means of which the Reducing agent is driven in the reducing agent line 4.
- a spray head 6 is provided in the embodiment shown at the mouth end of the reducing agent line 4, which can be screwed to the reducing agent line 4, for example, by means of a thread 10.
- the inner wall of the spray head 6 is towards its end as a tapered, e.g. spherical surface 12 formed so that individual components of the torn wall film of urea-water solution are brought together and collected there.
- a tapered e.g. spherical surface 12 formed so that individual components of the torn wall film of urea-water solution are brought together and collected there.
- two spray openings 8 are indicated in the embodiment shown, which form a certain angle with respect to the axis of the spray head.
- the angle formed by the spray openings 8 with respect to the axis is i.a. depending on the exhaust gas flow, the exhaust pipe diameter, the amount of reducing agent and the size and configuration of the spray openings 8.
- the spray head according to the invention drastically improves the quality of the aerosol formation, so that the overall efficiency of the system, i.e. the NOX reduction is improved.
- the system can be adapted to a wide variety of motors by means of parameters relating to the arrangement, size and number of spray openings and the internal tapering of the spray head.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59904445T DE59904445D1 (de) | 1998-12-01 | 1999-07-23 | Vorrichtung zum einbringen eines reduktionsmittels in einen abgasrohrabschnitt einer brennkraftmaschine |
US09/601,354 US6382600B1 (en) | 1998-12-01 | 1999-07-23 | Device for introducing a reducing agent into an exhaust pipe segment of an internal combustion engine |
JP2000584984A JP2002531743A (ja) | 1998-12-01 | 1999-07-23 | 内燃機関の排気管区分内へ還元剤を給送する装置 |
EP99948673A EP1051235B1 (de) | 1998-12-01 | 1999-07-23 | Vorrichtung zum einbringen eines reduktionsmittels in einen abgasrohrabschnitt einer brennkraftmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19855338A DE19855338A1 (de) | 1998-12-01 | 1998-12-01 | Vorrichtung zum Einbringen eines Reduktionsmittels in einen Abgasrohrabschnitt einer Brennkraftmaschine |
DE19855338.2 | 1998-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000032302A1 true WO2000032302A1 (de) | 2000-06-08 |
Family
ID=7889585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/002269 WO2000032302A1 (de) | 1998-12-01 | 1999-07-23 | Vorrichtung zum einbringen eines reduktionsmittels in einen abgasrohrabschnitt einer brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6382600B1 (de) |
EP (1) | EP1051235B1 (de) |
JP (1) | JP2002531743A (de) |
KR (1) | KR100626563B1 (de) |
DE (2) | DE19855338A1 (de) |
WO (1) | WO2000032302A1 (de) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI116156B (fi) | 2000-07-11 | 2005-09-30 | Marioff Corp Oy | Menetelmä ja laite dieselmoottoreiden pakokaasujen puhdistamiseksi |
DE10060808B4 (de) * | 2000-12-07 | 2004-12-02 | Robert Bosch Gmbh | Abgasreinigungsanlage |
DE10231216A1 (de) * | 2002-07-11 | 2004-01-22 | Hydraulik-Ring Gmbh | Einrichtung zur Abgasnachbehandlung von Kraftfahrzeugen, insbesondere Dieselkraftfahrzeugen |
AU2003250960A1 (en) * | 2002-11-21 | 2004-06-15 | Argillon Gmbh | Nozzle, especially for dosing urea |
WO2005028827A1 (ja) | 2003-09-19 | 2005-03-31 | Nissan Diesel Motor Co., Ltd. | エンジンの排気浄化装置 |
US7849674B2 (en) | 2003-09-19 | 2010-12-14 | Nissan Diesel Motor Co., Ltd. | Exhaust emission purifying apparatus for engine |
JP4090972B2 (ja) * | 2003-09-19 | 2008-05-28 | 日産ディーゼル工業株式会社 | エンジンの排気浄化装置 |
WO2005073527A1 (ja) | 2004-02-02 | 2005-08-11 | Nissan Diesel Motor Co., Ltd. | 内燃機関の排気浄化装置 |
EP1712755B1 (de) | 2004-02-02 | 2011-11-23 | Nissan Diesel Motor Co., Ltd. | Vorrichtung zur abgasreinigung eines motors |
JP4904281B2 (ja) * | 2004-10-29 | 2012-03-28 | フィリップ・モリス・ユーエスエイ・インコーポレイテッド | リーンバーン内燃エンジンのNOx還元用の還元剤計量システム |
JP3715985B1 (ja) * | 2004-10-29 | 2005-11-16 | 日産ディーゼル工業株式会社 | 液体還元剤噴射ノズル構造 |
FR2877392A1 (fr) * | 2004-11-02 | 2006-05-05 | Renault Sas | Dispositif de controle de l'etat de fonctionnement d'un convertisseur catalytique d'une ligne d'echappement d'un moteur a combustion interne et moteur comprenant un tel dispositif |
DE102005000969B4 (de) * | 2005-01-07 | 2017-05-24 | Volkswagen Ag | Verfahren zur externen Nacheinspritzung eines Reduktionsmittels in die Abgasreinigungsvorrichtung einer Brennkraftmaschine |
DE102005006053A1 (de) * | 2005-02-10 | 2006-08-17 | Daimlerchrysler Ag | Abgabevorrichtung zur Abgabe eines Zugschlagmediums in eine Abgasleitung einer Brennkraftmaschine |
US7581387B2 (en) * | 2005-02-28 | 2009-09-01 | Caterpillar Inc. | Exhaust gas mixing system |
DE102005019347A1 (de) * | 2005-04-26 | 2006-11-02 | Daimlerchrysler Ag | Abgabevorrichtung sowie Verfahren zur Einbringung von Reduktionsmittel in ein Abgas einer Brennkraftmaschine |
US8173088B2 (en) * | 2010-02-24 | 2012-05-08 | International Engine Intellectual Property Company, Llc | Method, system and apparatus for liquid injection into a gas system |
DE102005059971A1 (de) * | 2005-12-15 | 2007-06-21 | Fisia Babcock Environment Gmbh | Vorrichtung zum Vermischen eines Fluids mit einem großen Gasmengenstrom, insbesondere zum Einbringen eines Reduktionsmittels in ein Stickoxide enthaltendes Rauchgas |
US7497077B2 (en) * | 2006-07-26 | 2009-03-03 | Southwest Research Institute | System and method for dispensing an aqueous urea solution into an exhaust gas stream |
JP4706631B2 (ja) * | 2006-12-20 | 2011-06-22 | 株式会社デンソー | 排気浄化装置 |
JP4906525B2 (ja) | 2007-01-26 | 2012-03-28 | ボッシュ株式会社 | 還元剤噴射弁の詰まり判定装置及び還元剤噴射弁の詰まり判定方法 |
US20080302089A1 (en) * | 2007-06-06 | 2008-12-11 | Paul Way | Dispensing System with Remotely Mounted Metering Device |
US7788907B2 (en) | 2007-06-08 | 2010-09-07 | Ford Global Technologies, Llc | Exhaust injector spray target |
FR2922944B1 (fr) * | 2007-10-26 | 2013-04-26 | Renault Sas | Dispositif d'injection de carburant dans une conduite d'echappement d'un moteur a combustion interne de vehicule automobile |
WO2009071088A1 (en) * | 2007-12-05 | 2009-06-11 | Grundfos Nonox A/S | A nozzle arrangement |
FR2935740A3 (fr) * | 2008-09-09 | 2010-03-12 | Renault Sas | Buse d'injection de vapeur de carburant equipee de deux ouvertures d'injection |
US8225602B2 (en) * | 2009-06-11 | 2012-07-24 | Stanadyne Corporation | Integrated pump and injector for exhaust after treatment |
US20100314470A1 (en) * | 2009-06-11 | 2010-12-16 | Stanadyne Corporation | Injector having swirl structure downstream of valve seat |
DE102009030927A1 (de) * | 2009-06-30 | 2011-01-05 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zur selektiven katalytischen NOx-Reduktion in sauerstoffhaltigem Abgas |
DE102009034072A1 (de) | 2009-07-22 | 2011-01-27 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Einspritzdüse zur Zufuhr von Reduktionsmittel und Vorrichtung zur Behandlung von Abgasen |
JP5655945B2 (ja) * | 2011-06-27 | 2015-01-21 | パナソニックIpマネジメント株式会社 | 電気二重層キャパシタ |
CN102278179A (zh) * | 2011-08-30 | 2011-12-14 | 浙江邦得利汽车环保技术有限公司 | 一种用于空气辅助方式的柴油机scr雾化器 |
JP5738155B2 (ja) * | 2011-11-22 | 2015-06-17 | Udトラックス株式会社 | エンジンの還元剤噴射ノズル |
US9258949B2 (en) * | 2013-06-19 | 2016-02-16 | National Diversified Sales, Inc. | Adjustable drip emitter |
US9482132B2 (en) * | 2013-11-07 | 2016-11-01 | Cummins Emission Solutions, Inc. | Gaseous reductant delivery devices and systems |
DE102013223296A1 (de) * | 2013-11-15 | 2015-05-21 | Robert Bosch Gmbh | Einspritzmodul und Abgasstrang mit Einspritzmodul |
KR101921920B1 (ko) | 2014-06-03 | 2018-11-27 | 포레시아 이미션스 컨트롤 테크놀로지스, 유에스에이, 엘엘씨 | 혼합기 및 정량 주입기 원뿔형부 어셈블리 |
JP6352114B2 (ja) * | 2014-08-29 | 2018-07-04 | 日野自動車株式会社 | 排気浄化システム |
JP6352115B2 (ja) * | 2014-08-29 | 2018-07-04 | 日野自動車株式会社 | 排気浄化システム |
US11585253B2 (en) | 2015-08-07 | 2023-02-21 | Cummins Emission Solutions Inc. | Converging liquid reductant injector nozzle in selective catalytic reduction systems |
WO2017145235A1 (ja) | 2016-02-22 | 2017-08-31 | 日野自動車 株式会社 | 排気浄化システム |
US10933387B2 (en) | 2016-10-21 | 2021-03-02 | Faurecia Emissions Control Technologies, Usa, Llc | Reducing agent mixer |
CN107497605B (zh) * | 2017-09-28 | 2023-08-22 | 广东美的厨房电器制造有限公司 | 油烟机用喷头、喷淋清洗装置和油烟机 |
JP6958464B2 (ja) * | 2018-04-11 | 2021-11-02 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US10316721B1 (en) | 2018-04-23 | 2019-06-11 | Faurecia Emissions Control Technologies, Usa, Llc | High efficiency mixer for vehicle exhaust system |
US10287948B1 (en) | 2018-04-23 | 2019-05-14 | Faurecia Emissions Control Technologies, Usa, Llc | High efficiency mixer for vehicle exhaust system |
US10787946B2 (en) | 2018-09-19 | 2020-09-29 | Faurecia Emissions Control Technologies, Usa, Llc | Heated dosing mixer |
US11268417B2 (en) | 2019-06-26 | 2022-03-08 | Cummins Emission Solutions Inc. | Liquid only lance injector |
DE102020200105A1 (de) * | 2020-01-08 | 2021-07-08 | Robert Bosch Gesellschaft mit beschränkter Haftung | Abgasstrangabschnitt mit Brenner und Kraftfahrzeug mit solch einem Abgasstrangabschnitt |
US20220082040A1 (en) * | 2020-09-14 | 2022-03-17 | Cummins Emission Solutions Inc. | Lance injector assembly with heating element |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1148105B (de) * | 1960-10-21 | 1963-05-02 | Chiron Werke G M B H | Duese zum Verspruehen von fluessigen Pflanzenschutzmitteln |
EP0381236A1 (de) * | 1989-02-02 | 1990-08-08 | Nippon Shokubai Kagaku Kogyo Co. Ltd. | Verfahren zum Reduzieren der Stickoxyde aus Dieselmotorabgasen |
US5431893A (en) * | 1992-02-24 | 1995-07-11 | Hug; Hans T. | Cleaning exhaust gases from combustion installations |
US5603453A (en) * | 1994-12-30 | 1997-02-18 | Lab S.A. | Dual fluid spray nozzle |
EP0849443A1 (de) * | 1996-12-20 | 1998-06-24 | Robert Bosch Gmbh | Gemischabgabevorrichtung |
EP0886043A1 (de) * | 1997-06-21 | 1998-12-23 | Robert Bosch Gmbh | Gemischabgabevorrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US3353335A (en) * | 1965-10-19 | 1967-11-21 | Edward A Caballcro | Exhaust gas treatment |
US5176325A (en) * | 1991-05-14 | 1993-01-05 | Spraying Systems Co. | Air atomizing spray nozzle assembly |
-
1998
- 1998-12-01 DE DE19855338A patent/DE19855338A1/de not_active Withdrawn
-
1999
- 1999-07-23 US US09/601,354 patent/US6382600B1/en not_active Expired - Fee Related
- 1999-07-23 WO PCT/DE1999/002269 patent/WO2000032302A1/de active IP Right Grant
- 1999-07-23 DE DE59904445T patent/DE59904445D1/de not_active Expired - Fee Related
- 1999-07-23 JP JP2000584984A patent/JP2002531743A/ja active Pending
- 1999-07-23 KR KR1020007008237A patent/KR100626563B1/ko not_active IP Right Cessation
- 1999-07-23 EP EP99948673A patent/EP1051235B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1148105B (de) * | 1960-10-21 | 1963-05-02 | Chiron Werke G M B H | Duese zum Verspruehen von fluessigen Pflanzenschutzmitteln |
EP0381236A1 (de) * | 1989-02-02 | 1990-08-08 | Nippon Shokubai Kagaku Kogyo Co. Ltd. | Verfahren zum Reduzieren der Stickoxyde aus Dieselmotorabgasen |
US5431893A (en) * | 1992-02-24 | 1995-07-11 | Hug; Hans T. | Cleaning exhaust gases from combustion installations |
US5603453A (en) * | 1994-12-30 | 1997-02-18 | Lab S.A. | Dual fluid spray nozzle |
EP0849443A1 (de) * | 1996-12-20 | 1998-06-24 | Robert Bosch Gmbh | Gemischabgabevorrichtung |
EP0886043A1 (de) * | 1997-06-21 | 1998-12-23 | Robert Bosch Gmbh | Gemischabgabevorrichtung |
Also Published As
Publication number | Publication date |
---|---|
EP1051235A1 (de) | 2000-11-15 |
US6382600B1 (en) | 2002-05-07 |
DE59904445D1 (de) | 2003-04-10 |
KR100626563B1 (ko) | 2006-09-22 |
DE19855338A1 (de) | 2000-06-08 |
JP2002531743A (ja) | 2002-09-24 |
EP1051235B1 (de) | 2003-03-05 |
KR20010034449A (ko) | 2001-04-25 |
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