CN104364488B - 排气混合器、排放物清洁模块及方法 - Google Patents
排气混合器、排放物清洁模块及方法 Download PDFInfo
- Publication number
- CN104364488B CN104364488B CN201380031914.8A CN201380031914A CN104364488B CN 104364488 B CN104364488 B CN 104364488B CN 201380031914 A CN201380031914 A CN 201380031914A CN 104364488 B CN104364488 B CN 104364488B
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- Prior art keywords
- hybrid blade
- elongated hybrid
- elongated
- exhaust
- mixing duct
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0876—Insulating elements, e.g. for sound insulation for mounting around heat sources, e.g. exhaust pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
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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
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- 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
- F01N13/14—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 thermal insulation
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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
- F01N13/14—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 thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
- F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
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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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
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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
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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
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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
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0233—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
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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
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- 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
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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
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4313—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor comprising a plurality of stacked ducts having their axes parallel to the tube axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
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- B01F25/431971—Mounted on the wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
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- F01N2490/02—Two or more expansion chambers in series connected by means of tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49345—Catalytic device making
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Abstract
提供一种可被用来将例如尿素的添加剂混合到排出流体流内的排气混合器。该排气混合器有助于通过增加添加剂混合效率来减少或阻止固体添加剂沉积物堆积。该排气混合器(100)可至少部分位于混合管道内并且包括通过支撑件(130)以间隔结构固定的多个细长混合叶片(111‑115)。每个混合叶片可具有沿着混合管道的纵向轴线延伸的纵向轴线,其中,喷射器模块位于混合管道进口的上游。
Description
技术领域
本发明涉及一种用来清洁在燃烧发动机操作期间排放的排出流体的设备。特别是,涉及一种排气混合器、包括这种排气混合器的排放物清洁模块和将添加剂混合到排出流体内的方法。
背景技术
发动机(例如烧汽油、柴油或者生物燃料的IC发动机)输出各式各样的必须进行处理以满足现在和将来排放法规的有害物质。最常见地,这些物质包括碳氢化合物(HC)、一氧化碳(CO)、一氮氧化物(NOx)和例如碳(C)、粉尘成分的颗粒物质。这些物质中的一些可通过精细控制发动机的工作条件而减少,但是通常来说必须在发动机下游提供一设备,例如排放物清洁模块,来处理夹带在排出流体内的这些物质中的至少一部分。用来减少和/或清除排放物中各成分的各种设备是已知的。例如,已知的是,提供一种氧化装置,例如柴油氧化催化器(diesel oxidation catalyst),来减少或者清除碳氢化合物(HC)和/或一氧化碳(CO)。氧化装置通常包括催化器以将这些物质转换为明显没有危害的二氧化碳和水。作为另一个例子,排放物清洁模块可包括颗粒过滤器以限制存在于排放气体中的颗粒输出到大气中。
通过使用排放物清洁模块,发动机排放物可被清洁,意味着否则会释放到大气中的一部分有害物质被转换为二氧化碳(CO2)、氮气(N2)和水(H2O)。
另外,已知的是,通过与例如夹带在排放气体中的氨(NH3)的化学物品催化反应转换为双原子氮(N2)和水(H2O)来减少或者清除柴油燃烧排放物中的一氮氧化物(NOX)。
通常氨不存在于排出流体内因此必须在催化器上游将其引入,典型情况下通过将在足够高的温度下分解为氨的尿素溶液喷射到排放气体中。
通过这些方法,发动机流体可被清洁,意味着否则会释放到大气中的一部分有害物质被转换为二氧化碳(CO2)、氮气(N2)和水(H2O)。
可包括排放物清洁模块的排气系统因而可包括用于将例如尿素的流体喷射到排出流体流中的喷射器模块。同时已知的是包括排气混合器以帮助混合喷射的尿素和排出流体流。例如,WO2011/062960描述了一种配置为用于发动机排放系统的排气混合器,其中,该排气混合器包括在中心轴线周围成等距阵列设置的多个叶片。该排气混合器用于在排气流中形成湍流,目的在于改进尿素和排出流体流的混合。
在这个背景下,提供一种包括改进的排气混合器装置的排放物清洁模块、包括排气混合器的改进发动机排气系统和将添加剂混入排出流体的改进方法。
发明内容
本发明提供一种排气混合器,包括:
多个细长混合叶片;
支撑件,其被配置为保持多个细长混合叶片处于彼此间隔的关系;
该支撑件能够位于排放物清洁模块或排气管道内或者形成排放物清洁模块或排气管道的一部分。
本发明还提供一种包括正如所述的排气混合器的排放物清洁模块。
本发明还提供一种将添加剂混入排出流体的方法,包括如下步骤:
使排出流体流沿着具有进口、出口和纵向轴线的混合管道流动;
将添加剂喷雾从喷射器模块喷射到排出流体中;和
使排出流体流和添加剂喷雾经过至少部分位于混合管道内的排气混合器;
其中,排气混合器包括间隔布置的多个细长混合叶片,用于湍流混合添加剂喷雾和排出流体;
每个细长混合叶片具有沿混合管道的纵向轴线延伸的纵向轴线;
其中,通过喷射器模块将添加剂喷雾喷射到混合管道的进口中。
附图说明
现在,仅仅通过举例方式,根据附图描述本发明的实施例,其中:
图1给出根据本发明的排放物清洁模块;
图2给出图1中的排放物清洁模块的支撑框架;
图3给出图1中的排放物清洁模块的部分横截面;
图4给出包含排气混合器第一实施例的图1中的排放物清洁模块的混合管道的横截面;
图5给出图4中的混合管道的透视横截面;
图6给出图4中的混合管道的一部分的横截面;
图7给出图4中的排气混合器的透视横截面;
图8给出图7中的排气混合器的透视图;
图9给出根据本发明的排气混合器第二实施例的透视横截面;和
图10给出根据本发明的排气混合器第三实施例的透视横截面。
具体实施方式
本发明的排气混合器100的第一实施例图示于图7和8中。该排气混合器100可形成发动机排气系统的组成部分。该排气混合器100可形成排放物清洁模块的组成部分,该排放物清洁模块本身可形成发动机排气系统的一部分。在接下来的描述中,仅仅通过举例方式,排气混合器100将被描述为形成排放物清洁模块的组成部分。
排放物清洁模块1的实施例的总体结构图示于图1中,并且可包括第一管道10和第二管道20。还可存在第三管道30和支撑结构40。如图2所示,支撑结构40可包括第一支撑构件50和第二支撑构件60。
每个支撑构件50、60可大体是平面的并且由刚性材料(例如金属)制成。
第一、第二和第三管道10、20、30可以是细长的,具有伸长轴线,并且可具有沿着伸长轴线基本上固定的横截面。第一、第二和第三管道10、20、30为大体圆柱形。
第一管道10可包括为管道提供进口的第一端11和为管道提供出口的第二端12。第二管道20可包括为管道提供出口的第一端21和为管道提供进口的第二端22。第三管道30可包括为管道提供进口的第一端31和为管道提供出口的第二端。
第一、第二和第三管道10、20、30可在支撑构件50、60之间延伸。第一、第二和第三管道10、20、30可大体基本上平行。第一、第二和第三管道10、20、30的第一端11、21、31可分别容纳在第一支撑构件50的第一、第二和第三开口51、52、53内并与其形状相符。第一、第二和第三管道10、20、30的第二端12、22可分别容纳在第二支撑构件60的第一、第二和第三开口61、62、63内并与其形状相符。通过这种设置可限制管道的横向运动。
如图2所示,每个开口51、52、53、61、62、63可包括围绕开口圆周延伸的凸缘51a、52a、53a、61a、62a、63a。每个支撑构件50、60可进一步包括向内弯转的唇部59、69,唇部至少部分围绕支撑构件50,60的外围延伸。
第一、第二和第三管道10、20、30可全部具有基本类似的长度。第一管道10可具有第一直径,第二管道20可具有第二直径以及第三管道30可具有第三直径。第二直径可小于第一和第三直径。
第一、第二和第三管道10、20、30的第一和第二端11、21、31、12、22可焊接、粘附或者以其他方式固定到限定或者环绕开口的那部分支撑构件50,60上。可替换地,第一、第二和第三管道10、20、30的第一和第二端11、21、31、12、22可邻接支撑构件50、60的内侧以便覆在支撑构件50、60的相应开口上。
第一、第二和第三管道10、20、30以及第一和第二支撑构件50、60可以以限制这些部件相对平移运动的方式相互连接。作为替代或者另外地,第一、第二和第三管道10、20、30以及第一和第二支撑构件50、60可以以限制一个部件相对于另一个部件转动的方式相互连接。
第一管道10可经由第一端部联接器15流体联接到第二管道20上,第一端部联接器可流体连接第一管道10的出口和第二管道20的进口。第二管道20可经由第二端部联接器25联接到第三管道30上,用来流体连接第二管道20的出口和第三管道30的进口。第一和第二端部联接器中的每一个可结合其相应的支撑构件限定流体流动路径,排出流体(例如废气)可通过该流体流动路径在相邻管道之间经过。
在排放物清洁模块的流体流动路径中,可设置柴油氧化催化器(DOC)模块71、柴油颗粒过滤器(DPF)模块70、选择性催化还原(SCR)模块和氨氧化催化器(AMOX)模块。该流体流动路径还配有混合管道75和喷射器模块16,它们的功能将在下文中进一步描述。
DOC模块71可位于朝向第一端11的第一管道10的第一部分内,形成第一管道10的进口。DPF模块70可位于朝向第二端12的第一管道10的第二部分内,形成第一管道10的出口。第一端部联接器15可提供从第一管道10的第二端12到第二管道20的第二端22的流体流动路径。
SCR模块可位于朝向第三管道30的第一端31的第三管道30的第一部分内。SCR模块可包括确定为使在混合管道内混合并通过扩散器输出的两种流体之间产生催化反应的催化表面。AMOX模块可位于朝向第三管道30的第二端的第三管道30的第二部分内。AMOX模块可包括催化器,该催化器可催化SCR模块输出的一个或多个产物的反应。
混合管道75可位于第二管道20内或由第二管道20形成。如图3和4所示,混合管道75包括进口90、出口91并且具有纵向轴线120。混合管道75可包括外部主体80和位于该外部主体80内的内部主体81。外部主体80可形成第二管道20的外层。气隙88可设在内部主体81和外部主体80之间。
外部主体80可以是细长的并在第一支撑构件50和第二支撑构件60之间延伸。外部主体80可以为圆柱形并且可具有不变的直径,除了在可具有较小直径的端部之外。外部主体80的第一端82可固定保持在第一支撑构件50上。这种固定可通过第一端82和凸缘52a之间的焊接。可连接到凸缘52a的内面或外面。外部主体80的第二端83可固定保持在第二支撑构件60上。这种固定可通过第二端83和凸缘62a之间的焊接。可连接到凸缘62a的内面或外面。
内部主体81可以是细长的。内部主体81可以为圆柱形并且可具有不变的直径。可替换地,如图所示,它可具有锥形部分87,致使一端具有比另一端更小的直径。内部主体81的第一端85可滑动保持在外部主体80内。内部主体81的第一端85可滑动保持接触外部主体80的第一端82。内部主体81的第一端85可在外部主体80的第一端82内形成滑动配合。内部主体81的第二端86可相对于外部主体80固定保持在第二支撑构件60处或其附近。这种固定可通过第二端86和外部主体80之间的焊接。可替换地,这种固定可通过第二端86和第二支撑构件60之间的焊接。单个焊接(single weld)可被用来连接内部主体81的第二端86、外部主体80的第二端83和第二支撑构件60。
因此,在第二端,可防止内部主体81、外部主体80和第二支撑构件60相对于彼此轴向移动。然而,在第一端,内部主体81可自由地相对于外部主体80轴向移动。
如图4所示,喷射器模块16位于混合管道75的进口90的上游,具有被配置为将添加剂喷射到该混合管道75的进口90内的喷射器模块16的出口16a。该喷射器模块16可安装在第一端部联接器15内。如图4所示,喷射器模块16的出口16a可位于混合管道75的纵向轴线120的延长部分120a上或靠近该延长部分。
该喷射器模块16的出口16a可被配置为将添加剂(例如尿素)喷射为喷雾,具有沿着或者平行于混合管道75的纵向轴线120对中的喷雾形状。
根据本发明,排气混合器100可至少部分处于位于喷射器模块16下游的混合管道75内。
如图6所示,排气混合器100的第一实施例包括多个细长的混合叶片111-115,这些叶片以堆叠间隔关系设置因此在相邻的细长混合叶片之间没有直接接触。细长的混合叶片111-115可安装在排气混合器支撑件130或者其他支撑装置上,更清楚地如图8中所示,其被配置为使多个细长混合叶片保持间隔关系。排气混合器支撑件130可以成管形构件形式,其可以为圆柱形和/或可成形为与混合管道75的形状相符。这种安装可通过将细长混合叶片111-115的侧边118置于形成于排气混合器支撑件130壁上的槽119内来实现。例如焊接的固定方式可用在细长混合叶片111-115的侧边和排气混合器支撑件130之间以将一个保持到另一个上。排气混合器支撑件130可安装在位于或朝向其第二端86的混合管道75的内部主体81内或者形成其一部分。每个细长混合叶片111-115的纵向轴线可大体上平行于排出流体的预期流动方向延伸,在使用中排出流体流经排气混合器100。
代替如图6所示的圆柱形排气混合器支撑件130,可以使用备选的支撑装置。例如,可以使用由多个环构件形成的支撑框架,多个环构件可沿细长混合叶片111-115的纵向轴线以等距间隔焊接到细长混合叶片111-115上。然后环构件可焊接到混合管道75的内部主体81上。
如图7所示,多个细长混合叶片111-115可包括五个细长混合叶片111-115。每个细长混合叶片111-115具有沿混合管道75的纵向轴线120延伸的纵向轴线。每个细长混合叶片111-115可包括朝着喷射器模块16面对上游的前缘111a-115a和面对下游的后缘111b-115b。在两者中间,每个细长混合叶片111-115可具有板状主体111c-115c形式,其中板状主体可沿混合管道75的纵向轴线120延伸。至少一些细长混合叶片111-115的板状主体111c-115c可包括中心部分116和位于中心部分116每一侧的翼部117,其中每个翼部117可相对于中心部分116以介于10°和20°之间的微小角度向上翻转。在一个实施例中,如图所示,角度为15°。
一个或多个细长混合叶片111-115可包括与其板状主体111c-115c成一定角度延伸的一个或多个翼片131、132。如图6所示,翼片131、132可位于排气混合器100的两个级中的一级内。翼片132可位于排气混合器100的预混合级135内,而翼片131可位于排气混合器100的混合级136内。预混合级135可比混合级136更靠近喷射器模块16设置。
除非在下文中另有说明,每个翼片131、132可相对于其相关的板状主体以介于30到60°之间的角度延伸。在一个实施例中,翼片131以45°延伸。在一个实施例中,翼片132以30°延伸。翼片131、132可在板状主体上方或下方延伸。
预混合级135的翼片132可以为上游方向翼片,即,它们可与板状主体成一定角度延伸以便大体朝着喷射器模块16的位置指向上游。与此相反,混合级136的翼片131可以为下游方向翼片,即,这些翼片可相对于板状主体延伸以便大体指向下游并远离喷射器模块16的位置。
如图7和8所示,下游方向翼片131可全部仅从细长混合叶片111-115的后缘111b-115b延伸。相反地,上游方向翼片132可位于板状主体111c-115c的中间部分内以致距前缘111a-115a和后缘111b-115b一定距离。
如图7中最清楚所示,细长混合叶片堆叠结构的第一细长混合叶片111和可以作为最后一个细长混合叶片的细长混合叶片堆叠结构的第五细长混合叶片115可比第二、第三和第四细长混合叶片112-114长。第一细长混合叶片111和第五细长混合叶片115可限定堆叠结构中最外侧一对细长混合叶片,该堆叠结构把可形成内部细长混合叶片的第二、第三和第四细长混合叶片112-114夹在中间。
第一细长混合叶片111可以是堆叠结构中最长的细长混合叶片。第五细长混合叶片115可以是堆叠结构中第二长的细长混合叶片。
第一细长混合叶片111可没有上游方向翼片132但包括可从后缘111b的中心部分116延伸的单个下游方向翼片131。下游方向翼片131可与板状主体111c成15°角以便指向纵向轴线120。
第二细长混合叶片112可邻近第一细长混合叶片111设置。第二细长混合叶片112可没有上游方向翼片132但包括三个下游方向翼片131。下游方向翼片131可与板状主体112c成45°角。下游方向翼片131中的一个可从后缘112b的中心部分116延伸以便背离第一细长混合叶片111指向。下游方向翼片131中的另两个可从后缘112b的翼部117延伸以便指向第一细长混合叶片111。
第三细长混合叶片113可邻近第二细长混合叶片112设置。第三细长混合叶片113可包括两个上游方向翼片132和三个下游方向翼片131。下游方向翼片131可与板状主体113c成45°角。下游方向翼片131中的一个可从后缘113b的中心部分116延伸以便背离第二细长混合叶片112指向。下游方向翼片131中的另两个可从后缘113b的翼部117延伸以便指向第二细长混合叶片112。两个上游方向翼片132可与板状主体113c成30°角以从板状主体113c的中心部分116延伸以便指向第二细长混合叶片112。
第四细长混合叶片114可邻近第三细长混合叶片113设置。第四细长混合叶片114可包括两个上游方向翼片132和三个下游方向翼片131。下游方向翼片131可与板状主体114c成45°角。下游方向翼片131中的一个可从后缘114b的中心部分116延伸以便背离第三细长混合叶片113指向。下游方向翼片131中的另两个可从后缘114b的翼部117延伸以便指向第三细长混合叶片113。两个上游方向翼片132可与板状主体114c成30°角以从板状主体114c的中心部分116延伸以便远离第三细长混合叶片113指向。
第五细长混合叶片115可邻近第四细长混合叶片114设置。第五细长混合叶片115可包括两个上游方向翼片132但没有下游方向翼片131。两个上游方向翼片132可与板状主体115c成45°角以从板状主体115c的中心部分116延伸以便背离第四细长混合叶片114指向。
如图4所示,在与混合管道75组装时,第一细长混合叶片111可延伸超过混合管道75的第二端83进入第二支撑构件60的第二开口62内。这可使第一细长混合叶片111的前缘111a相对靠近喷射器模块16设置,这种设置的好处将在下面进行论述。
第二端部联接器25可提供从第二管道的第一端21到第三管道30的第一端31的流体流动路径。
在使用中,流体(例如排出气体)可经由进口4供给到排放物清洁模块1,如图3所示。流体可进入第一管道10的第一部分中的DOC模块71。在于进口4接收之前,流体压力可通过背压阀和/或涡轮增压器废气门进行控制。
DOC模块71可包括一种或多种催化剂,诸如钯或铂。这些材料用作催化剂以使流体流中的碳氢化合物([HC])和一氧化碳(CO)氧化以便产生二氧化碳(CO2)和水(H2O)。催化剂可以以这种方式进行分配以便使催化剂材料的表面积最大,由此增加催化剂在催化反应中的效果。
流体可从DOC模块71流向DPF模块70,DPF模块包括用来阻止粉尘形式的碳(C)前行通过的特征。因此,流体中的碳粒子被收集在过滤器中。过滤器可通过已知的再生技术进行再生。这些技术可包括控制流体温度、流体压力以及流体中未燃烧燃料的比例中的一种或多种。本领域人员应当理解的是,本发明的排气混合器可设在排放物清洁模块中但没有DOC和/或DPF。
流体可从DOC模块71开始经过位于第一端部联接器15中的喷射器模块16。喷射器模块16可连接或附接到泵电子罐单元(PETU)。泵电子罐单元可包括罐,用于为要通过喷射器喷射的添加剂流体提供储器。这种添加剂流体可包括尿素或氨。
PETU可进一步包括被配置为控制通过喷射器要从罐喷出的添加剂流体的体积的控制器。控制器可具有输入,例如,可由SCR模块中的传感器导出的温度信息以及NOx数量信息。
流体可经过喷射器模块16,此处它可接收喷射的添加剂流体,且排出流体和添加剂流体的合成混合物然后经由进口90进入混合管道75。如图4所示,喷射的添加剂流体可以以具有大体锥形喷雾形状121的喷雾形式进行喷射。
排出流体和添加剂流体的混合物经过排气混合器100。流体流可位于细长混合叶片111-115上面和中间,这里翼片131、132可用来湍流混合添加剂流体和排出流体,这可有利地促使热能从排出流体传递至添加剂流体,促使尿素分解为氨。
第一细长混合叶片111可以是细长的并可朝向喷射器模块16向上游延伸,超过混合管道75的进口90以形成挡板140,如图4和6所示,用来阻止或减少由喷射器模块16的出口16a喷出的添加剂对混合管道75的壁的冲击。第五细长混合叶片115可朝向喷射器模块16向上游延伸以形成挡板141。
流入混合管道75内的流体可以是热的,使第二管道20的内部主体81热膨胀。任何这样的膨胀可通过内部主体81的第一端部85和外部主体80的第一端82之间的相对滑动来适应。相对运动可被限制为仅仅或主要是相对轴向运动。在第二管道20的第一端部21,内部主体81和外部主体80之间的重叠可以足够大以防止内部主体81的任何膨胀或收缩期间气隙88的打开(opening)。
然后流体可流经出口91和第二端部联接器25,经由第二端部联接器25进入位于第三管道30的第一部分内的SCR模块。SCR模块可包括一个或多个催化器,排出流体和尿素/氨的混合物可流过该催化器。当混合物经过催化器表面时,会发生将氨和NOx转化为双原子氮(N2)和水(H2O)的反应。
流体可从SCR模块流到位于第三管道30的第二部分内的AMOX模块。AMOX模块可包括氧化催化器,其可使存在于流出SCR模块的流体中的剩余氨发生反应产生氮气(N2)和水(H2O)。
流体可从AMOX模块流到位于第三管道30的第二端的排放物清洁模块出口。
图9显示出根据本发明的排气混合器100的第二实施例。现在将仅仅描述第一和第二实施例之间的差异。在所有其他方面,第二实施例可以如上所述的第一实施例相同的方式构造和作用。
图9中的排气混合器100可以在第一变形中修改,即从中心部分116延伸的第二细长混合叶片112的下游方向翼片131背离第一细长混合叶片111相对于板状主体112c成15°角。替代地,或者除了第一变形,在第二变形中,第三细长混合叶片113可在其预混级135内没有上游方向翼片132。可替换地,或者除了第一和/或第二变形,在第三变形中,第四细长混合叶片114可没有从后缘114b的翼部117延伸的上游方向翼片132。
图10显示出根据本发明的排气混合器100的第三实施例。现在将仅仅描述第二和第三实施例之间的差异。在所有其他方面,第三实施例可以如上所述的第一和第二实施例相同的方式构造和作用。
图10的排气混合器100可在第一变形中修改,即第四和/或第五细长混合叶片114、115可在其预混级135内没有上游方向翼片132。可替换地,或者除了第一变形,在第二变形中,第二和/或第三细长混合叶片112、113可以缩短以便比第四细长混合叶片114短。第二细长混合叶片112可比第三细长混合叶片113短。
工业实用性
本发明提供一种排气混合器、排放物清洁模块和将添加剂混合到排出流体内的方法,其可以提高将例如尿素的添加剂混合到例如废气的排出流体流的效率。
在将其注射到混合管道内时,尿素的不完全混合以及尿素充分分解为氨将导致固体尿素沉积物积聚在包括这里给出的任何排气混合器的混合管道的内表面上。还已经发现,喷射的添加剂喷雾在相对冷的混合管道壁上的冲击也会加速这种沉积物的积聚。这会导致需要对排放物清洁模块进行过于频繁地拆卸和维护。
本发明的排气混合器可导致喷射的添加剂在排出流体流中的混合效率增加。细长的混合叶片,尤其是第一细长混合叶片,特别有利于形成挡板来防止喷射的添加剂喷雾直接冲击在混合管道的壁上。
本发明的设置还可应用在需要或者利于将喷射器模块设在混合管道进口上游而非相对于混合管道横向设置的情况。将喷射器模块设于混合管道进口上游,例如,大体与混合管道一端直线设置,将使排放物清洁模块具有更紧凑的结构布置,因为它可允许排放物清洁模块的其他平行管道更密集地堆叠在混合管道上而不会造成喷射器模块阻塞。
Claims (36)
1.一种排气混合器,包括:
多个细长混合叶片,所述多个细长混合叶片包括限定堆叠结构的最外侧一对细长混合叶片的第一细长混合叶片和最后一个细长混合叶片,其中,所述第一细长混合叶片和所述最后一个细长混合叶片将所述堆叠结构的一个或多个内部细长混合叶片夹在中间;
支撑件,其能够保持多个细长混合叶片处于彼此间隔的关系,该支撑件能够定位于排放物清洁模块或排气管道内或者形成排放物清洁模块或排气管道的一部分。
2.如权利要求1所述的排气混合器,其中,多个细长混合叶片中的每一个具有纵向轴线,并且支撑件能够使得每个细长混合叶片的纵向轴线大体平行于经过该排气混合器的排出流体的预期流动方向延伸。
3.如权利要求1所述的排气混合器,其中,多个细长混合叶片中的每一个包括前缘、后缘以及在前缘和后缘之间延伸的板状主体。
4.如权利要求3所述的排气混合器,其中,每个细长混合叶片的板状主体平行于经过该排气混合器的排出流体的预期流动方向延伸。
5.如权利要求3所述的排气混合器,其中,板状主体包括中心部分和位于中心部分每一侧的翼部,并且每个翼部相对于中心部分向上翻转。
6.如权利要求3所述的排气混合器,其中,多个细长混合叶片中的一个或多个包括与其板状主体成一角度延伸的一个或多个翼片。
7.如权利要求6所述的排气混合器,其中,一个或多个翼片包括下游方向翼片。
8.如权利要求7所述的排气混合器,其中,一个或多个下游方向翼片与细长混合叶片的板状主体成15°到45°的角。
9.如权利要求7所述的排气混合器,其中,下游方向翼片从细长混合叶片的后缘延伸。
10.如权利要求6所述的排气混合器,其中,一个或多个翼片包括一个或多个上游方向翼片。
11.如权利要求10所述的排气混合器,其中,上游方向翼片与细长混合叶片的板状主体成15°到45°的角。
12.如权利要求11所述的排气混合器,其中,上游方向翼片与细长混合叶片的板状主体成30°的角。
13.如权利要求10所述的排气混合器,其中,上游方向翼片从位于前缘和后缘之间的细长混合叶片的中间部分延伸,且上游方向翼片形成预混级。
14.根据权利要求1所述的排气混合器,其包括上游预混级和下游混合级。
15.如权利要求14所述的排气混合器,其中,预混级包括多个上游方向翼片而没有下游方向翼片。
16.如权利要求14所述的排气混合器,其中,混合级包括多个下游方向翼片而没有上游方向翼片。
17.如权利要求1所述的排气混合器,其中,第一细长混合叶片长于所述一个或多个内部细长混合叶片。
18.如权利要求1所述的排气混合器,其中,第一细长混合叶片包括一个或多个下游方向翼片而没有上游方向翼片。
19.如权利要求1所述的排气混合器,其中,最后一个细长混合叶片包括一个或多个上游方向翼片而没有下游方向翼片。
20.如权利要求1所述的排气混合器,其中,所述一个或多个内部细长混合叶片包括具有不同长度的多个细长混合叶片。
21.根据权利要求1的排气混合器,其中,第一细长混合叶片向上游延伸超过支撑件的进口端以形成挡板。
22.根据权利要求1所述的排气混合器,其中,多个细长混合叶片通过焊缝连接到支撑件上,焊缝沿着细长混合叶片的一个或多个侧边延伸。
23.根据权利要求22所述的排气混合器,其中,细长混合叶片的一个或多个侧边接收在设于支撑件内的槽内。
24.根据权利要求1所述的排气混合器,其中,支撑件被成形以符合其所要安装到的排放物清洁模块的一部分的形状。
25.一种排放物清洁模块,其包括根据权利要求1所述的排气混合器。
26.如权利要求25所述的排放物清洁模块,还包括:
混合管道,其具有进口、出口和纵向轴线;和
喷射器模块,其中:
该排气混合器至少部分位于混合管道内,使得多个细长混合叶片沿着混合管道的纵向轴线延伸;以及
喷射器模块设在混合管道的进口上游并且该喷射器模块的出口定向为将添加剂喷射到混合管道的进口内。
27.如权利要求26所述的排放物清洁模块,其中,喷射器模块的出口位于或靠近混合管道的纵向轴线的延伸部分处。
28.如权利要求26所述的排放物清洁模块,其中,喷射器模块的出口被定向为将添加剂喷射为喷雾,其具有沿着或者平行于混合管道的纵向轴线对中的喷雾形状。
29.如权利要求26所述的排放物清洁模块,其中,各个细长混合叶片的板状主体平行于混合管道的纵向轴线延伸。
30.如权利要求26所述的排放物清洁模块,其中,第一细长混合叶片向上游朝着喷射器模块延伸,超过混合管道的进口以形成挡板,用来阻止或减少由喷射器模块的出口喷出的添加剂对混合管道的壁的冲击。
31.如权利要求26所述的排放物清洁模块,其中,混合管道的进口联接到第一端部联接器,用于将排出流体供给到混合管道的进口。
32.如权利要求31所述的排放物清洁模块,其中,喷射器模块安装在第一端部联接器中。
33.一种将添加剂混合到排出流体中的方法,包括如下步骤:使排出流体流沿具有进口、出口和纵向轴线的混合管道流过;
从喷射器模块将添加剂喷雾喷射到排出流体流内;和
使排出流体流和添加剂喷雾经过至少部分位于混合管道内的排气混合器;其中:
排气混合器包括多个细长混合叶片,其以间隔方式设置用来湍流混合添加剂喷雾和排出流体;
所述多个细长混合叶片包括限定堆叠结构的最外侧一对细长混合叶片的第一细长混合叶片和最后一个细长混合叶片,其中,所述第一细长混合叶片和所述最后一个细长混合叶片将所述堆叠结构的一个或多个内部细长混合叶片夹在中间;
每个细长混合叶片具有沿着混合管道的纵向轴线延伸的纵向轴线;和
通过喷射器模块将添加剂喷雾喷射到混合管道的进口。
34.如权利要求33所述的方法,其中,添加剂喷雾被喷射为具有沿着或者平行于混合管道的纵向轴线对中的喷雾形式的喷雾。
35.如权利要求33所述的方法,其中,首先将添加剂喷射到联接到混合管道的进口的第一端部联接器内,然后使添加剂经过混合管道的进口。
36.如权利要求35所述的方法,其中,排出流体从第一端部联接器进入混合管道的进口。
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CN201380031914.8A Active CN104364488B (zh) | 2012-04-24 | 2013-02-14 | 排气混合器、排放物清洁模块及方法 |
CN201380033551.1A Active CN104395578B (zh) | 2012-04-24 | 2013-04-08 | 用于排放物清洁模块的出口模块 |
CN201380030731.4A Pending CN104364487A (zh) | 2012-04-24 | 2013-04-10 | 用于发动机的排放物清洁模块 |
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CN201280072632.8A Pending CN104302885A (zh) | 2012-04-24 | 2012-07-27 | 具有传感器安装装置的后处理模块 |
CN201280073991.5A Pending CN104379893A (zh) | 2012-04-24 | 2012-07-27 | 用于排放物清洁模块的入口模块 |
CN201280073985.XA Active CN104364486B (zh) | 2012-04-24 | 2012-12-07 | 排放物清洁模块和相关的电子器件支承单元 |
CN201280072602.7A Active CN104246162B (zh) | 2012-04-24 | 2012-12-07 | 排放物清洁模块 |
CN201280072603.1A Pending CN104271914A (zh) | 2012-04-24 | 2012-12-07 | 排放物清洁模块 |
CN201280072613.5A Pending CN104246156A (zh) | 2012-04-24 | 2012-12-07 | 排放物清洁模块和清洁颗粒过滤器的方法 |
CN201280072574.9A Active CN104246163B (zh) | 2012-04-24 | 2012-12-07 | 排放物清洁模块 |
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2012
- 2012-04-24 GB GB201207201A patent/GB201207201D0/en not_active Ceased
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