EP3450715A1 - Aftertreatment system - Google Patents
Aftertreatment system Download PDFInfo
- Publication number
- EP3450715A1 EP3450715A1 EP18188116.0A EP18188116A EP3450715A1 EP 3450715 A1 EP3450715 A1 EP 3450715A1 EP 18188116 A EP18188116 A EP 18188116A EP 3450715 A1 EP3450715 A1 EP 3450715A1
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- EP
- European Patent Office
- Prior art keywords
- module
- sub
- conduit
- inlet conduit
- aftertreatment system
- 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.)
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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
- F01N13/009—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
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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
- F01N13/011—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 purifying devices arranged in parallel
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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
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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
- F01N3/02—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
- F01N3/033—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 in combination with other devices
- F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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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
- 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]
- F01N3/2073—Selective catalytic reduction [SCR] with means for generating a reducing substance from the exhaust gases
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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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
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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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/06—Exhaust treating devices having provisions not otherwise provided for for improving exhaust evacuation or circulation, or reducing back-pressure
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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
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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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/02—Two or more expansion chambers in series connected by means of tubes
- F01N2490/06—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet in opposite directions
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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
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
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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
- F01N3/02—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
- F01N3/10—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]
Definitions
- the present disclosure relates to an aftertreatment system. More particularly, the present disclosure relates to an aftertreatment system for treating a high-volume exhaust flow.
- High-volume exhaust flow may be treated within an aftertreatment system to comply with emissions control standards.
- the high volume of exhaust gases flowing through various components of an aftertreatment system can result in excessive backpressure within the aftertreatment system due to a limited flow capacity of the exhaust flow through the aftertreatment system.
- the flow capacity of the aftertreatment system may be increased by increasing the diameter or length (or other dimensions) of pipes and other components of the aftertreatment systems, including, but not limited to, a catalyst, a mixing element, a filter, and a housing. This may lead to an increase in the overall size of the aftertreatment system.
- the increase in size of the aftertreatment system and the components thereof may, in turn, result in increased costs such as research and development cost, manufacturing cost, new tooling, among other costs.
- German Patent Number 4,114,745 describes an exhaust system for a four-stroke combustion engine.
- the engine operates at a pulsating working frequency driven by a number of cylinders each of which has an outlet to a manifold for the pulsating emission of exhaust gases.
- Two pulsating exhaust gas flows are passed through a catalyst matrix phase shifted against each other from one third to two thirds of the period of the working frequency.
- Each pulsating exhaust flow is supplied via a manifold merged from groups of two cylinders.
- the resulting common exhaust manifolds conjoin the catalytic converter matrix from opposite ends.
- the treated exhaust gases leave the catalytic matrix by a common exhaust pipe.
- an aftertreatment system for treating a high-volume exhaust flow includes a first module having a first mixing element.
- the aftertreatment system includes a second module having a second mixing element.
- the second module has a configuration similar to a configuration of the first module.
- the aftertreatment system includes a main inlet conduit adapted to receive the exhaust flow.
- the aftertreatment system includes a first inlet conduit fluidly coupled to the main inlet conduit and the first module.
- the aftertreatment system includes a second inlet conduit fluidly coupled to the main inlet conduit and the second module.
- the aftertreatment system also includes a first outlet conduit fluidly coupled to the first module.
- the aftertreatment system further includes a second outlet conduit fluidly coupled to the second module.
- Each of the first inlet conduit and the second inlet conduit is adapted to split the exhaust flow downstream of the main inlet conduit into a first stream and a second stream flowing therethrough respectively.
- the splitting of the exhaust flow is adapted to limit a backpressure within the aftertreatment system.
- Each of the first mixing element and the second mixing element is adapted to improve a mixing of the first stream and the second stream within the first module and the second module, respectively.
- an engine in another aspect of the present disclosure, includes an engine block and a plurality of cylinders provided in the engine block.
- the engine includes a cylinder head provided on the engine block.
- the engine also includes an exhaust manifold fluidly coupled to the plurality of cylinders.
- the exhaust manifold is adapted to receive a high-volume exhaust flow from the plurality of cylinders.
- the engine further includes an aftertreatment system fluidly coupled to the exhaust manifold.
- the aftertreatment system is adapted to receive and treat the high-volume exhaust flow from the exhaust manifold.
- the aftertreatment system includes a first module having a first mixing element.
- the aftertreatment system includes a second module having a second mixing element.
- the second module has a configuration similar to a configuration of the first module.
- the aftertreatment system includes a main inlet conduit fluidly coupled to the exhaust manifold.
- the main inlet conduit is adapted to receive the exhaust flow from the exhaust manifold.
- the aftertreatment system includes a first inlet conduit fluidly coupled to the main inlet conduit and the first module.
- the aftertreatment system includes a second inlet conduit fluidly coupled to the main inlet conduit and the second module.
- the aftertreatment system also includes a first outlet conduit fluidly coupled to the first module.
- the aftertreatment system further includes a second outlet conduit fluidly coupled to the second module.
- Each of the first inlet conduit and the second inlet conduit is adapted to split the exhaust flow downstream of the main inlet conduit into a first stream and a second stream flowing therethrough respectively.
- the splitting of the exhaust flow is adapted to limit a backpressure within the aftertreatment system.
- Each of the first mixing element and the second mixing element is adapted to improve a mixing of the first stream and the second stream within the first module and the second module, respectively.
- a method for limiting a backpressure within an aftertreatment system having a high-volume exhaust flow therethrough includes receiving the exhaust flow through a main inlet conduit.
- the method includes splitting the exhaust flow downstream of the main inlet conduit in a first stream using a first inlet conduit, and a second stream using a second inlet conduit.
- the method includes receiving the first stream through a first module.
- the method includes receiving the second stream through a second module.
- the method also includes flowing the first stream from the first module through a first outlet conduit.
- the method further includes flowing the second stream from the second module through a second outlet conduit.
- the engine 102 is an internal combustion engine powered by any fuel known in the art, such as natural gas, diesel, gasoline, and/or a combination thereof.
- the engine 102 may be associated with a machine (not shown) including but not limited to, a locomotive, a marine vessel, a land vehicle, and a power generator, among others.
- the engine 102 and/or the machine may be employed in any industry including, but not limited to, construction, agriculture, forestry, mining, transportation, waste management, aviation, marine, material handling, and power generation.
- the engine 102 includes an engine block 104.
- the engine block 104 includes one or more cylinders 105 provided therein.
- the cylinders 105 may be arranged in any configuration including but not limited to, an inline, radial, and "V", among others.
- Each of the cylinders 105 is adapted to receive a piston (not shown) therein.
- the cylinders 105 are adapted to generate a high-volume exhaust flow therefrom.
- the engine 102 also includes a cylinder head 106 mounted on the engine block 104.
- the cylinder head 106 houses one or more components and/or systems of the engine 102 including but not limited to, an intake manifold 107, a valve train (not shown), and sensors (not shown), among others.
- the engine 102 also includes an exhaust manifold 108 provided on the cylinder head 106.
- the exhaust manifold 108 may be coupled to the cylinder head 106.
- the exhaust manifold 108 may be integral with respect to the cylinder head 106, based on application requirements.
- the exhaust manifold 108 is fluidly coupled to the cylinders 105. Accordingly, the exhaust manifold 108 is adapted to receive the high-volume exhaust flow from the cylinders 105.
- the engine 102 may include various other components and/or systems (not shown) including but not limited to, a crankcase, a fuel system, an air system, a cooling system, a lubrication system, a turbocharger, an exhaust gas recirculation system, and other peripheries, among others.
- an aftertreatment system 202 is illustrated.
- the aftertreatment system 202 may be associated with the engine 102.
- the aftertreatment system 202 will be hereinafter interchangeably referred to as "the system 202".
- the system 202 is fluidly coupled to the exhaust manifold 108. Accordingly, the system 202 is adapted to receive and treat the high-volume exhaust flow from the exhaust manifold 108.
- the system 202 is adapted to treat exhaust gases present in the exhaust flow using various methods known in the art including but not limited to, filtration, oxidation, and reduction, among others.
- the system 202 includes a main inlet conduit 204.
- the main inlet conduit 204 is fluidly coupled to the exhaust manifold 108. Accordingly, the main inlet conduit 204 is adapted to receive the exhaust flow therein, as shown by an arrow 206, from the exhaust manifold 108.
- the main inlet conduit 204 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis X-X' thereof.
- the main inlet conduit 204 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements.
- the system 202 includes a first inlet conduit 208 and a second inlet conduit 210.
- each of the first inlet conduit 208 and the second inlet conduit 210 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis Y-Y', Z-Z' thereof respectively.
- each of the first inlet conduit 208 and the second inlet conduit 210 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements.
- each of the first inlet conduit 208 and the second inlet conduit 210 includes a first portion 212, 214 and a second portion 216, 218 thereof respectively.
- the first portion 212 of the first inlet conduit 208 is inclined with respect to the second portion 216 thereof defining an angle "P1" therebetween.
- the first portion 214 of the second inlet conduit 210 is inclined with respect to the second portion 218 thereof defining an angle "P2" therebetween.
- the angle "P1" is equal to the angle "P2". In other embodiments, the angle "P1" may vary with respect to the angle "P2", based on application requirements.
- first inlet conduit 208 and the second inlet conduit 210 is fluidly coupled to the main inlet conduit 204. More specifically, the first portion 212 of the first inlet conduit 208 is coupled to the main inlet conduit 204 defining an angle "A1" with respect to the longitudinal axis X-X' of the main inlet conduit 204. Also, the first portion 214 of the second inlet conduit 210 is coupled to the main inlet conduit 204 defining an angle "A2" with respect to the longitudinal axis X-X' of the main inlet conduit 204. In the illustrated embodiment, the angle “A1" is equal to the angle "A2". In other embodiments, the angle "A1" may vary with respect to the angle "A2", based on application requirements.
- Each of the first inlet conduit 208 and the second inlet conduit 210 is adapted to split the exhaust flow downstream of the main inlet conduit 204 into a first stream 220 and a second stream 222 flowing therethrough respectively.
- a cross-sectional area of the first inlet conduit 208 is equal to a cross-sectional area of the second inlet conduit 210.
- a volume of the first stream 220 is equal to a volume of the second stream 222.
- the exhaust flow is split downstream of the main inlet conduit 204 in a ratio of 50:50 in the first stream 220 and the second stream 222 respectively.
- the cross-sectional area of the first inlet conduit 208 may be different with respect to the cross-sectional area of the second inlet conduit 210. Accordingly, the volume of the first stream 220 may vary with respect to the volume of the second stream 222.
- the exhaust flow may be split downstream of the main inlet conduit 204 in any ratio including but not limited to, 40:60, 60:40, 30:70, and 70:30, among others, in the first stream 220 and the second stream 222 respectively, based on application requirements.
- the splitting of the exhaust flow downstream of the main inlet conduit 204 into the first stream 220 and the second stream 222 is adapted to limit a backpressure within the system 202 and/or on the engine 102.
- the system 202 includes a first module 224 fluidly coupled to the first inlet conduit 208. More specifically, the first module 224 includes a first sub-module 226 and a second sub-module 228. The first sub-module 226 is fluidly coupled to the second portion 216 of the first inlet conduit 208. Accordingly, the first sub-module 226 is adapted to receive the first stream 220 therein from the first inlet conduit 208.
- Each of the first sub-module 226 and the second sub-module 228 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis M-M', N-N' thereof respectively.
- each of the first sub-module 226 and the second sub-module 228 may include any other configuration including but not limited to, rectangular, and triangular, among others, based on application requirements.
- each of the first sub-module 226 and the second sub-module 228 includes a first end 230, 232 and a second end 234, 236 respectively. The first end 230, 232 is distal with respect to the second end 234, 236 respectively.
- Each of the first sub-module 226 and the second sub-module 228 is adapted to house one or more components of the system 202.
- the first sub-module 226 includes a first filter element (not shown).
- the first filter element is adapted to filter particulate matter from the first stream 220.
- the first filter element may be any filter element known in the art including but not limited to, a Diesel Particulate Filter (DPF), and a partial flow filter, among others.
- DPF Diesel Particulate Filter
- the first sub-module 226 may also include other components not shown herein, based on application requirements.
- the second sub-module 228 includes a first catalytic reduction unit (not shown).
- the first catalytic reduction unit is adapted to reduce Nitrogen Oxides (NOx) present in the first stream 220.
- the first catalytic reduction unit may be any catalytic converter known in the art, such as a Selective Catalytic Reduction (SCR) unit.
- SCR Selective Catalytic Reduction
- the second sub-module 228 may also include other components, such as an Ammonia Oxidation Catalyst (AOC) unit (not shown), based on application requirements.
- AOC Ammonia Oxidation Catalyst
- the first module 224 further includes a first auxiliary conduit 238.
- the first auxiliary conduit 238 is fluidly coupled to the first sub-module 226 and the second sub-module 228. More specifically, the first auxiliary conduit 238 is fluidly coupled to the second end 234 of the first sub-module 226 and the first end 232 of the second sub-module 228. Accordingly, the first auxiliary conduit 238 is adapted to receive the first stream 220 therein from the first sub-module 226, and further allow flow of the first stream 220 into the second sub-module 228.
- the first auxiliary conduit 238 includes a first dosing unit (not shown) and a first mixing element (not shown) therein.
- the first dosing unit is adapted to inject a reductant fluid in the first stream 220.
- the first dosing unit may be any dosing unit known in the art, such as a Diesel Exhaust Fluid (DEF) dosing unit.
- the first mixing element may be any mixing unit known in the art including but not limited to, a perforated type mixing unit, a flap type mixing unit, a turbulence flow type mixing unit, a spiral flow type mixing unit, and/or a combination thereof, among others.
- the first mixing element is adapted to improve a mixing of the reductant fluid and the first stream 220 within the first module 224.
- the first auxiliary conduit 238 may include any other component/s of the system 202, based on application requirements.
- first module 224 may include a single sub-module without the first auxiliary conduit 238.
- first module 224 may include multiple sub-modules, of which each sub-module may or may not have a first auxiliary conduit 238, based on application requirements. Also, location, sequence, configuration, and inclusion of the first filter element, the DEF dosing unit, the first mixing element, the first catalytic reduction unit, and/or the AOC unit within the first sub-module 226, the second sub-module 228, and/or the first auxiliary conduit 238 may vary based on application requirements.
- the system 202 also includes a second module 240 fluidly coupled to the second inlet conduit 210.
- the second module 240 includes a configuration similar to a configuration of the first module 224. Accordingly, the second module 240 includes a third sub-module 242 and a fourth sub-module 244.
- the third sub-module 242 is fluidly coupled to the second portion 218 of the second inlet conduit 210. Accordingly, the third sub-module 242 is adapted to receive the second stream 222 therein from the second inlet conduit 210.
- Each of the third sub-module 242 and the fourth sub-module 244 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis O-O', P-P' thereof respectively.
- each of the third sub-module 242 and the fourth sub-module 244 may include any other configuration including but not limited to, rectangular, and triangular, among others, based on application requirements.
- each of the third sub-module 242 and the fourth sub-module 244 includes a first end 246, 248 and a second end 250, 252 respectively. The first end 246, 248 is distal with respect to the second end 250, 252 respectively.
- Each of the third sub-module 242 and the fourth sub-module 244 is adapted to house one or more components of the system 202.
- the third sub-module 242 includes a second filter element (not shown).
- the second filter element is adapted to filter particulate matter from the second stream 222.
- the second filter element may be any filter element known in the art including but not limited to, the Diesel Particulate Filter (DPF), and the partial flow filter, among others.
- the third sub-module 242 may also include other components not shown herein, based on application requirements.
- the fourth sub-module 244 includes a second catalytic reduction unit (not shown).
- the second catalytic reduction unit is adapted to reduce Nitrogen Oxides (NOx) present in the second stream 222.
- the second catalytic reduction unit may be any catalytic converter known in the art, such as the Selective Catalytic Reduction (SCR) unit. Additionally, or optionally, the fourth sub-module 244 may also include other components, such as the Ammonia Oxidation Catalyst (AOC) unit, based on application requirements.
- AOC Ammonia Oxidation Catalyst
- the second module 240 further includes a second auxiliary conduit 254.
- the second auxiliary conduit 254 is fluidly coupled to the third sub-module 242 and the fourth sub-module 244. More specifically, the second auxiliary conduit 254 is fluidly coupled to the second end 250 of the third sub-module 242 and the first end 248 of the fourth sub-module 244. Accordingly, the second auxiliary conduit 254 is adapted to receive the second stream 222 therein from the third sub-module 242, and further allow flow of the second stream 222 into the fourth sub-module 244.
- the second auxiliary conduit 254 includes a second dosing unit (not shown) and a second mixing element (not shown) therein.
- the second dosing unit is adapted to inject the reductant fluid in the second stream 222.
- the second dosing unit may be any dosing unit known in the art, such as the Diesel Exhaust Fluid (DEF) dosing unit.
- the second mixing element may be any mixing unit known in the art including but not limited to, the perforated type mixing unit, the flap type mixing unit, the turbulence flow type mixing unit, the spiral flow type mixing unit, and/or a combination thereof, among others.
- the second mixing element is adapted to improve a mixing of the reductant fluid and the second stream 222 within the second module 240.
- the second auxiliary conduit 254 may include any other component/s of the system 202, based on application requirements.
- the second module 240 may include a single sub-module without the second auxiliary conduit 254.
- the second module 240 may include multiple sub-modules, of which each sub-module may or may not have a second auxiliary conduit 254, based on application requirements. Also, location, sequence, configuration, and inclusion of the second filter element, the DEF dosing unit, the second mixing element, the second catalytic reduction unit, and/or the AOC unit within the third sub-module 242, the fourth sub-module 244, and/or the second auxiliary conduit 254 may vary based on application requirements.
- the system 202 includes a first outlet conduit 256 and a second outlet conduit 258.
- each of the first outlet conduit 256 and the second outlet conduit 258 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis Q-Q', R-R' thereof respectively.
- each of the first outlet conduit 256 and the second outlet conduit 258 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements.
- each of the first outlet conduit 256 and the second outlet conduit 258 includes a first portion 260, 262 and a second portion 264, 266 thereof respectively.
- the first portion 260 of the first outlet conduit 256 is inclined with respect to the second portion 264 thereof defining an angle "P3" therebetween.
- the first portion 262 of the second outlet conduit 258 is inclined with respect to the second portion 266 thereof defining an angle "P4" therebetween.
- the angle "P3" is equal to the angle "P4". In other embodiments, the angle "P3” may vary with respect to the angle "P4", based on application requirements.
- the first outlet conduit 256 is fluidly coupled to the first module 224. More specifically, in the illustrated embodiment, the second portion 264 of the first outlet conduit 256 is fluidly coupled to the second sub-module 228 of the first module 224. Accordingly, the first outlet conduit 256 is adapted to receive the first stream 220 therein from the second sub-module 228. Also, the second outlet conduit 258 is fluidly coupled to the second module 240. More specifically, in the illustrated embodiment, the second portion 266 of the second outlet conduit 258 is fluidly coupled to the fourth sub-module 244 of the second module 240. Accordingly, the second outlet conduit 258 is adapted to receive the second stream 222 therein from the fourth sub-module 244.
- the system 202 also includes a main outlet conduit 268.
- the main outlet conduit 268 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis S-S' thereof.
- the main outlet conduit 268 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements.
- the main outlet conduit 268 is fluidly coupled to each of the first outlet conduit 256 and the second outlet conduit 258.
- the main outlet conduit 268 is adapted to receive the first stream 220 and the second stream 222 therein from the first outlet conduit 256 and the second outlet conduit 258 respectively. Also, the main outlet conduit 268 is adapted to merge the first stream 220 and the second stream 222 therein, as shown by an arrow 270.
- the main outlet conduit 268 may be further fluidly coupled to a downstream component (not shown) including but not limited to, a muffler, a silencer, a funnel, and a flare, among others, based on application requirements.
- each of the first outlet conduit 256 and the second outlet conduit 258 is inclined with respect to the main outlet conduit 268. More specifically, the first portion 260 of the first outlet conduit 256 is coupled to the main outlet conduit 268 defining an angle "A3" with respect to the longitudinal axis S-S' of the main outlet conduit 268. Also, the first portion 262 of the second outlet conduit 258 is coupled to the main outlet conduit 268 defining an angle "A4" with respect to the longitudinal axis S-S' of the main outlet conduit 268. In the illustrated embodiment, the angle “A3” is equal to the angle "A4". In other embodiments, the angle "A3" may vary with respect to the angle "A4", based on application requirements.
- a cross-sectional area of the first outlet conduit 256 is equal to a cross-sectional area of the second outlet conduit 258. Accordingly, the volume of the first stream 220 flowing through the first outlet conduit 256 is equal to the volume of the second stream 222 flowing through the second outlet conduit 258. In other embodiments, the cross-sectional area of the first outlet conduit 256 may be different with respect to the cross-sectional area of the second outlet conduit 258. Accordingly, the volume of the first stream 220 may vary with respect to the volume of the second stream 222 including but not limited to, 40:60, 60:40, 30:70, and 70:30, among others, in the first outlet conduit 256 and the second outlet conduit 258 respectively, based on application requirements.
- the first module 224 including the first sub-module 226 and the second sub-module 228, and the second module 240 including the third sub-module 242, and the fourth sub-module 244 may be oriented in any configuration with respect to one another, based on application requirements. For example, referring to FIGS. 2 , 3 , and 4 , each of the first sub-module 226, the second sub-module 228, the third sub-module 242, and the fourth sub-module 244 is disposed parallel to and spaced apart with respect to one another in a single horizontal plane.
- the first module 224 is disposed parallel to and spaced apart with respect to the second module 240 in separate vertical planes respectively.
- each of the first sub-module 226 and the second sub-module 228 is disposed parallel to and spaced apart with respect to one another in a single vertical plane in a stacked configuration.
- each of the third sub-module 242 and the fourth sub-module 244 is disposed parallel to and spaced apart with respect to one another in a single vertical plane in the stacked configuration.
- the first inlet conduit 208, the second inlet conduit 210, the first outlet conduit 256, and the second outlet conduit 258 may be coupled to the first module 224 and the second module 240 respectively in any orientation, based on application requirements.
- the second portion 216 of the first inlet conduit 208 is oriented parallel to the longitudinal axis M-M' of the first sub-module 226.
- the second portion 216 of the first inlet conduit 208 is coupled to the first end 230 of the first sub-module 226 along a lateral axis T-T' of the first sub-module 226.
- the second portion 218 of the second inlet conduit 210 is oriented parallel to the longitudinal axis O-O' of the third sub-module 242. Also, the second portion 218 of the second inlet conduit 210 is coupled to the first end 246 of the third sub-module 242 along a lateral axis U-U' of the third sub-module 242.
- the second portion 264 of the first outlet conduit 256 is oriented parallel to the longitudinal axis N-N' of the second sub-module 228. Also, the second portion 264 of the first outlet conduit 256 is coupled to the second end 236 of the second sub-module 228 along a lateral axis V-V' of the second sub-module 228.
- the second portion 266 of the second outlet conduit 258 is oriented parallel to the longitudinal axis P-P' of the fourth sub-module 244. Also, the second portion 266 of second outlet conduit 258 is coupled to the second end 252 of the fourth sub-module 244 along a lateral axis W-W' of the fourth sub-module 244.
- the second portion 216 of the first inlet conduit 208 is coupled to the first end 230 of the first sub-module 226 at an angle "B1" with respect to the lateral axis T-T' of the first sub-module 226.
- the second portion 218 of the second inlet conduit 210 is coupled to the first end 246 of the third sub-module 242 inclined at an angle "B2" with respect to the lateral axis U-U' of the third sub-module 242.
- first outlet conduit 256 is coupled to the second end 236 of the second sub-module 228 inclined at an angle "B3" with respect to the lateral axis V-V' of the second sub-module 228.
- the second portion 266 of second outlet conduit 258 is coupled to the second end 252 of the fourth sub-module 244 inclined at an angle "B4" with respect to the lateral axis W-W' of the fourth sub-module 244.
- each of the angles "B1", “B2”, “B3”, and “B4" is equal to one another. In other embodiments, one or more of the angles "B1", “B2", “B3”, and “B4" may vary with respect to one another, based on application requirements.
- first module 224 the orientation, arrangement, location, configuration of the first module 224, the first sub-module 226, the second sub-module 228, the second module 240, the third sub-module 242, the fourth sub-module 244, the first inlet conduit 208, the second inlet conduit 210, the first outlet conduit 256, and/or the second outlet conduit 258 described herein is merely exemplary and may vary based on application requirements.
- one or more sub-modules of the system 202 may be arranged in a single horizontal or vertical plane, and a remaining of the sub-modules may be arranged in a separate horizontal or vertical plane, based on application requirements.
- one or more conduits of the system 202 may be oriented along any axis of the respective sub-module, and a remaining of the conduits may be oriented at any other angle with respect to any axis of the respective sub-module, based on application requirements
- the system 202 may include one or more mounting elements 272 including but not limited to, one or more mounting brackets, and fasteners, among others.
- the mounting elements 272 are adapted to mount the system 202 on ground or with respect to one another.
- the mounting elements 272 are arranged horizontally to receive the first module 224 and the second module 240 thereon in order to mount the system 202 on the ground.
- the mounting elements 272 are arranged vertically to receive the first module 224 and the second module 240 thereon in order to mount the system 202 in the stacked configuration.
- the present disclosure relates to a method 700 of working of the aftertreatment system 202.
- a flowchart of the method 700 is illustrated.
- the main inlet conduit 204 receives the high-volume exhaust flow therein, as shown by the arrow 206.
- the exhaust flow is received through the main inlet conduit 204 from the exhaust manifold 108 of the engine 102.
- the exhaust flow is split downstream of the main inlet conduit 204. More specifically, the exhaust flow is split in the first stream 220 using the first inlet conduit 208. Also, the exhaust flow is split in the second stream 222 using the second inlet conduit 210. In other embodiments, the exhaust flow may be split in multiple streams, based on application requirements.
- the splitting of the high-volume exhaust flow provides to limit the backpressure within the system 202 and/or the engine 102.
- the first stream 220 is received through the first module 224 from the first inlet conduit 208. More specifically, the first stream 220 is received through the first sub-module 226, the first auxiliary conduit 238, and the second sub-module 228. As such, the first stream 220 may be received through the first filter element, the DEF dosing unit, the first mixing element, the first catalytic reduction unit, and/or the AOC unit. The first mixing element provides to improve the mixing of the first stream 220 within the first module 224.
- the second stream 222 is received through the second module 240 from the second inlet conduit 210. More specifically, the second stream 222 is received through the third sub-module 242, the second auxiliary conduit 254, and the fourth sub-module 244. As such, the second stream 222 may be received through the second filter element, the DEF dosing unit, the second mixing element, the second catalytic reduction unit, and/or the AOC unit.
- the second mixing element provides to improve the mixing of the second stream 222 within the second module 240. It should be noted that the step 706 and the step 708 are performed simultaneously.
- the first stream 220 is flown out from the first module 224 through the first outlet conduit 256.
- the second stream 222 is flown from the second module 240 through the second outlet conduit 258. Additionally, or optionally, the first stream 220 and the second stream 222 is merged downstream of the first module 224 and the second module 240 respectively. In such a situation, the first stream 220 and the second stream 222 is merged in the main outlet conduit 268 downstream of the first module 224 and the second module 240 respectively, as shown by the arrow 270. It should be noted that the step 710 and the step 712 are performed simultaneously.
- the system 202 provides a simple, effective, and cost-efficient method for limiting the backpressure and for improving the mixing of the exhaust flow within the system 202 during the high-volume exhaust flow.
- the system 202 employs a relatively small size of the first module 224 and the second module 240 with respect to a single, large aftertreatment module. Accordingly, development and manufacturing cost for the system 202 may be substantially lower compared to development and manufacturing cost for the single, large aftertreatment module.
- the system 202 also provides a modular design based on application or user requirements. More specifically, multiple modules/sub-modules similar to the first module 224 and the second module 240 may be added to the system 202 in order to increase a capacity thereof, and/or to limiting the backpressure within the system 202 and/or on the engine 102. Also, the first module 224 and the second module 240 may have a configuration similar to an existing aftertreatment module, in turn, reducing an overall cost of the system 202. The system 202 may be retrofitted in any high-volume exhaust flow system with little or no modification to the existing system.
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Abstract
An aftertreatment system (202) for treating a high-volume exhaust flow is provided. The aftertreatment system (202) includes a first module (224) and a second module (240). The aftertreatment system (202) also includes a main inlet conduit (204), a first inlet conduit (208), a second inlet conduit (210), a first outlet conduit (256), and a second outlet conduit (258). Each of the first inlet conduit (208) and the second inlet conduit (210) is adapted to split the exhaust flow downstream of the main inlet conduit (204) into a first stream (220) and a second stream (222) flowing therethrough respectively. The splitting of the exhaust flow is adapted to limit a backpressure within the aftertreatment system (202).
Description
- The present disclosure relates to an aftertreatment system. More particularly, the present disclosure relates to an aftertreatment system for treating a high-volume exhaust flow.
- Large internal combustion engines, such as used for marine applications, power generation, and other applications, may generate a high-volume exhaust flow during an operation. Such high-volume exhaust flow may be treated within an aftertreatment system to comply with emissions control standards. However, the high volume of exhaust gases flowing through various components of an aftertreatment system can result in excessive backpressure within the aftertreatment system due to a limited flow capacity of the exhaust flow through the aftertreatment system.
- In some situations, the flow capacity of the aftertreatment system may be increased by increasing the diameter or length (or other dimensions) of pipes and other components of the aftertreatment systems, including, but not limited to, a catalyst, a mixing element, a filter, and a housing. This may lead to an increase in the overall size of the aftertreatment system. The increase in size of the aftertreatment system and the components thereof may, in turn, result in increased costs such as research and development cost, manufacturing cost, new tooling, among other costs. Hence, there is a need for an improved aftertreatment system for treating high-volume exhaust flow while mitigating such cost increases.
- German Patent Number
4,114,745 describes an exhaust system for a four-stroke combustion engine. The engine operates at a pulsating working frequency driven by a number of cylinders each of which has an outlet to a manifold for the pulsating emission of exhaust gases. Two pulsating exhaust gas flows are passed through a catalyst matrix phase shifted against each other from one third to two thirds of the period of the working frequency. Each pulsating exhaust flow is supplied via a manifold merged from groups of two cylinders. The resulting common exhaust manifolds conjoin the catalytic converter matrix from opposite ends. The treated exhaust gases leave the catalytic matrix by a common exhaust pipe. - In an aspect of the present disclosure, an aftertreatment system for treating a high-volume exhaust flow is provided. The aftertreatment system includes a first module having a first mixing element. The aftertreatment system includes a second module having a second mixing element. The second module has a configuration similar to a configuration of the first module. The aftertreatment system includes a main inlet conduit adapted to receive the exhaust flow. The aftertreatment system includes a first inlet conduit fluidly coupled to the main inlet conduit and the first module. The aftertreatment system includes a second inlet conduit fluidly coupled to the main inlet conduit and the second module. The aftertreatment system also includes a first outlet conduit fluidly coupled to the first module. The aftertreatment system further includes a second outlet conduit fluidly coupled to the second module. Each of the first inlet conduit and the second inlet conduit is adapted to split the exhaust flow downstream of the main inlet conduit into a first stream and a second stream flowing therethrough respectively. The splitting of the exhaust flow is adapted to limit a backpressure within the aftertreatment system. Each of the first mixing element and the second mixing element is adapted to improve a mixing of the first stream and the second stream within the first module and the second module, respectively.
- In another aspect of the present disclosure, an engine is provided. The engine includes an engine block and a plurality of cylinders provided in the engine block. The engine includes a cylinder head provided on the engine block. The engine also includes an exhaust manifold fluidly coupled to the plurality of cylinders. The exhaust manifold is adapted to receive a high-volume exhaust flow from the plurality of cylinders. The engine further includes an aftertreatment system fluidly coupled to the exhaust manifold. The aftertreatment system is adapted to receive and treat the high-volume exhaust flow from the exhaust manifold. The aftertreatment system includes a first module having a first mixing element. The aftertreatment system includes a second module having a second mixing element. The second module has a configuration similar to a configuration of the first module. The aftertreatment system includes a main inlet conduit fluidly coupled to the exhaust manifold. The main inlet conduit is adapted to receive the exhaust flow from the exhaust manifold. The aftertreatment system includes a first inlet conduit fluidly coupled to the main inlet conduit and the first module. The aftertreatment system includes a second inlet conduit fluidly coupled to the main inlet conduit and the second module. The aftertreatment system also includes a first outlet conduit fluidly coupled to the first module. The aftertreatment system further includes a second outlet conduit fluidly coupled to the second module. Each of the first inlet conduit and the second inlet conduit is adapted to split the exhaust flow downstream of the main inlet conduit into a first stream and a second stream flowing therethrough respectively. The splitting of the exhaust flow is adapted to limit a backpressure within the aftertreatment system. Each of the first mixing element and the second mixing element is adapted to improve a mixing of the first stream and the second stream within the first module and the second module, respectively.
- In yet another aspect of the present disclosure, a method for limiting a backpressure within an aftertreatment system having a high-volume exhaust flow therethrough is provided. The method includes receiving the exhaust flow through a main inlet conduit. The method includes splitting the exhaust flow downstream of the main inlet conduit in a first stream using a first inlet conduit, and a second stream using a second inlet conduit. The method includes receiving the first stream through a first module. The method includes receiving the second stream through a second module. The method also includes flowing the first stream from the first module through a first outlet conduit. The method further includes flowing the second stream from the second module through a second outlet conduit.
- Other features and aspects of this disclosure will be apparent from the following description and the accompanying drawings.
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FIG. 1 is a perspective view of an exemplary engine, according to one embodiment of the present disclosure; -
FIG. 2 is a top view of an aftertreatment system for the engine ofFIG. 1 , according to one embodiment of the present disclosure; -
FIG. 3 is a perspective view of the aftertreatment system ofFIG. 2 , according to one embodiment of the present disclosure; -
FIG. 4 is a perspective view of an aftertreatment system for the engine ofFIG. 1 , according to another embodiment of the present disclosure; -
FIG. 5 is a perspective view of an aftertreatment system for the engine ofFIG. 1 , according to another embodiment of the present disclosure; -
FIG. 6 is a front view of the aftertreatment system ofFIG. 5 , according to one embodiment of the present disclosure; and -
FIG. 7 is a flowchart illustrating a method of working of the aftertreatment system ofFIGS. 2 ,4 , and5 , according to an embodiment of the present disclosure. - Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or the like parts. Referring to
FIG. 1 , anexemplary engine 102 is illustrated. Theengine 102 is an internal combustion engine powered by any fuel known in the art, such as natural gas, diesel, gasoline, and/or a combination thereof. In some embodiments, theengine 102 may be associated with a machine (not shown) including but not limited to, a locomotive, a marine vessel, a land vehicle, and a power generator, among others. Theengine 102 and/or the machine may be employed in any industry including, but not limited to, construction, agriculture, forestry, mining, transportation, waste management, aviation, marine, material handling, and power generation. - The
engine 102 includes anengine block 104. Theengine block 104 includes one ormore cylinders 105 provided therein. Thecylinders 105 may be arranged in any configuration including but not limited to, an inline, radial, and "V", among others. Each of thecylinders 105 is adapted to receive a piston (not shown) therein. Thecylinders 105 are adapted to generate a high-volume exhaust flow therefrom. Theengine 102 also includes acylinder head 106 mounted on theengine block 104. Thecylinder head 106 houses one or more components and/or systems of theengine 102 including but not limited to, anintake manifold 107, a valve train (not shown), and sensors (not shown), among others. - The
engine 102 also includes anexhaust manifold 108 provided on thecylinder head 106. In one embodiment, theexhaust manifold 108 may be coupled to thecylinder head 106. In another embodiment, theexhaust manifold 108 may be integral with respect to thecylinder head 106, based on application requirements. Theexhaust manifold 108 is fluidly coupled to thecylinders 105. Accordingly, theexhaust manifold 108 is adapted to receive the high-volume exhaust flow from thecylinders 105. Additionally, theengine 102 may include various other components and/or systems (not shown) including but not limited to, a crankcase, a fuel system, an air system, a cooling system, a lubrication system, a turbocharger, an exhaust gas recirculation system, and other peripheries, among others. - Referring to
FIGS. 2 ,3 ,4 ,5 , and6 , anaftertreatment system 202 is illustrated. In certain aspects of the present disclosure, theaftertreatment system 202 may be associated with theengine 102. Theaftertreatment system 202 will be hereinafter interchangeably referred to as "thesystem 202". Thesystem 202 is fluidly coupled to theexhaust manifold 108. Accordingly, thesystem 202 is adapted to receive and treat the high-volume exhaust flow from theexhaust manifold 108. Thesystem 202 is adapted to treat exhaust gases present in the exhaust flow using various methods known in the art including but not limited to, filtration, oxidation, and reduction, among others. - The
system 202 includes amain inlet conduit 204. Themain inlet conduit 204 is fluidly coupled to theexhaust manifold 108. Accordingly, themain inlet conduit 204 is adapted to receive the exhaust flow therein, as shown by anarrow 206, from theexhaust manifold 108. In the illustrated embodiment, themain inlet conduit 204 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis X-X' thereof. In other embodiments, themain inlet conduit 204 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements. - The
system 202 includes afirst inlet conduit 208 and asecond inlet conduit 210. In the illustrated embodiment, each of thefirst inlet conduit 208 and thesecond inlet conduit 210 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis Y-Y', Z-Z' thereof respectively. In other embodiments, each of thefirst inlet conduit 208 and thesecond inlet conduit 210 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements. - Also, each of the
first inlet conduit 208 and thesecond inlet conduit 210 includes afirst portion second portion first portion 212 of thefirst inlet conduit 208 is inclined with respect to thesecond portion 216 thereof defining an angle "P1" therebetween. Thefirst portion 214 of thesecond inlet conduit 210 is inclined with respect to thesecond portion 218 thereof defining an angle "P2" therebetween. In the illustrated embodiment, the angle "P1" is equal to the angle "P2". In other embodiments, the angle "P1" may vary with respect to the angle "P2", based on application requirements. - Each of the
first inlet conduit 208 and thesecond inlet conduit 210 is fluidly coupled to themain inlet conduit 204. More specifically, thefirst portion 212 of thefirst inlet conduit 208 is coupled to themain inlet conduit 204 defining an angle "A1" with respect to the longitudinal axis X-X' of themain inlet conduit 204. Also, thefirst portion 214 of thesecond inlet conduit 210 is coupled to themain inlet conduit 204 defining an angle "A2" with respect to the longitudinal axis X-X' of themain inlet conduit 204. In the illustrated embodiment, the angle "A1" is equal to the angle "A2". In other embodiments, the angle "A1" may vary with respect to the angle "A2", based on application requirements. - Each of the
first inlet conduit 208 and thesecond inlet conduit 210 is adapted to split the exhaust flow downstream of themain inlet conduit 204 into afirst stream 220 and asecond stream 222 flowing therethrough respectively. In the illustrated embodiment, a cross-sectional area of thefirst inlet conduit 208 is equal to a cross-sectional area of thesecond inlet conduit 210. Accordingly, a volume of thefirst stream 220 is equal to a volume of thesecond stream 222. As such, the exhaust flow is split downstream of themain inlet conduit 204 in a ratio of 50:50 in thefirst stream 220 and thesecond stream 222 respectively. - In other embodiments, the cross-sectional area of the
first inlet conduit 208 may be different with respect to the cross-sectional area of thesecond inlet conduit 210. Accordingly, the volume of thefirst stream 220 may vary with respect to the volume of thesecond stream 222. As such, the exhaust flow may be split downstream of themain inlet conduit 204 in any ratio including but not limited to, 40:60, 60:40, 30:70, and 70:30, among others, in thefirst stream 220 and thesecond stream 222 respectively, based on application requirements. The splitting of the exhaust flow downstream of themain inlet conduit 204 into thefirst stream 220 and thesecond stream 222 is adapted to limit a backpressure within thesystem 202 and/or on theengine 102. - The
system 202 includes afirst module 224 fluidly coupled to thefirst inlet conduit 208. More specifically, thefirst module 224 includes a first sub-module 226 and asecond sub-module 228. The first sub-module 226 is fluidly coupled to thesecond portion 216 of thefirst inlet conduit 208. Accordingly, the first sub-module 226 is adapted to receive thefirst stream 220 therein from thefirst inlet conduit 208. - Each of the first sub-module 226 and the second sub-module 228 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis M-M', N-N' thereof respectively. In other embodiments, each of the first sub-module 226 and the second sub-module 228 may include any other configuration including but not limited to, rectangular, and triangular, among others, based on application requirements. Accordingly, each of the first sub-module 226 and the second sub-module 228 includes a
first end second end first end second end - Each of the first sub-module 226 and the second sub-module 228 is adapted to house one or more components of the
system 202. For example, in the illustrated embodiment, the first sub-module 226 includes a first filter element (not shown). The first filter element is adapted to filter particulate matter from thefirst stream 220. The first filter element may be any filter element known in the art including but not limited to, a Diesel Particulate Filter (DPF), and a partial flow filter, among others. Additionally, or optionally, the first sub-module 226 may also include other components not shown herein, based on application requirements. - Also, the second sub-module 228 includes a first catalytic reduction unit (not shown). The first catalytic reduction unit is adapted to reduce Nitrogen Oxides (NOx) present in the
first stream 220. The first catalytic reduction unit may be any catalytic converter known in the art, such as a Selective Catalytic Reduction (SCR) unit. Additionally, or optionally, the second sub-module 228 may also include other components, such as an Ammonia Oxidation Catalyst (AOC) unit (not shown), based on application requirements. - The
first module 224 further includes a firstauxiliary conduit 238. The firstauxiliary conduit 238 is fluidly coupled to the first sub-module 226 and thesecond sub-module 228. More specifically, the firstauxiliary conduit 238 is fluidly coupled to thesecond end 234 of the first sub-module 226 and thefirst end 232 of thesecond sub-module 228. Accordingly, the firstauxiliary conduit 238 is adapted to receive thefirst stream 220 therein from the first sub-module 226, and further allow flow of thefirst stream 220 into thesecond sub-module 228. - The first
auxiliary conduit 238 includes a first dosing unit (not shown) and a first mixing element (not shown) therein. The first dosing unit is adapted to inject a reductant fluid in thefirst stream 220. The first dosing unit may be any dosing unit known in the art, such as a Diesel Exhaust Fluid (DEF) dosing unit. The first mixing element may be any mixing unit known in the art including but not limited to, a perforated type mixing unit, a flap type mixing unit, a turbulence flow type mixing unit, a spiral flow type mixing unit, and/or a combination thereof, among others. The first mixing element is adapted to improve a mixing of the reductant fluid and thefirst stream 220 within thefirst module 224. In other embodiments, the firstauxiliary conduit 238 may include any other component/s of thesystem 202, based on application requirements. - It should be noted that the first sub-module 226, the second sub-module 228, and the first
auxiliary conduit 238 described herein is merely exemplary. In another embodiment, thefirst module 224 may include a single sub-module without the firstauxiliary conduit 238. In yet another embodiment, thefirst module 224 may include multiple sub-modules, of which each sub-module may or may not have a firstauxiliary conduit 238, based on application requirements. Also, location, sequence, configuration, and inclusion of the first filter element, the DEF dosing unit, the first mixing element, the first catalytic reduction unit, and/or the AOC unit within the first sub-module 226, the second sub-module 228, and/or the firstauxiliary conduit 238 may vary based on application requirements. - The
system 202 also includes asecond module 240 fluidly coupled to thesecond inlet conduit 210. Thesecond module 240 includes a configuration similar to a configuration of thefirst module 224. Accordingly, thesecond module 240 includes a third sub-module 242 and afourth sub-module 244. The third sub-module 242 is fluidly coupled to thesecond portion 218 of thesecond inlet conduit 210. Accordingly, the third sub-module 242 is adapted to receive thesecond stream 222 therein from thesecond inlet conduit 210. - Each of the third sub-module 242 and the fourth sub-module 244 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis O-O', P-P' thereof respectively. In other embodiments, each of the third sub-module 242 and the fourth sub-module 244 may include any other configuration including but not limited to, rectangular, and triangular, among others, based on application requirements. Accordingly, each of the third sub-module 242 and the fourth sub-module 244 includes a
first end second end first end second end - Each of the third sub-module 242 and the fourth sub-module 244 is adapted to house one or more components of the
system 202. For example, in the illustrated embodiment, the third sub-module 242 includes a second filter element (not shown). The second filter element is adapted to filter particulate matter from thesecond stream 222. The second filter element may be any filter element known in the art including but not limited to, the Diesel Particulate Filter (DPF), and the partial flow filter, among others. Additionally, or optionally, the third sub-module 242 may also include other components not shown herein, based on application requirements. - Also, the fourth sub-module 244 includes a second catalytic reduction unit (not shown). The second catalytic reduction unit is adapted to reduce Nitrogen Oxides (NOx) present in the
second stream 222. The second catalytic reduction unit may be any catalytic converter known in the art, such as the Selective Catalytic Reduction (SCR) unit. Additionally, or optionally, the fourth sub-module 244 may also include other components, such as the Ammonia Oxidation Catalyst (AOC) unit, based on application requirements. - The
second module 240 further includes a secondauxiliary conduit 254. The secondauxiliary conduit 254 is fluidly coupled to the third sub-module 242 and thefourth sub-module 244. More specifically, the secondauxiliary conduit 254 is fluidly coupled to thesecond end 250 of the third sub-module 242 and thefirst end 248 of thefourth sub-module 244. Accordingly, the secondauxiliary conduit 254 is adapted to receive thesecond stream 222 therein from the third sub-module 242, and further allow flow of thesecond stream 222 into thefourth sub-module 244. - The second
auxiliary conduit 254 includes a second dosing unit (not shown) and a second mixing element (not shown) therein. The second dosing unit is adapted to inject the reductant fluid in thesecond stream 222. The second dosing unit may be any dosing unit known in the art, such as the Diesel Exhaust Fluid (DEF) dosing unit. The second mixing element may be any mixing unit known in the art including but not limited to, the perforated type mixing unit, the flap type mixing unit, the turbulence flow type mixing unit, the spiral flow type mixing unit, and/or a combination thereof, among others. The second mixing element is adapted to improve a mixing of the reductant fluid and thesecond stream 222 within thesecond module 240. In other embodiments, the secondauxiliary conduit 254 may include any other component/s of thesystem 202, based on application requirements. - It should be noted that the third sub-module 242, the fourth sub-module 244, and the second
auxiliary conduit 254 described herein is merely exemplary. In another embodiment, thesecond module 240 may include a single sub-module without the secondauxiliary conduit 254. In yet another embodiment, thesecond module 240 may include multiple sub-modules, of which each sub-module may or may not have a secondauxiliary conduit 254, based on application requirements. Also, location, sequence, configuration, and inclusion of the second filter element, the DEF dosing unit, the second mixing element, the second catalytic reduction unit, and/or the AOC unit within the third sub-module 242, the fourth sub-module 244, and/or the secondauxiliary conduit 254 may vary based on application requirements. - The
system 202 includes afirst outlet conduit 256 and asecond outlet conduit 258. In the illustrated embodiment, each of thefirst outlet conduit 256 and thesecond outlet conduit 258 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis Q-Q', R-R' thereof respectively. In other embodiments, each of thefirst outlet conduit 256 and thesecond outlet conduit 258 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements. - Also, each of the
first outlet conduit 256 and thesecond outlet conduit 258 includes afirst portion second portion first portion 260 of thefirst outlet conduit 256 is inclined with respect to thesecond portion 264 thereof defining an angle "P3" therebetween. Thefirst portion 262 of thesecond outlet conduit 258 is inclined with respect to thesecond portion 266 thereof defining an angle "P4" therebetween. In the illustrated embodiment, the angle "P3" is equal to the angle "P4". In other embodiments, the angle "P3" may vary with respect to the angle "P4", based on application requirements. - The
first outlet conduit 256 is fluidly coupled to thefirst module 224. More specifically, in the illustrated embodiment, thesecond portion 264 of thefirst outlet conduit 256 is fluidly coupled to thesecond sub-module 228 of thefirst module 224. Accordingly, thefirst outlet conduit 256 is adapted to receive thefirst stream 220 therein from thesecond sub-module 228. Also, thesecond outlet conduit 258 is fluidly coupled to thesecond module 240. More specifically, in the illustrated embodiment, thesecond portion 266 of thesecond outlet conduit 258 is fluidly coupled to thefourth sub-module 244 of thesecond module 240. Accordingly, thesecond outlet conduit 258 is adapted to receive thesecond stream 222 therein from thefourth sub-module 244. - The
system 202 also includes amain outlet conduit 268. In the illustrated embodiment, themain outlet conduit 268 includes a hollow, elongated, and cylindrical configuration defining a longitudinal axis S-S' thereof. In other embodiments, themain outlet conduit 268 may include any other configuration including but not limited to, triangular, elliptical, and rectangular, among others, based on application requirements. Themain outlet conduit 268 is fluidly coupled to each of thefirst outlet conduit 256 and thesecond outlet conduit 258. - Accordingly, the
main outlet conduit 268 is adapted to receive thefirst stream 220 and thesecond stream 222 therein from thefirst outlet conduit 256 and thesecond outlet conduit 258 respectively. Also, themain outlet conduit 268 is adapted to merge thefirst stream 220 and thesecond stream 222 therein, as shown by anarrow 270. Themain outlet conduit 268 may be further fluidly coupled to a downstream component (not shown) including but not limited to, a muffler, a silencer, a funnel, and a flare, among others, based on application requirements. - In the illustrated embodiment, each of the
first outlet conduit 256 and thesecond outlet conduit 258 is inclined with respect to themain outlet conduit 268. More specifically, thefirst portion 260 of thefirst outlet conduit 256 is coupled to themain outlet conduit 268 defining an angle "A3" with respect to the longitudinal axis S-S' of themain outlet conduit 268. Also, thefirst portion 262 of thesecond outlet conduit 258 is coupled to themain outlet conduit 268 defining an angle "A4" with respect to the longitudinal axis S-S' of themain outlet conduit 268. In the illustrated embodiment, the angle "A3" is equal to the angle "A4". In other embodiments, the angle "A3" may vary with respect to the angle "A4", based on application requirements. - In the illustrated embodiment, a cross-sectional area of the
first outlet conduit 256 is equal to a cross-sectional area of thesecond outlet conduit 258. Accordingly, the volume of thefirst stream 220 flowing through thefirst outlet conduit 256 is equal to the volume of thesecond stream 222 flowing through thesecond outlet conduit 258. In other embodiments, the cross-sectional area of thefirst outlet conduit 256 may be different with respect to the cross-sectional area of thesecond outlet conduit 258. Accordingly, the volume of thefirst stream 220 may vary with respect to the volume of thesecond stream 222 including but not limited to, 40:60, 60:40, 30:70, and 70:30, among others, in thefirst outlet conduit 256 and thesecond outlet conduit 258 respectively, based on application requirements. - The
first module 224 including the first sub-module 226 and the second sub-module 228, and thesecond module 240 including the third sub-module 242, and the fourth sub-module 244 may be oriented in any configuration with respect to one another, based on application requirements. For example, referring toFIGS. 2 ,3 , and4 , each of the first sub-module 226, the second sub-module 228, the third sub-module 242, and the fourth sub-module 244 is disposed parallel to and spaced apart with respect to one another in a single horizontal plane. - In another embodiment, referring to
FIGS. 5 and6 , thefirst module 224 is disposed parallel to and spaced apart with respect to thesecond module 240 in separate vertical planes respectively. Also, each of the first sub-module 226 and the second sub-module 228 is disposed parallel to and spaced apart with respect to one another in a single vertical plane in a stacked configuration. Similarly, each of the third sub-module 242 and the fourth sub-module 244 is disposed parallel to and spaced apart with respect to one another in a single vertical plane in the stacked configuration. - The
first inlet conduit 208, thesecond inlet conduit 210, thefirst outlet conduit 256, and thesecond outlet conduit 258 may be coupled to thefirst module 224 and thesecond module 240 respectively in any orientation, based on application requirements. For example, referring toFIGS. 2 and3 , thesecond portion 216 of thefirst inlet conduit 208 is oriented parallel to the longitudinal axis M-M' of thefirst sub-module 226. Also, thesecond portion 216 of thefirst inlet conduit 208 is coupled to thefirst end 230 of the first sub-module 226 along a lateral axis T-T' of thefirst sub-module 226. Thesecond portion 218 of thesecond inlet conduit 210 is oriented parallel to the longitudinal axis O-O' of thethird sub-module 242. Also, thesecond portion 218 of thesecond inlet conduit 210 is coupled to thefirst end 246 of the third sub-module 242 along a lateral axis U-U' of thethird sub-module 242. - Further, the
second portion 264 of thefirst outlet conduit 256 is oriented parallel to the longitudinal axis N-N' of thesecond sub-module 228. Also, thesecond portion 264 of thefirst outlet conduit 256 is coupled to thesecond end 236 of the second sub-module 228 along a lateral axis V-V' of thesecond sub-module 228. Thesecond portion 266 of thesecond outlet conduit 258 is oriented parallel to the longitudinal axis P-P' of thefourth sub-module 244. Also, thesecond portion 266 ofsecond outlet conduit 258 is coupled to thesecond end 252 of the fourth sub-module 244 along a lateral axis W-W' of thefourth sub-module 244. - In other embodiments, referring to
FIGS. 4 ,5 and6 , thesecond portion 216 of thefirst inlet conduit 208 is coupled to thefirst end 230 of the first sub-module 226 at an angle "B1" with respect to the lateral axis T-T' of thefirst sub-module 226. Also, thesecond portion 218 of thesecond inlet conduit 210 is coupled to thefirst end 246 of the third sub-module 242 inclined at an angle "B2" with respect to the lateral axis U-U' of thethird sub-module 242. - Further, the
second portion 264 offirst outlet conduit 256 is coupled to thesecond end 236 of the second sub-module 228 inclined at an angle "B3" with respect to the lateral axis V-V' of thesecond sub-module 228. Thesecond portion 266 ofsecond outlet conduit 258 is coupled to thesecond end 252 of the fourth sub-module 244 inclined at an angle "B4" with respect to the lateral axis W-W' of thefourth sub-module 244. In the illustrated embodiment, each of the angles "B1", "B2", "B3", and "B4" is equal to one another. In other embodiments, one or more of the angles "B1", "B2", "B3", and "B4" may vary with respect to one another, based on application requirements. - It should be noted that the orientation, arrangement, location, configuration of the
first module 224, the first sub-module 226, the second sub-module 228, thesecond module 240, the third sub-module 242, the fourth sub-module 244, thefirst inlet conduit 208, thesecond inlet conduit 210, thefirst outlet conduit 256, and/or thesecond outlet conduit 258 described herein is merely exemplary and may vary based on application requirements. For example, one or more sub-modules of thesystem 202 may be arranged in a single horizontal or vertical plane, and a remaining of the sub-modules may be arranged in a separate horizontal or vertical plane, based on application requirements. Also, one or more conduits of thesystem 202 may be oriented along any axis of the respective sub-module, and a remaining of the conduits may be oriented at any other angle with respect to any axis of the respective sub-module, based on application requirements - Further, referring to
FIGS. 3 ,4 ,5 , and6 , thesystem 202 may include one or moremounting elements 272 including but not limited to, one or more mounting brackets, and fasteners, among others. The mountingelements 272 are adapted to mount thesystem 202 on ground or with respect to one another. For example, as shown inFIGS. 3 and4 , the mountingelements 272 are arranged horizontally to receive thefirst module 224 and thesecond module 240 thereon in order to mount thesystem 202 on the ground. Also, as shown inFIGS. 5 and6 , the mountingelements 272 are arranged vertically to receive thefirst module 224 and thesecond module 240 thereon in order to mount thesystem 202 in the stacked configuration. - The present disclosure relates to a
method 700 of working of theaftertreatment system 202. Referring toFIG. 7 , a flowchart of themethod 700 is illustrated. Atstep 702, themain inlet conduit 204 receives the high-volume exhaust flow therein, as shown by thearrow 206. The exhaust flow is received through themain inlet conduit 204 from theexhaust manifold 108 of theengine 102. Atstep 704, the exhaust flow is split downstream of themain inlet conduit 204. More specifically, the exhaust flow is split in thefirst stream 220 using thefirst inlet conduit 208. Also, the exhaust flow is split in thesecond stream 222 using thesecond inlet conduit 210. In other embodiments, the exhaust flow may be split in multiple streams, based on application requirements. The splitting of the high-volume exhaust flow provides to limit the backpressure within thesystem 202 and/or theengine 102. - At
step 706, thefirst stream 220 is received through thefirst module 224 from thefirst inlet conduit 208. More specifically, thefirst stream 220 is received through the first sub-module 226, the firstauxiliary conduit 238, and thesecond sub-module 228. As such, thefirst stream 220 may be received through the first filter element, the DEF dosing unit, the first mixing element, the first catalytic reduction unit, and/or the AOC unit. The first mixing element provides to improve the mixing of thefirst stream 220 within thefirst module 224. - At
step 708, thesecond stream 222 is received through thesecond module 240 from thesecond inlet conduit 210. More specifically, thesecond stream 222 is received through the third sub-module 242, the secondauxiliary conduit 254, and thefourth sub-module 244. As such, thesecond stream 222 may be received through the second filter element, the DEF dosing unit, the second mixing element, the second catalytic reduction unit, and/or the AOC unit. The second mixing element provides to improve the mixing of thesecond stream 222 within thesecond module 240. It should be noted that thestep 706 and thestep 708 are performed simultaneously. - At
step 710, thefirst stream 220 is flown out from thefirst module 224 through thefirst outlet conduit 256. Atstep 712, thesecond stream 222 is flown from thesecond module 240 through thesecond outlet conduit 258. Additionally, or optionally, thefirst stream 220 and thesecond stream 222 is merged downstream of thefirst module 224 and thesecond module 240 respectively. In such a situation, thefirst stream 220 and thesecond stream 222 is merged in themain outlet conduit 268 downstream of thefirst module 224 and thesecond module 240 respectively, as shown by thearrow 270. It should be noted that thestep 710 and thestep 712 are performed simultaneously. - The
system 202 provides a simple, effective, and cost-efficient method for limiting the backpressure and for improving the mixing of the exhaust flow within thesystem 202 during the high-volume exhaust flow. As such, thesystem 202 employs a relatively small size of thefirst module 224 and thesecond module 240 with respect to a single, large aftertreatment module. Accordingly, development and manufacturing cost for thesystem 202 may be substantially lower compared to development and manufacturing cost for the single, large aftertreatment module. - The
system 202 also provides a modular design based on application or user requirements. More specifically, multiple modules/sub-modules similar to thefirst module 224 and thesecond module 240 may be added to thesystem 202 in order to increase a capacity thereof, and/or to limiting the backpressure within thesystem 202 and/or on theengine 102. Also, thefirst module 224 and thesecond module 240 may have a configuration similar to an existing aftertreatment module, in turn, reducing an overall cost of thesystem 202. Thesystem 202 may be retrofitted in any high-volume exhaust flow system with little or no modification to the existing system. - While aspects of the present disclosure have been particularly shown and described with reference to the embodiments above, it will be understood by those skilled in the art that various additional embodiments may be contemplated by the modification of the disclosed machines, systems and methods without departing from the spirit and scope of the disclosure. Such embodiments should be understood to fall within the scope of the present disclosure as determined based upon the claims and any equivalents thereof.
Claims (10)
- An aftertreatment system (202) for treating a high-volume exhaust flow, the aftertreatment system (202) comprising:a first module (224);a second module (240) having a configuration similar to a configuration of the first module (224);a main inlet conduit (204) adapted to receive the exhaust flow;a first inlet conduit (208) fluidly coupled to the main inlet conduit (204) and the first module (224);a second inlet conduit (210) fluidly coupled to the main inlet conduit (204) and the second module (240);a first outlet conduit (256) fluidly coupled to the first module (224); anda second outlet conduit (258) fluidly coupled to the second module (240);wherein each of the first inlet conduit (208) and the second inlet conduit (210) is adapted to split the exhaust flow downstream of the main inlet conduit (204) into a first stream (220) and a second stream (222) flowing therethrough respectively, and wherein splitting of the exhaust flow is adapted to limit a backpressure within the aftertreatment system (202).
- The aftertreatment system (202) of claim 1, wherein a cross sectional area of the first inlet conduit (208) is equal in size to a cross sectional area of the second inlet conduit (210).
- The aftertreatment system (202) of claim 1, wherein a cross sectional area of the first inlet conduit (208) is different in size than a cross sectional area of the second inlet conduit (210).
- The aftertreatment system (202) of claim 1, wherein each of the first module (224) and the second module (240) includes at least one of a diesel particulate filter (226), a diesel exhaust fluid dosing unit (238), and a selective catalytic reduction unit (228).
- The aftertreatment system (202) of claim 1 further includes a main outlet conduit (268) fluidly coupled to each of the first outlet conduit (256) and the second outlet conduit (258).
- The aftertreatment system (202) of claim 1, wherein at least one the first inlet conduit (208), the first outlet conduit (256), the second inlet conduit (210), and the second outlet conduit (258) is disposed along a lateral axis of the first module (224) and the second module (240) respectively.
- The aftertreatment system (202) of claim 1, wherein at least one the first inlet conduit (208), the first outlet conduit (256), the second inlet conduit (210), and the second outlet conduit (258) is disposed at an angle with respect to a lateral axis of the first module (224) and the second module (240) respectively.
- The aftertreatment system (202) of claim 1, wherein the first module (224) includes:a first sub-module (226) fluidly coupled to the first inlet conduit (208);a second sub-module (228) fluidly coupled to the first outlet conduit (208); anda first auxiliary conduit (238) fluidly coupled between the first sub-module (226) and the second sub-module (228).
- The aftertreatment system (202) of claim 8, wherein the second module (240) includes:a third sub-module (242) fluidly coupled to the second inlet conduit (210);a fourth sub-module (244) fluidly coupled to the second outlet conduit (258); anda second auxiliary conduit (254) fluidly coupled between the third sub-module (242) and the fourth sub-module (244).
- The aftertreatment system (202) of claim 9, wherein at least one of the first sub-module (226) and the second sub-module (228), and the third sub-module (242) and the fourth sub-module (244) is disposed in a stacked configuration.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/688,990 US20190063298A1 (en) | 2017-08-29 | 2017-08-29 | Aftertreatment system |
Publications (1)
Publication Number | Publication Date |
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EP3450715A1 true EP3450715A1 (en) | 2019-03-06 |
Family
ID=63207567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18188116.0A Withdrawn EP3450715A1 (en) | 2017-08-29 | 2018-08-08 | Aftertreatment system |
Country Status (3)
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US (1) | US20190063298A1 (en) |
EP (1) | EP3450715A1 (en) |
CN (1) | CN109424412A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190107021A1 (en) * | 2016-06-23 | 2019-04-11 | Yara Marine Technologies As | System and method for reducing the amount of sulfur oxides in exhaust gas |
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DE4114745A1 (en) | 1991-05-06 | 1992-11-12 | Emitec Emissionstechnologie | Exhaust system for four-stroke combustion engine - has two pulsating exhaust gas flows supplied via a common exhaust manifold allowing exhaust gases to leave by a common pipe |
DE102008042767A1 (en) * | 2008-10-13 | 2010-04-15 | Ford Global Technologies, LLC, Dearborn | emission control system |
JP2012067697A (en) * | 2010-09-24 | 2012-04-05 | Mitsubishi Fuso Truck & Bus Corp | Exhaust emission control device |
WO2014192183A1 (en) * | 2013-05-28 | 2014-12-04 | 三菱ふそうトラック・バス株式会社 | Exhaust gas purification device |
US20150090467A1 (en) * | 2013-09-30 | 2015-04-02 | Komatsu Ltd. | Bulldozer |
EP3020872A2 (en) * | 2014-11-17 | 2016-05-18 | Kobelco Construction Machinery Co., Ltd. | Construction machine |
EP3179065A1 (en) * | 2015-12-08 | 2017-06-14 | Jumbomaw Technology Co., Ltd. | Catalytic converter |
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US8230678B2 (en) * | 2007-06-21 | 2012-07-31 | Daimler Trucks North America Llc | Treatment of diesel engine exhaust |
US9564072B2 (en) * | 2013-07-03 | 2017-02-07 | Rite-Hite Holding Corporation | Methods and apparatus to generate loading dock visual indicators |
-
2017
- 2017-08-29 US US15/688,990 patent/US20190063298A1/en not_active Abandoned
-
2018
- 2018-08-08 EP EP18188116.0A patent/EP3450715A1/en not_active Withdrawn
- 2018-08-24 CN CN201810972034.5A patent/CN109424412A/en active Pending
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DE4114745A1 (en) | 1991-05-06 | 1992-11-12 | Emitec Emissionstechnologie | Exhaust system for four-stroke combustion engine - has two pulsating exhaust gas flows supplied via a common exhaust manifold allowing exhaust gases to leave by a common pipe |
DE102008042767A1 (en) * | 2008-10-13 | 2010-04-15 | Ford Global Technologies, LLC, Dearborn | emission control system |
JP2012067697A (en) * | 2010-09-24 | 2012-04-05 | Mitsubishi Fuso Truck & Bus Corp | Exhaust emission control device |
WO2014192183A1 (en) * | 2013-05-28 | 2014-12-04 | 三菱ふそうトラック・バス株式会社 | Exhaust gas purification device |
US20150090467A1 (en) * | 2013-09-30 | 2015-04-02 | Komatsu Ltd. | Bulldozer |
EP3020872A2 (en) * | 2014-11-17 | 2016-05-18 | Kobelco Construction Machinery Co., Ltd. | Construction machine |
EP3179065A1 (en) * | 2015-12-08 | 2017-06-14 | Jumbomaw Technology Co., Ltd. | Catalytic converter |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20190107021A1 (en) * | 2016-06-23 | 2019-04-11 | Yara Marine Technologies As | System and method for reducing the amount of sulfur oxides in exhaust gas |
US10563553B2 (en) * | 2016-06-23 | 2020-02-18 | Yara Marine Technologies As | System and method for reducing the amount of sulfur oxides in exhaust gas |
Also Published As
Publication number | Publication date |
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US20190063298A1 (en) | 2019-02-28 |
CN109424412A (en) | 2019-03-05 |
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