EP1020620B1 - Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine - Google Patents
Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1020620B1 EP1020620B1 EP99124898A EP99124898A EP1020620B1 EP 1020620 B1 EP1020620 B1 EP 1020620B1 EP 99124898 A EP99124898 A EP 99124898A EP 99124898 A EP99124898 A EP 99124898A EP 1020620 B1 EP1020620 B1 EP 1020620B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ozone
- exhaust
- exhaust gas
- ozone generator
- catalyst
- 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.)
- Expired - Lifetime
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
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0231—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
-
- 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
- F01N3/0892—Electric or magnetic treatment, e.g. dissociation of noxious components
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/38—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air
Definitions
- the invention relates to a device for cleaning the exhaust gas Internal combustion engine according to the preamble of claim 1.
- Internal combustion engine is preferably a gasoline engine, in particular around a diesel engine.
- the exhaust gases from an internal combustion engine contain pollutants, in particular C02, HC, NOx and SOx, with mainly carbon-containing particles such as soot particles accumulate in the exhaust gas, which is due to incomplete combustion, especially of diesel internal combustion engines, arise.
- US-A-5806305 shows an internal combustion engine with an exhaust gas treatment unit, wherein ozone is added to the exhaust gas before the treatment.
- the supplied ozone will generated by means of an ozone generator, for example by irradiating air with Frequency suitable for UV light.
- Gasoline engines or Diesel engines are considered, the exhaust gas treatment unit being replaced by a catalytic converter including a three-way catalyst.
- JP-A-57030524 shows the improvement in regeneration of an exhaust gas flowed through the particulate filter by adding ozone to the exhaust gas, whereby the Burning of the carbon particles collected in the filter is improved.
- the addition of ozone takes place when the filter has reached a predetermined filling level.
- EP-A-0341832 describes the treatment of the exhaust gases of a diesel internal combustion engine with a CRT (continuous regeneration trap) system that is highly efficient at low temperatures.
- the invention has for its object the effectiveness reducing the pollutants to further improve the device.
- the ozone generator is equipped with an oxygen ion conductor provided so that the oxygen concentration in the ozone generator increases becomes what improves the efficiency of the device.
- Ozone generators of different designs can be used and function can be used, which is characterized by performance, a safe function and distinguish an advantageous arrangement and a small design and in simply on or in an agas line or on or in an in the exhaust line Have the opening supply line integrated.
- the ozone generator can e.g. by a UV lamp, by a microwave generator or an electric one Spark discharge path are formed.
- the exhaust system is in the form of an exhaust line 2 an internal combustion engine 3 arranged.
- exhaust gas from the Internal combustion engine 3 ejected, the exhaust pipe 2 in the flow direction 4th flows through.
- a catalytic converter 5, in particular a in the exhaust gas line 2 Oxidation catalyst, and / or a gas mixer 6 arranged, if both Parts 5, 6 are provided, the gas mixer 6 can be arranged upstream of the catalyst 5 can that the exhaust gas first the gas mixer 6 and then the catalyst 5th flows through.
- the catalyst 5 and the gas mixer 6 are of conventional construction and each arranged in a housing 5a between pipe sections 2a, 2b, which form the exhaust pipe 2 in front of and behind the housing 5a.
- the catalyst 5 and the Gas mixers 6 form an exhaust gas treatment unit 6a.
- An ozone generator 7 is provided which continuously or intermittently applies ozone emits the exhaust gas and that in a flow direction 4 before Catalyst 5 and / or gas mixer 6 located delivery point 8, in particular has a distance b from the treatment unit 6a.
- the ozone generator 7 is from the exhaust gas line 2 spaced and thus arranged outside of this, by a Feed line 9 is connected to the exhaust line 2.
- the ozone generator 7 forms the ozone from fresh air or oxygen supplied.
- the ozone generator 7 can be assigned to a pump, not shown in FIG. 1, which pumps the ozone if necessary with the supply air 11 to the exhaust pipe 2.
- the ozone generator 7 can have a display device 12 which has the function or indicates the amount of ozone supplied.
- FIGS. 2 to 4 show possible embodiments of the Ozone generator.
- the Oxygen concentration uses an oxygen ion conductor 14 on the outside 14a is supplied with fresh air or exhaust gas by means of a pipe 15.
- the Oxygen ion conductor 14 is the oxygen of the fresh air or the exhaust gas via the Inside 14 b of the ion conductor 14 transported into a chamber 16 so that it there too a high oxygen concentration.
- a potential is applied to the ion conductor 14 by means of electrical leads 17a, 17b placed, which causes the oxygen transport.
- the chamber 16 is through a Housing 18 formed.
- a gas pump 19 in one Gas passage 21 arranged, by means of which the ozone in the functional mode Chamber 16 is pumped into the feed line 9 or into the exhaust system 1.
- the oxygen ion conductor 14 can be an ZrO2 or act on another oxygen ion conductor with pump voltage.
- FIG. 2 to 4 each show a special embodiment for a Ozone generator 7, the ozone generator 7 according to FIG. 2 by an infrared lamp 7a, 3 by a microwave generator 7b and FIG. 4 by a electrical spark discharge path 7c is formed.
- the exhaust gas flows from left to right in FIG. 1 through the exhaust pipe 2.
- the ozone reaches into the exhaust gas stream into which it is distributed and mixed, e.g. automatically due to the Flow and the flow path b between the point 8 and the catalyst 5.
- the invention is based on the finding that the addition of ozone to the exhaust gas Promotes oxidation of pollutants.
- the oxidation performance of the ozone is directed according to the ratio in which it is added to the exhaust gas. With the exhaust gas The ozone thus preferably reaches the gas mixer 6 and / or Catalyst 5, whereby the oxidation can take place.
- the generation or supply of ozone can be carried out continuously or be carried out discontinuously.
- the latter can be done by a not shown Control device, in particular by the existing electronic control device, by switching on and off, e.g. by switching on and off each of the circuit of the UV lamp 7a, the ion conductor 14, the Microwave generator 7b and / or the spark discharge path 7c:
Landscapes
- 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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Description
- 1
- Abgasanlage
- 2
- Abgasleitung
- 2a
- Rohrleitungsabschnitt
- 2b
- Rohrleitungsabschnitt
- 3
- Brennkraftmaschine
- 4
- Strömungsrichtung
- 5
- Katalysator
- 5a
- Gehäuse
- 6
- Gasmischer
- 6a
- Behandlungseinheit
- 7
- Ozongenerator
- 7a
- UV-Strahler
- 7b
- Mikrowellenstrahler
- 7c
- Funkenstrecke
- 8
- Abgabestelle
- 9
- Zuführungsleitung
- 10 11
- Zuluft, zugeführtes Abgas
- 12
- Anzeigevorrichtung
- 14
- Sauerstoff-lonenleiter
- 14a
- Außenseite
- 14b
- Innenseite
- 15
- Rohrleitung
- 16
- Kammer
- 17a
- Leitung
- 17b
- Leitung
- 18
- Generatorgehäuse
- 19
- Gaspumpe
Claims (5)
- Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine (3) mit einer in einer Abgasleitung (2) angeordneten Abgasbehandlungseinheit (5) und einer Ozonquelle (7), die Ozon an das Abgas in der Abgasleitung (2) an einer Abgabestelle (8) vor der Abgasbehandlungseinheit abgibt, wobei die Ozonquelle (7) durch einen Ozongenerator (7, 7a, 7b, 7c) gebildet wird, dadurch gekennzeichnet, daß der Ozongenerator (7, 7a, 7b, 7c) einen Sauerstoff-Ionenleiter (14) aufweist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ozongenerator (7) in der Abgasleitung (2) angeordnet ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem Ozongenerator (7, 7a, 7b, 7c) Frischluft oder Abgas zugeführt wird.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Ozongenerator durch eine UV-Lampe (7a), einen Mikrowellengenerator (7b) oder eine elektrische Funkenentladungsstrecke (7c) gebildet wird.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Ozongenerator eine Pumpe (19) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19900967 | 1999-01-13 | ||
DE19900967A DE19900967A1 (de) | 1999-01-13 | 1999-01-13 | Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1020620A1 EP1020620A1 (de) | 2000-07-19 |
EP1020620B1 true EP1020620B1 (de) | 2004-03-10 |
Family
ID=7894098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99124898A Expired - Lifetime EP1020620B1 (de) | 1999-01-13 | 1999-12-17 | Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1020620B1 (de) |
AT (1) | ATE261544T1 (de) |
DE (2) | DE19900967A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017213196A1 (de) | 2017-07-31 | 2019-01-31 | Siemens Aktiengesellschaft | Gasanalysator zur Messung von Stickoxiden und Schwefeldioxid in Abgasen |
WO2019029949A1 (de) | 2017-08-10 | 2019-02-14 | Siemens Aktiengesellschaft | Gasanalysator zur messung von stickoxiden und mindestens einer weiteren komponente eines abgases |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19904068A1 (de) * | 1999-02-02 | 2000-08-03 | Volkswagen Ag | Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine |
DE10001431A1 (de) * | 2000-01-15 | 2001-07-19 | Volkswagen Ag | Abgasanlage und Verfahren zur Reinigung eines Abgases einer Verbrennungskraftmaschne, insbesondere einer Dieselkraftmaschine |
DE10130634A1 (de) * | 2001-06-26 | 2003-01-02 | Man Nutzfahrzeuge Ag | Verfahren und Vorrichtung zum Betreiben eines Abgasfilters für einen Verbrennungsmotor |
DE10142800A1 (de) * | 2001-08-31 | 2003-03-20 | Bosch Gmbh Robert | Vorrichtung und Verfahren zur Abgasnachbehandlung |
DE10201928A1 (de) * | 2002-01-19 | 2003-07-31 | Eberspaecher J Gmbh & Co | Abgasanlage einer Verbrennungsmaschine |
DE10204073A1 (de) * | 2002-02-01 | 2003-08-14 | Eberspaecher J Gmbh & Co | Abgasanlage und Verfahren zur Regeneration eines Partikelfilters |
DE10231620A1 (de) * | 2002-07-12 | 2004-01-29 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Abgasreinigung einer Brennkraftmaschine |
FR2844000B1 (fr) | 2002-08-30 | 2006-03-24 | Renault Sa | Systeme de traitement de gaz d'echappement comportant un systeme d'ionisation des gaz avec injection d'air ionise |
EP1706606A1 (de) * | 2003-10-08 | 2006-10-04 | ECS Holdings, Inc. | Einen sauerstoffangereicherten dieselteilchenfilter enthaltendes system und verfahren dafür |
FR2862340B1 (fr) * | 2003-11-18 | 2006-01-20 | Peugeot Citroen Automobiles Sa | Procede de traitement des hydrocarbures imbrules issus d'un moteur a allumage commande fonctionnant au gaz naturel et dispositif d'application de ce procede |
JP4239992B2 (ja) | 2005-03-16 | 2009-03-18 | トヨタ自動車株式会社 | ガス浄化装置 |
DE102007062249A1 (de) * | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Katalysator zur Behandlung von Verbrennungsabgasen |
CN102278243A (zh) * | 2011-05-05 | 2011-12-14 | 上海工程技术大学 | 内燃机进气系统节能装置 |
DE102017130314A1 (de) | 2016-12-19 | 2018-06-21 | Johnson Matthey Public Limited Company | Erhöhte NOx-Umwandlung durch Einführung von Ozon |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0341832A2 (de) * | 1988-05-13 | 1989-11-15 | Johnson Matthey Inc. | Behandlung von Dieselabgas |
EP1060004A1 (de) * | 1998-03-06 | 2000-12-20 | Johnson Matthey Public Limited Company | Verbesserungen der schadstoffregelung |
EP1117474A1 (de) * | 1998-10-09 | 2001-07-25 | Johnson Matthey Public Limited Company | Anordnung und verfahren zur reinigung von abgasen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3835645A (en) * | 1973-02-08 | 1974-09-17 | J Zoleta | Method and system for reducing pollutants from engine exhaust |
JPS55104514A (en) * | 1979-02-05 | 1980-08-11 | Nissan Motor Co Ltd | Exhaust-gas purifying system for internal combustion engine |
JPS5730524A (en) * | 1980-07-30 | 1982-02-18 | Tsuchiya Mfg Co Ltd | Treatment of fine particles in exhaust gas |
DE3440689A1 (de) * | 1984-11-07 | 1986-05-15 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum vermindern von schadstoffen in auspuffgasen von kraftfahrzeugen |
JPH0650128A (ja) * | 1991-02-07 | 1994-02-22 | Tetsuo Wada | 排気ガスの中和器 |
JPH04276167A (ja) * | 1991-03-04 | 1992-10-01 | Masayuki Yokota | オゾン添加による炭素系燃料の完全燃焼 |
US5806305A (en) * | 1994-05-18 | 1998-09-15 | Lockheed Martin Corporation | Method and apparatus for reducing pollutants |
JPH09317444A (ja) * | 1996-05-24 | 1997-12-09 | Sankei Sangyo:Kk | 排気浄化システムの排気生成物回収装置 |
-
1999
- 1999-01-13 DE DE19900967A patent/DE19900967A1/de not_active Withdrawn
- 1999-12-17 DE DE59908807T patent/DE59908807D1/de not_active Expired - Fee Related
- 1999-12-17 EP EP99124898A patent/EP1020620B1/de not_active Expired - Lifetime
- 1999-12-17 AT AT99124898T patent/ATE261544T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0341832A2 (de) * | 1988-05-13 | 1989-11-15 | Johnson Matthey Inc. | Behandlung von Dieselabgas |
EP1060004A1 (de) * | 1998-03-06 | 2000-12-20 | Johnson Matthey Public Limited Company | Verbesserungen der schadstoffregelung |
EP1117474A1 (de) * | 1998-10-09 | 2001-07-25 | Johnson Matthey Public Limited Company | Anordnung und verfahren zur reinigung von abgasen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017213196A1 (de) | 2017-07-31 | 2019-01-31 | Siemens Aktiengesellschaft | Gasanalysator zur Messung von Stickoxiden und Schwefeldioxid in Abgasen |
WO2019025186A1 (de) | 2017-07-31 | 2019-02-07 | Siemens Aktiengesellschaft | Gasanalysator zur messung von stickoxiden und schwefeldioxid in abgasen |
WO2019029949A1 (de) | 2017-08-10 | 2019-02-14 | Siemens Aktiengesellschaft | Gasanalysator zur messung von stickoxiden und mindestens einer weiteren komponente eines abgases |
DE102017213980A1 (de) | 2017-08-10 | 2019-02-14 | Siemens Aktiengesellschaft | Gasanalysator zur Messung von Stickoxiden und mindestens einer weiteren Komponente eines Abgases |
Also Published As
Publication number | Publication date |
---|---|
EP1020620A1 (de) | 2000-07-19 |
DE19900967A1 (de) | 2000-07-20 |
ATE261544T1 (de) | 2004-03-15 |
DE59908807D1 (de) | 2004-04-15 |
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