EP3701132A1 - Brennkraftmaschine mit einer abgasanlage - Google Patents
Brennkraftmaschine mit einer abgasanlageInfo
- Publication number
- EP3701132A1 EP3701132A1 EP18773943.8A EP18773943A EP3701132A1 EP 3701132 A1 EP3701132 A1 EP 3701132A1 EP 18773943 A EP18773943 A EP 18773943A EP 3701132 A1 EP3701132 A1 EP 3701132A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- exhaust gas
- exhaust system
- 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.)
- Withdrawn
Links
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
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
- F01N3/326—Engine-driven air pumps
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
-
- 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
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features 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
- F01N3/02—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
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—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
- 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
- F01N3/101—Three-way catalysts
-
- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/02—Exhaust filters
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/04—Catalytic converters
-
- 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
- F01N2240/02—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 a heat exchanger
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
- F01N2260/022—Exhaust treating devices having provisions not otherwise provided for for cooling the device using 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
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/06—Arrangement of the exhaust apparatus relative to the turbine of a turbocharger
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
-
- 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
- F01N2570/10—Carbon or carbon oxides
-
- 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 invention relates to an internal combustion engine having an exhaust system with the features of the preamble of patent claim 1.
- the technical environment is, for example, the German
- an exhaust system for internal combustion engines with particle filter is known.
- the exhaust system for an internal combustion engine has an exhaust line, which is connectable to an outlet side of the internal combustion engine, wherein in the exhaust system in the downstream direction
- At least one catalyst is arranged and this is followed by a particle filter.
- a secondary air inlet opening for introducing secondary air via at least one controllable valve into the exhaust gas line is provided in the exhaust gas line upstream of the particle filter and the secondary air is compressed air.
- the secondary air is a partial flow of
- Exhaust system wherein the secondary air inlet opening is arranged in the flow direction of the exhaust gas to the particle filter in the exhaust system.
- Object of the present invention is to eliminate the CO emission as completely as possible and to oxidize in CO2.
- the internal combustion engine can continue to be operated with a mixture enrichment and the CO are oxidized via the oxidation catalyst. Since the oxidation of the
- the second emission control system should be as far away from the Internal combustion engine are installed, z. B. integrated in the
- the exhaust gas temperature can be lowered as far as possible when entering the second emission control device.
- the secondary air should be taken after the turbocharger compressor and before the intercooler.
- the secondary air mass flow can be adjusted by the wastegate of the exhaust gas turbocharger and the throttle valve fresh air side.
- the secondary air can also be provided by an electric compressor (e-booster).
- the second emission control system can also be designed as a particle filter.
- the secondary air system may be further used to regenerate a particulate filter.
- Exhaust gas turbocharger and the throttle valve may be arranged in the secondary air line and a valve.
- the first emission control system is preferably a three-way catalytic converter or a NOx storage catalytic converter.
- the second emission control system may also be an SCR catalytic converter (Selective Catalytic Reduction).
- the internal combustion engine can continue to be operated with a mixture enrichment in thermally critical map areas, without causing a high CO emission. With the mixture enrichment, the internal combustion engine can continue
- the filter can be regenerated largely independent of the operating condition of the internal combustion engine, since the required
- Oxygen excess can be effected by the secondary air system.
- the invention is explained in more detail below with reference to an embodiment in a single figure.
- Figure 1 shows schematically an internal combustion engine with an exhaust system.
- FIG 1 shows schematically an internal combustion engine 1 with an exhaust system 2.
- the exhaust system 2 is used for discharging exhaust gas
- the exhaust gas flows first through a turbine 3 of an exhaust gas turbocharger and further through an exhaust pipe and through a first emission control system 4.
- the exhaust gas flows through an exhaust pipe and through a silencer 6 and further through a second emission control system 7.
- the exhaust gas leaves the exhaust gas through two tailpipes 8, the exhaust system 2 and flows into the open.
- the two tailpipes 8 apply to this embodiment, the function is independent of the number of tailpipes 8.
- a flow direction of the exhaust gas is shown schematically by two arrows.
- a secondary air line 5 is provided with a not
- a fresh air mass flow through the secondary air line 5 can with a non-illustrated
- Throttle or a bypass, not shown, of the exhaust gas turbocharger or by a likewise not shown valve in the secondary air line 5 are regulated.
- the first emission control system 4 is a three-way catalyst, in a second embodiment, it may be a NOx storage catalyst.
- the second emission control system 7 is preferably a three-way
- Catalyst may also be an SCR catalyst (Selective Catalytic Reduction) or a particulate filter, wherein the particulate filter may also be coated and may additionally work as a catalyst.
- SCR catalyst Selective Catalytic Reduction
- particulate filter may also be coated and may additionally work as a catalyst.
- At least a portion of the exhaust pipes of the exhaust system 2 is profiled, so that the exhaust gas flowing through the exhaust system 2 is cooled as far as possible until it hits the second emission control system 7.
- the exhaust pipe between the turbine outlet and the first exhaust gas purification system 4 is designed as an inlet funnel for the first exhaust gas purification system 4, so that this
- Exhaust pipe section is omitted.
- the exhaust pipe should be profiled between the first exhaust gas purification system 4 and the muffler 6 for better cooling.
- the muffler 6 and the second emission control system 7 are arranged in a common housing in the flow direction of the exhaust gas spaced from each other.
- a separate housing may be provided for the muffler 6 and the second emission control system 7, respectively.
- the internal combustion engine can continue to be operated with a mixture enrichment in thermally critical map areas, without causing high CO emissions. With the mixture enrichment, the internal combustion engine can continue
- the filter can be regenerated largely independent of the operating condition of the internal combustion engine, since the required
- Oxygen excess can be adjusted by the secondary air system.
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)
- Materials Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017218838.3A DE102017218838A1 (de) | 2017-10-23 | 2017-10-23 | Brennkraftmaschine mit einer Abgasanlage |
| PCT/EP2018/073950 WO2019081109A1 (de) | 2017-10-23 | 2018-09-06 | Brennkraftmaschine mit einer abgasanlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3701132A1 true EP3701132A1 (de) | 2020-09-02 |
Family
ID=63683131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18773943.8A Withdrawn EP3701132A1 (de) | 2017-10-23 | 2018-09-06 | Brennkraftmaschine mit einer abgasanlage |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3701132A1 (de) |
| DE (1) | DE102017218838A1 (de) |
| WO (1) | WO2019081109A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019103001A1 (de) | 2019-02-07 | 2020-08-13 | Bayerische Motoren Werke Aktiengesellschaft | Partikelfilterbaugruppe für Kraftfahrzeug, Kraftfahrzeug und Verfahren zum Regenerieren eines Partikelfilters |
| DE102020107130A1 (de) | 2020-03-16 | 2021-09-16 | Bayerische Motoren Werke Aktiengesellschaft | Abgasanlage mit mehreren Abgasreinigungsvorrichtungen und Sekundärluft |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048092A (en) * | 1973-03-05 | 1977-09-13 | Colonial Metals, Inc. | Catalytic mixture and method of use therefor |
| JPS5517626A (en) * | 1978-07-20 | 1980-02-07 | Nippon Clean Engine Res | Feeding method of secondary air to catalytic muffler of internal combustion engine |
| US5783160A (en) * | 1995-01-27 | 1998-07-21 | Toyota Jidosha Kabushiki Kaisha | Method for purifying combustion exhaust gas |
| ES2144779T3 (es) * | 1995-11-09 | 2000-06-16 | Toyota Motor Co Ltd | Procedimiento y dispositivo que permite purificar los gases de escape de un motor. |
| US6122909A (en) * | 1998-09-29 | 2000-09-26 | Lynntech, Inc. | Catalytic reduction of emissions from internal combustion engines |
| DE10258850A1 (de) * | 2002-12-17 | 2004-07-08 | Volkswagen Ag | Vorrichtung zur Nachbehandlung von Abgasen einer Brennkraftmaschine |
| US8327628B2 (en) * | 2009-09-29 | 2012-12-11 | Ford Global Technologies, Llc | Gasoline particulate filter regeneration and diagnostics |
| DE102010044102A1 (de) | 2010-11-18 | 2012-05-24 | Ford Global Technologies, Llc | Abgasanlage für Brennkraftmaschinen mit Partikelfilter |
| US9347358B1 (en) * | 2014-11-26 | 2016-05-24 | General Electric Company | Silencer for mid-bed air injection mixing |
| DE102016204691A1 (de) * | 2016-03-22 | 2017-09-28 | Volkswagen Aktiengesellschaft | Vorrichtung und Verfahren zur Regeneration eines Partikelfilters |
| DE102017203267A1 (de) | 2017-03-01 | 2018-09-06 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine mit einer Abgasanlage |
-
2017
- 2017-10-23 DE DE102017218838.3A patent/DE102017218838A1/de not_active Withdrawn
-
2018
- 2018-09-06 EP EP18773943.8A patent/EP3701132A1/de not_active Withdrawn
- 2018-09-06 WO PCT/EP2018/073950 patent/WO2019081109A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019081109A1 (de) | 2019-05-02 |
| DE102017218838A1 (de) | 2019-04-25 |
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