EP3701131A1 - Brennkraftmaschine mit einer abgasanlage - Google Patents
Brennkraftmaschine mit einer abgasanlageInfo
- Publication number
- EP3701131A1 EP3701131A1 EP18773944.6A EP18773944A EP3701131A1 EP 3701131 A1 EP3701131 A1 EP 3701131A1 EP 18773944 A EP18773944 A EP 18773944A EP 3701131 A1 EP3701131 A1 EP 3701131A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- exhaust
- internal combustion
- combustion engine
- bypass
- 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- Withdrawn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
- F01N3/18—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
- F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
-
- 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
- F01N13/001—Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine
-
- 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
- F01N3/101—Three-way catalysts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- 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
- F01N2240/36—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 exhaust flap
-
- 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 apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/02—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the distance of the apparatus to the engine, or the distance between two exhaust treating apparatuses
-
- 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 apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/06—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the 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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
- F01N2410/02—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of high temperature, e.g. overheating of catalytic reactor
-
- 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.
- German Offenlegungsschrift DE 2851675 A1 discloses an afterburning device for the exhaust gases of internal combustion engines.
- the invention relates to a device for post-combustion of exhaust gases in internal combustion engines with a catalyst for the oxidation of CO and HC, in which a portion of the exhaust gas is passed in the upper load range, bypassing a catalyst through an exhaust passage, which is characterized in that the catalyst and the exhaust passage downstream of a second catalyst.
- the fuel-air mixture is enriched (lambda ⁇ 1) at high engine speeds and high power in order to protect the exhaust gas-carrying components from thermal overload. This is especially true for supercharged engines where the
- the mixture enrichment leads to high CO concentrations in the exhaust gas and the CO is not oxidized in the catalyst due to the lack of oxygen.
- the catalyst no longer works as a 3-way catalyst because no Stoichiometric mixture is adjusted. This endangers the fulfillment of future approval requirements for motor vehicles.
- Object of the present invention is to show an alternative exhaust system to solve the CO problem.
- Part of the exhaust flow may be through a in the exhaust manifold
- the wastegate regulates the bypass exhaust gas flow and thus advantageously replaces the wastegate in the turbocharger.
- the bypass exhaust gas stream lowers the exhaust gas temperature in the exhaust gas turbine and in the exhaust gas cleaning system close to the engine.
- the exhaust gas in the bypass exhaust gas stream is purified by the engine, which is remote from the engine, the second exhaust gas purification system.
- the bypass is only in the thermally critical high load range of
- Emission control system the catalyst close to the engine, cleaned.
- the exhaust gas bypass, the entire exhaust system is thermally relieved and the mixture enrichment can be omitted in an advantageous manner.
- the exhaust gas is cleaned in the entire operating range of the internal combustion engine and it can also be met sharper exhaust emission laws.
- the wastegate, the closure element in the exhaust manifold or cylinder head it may, for. B. with a water-cooled Valve seat executed and the acoustic disadvantages of wastegate in the turbocharger are avoided.
- Figure 1 shows schematically an internal combustion engine with a
- Figure 1 shows schematically an internal combustion engine 1 with an exhaust system 2.
- the exhaust system 2 is connected via a not quantified exhaust manifold with the engine exhaust leading.
- Embodiment flows the exhaust gas at low load or during warm-up of the internal combustion engine first via a turbine 7 of a
- Tailpipes 9 Outflowing exhaust gas is represented symbolically by two arrows.
- the first exhaust pipe 10 can often be omitted, since the first emission control system 3 often directly to a turbine housing of the
- Exhaust gas turbocharger is flanged.
- the turbine wheel 7 is rotatably mounted in a housing of the exhaust gas turbocharger and drives a compressor, not shown, of the exhaust gas turbocharger. Between the internal combustion engine 1 and the turbine housing, a bypass 5 branches off from the exhaust system 2, which is behind the first
- a closure element 6 is provided in the bypass 5.
- the closure element 6 operates as a normal wastegate, which also takes over the wastegate.
- the closure element 6 is opened and a portion of the exhaust gas mass flow is passed to the first emission control system 3, so that it is thermally protected.
- the second exhaust pipe 1 1 can also be designed profiled, for a better exhaust gas cooling.
- the closure element 6 is arranged according to the invention in a first embodiment in the exhaust manifold.
- the closure element 6 advantageously replaces an acoustically critical bypass flap of the exhaust gas turbocharger.
- the muffler 8 and the second emission control system 4 are arranged in a single housing, in a further embodiment, different housing for the muffler 8, the second emission control system 4 can be provided.
- exhaust gas bypass 5 thus the entire exhaust system is thermally relieved and a mixture enrichment can be omitted.
- the exhaust gas is cleaned in the entire operating range of the internal combustion engine 1 and it can be met even tougher exhaust emission laws.
- the wastegate, the closure element 6, in the exhaust manifold or in the cylinder head a simple structural unit is shown by the replacement of the bypass valve in the exhaust gas turbocharger are acoustic
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)
- Supercharger (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017218837.5A DE102017218837A1 (de) | 2017-10-23 | 2017-10-23 | Brennkraftmaschine mit einer Abgasanlage |
PCT/EP2018/073954 WO2019081111A1 (de) | 2017-10-23 | 2018-09-06 | Brennkraftmaschine mit einer abgasanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3701131A1 true EP3701131A1 (de) | 2020-09-02 |
Family
ID=63683132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18773944.6A Withdrawn EP3701131A1 (de) | 2017-10-23 | 2018-09-06 | Brennkraftmaschine mit einer abgasanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3701131A1 (de) |
DE (1) | DE102017218837A1 (de) |
WO (1) | WO2019081111A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018205768B3 (de) | 2018-04-17 | 2019-01-10 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine mit einer Abgasanlage |
DE102018205769A1 (de) | 2018-04-17 | 2019-10-17 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine mit einer Abgasanlage |
DE102018205770A1 (de) | 2018-04-17 | 2019-10-17 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine mit einer Abgasanlage |
DE102018205771A1 (de) | 2018-04-17 | 2019-10-17 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine mit einer Abgasanlage |
JP2023091576A (ja) * | 2021-12-20 | 2023-06-30 | トヨタ自動車株式会社 | エンジン制御装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2851675A1 (de) | 1978-11-29 | 1980-06-12 | August Paul Dr H C | Nachverbrennungsvorrichtung fuer die abgase von brennkraftmaschinen |
JPS6276225U (de) * | 1985-10-30 | 1987-05-15 | ||
DE3930380A1 (de) * | 1989-09-12 | 1991-03-21 | Porsche Ag | Abgasanlage eines mehrzylinder-verbrennungsmotors |
DE4444098A1 (de) * | 1994-12-10 | 1996-06-13 | Opel Adam Ag | Brennkraftmaschine mit zwei Zylinderbänken |
US6345496B1 (en) * | 1995-11-09 | 2002-02-12 | Toyota Jidosha Kabushiki Kaisha | Method and device for purifying exhaust gas of an engine |
JP2000337133A (ja) * | 1999-05-21 | 2000-12-05 | Honda Motor Co Ltd | 内燃機関の排気浄化装置 |
JP3945335B2 (ja) * | 2002-07-31 | 2007-07-18 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US7527126B2 (en) * | 2004-07-07 | 2009-05-05 | Sango Co., Ltd. | Exhaust apparatus of an internal combustion engine |
JP4594128B2 (ja) * | 2005-02-17 | 2010-12-08 | アイシン高丘株式会社 | 排気マニホールド |
JP4492417B2 (ja) * | 2005-04-08 | 2010-06-30 | 日産自動車株式会社 | 内燃機関の排気装置 |
JP4591270B2 (ja) * | 2005-08-11 | 2010-12-01 | 日産自動車株式会社 | 内燃機関の排気装置 |
-
2017
- 2017-10-23 DE DE102017218837.5A patent/DE102017218837A1/de active Pending
-
2018
- 2018-09-06 WO PCT/EP2018/073954 patent/WO2019081111A1/de unknown
- 2018-09-06 EP EP18773944.6A patent/EP3701131A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102017218837A1 (de) | 2019-04-25 |
WO2019081111A1 (de) | 2019-05-02 |
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