KR101891857B1 - Arrangement for treating exhaust gases of an internal combustion engine and a corresponding internal combustion engine - Google Patents
Arrangement for treating exhaust gases of an internal combustion engine and a corresponding internal combustion engine Download PDFInfo
- Publication number
- KR101891857B1 KR101891857B1 KR1020147008352A KR20147008352A KR101891857B1 KR 101891857 B1 KR101891857 B1 KR 101891857B1 KR 1020147008352 A KR1020147008352 A KR 1020147008352A KR 20147008352 A KR20147008352 A KR 20147008352A KR 101891857 B1 KR101891857 B1 KR 101891857B1
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- KR
- South Korea
- Prior art keywords
- exhaust gas
- engine
- exhaust
- space
- gas treatment
- Prior art date
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Classifications
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- 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
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
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- 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
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- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/16—Plurality of inlet tubes, e.g. discharging into different chambers
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- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
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- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/10—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for stationary applications
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to a gas treatment system comprising a gas treatment device 16 in which a space 22 is formed and at least two exhaust gas inlets 20 opening into a space 22 inside the gas treatment device, And an exhaust gas processing unit (26) disposed within the space (22). The exhaust gas processing unit (26) An exhaust gas treatment unit 26 is arranged to border the two partial spaces 22.1 and 22.2 into the space 22 and the exhaust gas inlet of one of the at least two exhaust gas inlets 20 The exhaust gas inlet of the other one of the at least two exhaust gas inlets is opened into the second subspace 22.2 and the at least one exhaust gas outlet is in flow communication with all of the subspace.
Description
The present invention relates to an internal combustion piston engine comprising a gas processing device in which a space is formed, at least two exhaust gas openings into the space and at least one exhaust gas outlet, and an exhaust gas processing unit disposed in the space To an arrangement for treating exhaust gases.
The present invention also relates to an internal combustion piston engine having an arrangement for treating exhaust gases.
Exhaust emission requirements of internal combustion piston engines are becoming increasingly stringent. In order to address these requirements, there are a variety of available techniques by which gas emissions can be controlled when the engine is operating. On the other hand, it is undesirable for the overall performance of the engine to be deteriorated due to measures to reduce emissions.
In particular, catalysts are commonly used to speed up the reactions of certain materials contained by the exhaust gases of internal combustion piston engines. Such materials include, for example, nitrogen oxides, hydrocarbons such as methane, carbon oxides, and the like.
DE 10 2008061222 A1 shows an internal combustion piston engine with banks of two or more cylinders, each bank comprising one exhaust gas line and a supercharging air line. According to this document, there is a general emission control device, in particular a catalyst, arranged in connection with the engine. The emission control device is integrated into the configuration of the engine to reduce the space requirements of the system.
US 3247666 discloses a manifold afterburner apparatus for controlling exhaust emissions in an internal combustion engine having an internal space therein and at least two exhaust gas openings opening into the internal space of the gas processing apparatus and at least one exhaust gas outlet do. There is also an exhaust gas processing unit disposed within the space, the exhaust gas processing unit being arranged to border two sub-spaces into the space, and having flow passages allowing gas to flow through the processing unit.
There are several issues to consider when using a catalyst emission abatement system coupled with internal combustion piston engines. First, the position of the system in the exhaust gas stream somewhat defines the available temperature range over which the catalyst should be operated. Typically, such a catalyst should be located close to the turbine portion (s) of the engine, i.e., very close to the engine. Secondly, although the formation of soot may also occur in gas-operated engines, the risk of contamination and clogging is always an issue to be taken into account, especially in connection with engines operating with heavy oil, for example. Third, the set spatial requirements of the catalyst emission reduction system are typically significant. The overall goal is to use as little space as possible.
It is an object of the present invention to provide an arrangement and an internal combustion piston engine for the treatment of exhaust gases of an internal combustion piston engine which solves at least one of the above-mentioned problems of the prior art.
SUMMARY OF THE INVENTION Objects of the present invention are to provide an internal combustion engine comprising a gas processing apparatus having a space therein, at least two exhaust gas openings into the space and at least one exhaust gas outlet, and an exhaust gas processing unit disposed in the space, Is substantially satisfied by the arrangement for treating the exhaust gases of the engine. The exhaust gas treatment unit delimits two subspaces into the space, the gas treatment unit having flow passages that allow the gas to flow through the gas treatment unit. Wherein the flow passages comprise a catalytic portion, the exhaust gas inlet of one of the at least two exhaust gas openings is opened into a first subspace, and the exhaust gas inlet of the other of the at least two exhaust gas inlets is connected to a second subspace And at least one exhaust gas outlet is in fluid communication with all of the partial spaces.
This provides an arrangement for performing effective gas treatment without deteriorating operating reliability. It also uses the pulsating exhaust flow from the cylinders of the engine. This also reduces engine noise and vibration related problems.
According to an embodiment of the present invention, at least two exhaust gas inlets are oriented or otherwise arranged such that the speed of the exhaust gas partially has a direction towards the exhaust gas processing unit.
This provides an operating effect that allows the gas to at least partially strike the exhaust gas treatment unit and flow through it. Thus, the treatment of the gas in the processing unit is based on the passage of the gas by the pulsating gas flow in space. Thus, the exhaust gas processing unit of parts of the space may be clogged, which does not substantially affect the operation of the engine. Due to the constitution and the pulsating exhaust gas flow, the arrangement is more resistant to soot and clogging.
Arranging the gas treatment unit as described above minimizes the need for external piping and bypass valves.
According to another embodiment of the present invention, the gas processing apparatus is a elongate manifold having a longitudinal axis, and the exhaust gas processing unit is a wall-like structure arranged to extend in the manifold in the direction of the longitudinal axis.
According to another embodiment of the present invention, the wall-like structure is a waveform in the direction of the longitudinal axis. The wall-like structure is also a zigzag formed in the direction of the longitudinal axis.
The exhaust gas treatment unit delimits at least two partial spaces at a position where at least two exhaust gas inlets open into one of the two partial spaces.
According to an embodiment of the present invention, the exhaust gas treatment unit includes gas flow passages extending between two partial spaces, the passages at least partially having a catalyst on the surface of the exhaust gas treatment unit. This surface is also referred to as the catalyst surface in this context. Preferably, the catalyst is a partial oxidation catalyst which promotes the oxidation reaction of any residual hydrocarbons in the exhaust gas.
According to an embodiment of the present invention, the catalyst surface is disposed in the middle portion of the passages.
Preferably, the gas treating apparatus is an exhaust gas manifold of an engine.
According to one embodiment of the present invention, the exhaust gas manifold is formed of several gas processing devices arranged continuously with respect to each other.
The wall-like structure of the exhaust gas processing unit extends between the two inner surfaces of the exhaust gas processing device in the cross direction of the processing device.
An internal combustion piston engine according to the present invention comprises a gas processing device having a space therein, at least two exhaust gas openings into the space, and at least one exhaust gas outlet, and an exhaust gas processing unit disposed in the space, And an arrangement for treating the exhaust gases. An exhaust gas treatment unit is arranged to border two sub-spaces into the space, the gas treatment unit having flow passages allowing gas to flow through the treatment unit, It is a feature of the engine. Further, the exhaust gas inlet of one of the at least two exhaust gas inlets opens into the first subspace and the exhaust gas inlet of the other of the at least two exhaust gas inlets opens into the second subspace, The gas outlet is in flow communication with all of the partial spaces.
According to an embodiment of the present invention, the engine is a V-engine and an arrangement for treating the exhaust gases is disposed between the banks of the engine.
According to another embodiment of the present invention, the engine is an in-line engine.
In the following, the invention will be described with reference to the accompanying schematic illustrative drawings.
1 shows an internal combustion piston engine according to an embodiment of the present invention,
Figure 2 shows a cross section (II-II) of Figure 1,
Figure 3 shows a partial view of an internal combustion piston engine according to another embodiment of the present invention,
Figure 4 shows a partial view of an internal combustion piston engine according to another embodiment of the present invention,
Figure 5 shows a partial view of an internal combustion piston engine according to another embodiment of the present invention,
Figure 6 shows a partial view of an internal combustion piston engine according to another embodiment of the present invention,
7 shows an internal combustion piston engine according to another embodiment of the present invention,
8 shows an internal combustion piston engine according to another embodiment of the present invention,
9 shows an internal combustion piston engine according to another embodiment of the present invention.
1 schematically illustrates an internal
The
The gas treatment apparatus is described in connection with the V-engine in FIG. 1 and FIG. The gas treatment device is disposed between the banks of the engine, and the
The exhaust
When the engine is operating, if the processing unit is arranged as shown in Figs. 1 and 2, the exhaust gas hits the processing unit from both sides. The exhaust
According to an embodiment of the present invention, the exhaust
Figure 2 shows by arrows how the pulsing exhaust gas flow passes through the exhaust gas processing units and again strikes the starting side. Because of the forward and backward flow of the gas through the catalyst units from both directions, the passages 26 'will therefore remain free from any substantial soot deposits while keeping the risk of clogging low. Soot does not necessarily have to pass through the catalyst unit and thus the catalyst unit may have a substantially dense grid of flow channels with a larger specific catalyst area. At the same time, the catalytic unit reacts as a pulse buffer.
The present invention also provides operational precautions against unlikely clogging of the catalyst unit. If the catalyst unit is clogged, the gas will still flow forward in the subspace.
Each
In Fig. 2, one embodiment of the present invention is shown in which a
According to another embodiment of the present invention, a fluid inlet system is utilized to introduce catalytic reactions in the
Fig. 4 shows an embodiment of the present invention in which the
Figs. 5 and 6 show different overall layouts of the exhaust
In Fig. 7, a variant of the embodiment of Fig. 2 is shown, including several
Fig. 8 schematically shows an internal combustion piston engine 10 ', which is an in-line engine. 8, the exhaust
Fig. 9 schematically shows an internal combustion piston engine 10 'which is also an in-line engine. 9, the exhaust
While the present invention has been described herein with reference to what are presently considered to be the most preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is intended to cover various combinations and modifications of the features of several different applications and embodiments. The detailed description set forth with reference to any of the above embodiments may be used in connection with other embodiments when such a combination is technically feasible.
Claims (14)
The exhaust gas treatment unit (26) is arranged to border the first subspace (22.1) and the second subspace (22.2) into the space (22), and the exhaust gas treatment unit And gas flow passages (26 ') that allow flow through the processing unit,
The exhaust gas treatment unit 26 includes gas flow passages 26 'extending between the first subspace 22.1 and the second subspace 22.2,
Wherein said gas flow passages (26 ') comprise a catalytic portion (26.1), the exhaust gas inlet of one of said at least two exhaust gas inlets (20) being open into said first subspace (22.1) Characterized in that the exhaust gas inlet of the other one of the at least two exhaust gas openings is opened into the second partial space (22.2) and the at least one exhaust gas outlet is in fluid communication with all of said partial spaces An arrangement for treating exhaust gases of piston engines (10, 10 ').
Wherein the gas treatment device is a elongate manifold having a longitudinal axis (A), the exhaust gas treatment unit (26) being arranged to extend in the manifold in the direction of the longitudinal axis (A) (10). ≪ RTI ID = 0.0 > 10. < / RTI >
Wherein the wall-like structure is corrugated in the direction of the longitudinal axis. ≪ Desc / Clms Page number 13 >
Wherein the wall-like structure is zigzag formed in the direction of the longitudinal axis. ≪ Desc / Clms Page number 13 >
The exhaust gas processing unit (26) is configured to control the exhaust gas processing unit (26) such that at least two of the at least two exhaust gas inlets open into the partial space of either the first subspace (22.1) and the second subspace Wherein the engine is configured to process the exhaust gases of the internal combustion piston engine (10).
Characterized in that the gas flow passages comprise a catalyst at least partially on the surfaces of the gas flow passages.
Characterized in that the catalyst is a partial oxidation catalyst. ≪ Desc / Clms Page number 13 >
Characterized in that the catalyst is arranged in a catalyst part (26.1) situated in the middle part of the gas flow passages.
Characterized in that the gas treatment device (16) is an exhaust gas manifold.
Characterized in that the exhaust manifold is formed by several gas treatment devices (16) arranged continuously with respect to each other. ≪ Desc / Clms Page number 13 >
Characterized in that the wall-like structure of the exhaust gas processing unit (26) extends in the cross direction of the gas treatment device between two inner surfaces of the gas treatment device Arrangement for treating gases.
Wherein the engine is a V-engine and the arrangement for treating the exhaust gases is disposed between banks of the engine.
Characterized in that the engine is an in-line engine (10 ').
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20115836A FI125443B (en) | 2011-08-29 | 2011-08-29 | Apparatus for treating exhaust gases of a piston-type combustion engine and a piston-type combustion engine |
FI20115836 | 2011-08-29 | ||
PCT/FI2012/050629 WO2013030433A2 (en) | 2011-08-29 | 2012-06-18 | Arrangement for treating exhaust gases of an internal combustion piston engine and an internal combustion piston engine |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20140074318A KR20140074318A (en) | 2014-06-17 |
KR101891857B1 true KR101891857B1 (en) | 2018-08-24 |
Family
ID=44515468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020147008352A KR101891857B1 (en) | 2011-08-29 | 2012-06-18 | Arrangement for treating exhaust gases of an internal combustion engine and a corresponding internal combustion engine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2751399B1 (en) |
KR (1) | KR101891857B1 (en) |
CN (1) | CN103797223B (en) |
FI (1) | FI125443B (en) |
WO (1) | WO2013030433A2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5433073A (en) | 1992-03-10 | 1995-07-18 | Institut Francais Du Petrole | Exhaust line with catalyst for two-stroke internal-combustion engines |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3247666A (en) * | 1964-05-14 | 1966-04-26 | Texaco Inc | Manifold afterburner device for exhaust emissions control in an internal combustion engine system |
US3775979A (en) * | 1971-12-03 | 1973-12-04 | Arvin Ind Inc | Exhaust gas manifold |
US5692373A (en) * | 1995-08-16 | 1997-12-02 | Northrop Grumman Corporation | Exhaust manifold with integral catalytic converter |
SE0001465L (en) * | 2000-04-20 | 2001-10-21 | Electrolux Ab | Silencer |
US6622481B1 (en) * | 2002-03-14 | 2003-09-23 | Brunswick Corporation | Exhaust treatment device for an internal combustion engine |
DE102008061222A1 (en) | 2008-12-09 | 2010-06-17 | Man Diesel Se | Stationary multi-stage loaded internal-combustion engine i.e. highly supercharged large diesel engine, for ship, has exhaust gas cleaning device that is arranged between high pressure turbines and low-pressure turbines |
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2011
- 2011-08-29 FI FI20115836A patent/FI125443B/en active IP Right Grant
-
2012
- 2012-06-18 WO PCT/FI2012/050629 patent/WO2013030433A2/en active Application Filing
- 2012-06-18 CN CN201280041418.6A patent/CN103797223B/en active Active
- 2012-06-18 KR KR1020147008352A patent/KR101891857B1/en active IP Right Grant
- 2012-06-18 EP EP12759785.4A patent/EP2751399B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5433073A (en) | 1992-03-10 | 1995-07-18 | Institut Francais Du Petrole | Exhaust line with catalyst for two-stroke internal-combustion engines |
Also Published As
Publication number | Publication date |
---|---|
FI20115836A0 (en) | 2011-08-29 |
FI20115836A (en) | 2013-03-01 |
CN103797223B (en) | 2016-04-06 |
WO2013030433A2 (en) | 2013-03-07 |
EP2751399B1 (en) | 2015-12-09 |
CN103797223A (en) | 2014-05-14 |
EP2751399A2 (en) | 2014-07-09 |
WO2013030433A3 (en) | 2013-05-10 |
KR20140074318A (en) | 2014-06-17 |
FI125443B (en) | 2015-10-15 |
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