CN1311844A - Method and device for post-treamtent of exhaust gases of an internal combustion engine - Google Patents

Method and device for post-treamtent of exhaust gases of an internal combustion engine Download PDF

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Publication number
CN1311844A
CN1311844A CN 99809069 CN99809069A CN1311844A CN 1311844 A CN1311844 A CN 1311844A CN 99809069 CN99809069 CN 99809069 CN 99809069 A CN99809069 A CN 99809069A CN 1311844 A CN1311844 A CN 1311844A
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object
range
characterized
exhaust gas
apparatus according
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CN 99809069
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Chinese (zh)
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A·克尼格
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大众汽车有限公司
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Priority to DE1998150762 priority patent/DE19850762A1/en
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Publication of CN1311844A publication Critical patent/CN1311844A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/88Handling or mounting catalysts
    • B01D53/885Devices in general for catalytic purification of waste gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust 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
    • F01N3/0214Exhaust 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 with filters comprising movable parts, e.g. rotating filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842Nitrogen oxides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871Regulation of absorbents or adsorbents, e.g. purging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0885Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2290/00Movable parts or members in exhaust systems for other than for control purposes
    • F01N2290/02Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement
    • F01N2290/06Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement driven by auxiliary drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/04Sulfur or sulfur oxides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00Adding substances to exhaust gases
    • F01N2610/03Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/12Other methods of operation
    • F02B2075/125Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Technologies for the improvement of indicated efficiency of a conventional ICE
    • Y02T10/123Fuel injection
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/20Exhaust after-treatment
    • Y02T10/22Three way catalyst technology, i.e. oxidation or reduction at stoichiometric equivalence ratio

Abstract

一种用于内燃机的发动机废气后处理的设备和方法,具有一个被废气流过的、可回转地设在废气流中的物体(4)和一个可与物体(4)一起回转的过滤器(6),其中,物体的旋转是如此选择的,使在物体中形成的温度界面的最大值留在物体中。 The latter apparatus and method for treating internal combustion engine exhaust having an exhaust gas flows is an object (4) rotatably disposed in the exhaust gas stream and with a rotating object (4) filters ( 6), wherein rotation of the object are selected so that the maximum temperature at the interface is formed in the object in the object aside. 物体优选地设计成具有一个轴向的、用于容纳过滤器(6)的空腔(7)的圆柱体,该圆柱体沿径向贯穿有沟槽(3),其中,圆柱体的回转轴垂直于废气流动方向。 The object is preferably designed to have an axial, cylindrical cavity for receiving the filter (6) (7) of the cylinder with a radial through-grooves (3), wherein the rotary axis of the cylinder perpendicular to the direction of flow of the exhaust gas. 如果物体为NOx-存储催化器结构,则脱氮可通过对废气的循环加浓或通过把附加的燃料注入设备被促进。 If the object is a NOx- storage catalytic structure, the circulation of the exhaust gas denitrification may or enrichment is promoted by the additional fuel injection devices. 对催化器的脱硫通过对催化器的旋转的相应控制被促进。 Desulfurizing catalyst is promoted by a corresponding rotation of the control catalyst.

Description

用于内燃机的发动机废气后处理的设备和方法 Apparatus and method for internal combustion engine exhaust gas post-treatment

本发明涉及一种用于内燃机的发动机废气后处理的设备和方法,并特别是涉及一种用于后处理废气流中的炭烟微粒和/或氮氧化物的设备和方法。 The present invention relates to apparatus and method for internal combustion engine exhaust latter for processing, and in particular soot particles in the exhaust stream and / or nitrogen oxides apparatus and method relates to a method for post-processing.

公开的氮氧化物(NOx)催化器吸收在发动机的稀混合气运转期间产生的氮氧化物并使在发动机的浓混合气运转期间存储的氮氧化物还原,其中,公开的方法是非连续的并且对氮氧化物的存储和还原在不同的时间阶段中进行。 Discloses nitrogen oxides (NOx) absorbed in the catalyst during the lean burn operation of the engine and nitrogen oxide generated during the rich mixture operation of the engine is stored in the reduction of nitrogen oxides, wherein the disclosed method is discontinuous and storage and reduction of nitrogen oxides is performed at different time stages. 为能进行这种方法,存储器基于有限的吸收能力必须在一定的时间后被排空。 This method is capable of, based on the limited absorption capacity memory must be drained after a certain time. 排空或者是在预先规定的一段时间过去后进行,或者是必须确定催化器的充满度。 Emptying or after a predetermined period of time has elapsed for, or must determine the fullness of the catalyst. 如果存储器在预先规定的时间过去后被再生,则其缺点在于,出于安全原因,催化器的存储能力不被完全利用,结果导致发动机的运转在油耗和废气特性方面不是最佳。 If the memory regeneration after a predetermined time has elapsed, the disadvantage that, for security reasons, the storage capacity of the catalyst is not fully utilized, resulting in operation of the engine fuel consumption and exhaust gas characteristics are not optimal. 如果存储器在存储器的已达到一定的充满度的情况下被再生,则其缺点在于,需要一个附加的,确定氮氧化物存储催化器的充满度的装置。 If the memory in the memory has reached certain cases been reproduced fullness, it has the disadvantage that requires an additional, nitrogen oxide storage catalytic converter to determine the degree of fill apparatus. 其中,精确地确定存储器的充满度是困难的,据此,在有该附加装置的前提下,在存储器尚未完全充满的情况下,也只得切换到再生动作。 Wherein, to accurately determine the fullness of the memory is difficult, whereby there is the additional means in the premise, in a case where the memory has not been completely filled, it can only switch to the regenerating operation. 这最终同样导致发动机的不理想的运转。 This eventually lead to the same undesirable operation of the engine. 此外,对于两种方法,还有下列情况,即在发动机的浓混合气运转的情况下达不到最佳的废气特性并且为使发动机循环运转,须对发动机进行复杂的控制。 Furthermore, for both methods, there are the following cases, i.e., less than optimal characteristics of exhaust gas released in the case of rich mixture operation of the engine and to the engine cycle operation, the engine must perform complicated control.

此外,为了使氮氧化物存储催化器足够好地起作用,须至少约250℃的温度。 Further, in order that the nitrogen oxide storage catalytic converter to function sufficiently well, the temperature should be at least about 250 deg.] C of. 如果来自发动机的废气太冷,则该方法只能在催化器被加热到该起码温度的条件下才起作用。 If the exhaust gas from the engine is cold, the method can only work at the minimum temperature of the catalyst to be heated. 这样就出现热损耗,据此,大大增加了能耗。 This heat loss occurs, accordingly, greatly increasing the energy consumption.

此外,在柴油机的废气中出现不能被释放到环境中的炭烟微粒。 Further, soot particles can not be released to the environment present in the exhaust gas of a diesel engine. 为了对该带有炭烟微粒的废气进行后处理,炭烟被滞留在一种公开的设备中,并或者是随着炭烟过滤器的达到一定充满度,炭烟过滤器循环地被更换,或者是用一个相应的加热装置点燃和燃烧滞留的炭烟微粒。 For the exhaust gas after treatment with soot particles, soot is stuck in an open device, and with or soot filter reaches a certain fullness, the soot filter is replaced cyclically, ignited or a corresponding heating means and the combustion of soot particle retention. 对于连续的使用,这两种做法均是不令人满意的。 For continuous use, the two approaches are not satisfactory.

因此,发明的任务在于开发一种用于处理内燃机的废气流的、使发动机的最佳运转成为可能的设备和方法。 Accordingly, the task of invention is to develop an exhaust gas treatment flow of an internal combustion engine, so that the best possible operation of the engine apparatus and method.

解决以上任务的技术方案在于权利要求1、24和27的特征。 Tasks to solve the above technical solutions that the features 27, 24 and claims. 发明的优选的实施形式是从属权利要求的主题。 Preferred embodiments of the invention form the subject matter of the dependent claims.

本发明的、用于内燃机发动机废气后处理的设备具有一个其上有被废气流过的沟槽的、可回转地设在废气流中的物体或单体。 , Internal combustion engine exhaust device for the treatment of the present invention has a monomer or an object on which the exhaust gas flows through the grooves, and rotatably disposed in the exhaust gas stream. 单体在此指的是一个物体,该物体可由陶瓷、由金属的载体材料整体地构成或由陶瓷的或金属的、设在一个容纳结构中的扇形段构成。 Herein refers to a monomer of an object, the object may be ceramic, the support material is made of a metal or a ceramic integrally or metallic, arranged in a segment constituting the receiving structure.

此外,本发明的设备具有一个流入通道,该流入通道与物体的沟槽的一个部分(B1)流动连通。 Further, the apparatus of the present invention have one inflow channel, a portion of the inflow passage of the object of the trench (B1) in flow communication. 此外,还规定有一个流动连通,该流动连通与沟槽的被流入通道经过的部分B1输出侧地连通并使该部分B1与沟槽的一部分B2流动地连通,该部分B2不与流入通道连通。 In addition, there is also provided a communication flow, flows into the flow channel through the groove communicating with the output side of the portion B1 and a portion of the communicating groove portion B1 and B2 communication flow, the portion with the inflow passage does not communicate B2 .

物体或单体优选地分为两个范围B1、B2,其中,废气在物体的前端面处进入第一范围B1,在第一范围B1的后端面处流出,流经设在该处的过滤器,流入第二范围B2的一个端面并在另一端面2处离开第二范围B2,其中,物体4在流经过程中绕一个基本上垂直于废气流的流动方向的轴回转。 Object divided into two or monomer preferably range B1, B2, wherein the exhaust gas enters the first range B1 at a front end face of the object flowing in the first range B1 at the rear end, where the flow through the filter provided in the , flows into a second range away from the second end surface B2 and the other end face 2 at a range of B2, which flows through the process in object 4 about a substantially perpendicular to the flow direction of the rotation axis of the exhaust stream.

物体优选地具有圆柱形的形状,其中,沟槽沿径向伸展。 Preferably the object has a cylindrical shape, wherein the grooves extend radially. 物体沿轴向有一圆柱形的空当,换言之,圆柱体沿轴向是空心的。 It has a cylindrical body in the axial direction when the air, in other words, the axial direction of the cylinder is hollow. 其中,物体可由金属或陶瓷构成,其中,物体既可为整体结构,或可为可由扇形段组合的结构。 Wherein, it is made of metal or ceramic object, wherein the object either unitary structure or may be combined as a segment structure. 如果物体由扇形段构成,则这些扇形段为沟槽所伸过,使沟槽在扇形段组合后径向于圆柱体的对称轴伸展。 If the object is composed of segments, these segments of trenches extending through the groove segments in the radial axis of symmetry of the combination cylinder extends.

本发明的设备优选地包括一个过滤器,该过滤器可以是可回转地设置的,其中,过滤器可特别是随单体回转。 Preferably the apparatus according to the present invention comprises a filter, the filter may be rotatably arranged, wherein the filter may in particular monomers with rotation. 其中,在圆柱形的、具有轴向空腔的物体的情况下,过滤器设在该轴向空腔中。 Wherein, in the case of an object having a cylindrical axial cavity, the filter provided in the axial cavity. 其中,过滤器可以是固定的或可随物体一起回转,其中,回转速度不一定是与物体的回转速度等同的。 Wherein, the filter may be fixed or pivotable together with the object, wherein the rotational speed is not necessarily equivalent to the revolution speed of the object.

此外,内燃机具有一个把燃料直喷入燃烧室的燃料喷射装置和/或是一个柴油机。 Further, the internal combustion engine having a fuel injection device of the fuel injection into the combustion chamber / or a diesel engine and.

过滤器优选地具有一个加热元件,该加热元件用于在冷起动后把过滤器加热至工作温度。 Filter preferably has a heating element, the heating element after a cold start for the filter is heated to the operating temperature. 在达到所需的温度后,加热元件可被断开。 After the desired temperature is reached, the heating element can be turned off. 原则上,在发动机的条件(废气温度)不导致炭烟燃烧的条件下才备有一个附加的加热装置。 In principle, under condition of the engine (exhaust gas temperature) does not result in soot combustion was provided with an additional heating means. 所需的用于有害物质变换的温度特别是也可替代地或辅助地通过相宜地选择的、发动机的参数(喷射量、喷射过程、补充喷射)快速地被达到,就此而言,在所需的温度被达到的情况下,发动机的参数也恢复到其正常条件。 Desired transformation temperature for the particular hazardous substances may alternatively or secondarily by selecting the appropriate parameters of the engine (the injection quantity, injection, post-injection) is reached quickly, for that matter, in the desired a case where a temperature is reached, the parameter of the engine is also returned to its normal condition.

此外,为了对有害物质进行还原,特别是对NOx·HC和/或CO进行还原,物体可至少部分地涂有催化剂层。 Further, in order for the reduction of harmful substances, especially for NOx · HC and / or CO reduction, the object may be at least partially coated with a catalyst layer.

此外,设备具有一个固定的外壳(12),绕自己的纵轴回转的物体设在该外壳中。 Furthermore, the device having a stationary housing (12), rotating about their longitudinal axis disposed in the housing body. 该外壳是优选地由非金属的材料构成的。 The housing is preferably made of a non-metallic material.

物体的回转优选地通过一个驱动单元进行,该驱动单元可通过一个电机构成。 Object is preferably carried out by a rotary driving unit, the driving unit may be constituted by a motor. 驱动单元也可通过一个外磁场和设在外壳内的磁铁构成。 The drive unit may also be constituted by an external magnetic field and a magnet disposed within the housing. 此外,物体也可以一个透平的形式通过废气流被转动。 In addition, the object may be in the form of a turbine is rotated by exhaust gas flow. 物体(4)的转速优选地为约0.3至10转/分,其中,转速的选择准则在于,建立的温度分布的最大值留在物体内部,最好是留在过滤器所处的地方。 Object (4) the rotational speed is preferably about 0.3 to 10 rotations / min, wherein the selection criterion is that the rotational speed, the maximum value of the temperature distribution inside the object to remain in the establishment, preferably left in place the filter is located.

此外,为了在发动机能稀混合气运转的情况下促使氮氧化物废气成分还原,设备可具有一个用于注入附加的燃料的机构。 Further, in order to promote the case of nitrogen oxides in lean burn engine can be operated reducing exhaust gas components, the device may have a mechanism for injecting additional fuel. 该用于注入附加燃料的机构是优选地设在物体的回转轴中的。 The means for injecting the additional fuel is preferably provided in the rotating shaft of the object.

本发明的、用于内燃机的废气后处理的方法,其中,其沿废气流动方向为沟槽所贯穿并分为两个范围的物体是设在废气流中的,具有如下步骤:把废气流导入第一范围的前端面,在第一范围的后端面上把废气流导入第二范围的一个端面并在第二范围的另一端面上释放废气流,并且在运转的过程中让物体绕一个轴线回转,使沟槽从第一范围转入第二范围。 A method for the treatment of exhaust gases of an internal combustion engine according to the present invention, wherein the exhaust gas flow direction of the trenches along penetrated and divided into two ranges of the object is provided in the exhaust gas stream, comprising the following steps: introducing the exhaust gas stream the front end surface of the first range, the rear end surface of the first range to a second range of the end surface of the exhaust stream into the exhaust gas stream and releases the other end surface of the second range, and about an axis so that the object during the operation of rotation, of the trench from the first range into a second range.

此外,物体以这样的速度绕其轴线旋转,使通过废气流对第二范围的加热导致通过第一范围对废气流的加热。 Furthermore, the object is rotated at such a speed about its axis, so that the exhaust gas stream through a second heat range results in a first range by heating the exhaust gas stream.

废气流的炭烟微粒优选地滞留在一个设于第一范围的废气流出侧的端面和第二范围的废气流入侧的端面之间的过滤器上并且转速如此地被选择,使温度界面的最大值大致上位于该过滤器上。 The filter end face of the exhaust gas between the exhaust stream soot particles retained in the exhaust gas is preferably provided in a first range and the second range outflow end face side of the inflow side and the rotational speed is selected in such a way, that the maximum temperature at the interface value located substantially on the filter.

在该方法中所用的物体优选地至少部分地涂有催化剂层,使在内燃机的稀混合气运转期间存储废气中的NOx。 Objects in the method is preferably used in at least partially coated with a catalyst layer, the NOx in the exhaust gas is stored during the lean burn operation of the internal combustion engine. 通过向物体中附加还原剂,连续的NOx-存储器再生方法也可起作用。 By adding a reducing agent to an object, the continuous regeneration method NOx- memory may play a role.

用于使本发明的、用于内燃机的废气后处理的设备脱硫的本发明的方法,其中,设备是作为氮氧化物存储器设计的,具有如下步骤:在脱硫开始时,废气中的有害物的量增加的同时,减慢或中止物体的旋转,直至出现的温度最大值进入或通过第二范围,特别是进入或通过第二范围的废气流出侧的端面附近,使物体进行旋转,直至第二范围至少大部分地占据第一范围的位置,使温度最大值主要处在第一范围中,使旋转中止,直至温度最大值起码到达第二范围,减少补充喷射并使物体重新旋转。 For the present invention, the method of the present invention apparatus for an exhaust gas after the desulfurization process of an internal combustion engine, wherein the memory device is designed as a nitrogen oxide, comprising the following steps: at the start of desulfurization, harmful substances in the exhaust gas increased at the same time, slowing down or rotation of the object suspended until the maximum temperature occurs into or through a second range, especially in the vicinity of the outflow end face side or the exhaust gas through a second range of the object is rotated until the second at least largely occupy the position range of the first range, the maximum value of the temperature range in the first primary, the rotating suspended until the temperature reaches at least a second maximum range, the object and re-injection reduces rotation.

其中,下列做法可以是必要的,即让旋转减慢或者中止被多次重复,直至基本上所有的范围均脱了硫。 Wherein, the following approach may be necessary, i.e., slowing or stopping so that the rotation is repeated until substantially all of the sulfur ranges are off. 在温度最大值大致处在两个范围的交点上的情况下,物体的连续旋转被重新建立。 In the case where the maximum temperature is substantially at the intersection of the two ranges, continuous rotation of the object is re-established.

下面借助附图详细说明本发明的优选的实施形式。 The preferred embodiment of the present invention is described in detail below with reference to drawings. 附图所示为:图1a用于内燃机的废气后处理的本发明设备的第一实施形式的水平的横截面视图,图1b图1a所示设备的垂直的横截面图,图2用于内燃机的废气后处理的本发明设备的第二实施形式的水平的横截面视图。 As shown in the drawings is: Figure 1a a cross-sectional view of a first embodiment of the present invention in the form of a horizontal apparatus after the internal combustion engine exhaust gas treatment, as shown in Figure 1a Figure 1b a vertical cross-sectional view of the apparatus, FIG. 2 for an internal combustion engine cross-sectional view of a second embodiment of the present invention, the level of the exhaust gas treatment apparatus of the.

图1a示出了用于内燃机的废气后处理的本发明设备的第一个优选的实施形式的水平横截面图。 Figure 1a shows a horizontal cross-sectional view of a preferred apparatus of the present invention, an internal combustion engine for an exhaust gas post-processing of the embodiment. 发动机(未示出)的原废气通过一条废气通道1流入一个圆柱形的、贯穿有沟槽3的物体4的第一范围B1的外端面2。 Raw exhaust gas of the engine (not shown) via an exhaust passage 1 flows into a cylindrical, inserted through a first range B1 object trench 4 3 2 outer end face. 其中,沟槽3相对于通过圆柱体的对称轴形成的回转轴9沿径向伸展。 Wherein the groove 3 with respect to the rotation axis formed by the axis of symmetry of the cylinder 9 extending radially. 如前所述,垂直于回转轴9设置的沟槽3是至少部分地涂有催化剂层的。 As described above, the trench perpendicular to the rotary shaft 9 is provided at least 3 partially coated with a catalyst layer. 在废气从物体4的通过一个在物体中的中央构成的轴向空腔7被形成的内端面5流出后,废气通过一个设在空腔7中的微粒过滤器6并通过外端面5进入对面的第二范围B2并在第二范围B2的外端面2处进入一个流出通道8。 After the exhaust gas flows from the end surface 4 of the object through a central axial cavity configured in the object 7 is formed by 5, provided in the exhaust gas passes through a cavity 7 through the particulate filter 6 and into the opposite outer end faces 5 a second end surface in a range of B2 and B2 of the second outer range at 2 into the outflow channel 8 a. 在图1a中示出的是,第一范围和第二范围是通过流入通道1和流出通道8限定到分别三个沟槽3的。 Shown in Figure 1a, the first and second ranges are 1 and the outflow passage 8 through the inlet passage to define three grooves 3, respectively. 这不是非如此不可。 This is not not not so. 通过包围物体4的外壳10的另一种结构,可达到如下结果,即流入和流出的废气分别达到最大为180°的第一和第二范围B1、B2。 By another configuration of the housing 10 surrounding the object 4, the following results can be achieved, i.e., the exhaust gas inflow and outflow of a first and respectively a second maximum range of B1 180 °, B2. 换言之,第一和第二范围可最大包括物体4的一半。 In other words, comprising a first half and a second maximum range of the object 4.

图1b示出了本发明的设备的垂直的截面图。 Figure 1b shows a vertical cross-sectional view of the apparatus of the present invention. 在贯穿有沟槽3的物体4之内设有通常与物体4同步回转的过滤器6。 The through grooves 4 of the object 3 is equipped with a filter 6 normally synchronized with the rotation of the object 4. 物体4和过滤器6设在一个相应的外壳10中。 Object 4 and the filter 6 disposed in a respective housing 10. 回转绕一个回转轴9进行,该回转轴9可用于输入附加燃料以在一个催化活性的过滤器中或在转子矩阵,即物体4中燃烧。 A rotation about rotary shaft 9, the rotary shaft 9 may be used to input additional fuel to the rotor in a matrix or a catalytic activity of the filter, i.e. combustion of the object 4.

通过流经具有过滤器6的物体4,在输入侧上,温度通过在废气流经涂有催化剂层的沟槽3期间对在废气中存在的CO和HC的催化转换有所升高。 By passing through a filter having the object 46, on the input side, the temperature of the exhaust gas flowing through the catalytic converter is coated with the presence of CO and HC in the exhaust gas was increased during the trench catalyst layer 3. 同时,氮氧化物在沟槽3涂有吸收NOx的催化剂层的情况下可化学地被吸收。 Meanwhile, the nitrogen oxides in the trench 3 is coated with a chemically absorbed by the absorbent layer where the NOx catalyst.

温度最大值在设备的中心,在微粒过滤器6中被达到。 Temperature maximum at the center of the device, is reached in the particulate filter 6. 在继续流经物体4或转子时,废气再次放出其热量并以约与输入侧上相同的温度离开转子4。 When the object 4 or continues to flow through the rotor, and the exhaust gas re-release its heat at the same temperature for about 4 with the input side away from the rotor. 在不旋转的情况下,温度界面,即最大温度会从设备中被排出。 Without rotating, the temperature of the interface, i.e., the maximum temperature will be discharged from the plant. 通过转子4的旋转,温度界面一再被驱回到系统中。 By rotation of the rotor 4, the temperature of the interface to be driven back into the system again. 平均产生一个周期固定的分布,其最大值处在过滤器6的范围内。 Average of a fixed distribution period, the maximum value in the range of 6 filter.

图2示出了用于内燃机的废气后处理的本发明设备的第二实施形式的水平的横截面视图,在该第二实施形式中,设备作为纯粹的NOx-存储催化器运转。 Figure 2 shows a cross-sectional view of a second embodiment of the present invention, an exhaust gas apparatus for internal combustion engine after the processing level, in this second form of embodiment, the device as a pure NOx- storage catalytic converter operation.

图2示出了一个绕其纵轴旋转的物体4,该物体4作为NOx-存储催化器是有涂层的,该NOx-存储催化器作为蓄热式热交换器被使用。 Figure 2 shows a body 4 about its longitudinal axis, which body 4 is a NOx- storage catalytic coated, the NOx- storage catalytic converter is used as a regenerative heat exchanger. 物体4沿径向具有许多细的沟槽3并径向地被废气流过,具体地说,废气经由一个流入通道1流入物体4并经由一个流出通道8被导出,据此,第一和第二范围B1、B2与第一实施形式的情况一样地被形成。 Object 4 having radial grooves 3 and a plurality of fine radially by the exhaust gas flows, specifically, the exhaust gas flows through a passage 1 flows into the object 4 and 8 is led via one outflow channel, whereby the first and second two range B1, B2 in the case of the first embodiment is formed in the same manner. 此外,物体具有一个轴向的空腔7,该空腔7被物体4的内端面5限定。 In addition, the object having an axial cavity 7, the cavity 7 is defined in the object 5 within the end surface 4. 该轴向的空腔用于对第一和第二范围B1、B2的沟槽3进行流动连通。 The axial cavity for the first and second ranges B1, B2 of the groove 3 in flow communication. 最好不发生流动转向,据此,减少了压力损耗。 Preferably the flow diversion occurs, whereby the pressure loss is reduced. 沟槽3的表示为圆环T1的、靠内的部分,涂有存储NOx的催化剂层。 Ring groove 3 is represented by T1, the portion on the inside, is coated with a catalyst layer of NOx storage. 沟槽3的表示为圆环T2的、靠外的部分未涂催化剂层并且不参予催化。 Ring groove 3 is represented as T2, the outer part of the catalyst layer and does not participate in the catalytic coating. 该靠外的部分只有热交换器的功能。 The only function on the outer part of the heat exchanger. 通过在旋转的同时为废气径向所流过,在物体4中可建立一个温度分布,在物体的外端面2的流入或流出侧上的温度大致等于废气的温度,向中间,侧温度陡升到约350至400℃。 While being rotated by the exhaust gas flows radially, the object 4 may be established in a temperature profile, the temperature on the outer end surface of the object into or out of side 2 is substantially equal to the temperature of the exhaust gases, to the center, with a temperature ramp side to about 350 to 400 ℃. 据此,催化器的一部分总是处在一个最佳的、用于存储NOx的温度范围中。 Accordingly, a portion of the catalyst always in an optimal temperature range for storage of NOx. 催化器的,即物体4的旋转设置负责按回收器的原理最大限定地回收热。 The catalyst, i.e., rotate the object 4 disposed according to the principles responsible for defining the maximum recovery device to recover heat. 在阻热理想、规格设计和转速正确的情况下,曾经进入的热不再离开系统。 In the ideal thermal resistance, design specifications and the correct speed, the heat has entered no longer leave the system. 实际出现的热损耗通过在有害物质氧化时在范围T1中释放的反应热被补偿。 The actual heat loss occurring is compensated for by the reaction heat released in the range T1 of harmful substances when oxidized.

为了使冷系统起动,约200℃的起燃温度必须在催化活性的范围T2中被达到。 In order to make the cold start system, ignition temperature of about 200 ℃ must be reached in the catalytically active range T2. 为此,在物体4的中心可备有一个电的加热元件11。 For this reason, in the center of the object 4 may be provided with an electrical heating element 11. 作为替代和/或辅助,为有害物质转换所需的温度也可通过适合地选择的、发动机的参数(特别是在采用蓄气罐进气喷油的情况下譬如通过喷油时间点的、喷射过程的、喷射量的和/或补充喷射的变化)被达到。 Alternatively and / or auxiliary, harmful substances necessary for the transition temperature can also be suitably selected, parameters of the engine (especially in the case of the accumulator tank such as fuel injection by the intake fuel injection time point, the injection process, the injection quantity and / or a change-injection) is reached. 在达到起燃温度后,所采取的措施终结。 After reaching the light-off temperature, the end of the measures taken. 继续提高温度只需通过短时间地提高通过在转换有害物质时在范围T1中释放的反应热使催化器温度有所提高的有害物浓度进行。 Continue to increase the temperature of the catalytic temperature by only a short time by improving the reaction heat released in the range T1 in the conversion of harmful substances increased the concentration of harmful substances. 有害物浓度的提高可或者是通过在物体4的中心单独地注入燃料或者是同样通过发动机的参数被达到。 Can improve the concentration of harmful substances, or by separately injecting the fuel in the center of the object 4 or through the same parameters of the engine is reached.

物体4的旋转通过一个电气的或者机械的适当驱动装置(未示出)实现。 Rotation of the object 4 by a suitable electrical or mechanical drive means (not shown) implemented. 为此,物体4被装在一个可回转支承的轴或回转轴9上,该轴被上述驱动装置转动。 To this end, the object is mounted on a shaft pivotably supported on the rotating shaft 4 or 9, the shaft is rotated by said drive means. 通过该轴9,也可进行附加的燃料注入。 Through the shaft 9 may also be subjected to additional fuel injection. 在使用一个电机的情况下,转速可借助来自发动机控制装置的、适合的信息与汽车发动机的工况相适配。 In the case where a motor rotational speed from the engine may be by means of a control device, a suitable condition information is adapted to the automobile engine. 此外,物体4是设在一个适合的、固定的外壳10中的。 Furthermore, the object 4 is provided on a suitable fixed housing 10.

NOx-存储催化器的再生按已知的方式通过对废气的发动机加浓进行。 Regeneration NOx- storage catalytic converter in a known manner by an engine exhaust gas for enrichment.

在用含硫的燃料的情况下,须每隔一定时间,如在前面所描述的那样,对催化器进行脱硫。 In the case of sulfur-containing fuel, at intervals of a predetermined time, as described earlier, the catalyst for desulfurization. 这可在高于600℃的温度时以热方式进行。 This may be carried out thermally at a temperature above at 600 ℃ of. 如前所述,在所描述的系统中,可通过增加有害物质的浓度或通过有害物质的氧化使温度几乎任意地提高。 As described above, in the system described, may optionally be improved by increasing the concentration of hazardous substances or hazardous substances by oxidation and the temperature almost. 通过适当的控制转速和有害物质浓度,催化器在所要求的若干分钟的时间里可被保持到所需的高温。 It may be held to the high temperatures required by appropriately controlling the rotation speed and the concentration of harmful substances, the catalyst in the required period of several minutes. 如前所述,与传统的系统相比,能耗少得多。 As described above, as compared with conventional systems, much less energy.

因此,上面借助两个实施例所描述的设备的以下实施形式是可能的:具有一个可在废气流中回转的物体4、没有催化剂涂层和没有用于在设备中建立温度最大值的过滤器的设备;具有一个可在废气流中回转的物体4和一个设在物体4中的、用于对炭烟微粒进行燃烧的过滤器6的设备;具有一个可在废气流中回转的物体4和物体4的至少部分涂有催化剂的涂层的设备;具有一个可在废气流中回转的物体4以及一个设在物体4中的过滤器6和物体4的至少部分涂有催化剂的涂层的设备。 Thus, by means of the above two apparatus embodiments described embodiments are possible: having a rotating object 4 in the exhaust stream, there is no catalyst coating and without a filter to establish the maximum temperature in the apparatus device; having a pivotable in the exhaust stream and an object provided in the object 4, the device 4 for soot combustion particulate filter 6; having a rotating object 4 in the exhaust gas stream and 4 is an object at least partially coated with a catalyst coating apparatus; having a pivotable in the exhaust stream and the object 4 is provided in the object 4 a filter 6 and the object 4 is at least partially coated catalyst coating apparatus .

Claims (32)

1. 1. 用于内燃机的发动机废气后处理的设备,其特征在于,该设备具有一个其上有被废气流过的沟槽(3)的物体(4),该物体(4)是可回转地设在废气流中的。 Apparatus for internal combustion engine exhaust after treatment, wherein, the apparatus having a body on which a groove (3) is flowing through the exhaust gas (4), the object (4) is rotatably disposed in the exhaust gas stream.
2. 2. 按照权利要求1所述的设备,其特征在于,备有一个流入通道,该流入通道与物体(4)的沟槽(3)的一个范围(B1)流动连通。 The apparatus according to claim 1, characterized in that, with an inflow passage, the inflow passage of the object (4) of the groove (3) in a range (B1) in flow communication.
3. 3. 按照权利要求2所述的设备,其特征在于,备有一个流动连通,该流动连通与沟槽(3)的被流入通道所流经的范围(B1)在出口侧连通并使范围(B1)与沟槽(3)的一个不与流入通道流动连通的范围(B2)流动连通。 The apparatus according to claim 2, characterized in that a flow communication with the flow communication with the groove (3) is flowed through the inflow channel range (B1) and the communication range (B1) at the outlet side communication with a range (B2) is not in communication with the flow passage flows into the groove (3) flows.
4. 4. 按照以上权利要求之一所述的设备,其特征在于,物体(4)分为两个范围(B1,B2),其中,废气在物体(4)的前端面(2)上流入第一范围(B1),在第一范围(B1)的后端面(5)上流出,流入第二范围(B2)的一个端面(5)并在另一端面(2)上离开第二范围(B2),其中,物体(4)在流过期间绕一个基本上垂直于废气流的流动方向的轴回转。 The apparatus according to any one of the preceding claims, characterized in that the object (4) is divided into two ranges (B1, B2), wherein a first range of exhaust gas flowing into the object (4) on the front end face (2) ( Bl), in a first range (B1), a rear end surface (5) and flows into a second range (B2) is an end face (5) and away from the second range (B2) on the other end face (2), wherein , the object (4) during the flow through the flow about a direction substantially perpendicular to the axis of rotation of the exhaust gas flow.
5. 5. 按照以上权利要求之一所述的设备,其特征在于,设备具有一个过滤器(6)。 The apparatus according to any one of the preceding claims, characterized in that the apparatus has a filter (6).
6. 6. 按照权利要求5所述的设备,其特征在于,该过滤器是可回转地,特别是可与物体(4)一起回转地设置的。 The apparatus according to claim 5, wherein the filter is rotatably, in particular pivotably disposed with an object (4).
7. 7. 按照权利要求4和权利要求5或6所述的设备,其特征在于,过滤器(6)设在第一范围(B1)的后端面(5)和第二范围(B2)的端面(5)之间。 Device according to claim 5 or claims 4 and 6, characterized in that the filter (6) provided in a first range (B1), a rear end surface (5) and a second range (B2) is the end face (5) between.
8. 8. 按照以上权利要求之一所述的设备,其特征在于,为了使有害物质还原,特别是使NOx、HC和/或CO还原,物体(4)是至少部分(T1)地涂有催化剂层的。 The apparatus according to any one of the preceding claims, characterized in that, in order to make the reduction of harmful substances, in particular so that NOx, HC and / or CO reduction object (4) is at least partially (T1) coated with a catalyst layer.
7. 7. 按照以上权利要求之一所述的设备,其特征在于,物体(4)具有圆柱形的形状,其中,沟槽(3)沿径向伸展。 The apparatus according to any one of the preceding claims, characterized in that the object (4) having a cylindrical shape, wherein the grooves (3) extend radially.
8. 8. 按照权利要求7所述的设备,其特征在于,物体(4)沿轴向具有一个圆柱形的空当(7)。 The apparatus according to claim 7, characterized in that the object (4) having a cylindrical axially when empty (7).
9. 9. 按照权利要求8所述的设备,其特征在于,在圆柱形的空当(7)中设有过滤器(6)。 The apparatus according to claim 8, wherein the filter is provided (6) in the cylindrical space when (7).
10. 10. 按照以上权利要求之一所述的设备,其特征在于,内燃机具有一个把燃料直接喷入燃烧室的喷射装置和/或是一台柴油机。 The apparatus according to any one of the preceding claims, characterized in that the internal combustion engine having a fuel directly into a combustion chamber of the injection device and / or a diesel engine.
11. 11. 按照以上权利要求之一所述的设备,其特征在于,设备具有一个加热元件(11)。 The apparatus according to any one of the preceding claims, characterized in that the apparatus has a heating element (11).
12. 12. 按照以上权利要求之一所述的设备,其特征在于,设备具有一个固定的外壳(12),该外壳中设有绕其纵轴回转的物体(4)。 The apparatus according to any one of the preceding claims, characterized in that the device having a stationary housing (12), is provided in the housing body (4) rotating about its longitudinal axis.
13. 13. 按照权利要求11所述的设备,其特征在于,该外壳是由非金属的材料构成的。 The apparatus according to claim 11, wherein the housing is formed of non-metallic material.
15. 15. 按照以上权利要求之一所述的设备,其特征在于,物体(4)通过一个驱动单元(9)转动。 The apparatus according to any one of the preceding claims, characterized in that, rotated by a drive unit (9) of the object (4).
16. 16. 按照权利要求15所述的设备,其特征在于,驱动单元(9)通过一个电机被构成。 The apparatus according to claim 15, characterized in that the drive unit (9) is formed by a motor.
17. 17. 按照权利要求15所述的设备,其特征在于,该驱动单元通过一个外部的磁场和设在外壳内的磁铁被构成。 The apparatus according to claim 15, wherein the driving unit through an external magnetic field and a magnet disposed within the housing is configured.
18. 18. 按照以上权利要求之一所述的设备,其特征在于,物体(4)的旋转速度为约0.3至10转/分。 The apparatus according to any one of the preceding claims, characterized in that the object (4) the rotational speed of about 0.3 to 10 rotations / min.
19. 19. 按照以上权利要求之一所述的设备,其特征在于,物体(4)是由金属或陶瓷构成的。 The apparatus according to any one of the preceding claims, characterized in that the object (4) are made of metal or ceramic.
20. 20. 按照以上权利要求之一所述的设备,其特征在于,物体(4)是一个单体。 The apparatus according to any one of the preceding claims, characterized in that the object (4) is a monomer.
21. twenty one. 按照以上权利要求之一所述的设备,其特征在于,物体(4)由贯穿有沟槽(3)的扇形段组成。 The apparatus according to any one of the preceding claims, characterized in that the object (4) through a groove (3) is composed of segments.
22. twenty two. 按照以上权利要求之一所述的设备,其特征在于,设备具有一个用于注入附加的燃料的机构。 The apparatus according to any one of the preceding claims, wherein the apparatus has a mechanism for injecting additional fuel.
23. twenty three. 按照权利要求19所述的设备,其特征在于,该用于注入附加的燃料的机构是设在物体(4)的回转轴(9)中的。 The apparatus according to claim 19, characterized in that the additional fuel injection for a mechanism is provided in the object (4) of the rotating shaft (9).
24. twenty four. 用于内燃机的废气流后处理的方法,其特征在于,在废气流中设有一个物体(4),该物体(4)沿废气流动方向贯穿有沟槽(3)并分为两个范围(B1、B2),废气流被导入第一范围(B1)的前端面(2),废气流在第一范围(B1)的后端面(5)处在被送入第二范围(B2)的一个端面(5)并在第二范围(B2)的另一端面(2)处流出,并且物体(4)在工作期间绕一个轴被回转,使沟槽(3)从第一范围(B1)换入第二范围(B2)。 The method of the exhaust gas flow of an internal combustion engine for processing, characterized in that a body (4) in the exhaust stream, the object (4) with a groove penetrating flow direction of exhaust (3) and is divided into two ranges ( B1, B2), the exhaust gas stream is introduced into a first range (B1), a front end face (2), the exhaust gas stream in a first range (B1), a rear end surface (5) is fed in a second range (B2) is end surface (5) and flows out the other end face of the second range (B2) is (2), and the object (4) during operation about a rotary shaft, of the trench (3) change from a first range (B1) the second range (B2).
25. 25. 按照权利要求24所述的方法,其特征在于,物体(4)以一个这样的速度绕其轴被回转,使通过废气流对第二范围(B2)的加热导致通过第一范围对废气流的加热。 The method according to claim 24, characterized in that the object (4) to such a speed around its rotation shaft, so that the exhaust gas stream through a second range (B2) is heated by a first range results in the exhaust gas stream heating.
26. 26. 按照权利要求24或25所述的方法,其特征在于,废气流的炭烟微粒滞留在一个设在第一范围(B1)的后端面(5)和第二范围(B2)的废气入口侧的端面(5)之间的过滤器(6)上并且转速如此地被选择,使温度界面的最大值大致上处在过滤器(6)处。 A method according to claim 24 or claim 25, characterized in that the soot particles in the exhaust gas flow retention provided at a rear end of the first range (B1), (5) and a second range (B2) of the exhaust gas inlet side filter (6) and the rotational speed being selected in such a way between the end faces (5), that the temperature of the interface at a substantially maximum at the filter (6).
27. 27. 按照权利要求24至26之一所述的方法,其特征在于,NOx的存储在物体的相应地涂有催化剂层的部分(T1)上被进行。 24. The method according to any one of claim 26, wherein, the NOx stored in the corresponding object is subjected to a coated portion (T1) of the catalyst layer.
28. 28. 按照权利要求27所述的方法,其特征在于,连续的还原所存储的NOx通过附加地加入还原剂进行。 The method according to claim 27, characterized in that the continuous reduction of NOx stored by the additional addition of a reducing agent.
29. 29. 用于对设计成NOx-存储催化器的、用于内燃机的废气后处理的、按以上权利要求之一所述的设备进行脱硫的方法,其特征在于,在开始脱硫时,在废气中的有害物质的量增加的同时,物体(4)的旋转被放慢或被中止,直至形成的温度最大值进入或通过第二范围(B2),特别是进入或通过第二范围(B2)的废气流出侧的端面(2)附近,物体(4)被回转,直至第二范围(B2)至少大部分地占据第一范围的位置,使温度最大值主要位于第一范围内并且旋转被中止,直到温度最大值起码进入第二范围(B2),补充喷射被减少并且物体(4)重新被回转。 NOx- designed for the storage catalytic converter, the exhaust gas treatment for internal combustion engines, the method according to any one of the preceding claims apparatus for desulfurization, wherein, at the start of desulphurization, in the exhaust gas of the harmful while increasing the amount of the substance, the object (4) of rotation is slowed down or suspended, until a maximum temperature into or through a second range (B2), in particular into or out of the second range (B2) in the exhaust gas end face side (2) close to the object (4) is turning, until at least the most part of the second range (B2) occupies a first range of positions, and that the maximum temperature is mainly located within a first range of rotation is suspended until the temperature at least into the second maximum range (B2), the post-injection is reduced and the object (4) are turned around again.
30. 30. 按照权利要求29所述的方法,其特征在于,放慢或中止回转被多次重复,直到物体(4)基本上脱了硫。 The method according to claim 29, characterized in that the rotation is slowed or discontinued repeated until the object (4) is substantially sulfur removal.
31. 31. 按照权利要求29或30所述的方法,其特征在于,物体(4)的连续回转在温度最大值大致处在两个范围(B1,B2)的交点处的情况下重新被进行。 A method according to claim 29 or claim 30, characterized in that the object (4) is substantially continuous rotation at a maximum temperature in the case where re at the intersection of two ranges (B1, B2) of.
CN 99809069 1998-07-31 1999-06-17 Method and device for post-treamtent of exhaust gases of an internal combustion engine CN1311844A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100387811C (en) 2003-08-29 2008-05-14 五十铃自动车株式会社 Exhaust gas purifying method and exhaust gas purifying system
CN100445524C (en) 2004-07-05 2008-12-24 丰田自动车株式会社 Control method and control device for exhaust gas control apparatus
CN105649728A (en) * 2016-01-06 2016-06-08 顾钰锋 Durable TWC

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974790A (en) 1998-03-05 1999-11-02 Ford Global Technologies, Inc. Catalytic converter decontamination method
GB2436077A (en) * 2006-03-18 2007-09-19 Ford Global Tech Llc An emission control device for an engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404965A (en) * 1964-11-13 1968-10-08 Benjamin P. Shiller Fume combustion apparatus
US4054417A (en) * 1976-12-23 1977-10-18 General Motors Corporation Regenerative-filter-incinerator device
US5362449A (en) * 1991-02-26 1994-11-08 Applied Regenerative Tech. Co., Inc. Regenerative gas treatment
FR2720488B1 (en) * 1994-05-24 1996-07-12 Inst Francais Du Petrole Rotary device heat transfer and thermal treatment applied to gaseous effluents.
JP2943641B2 (en) * 1994-12-21 1999-08-30 トヨタ自動車株式会社 An exhaust gas purification apparatus
GB9626290D0 (en) * 1996-12-18 1997-02-05 Ford Motor Co Method of de-sulphurating engine exhaust NOx traps

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100387811C (en) 2003-08-29 2008-05-14 五十铃自动车株式会社 Exhaust gas purifying method and exhaust gas purifying system
CN100445524C (en) 2004-07-05 2008-12-24 丰田自动车株式会社 Control method and control device for exhaust gas control apparatus
CN105649728A (en) * 2016-01-06 2016-06-08 顾钰锋 Durable TWC
CN105649728B (en) * 2016-01-06 2017-12-01 嵊州北航投星空众创科技有限公司 Durable TWC

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