200907165 九、發明說明： c發明所屬之技術領域3 本發明係關於一種用於再生機動車輛内燃機之廢氣後 處理系統之至少一部粒子黏聚機之方法。本發明亦係關於 5 —種具有内燃機及廢氣後處理系統之機動車輛，該廢氣後 處理系統係使用至少一不可連續再生之粒子黏聚機所形 成。就此方面而言，本發明特別係關於由行動内燃機例如 柴油引擎消除煙炱粒子。 【先前技術】 10 已知實質上含破之挾帶於廢氣流之粒子可利用也係於 廢氣後處理系統中所形成之二氧化氮(N 0 2)加熱燃燒或轉 化。用於此項目的，已知提供粒子黏聚機例如過爐器、粒 子分離器等，所挾帶的粒子至少暫時捕捉且積聚於其中。 於加熱再生過程中，粒子黏聚機係加熱至廢氣中所挾帶之 15奴使用氣開始轉化的程度（例如加熱至高於8〇〇。〇。用於此 項目的，例如可能用於燃燒器、加熱元件' 可電加熱過濾 器或烴類之放熱轉化反應皆可視為熱能的來源。相反地， 所謂粒子之連續再生轉化（所謂CRT方法）係基於含碳粒子 於低溫例如低於·。C溫度使用二氧化氮之轉化。用於此項 20 口目的£>知^引由引學所產生之廢氣通過氧化觸媒轉化 器，藉此氧化已經含於廢氣之氮氧化物，俾便可提供足量 二氧化氮用於煙炱粒子的轉化。二氧化氮對碳有高度親和 力’當二氧化氮接觸煙炱粒子時，常規形成二氧化碳及氮。 於已知方法及裝置中，有關可被動再生之粒子黏聚機 5 200907165 (CRT方法）’氧化被覆層係錄 來機上游提供或直接於 該被覆層經常含有—昂貴， 右屬k田而要有獲得更複雜的廢 處理裝置。 A錢理錢之額外廢氣 5 10 15 【發^明内容】 有鏗於此，本發明之一個目的為至 術所強調之問題。特別期望載明 ^先月』技 2之、心 之枝，财料敎許經過 修整之被動再生。此外，也期望栽 «Γ 3Κ JJ- it 種適&用於此種方 法之裝置，該裝置之特徵為低壓降 均首妒$夕h ^及於小型粒子（例如平 -U夕為奈米）之情況下具有特別高度效果。 此等目的可利用一種遵昭申 夕士、土 ％專利範圍第1項之特徵 之方法以及利用遵照申請專利範園 忐。弟10項之機動車輛來達 ^本务月之進-步優異實施例可於申請專利 專利_各項中個別列舉之特 明之進義之方式組合來強調本發 ΓΓ 。說明部分特別結合附圖說明本發明之 進—步具體實施例。 於用於再生-機動車輛之一内燃機之—廢氣處理系統 至>、-部粒子黏聚機之方法中，該内燃機係至少於一個 二相操作’因而於該廢氣中直接產生足夠確保於該至少 她子黏聚機中之含碳粒子的轉化。也 於執行該方法之機動車輛。 適口用 如此特別表示配置於内燃機後方之第一粒子黏聚機係 20 200907165 5 10 以此處所提示之方法再生。此處，可免除加熱再生，因此 由含碳粒子之轉化為低於4(m：或甚至低於聊C之7進 =子麵基本上可以過據器、粒子分離器或類:的 7裝置之形式形成詩暫時性捕捉粒子。⑽機較佳為 貧乏燃燒體，其巾峨主要係制過量”進行，諸如 柴油引擎或所謂之貧乏錄引擎。換言之，如此於此處提 不内燃引擎至少料個操作相（再生相操作），諸如於低負載 情況下操作’因此夠高比例之二氧化氮可藉内燃機直接生 成。「再生相」表示粒子黏聚機中之粒子質量減少之一段期 間，特別減少約至少2〇%，若屬適#減少約至少·重量比 或甚至至少約8G%重量比。内燃機組合相對應地調節之個 別機轉討論如下。就此方面而言，如此提*首先内燃機本 身係用作為粒子黏聚機之再生之氮氧化物來源，因此可免 除額外氮氧化物來源諸如上游氧化觸媒轉化器。 15 此處，一種方法為較佳，其中内燃機產生之二氧化氮 (N〇2)之比例係占全部氮氧化物(Ν〇χ)存在量之由乃π〗 至60 vol·-%。如此内燃機之燃燒實質情況特別係設定為二 氧化氮相對於全部所產生之氮氧化物之比例達到顯著範 圍，特別係大於30 vol.-。/。或甚至45 vol.-%(若屬適當此等比 2〇例同樣也可以考慮調整）。如此特別係有關於粒子黏 聚機進行再生之操作相期間之氧化氮比例。25 ν〇1·_%於此 處可視為下限及/或作為操作相期間之平均值。較佳也提示 一氧化氮比例實質上不超過6〇 ν〇1.-%俾便仍然可利用内燃 機產生足夠動力。 ” 7 200907165 根據該方法之精製方法，也提議達至該至少一部粒子 黏聚機，單純内燃機即可活化地產生二氧化氮(N〇2)。換言 之，如此表示特別於内燃機與該感興趣之粒子黏聚機之 間’廢氣後處理系統不具有任何裝置或措施來用於該廢氣 5之富含二氧化氮。因此本發明方法之裝置之設計特別簡 單，利用内燃機之相對應操作即可鎖定目標地再生粒子黏 聚機。當然於廢氣本身無法防止氧化還原過程，但經常不 適合用於獲彳于相對應之一氧化氮之活性顯著再生。 此外’該方法可進-步精製，允許於操作相進行循環 10入内燃機之廢氣流比例的增高。用於此項目的，廢氣後處 理系統例如係使用所謂之廢氣循環(EGR)進行，讓内燃機所 產生之廢氣(部分)再度供給内燃機，特別係於廢氣達到至少 -部粒子黏«之前供給。鎖定目標之廢氣循環速率的增 高可能導致廢氣中二氧化氮比例的顯著增高，藉此促進此 15處提示之再生。循環流速較佳係於至多60叩1._%之範圍， 特別係於由20 vol.-%至5〇 v〇l·-%之範圍。 根據該方法之一種精製方法，於内燃機中燃燒室溫度 之降低係於操作相進行。發現於燃燒過程中習知於廢氣產 生之咼比例二氧化氮係於相對低溫進行。特別以燃燒峰溫 20表示，用於此項目的之燃燒室溫度係調整於低於45〇t之範 圍。 此外也考慮較佳替代前文載明之可能或額外，内燃機 之進給壓力增高係於操作相進行。於此種情況下，廢氣後 處理系統例如係使用廢氣渴輪進給器進行結果導致進氣氣 200907165 的堅縮燃料'空氣混合物之進給壓力，換言之，内燃機 之燃燒室壓力方便地係於則至5G巴之範圍。用於再生 相I現在提示特別進給壓力升高到先前調節之進給壓力之 =少咖，若屬適當甚至25%。隨著進給壓力的升高，燃燒 5室内之燃燒峰溫以及因而氮氧化物之形成也受影響。 也可提高欲於操作相進行之内燃機之氧含量。如此， 例域燒係使用大為過量之空氣進行。燃料_空氣混合物中 ^乳含里例如提高至至少1%之數值，特別由i 〇5至^又之 fe圍（刀別約為1%氧及2%氧）。所謂之燃燒空氣比（入）為燃 、疋中實際使用之空氣質量m(空氣實際)相對於完全燃燒所需最 小化學計算學空氣質量叫空氣，化學計算學〕之比值。此項效應特 別暫時導致期望的生成二氧化氮。 用於丨里谷積之粒子黏聚機同等有效之含碳粒子的轉 化，也提示内燃機之操作方式使得廢氣中所產生之大部分 15含碳粒子具有平均直徑至多為細奈米㈣。内燃機特佳係 好均直徑至多為1()()奈米操作。基本上也適用於内燃機之 操作狀態，該操作狀態並非與用於再生粒子黏聚機之操作 相（再生相）相對應。極小型粒子可有利地使用所提供之二氧 化氮轉化來形成二氧化碳及元素氮。為了提供此種尺寸之 2〇粒子，特別需要燃燒室及廢氣管線出口配接因而避免粒子 黏聚至高於此處所載明之極限數值之大小。 也提示廢氣活性溫度增高係至少於操作相進行。如此 特別表示於廢氣後處理系統中之廢氣係與額外溫度增高裝 置接觸，因此最遲當該廢氣接觸欲被轉化的粒子時，廢氣 9 200907165 係與可有意地意圖用於進行該CRT方法之標稱溫度。溫度 升高裝置特別包含(未經被覆)之（電力操作之)加熱體，熱交 換器等。廢氣溫度經過鎖定目標或經過調節（非觸媒及/或觸 媒）增高，俾便改良於廢氣後處理系統令之一氧化氮的氧 5化，通常可導致CRT方法執行上之顯著優點，如此若屬適 宜甚至與此處所述本發明方法獨立無關。 10 15 20 根據本發明之又-面相，提議一種機動車辅，其具有 内燃機及廢氣後處理純形成有至少—部可連續再生之粒 子黏聚機為達至該至少—雜子料機之唯一 活性二氧蝴NQ2)來源，以及有至少—部粒子黏聚機作為 一次過濾器（也稱作為「半過濾器」）。 如此處提示之機動車輛特別可根據此處所述之根據本 發明方法操作，適當至少—部粒子姉機之非熱再生可於 期望之操作相進行。此處提^之機動車輛之特徵在於其廢 氣後處理系統之組成特別簡單，有相對應之内燃機控制結 果導致粒子《機可靠地再生，因而防止粒子黏聚機的阻 塞，且防止跨粒子黏聚機之壓力升_。 有關作為唯-（排他地）活性氮氧化物來源之内燃機之 配置組態’可„上參考“朗。至於此處提示之粒子 黏聚機|者包3一次流過璩器。該類型二次流過渡器之 特徵在於其①置多個廢氣之流徑，讓魏(理論上)可流經粒 子黏聚機而不會接觸過渡器材料或流_材。用於此項目 的’二次流過渡器之設計方式為蜂巢體形式，該蜂巢體係 具有導管壁至少部分係由不妓性㈣所製成且視需要也 10 200907165 包含過濾、介質。不透㈣料(較佳為片狀金屬膜)今日形成有 凸部，導引葉片至少部分關閉（或偏轉）導管，藉此獲得至少 部分廢氣流係朝向導管壁（或朝向過濾介質)偏轉。此處，凸 部之形成為凸部不會完全於任一點封閉導管，藉此允許二 次流之流過凸部。該類型二次流過濾器之一種可能設計例 如可從W〇〇1/8〇978A1或從WO 02/00326 A1收集，因此可 特別參考該等文件之說明。 10 15200907165 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a method for regenerating at least one particle cohesive machine of an exhaust gas aftertreatment system for an internal combustion engine of a motor vehicle. The present invention is also directed to a motor vehicle having an internal combustion engine and an exhaust aftertreatment system that is formed using at least one non-continuously regenerated particle cohesive machine. In this regard, the invention is particularly directed to the elimination of soot particles by a mobile internal combustion engine, such as a diesel engine. [Prior Art] 10 It is known that particles which are substantially contained in the exhaust gas stream can be burned or converted by nitrogen dioxide (N 0 2) which is also formed in the exhaust gas aftertreatment system. For this purpose, it is known to provide a particle cohesive machine such as a furnace, a particle separator, etc., in which the entrained particles are at least temporarily captured and accumulated therein. During the heating regeneration process, the particle cohesive machine is heated to the extent that the slaves in the exhaust gas start to convert using the gas (for example, heating to above 8 〇〇. 〇. For this project, for example, may be used in a burner Heating element 'Electrically heated filter or hydrocarbon exothermic conversion reaction can be regarded as a source of thermal energy. Conversely, the so-called continuous regeneration conversion of particles (so-called CRT method) is based on carbon-containing particles at low temperatures, for example, lower than C. The temperature is converted using nitrogen dioxide. For the purpose of this 20-port purpose, the exhaust gas generated by the introduction is passed through an oxidation catalyst converter, thereby oxidizing the nitrogen oxides already contained in the exhaust gas. Provides sufficient amount of nitrogen dioxide for the conversion of soot particles. Nitrogen dioxide has a high affinity for carbon. When nitrogen dioxide contacts soot particles, carbon dioxide and nitrogen are conventionally formed. In known methods and devices, the relevant methods can be passive. Regenerated particle cohesive machine 5 200907165 (CRT method) 'Oxidized coating system is provided upstream of the recording machine or often directly on the coating layer - expensive, right genus k field and has to obtain more complicated waste Processing device. A money to the extra waste gas 5 10 15 [Issues ^ content] Here, one of the purposes of the present invention is to emphasize the problem of the surgery. In particular, it is expected to include the first month of the skill 2 The branches and materials are passively regenerated after being trimmed. In addition, it is also expected to plant a device for this method, which is characterized by a low pressure drop of $ h h ^ and It has a particularly high effect in the case of small particles (for example, a flat-U eve is a nanometer). These objects can be utilized as a method of complying with the characteristics of the first item of the patent scope and the patent application.忐 忐 忐 弟 弟 弟 弟 机动 机动 机动 机动 机动 机动 机动 机动 机动 机动 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异 优异BRIEF DESCRIPTION OF THE DRAWINGS A further embodiment of the present invention is directed to a method for regenerative-engineering an internal combustion engine-exhaust gas treatment system to >, a particle cohesive machine, the internal combustion engine being at least one two-phase Operation 'and thus The exhaust gas directly produces a conversion sufficient to ensure the carbonaceous particles in the at least her sub-copolymer. Also in the motor vehicle performing the method. The palatability is particularly indicative of the first particle cohesive system 20 disposed behind the internal combustion engine. 200907165 5 10 Regenerated by the method suggested here. Here, the heating regeneration can be dispensed with, so the conversion of carbon-containing particles to less than 4 (m: or even lower than 7 C = sub-surface can basically pass , in the form of a device, a particle separator or a class of 7 devices to form a poetic temporary capture particle. (10) The machine is preferably a lean combustion body, the casing of which is mainly made in excess, such as a diesel engine or a so-called poorly recorded engine. In other words Thus, it is mentioned here that the internal combustion engine is at least one operating phase (regeneration phase operation), such as operating under low load conditions. Therefore, a sufficiently high proportion of nitrogen dioxide can be directly generated by the internal combustion engine. "Regeneration phase" means that the particle mass in the particle cohesive machine is reduced by a period of at least about 2%, especially if it is at least about a weight ratio or even at least about 8 G% by weight. The individual mechanisms for the corresponding adjustment of the internal combustion engine combination are discussed below. In this respect, it is mentioned that first the internal combustion engine itself is used as a source of nitrogen oxides for regeneration of the particle cohesive machine, thus eliminating the need for additional sources of nitrogen oxides such as upstream oxidation catalyst converters. 15 Here, a method is preferred in which the ratio of nitrogen dioxide (N〇2) produced by the internal combustion engine is from π to 60 vol·-% of the total amount of nitrogen oxides (Ν〇χ). In this case, the combustion of the internal combustion engine is in particular set to a significant range of the ratio of nitrogen dioxide to all of the nitrogen oxides produced, in particular greater than 30 vol. /. Or even 45 vol.-% (if appropriate, this can also be considered for adjustments). This is particularly the case for the proportion of nitrogen oxides during the operating phase of the particle agglomerator for regeneration. 25 ν〇1·_% can be regarded as the lower limit and/or as the average value of the operating phase. It is also preferred that the nitric oxide ratio does not substantially exceed 6 〇 ν 〇 1.-%, and the internal combustion engine can still generate sufficient power. 7 200907165 According to the refining method of the method, it is also proposed to reach the at least one particle cohesive machine, and the internal combustion engine can activately generate nitrogen dioxide (N〇2). In other words, this means that the internal combustion engine is particularly interested in The 'exhaust gas aftertreatment system' between the particle cohesive machines does not have any means or measures for the nitrogen dioxide-rich nitrogen dioxide. Therefore, the device of the method of the invention is particularly simple in design, and the corresponding operation of the internal combustion engine can be used. The target particle regenerative particle cohesive machine is locked. Of course, the exhaust gas itself cannot prevent the redox process, but it is often not suitable for obtaining a significant regeneration of the corresponding one of the nitrogen oxides. In addition, the method can be further refined, allowing The operating phase is cyclically increased in the proportion of the exhaust gas flow into the internal combustion engine. For this purpose, the exhaust gas aftertreatment system is carried out, for example, using so-called exhaust gas recirculation (EGR), so that the exhaust gas (partially) generated by the internal combustion engine is again supplied to the internal combustion engine, in particular It is supplied before the exhaust gas reaches at least the partial particle viscosity. The increase of the exhaust gas circulation rate of the locking target may result in exhaust gas. The proportion of nitrogen dioxide is significantly increased, thereby promoting the regeneration of the 15 tips. The circulation flow rate is preferably in the range of up to 60 叩 1..%, especially from 20 vol.-% to 5 〇v〇l· The range of -%. According to a refining method of the method, the decrease in the temperature of the combustion chamber in the internal combustion engine is carried out in the operating phase. It is found that the proportion of nitrogen dioxide generated in the combustion process is relatively low temperature. The combustion chamber temperature for this project is adjusted to be less than 45 〇t in terms of the peak temperature of combustion 20. It is also considered to be a better alternative to the above-mentioned possible or additional, the increase in the feed pressure of the internal combustion engine is based on the operation. In this case, the exhaust gas aftertreatment system, for example, uses the exhaust gas thirteen wheel feeder to cause the feed pressure of the compressed fuel 'air mixture of the intake air 200907165, in other words, the combustion chamber pressure of the internal combustion engine is conveniently It is then in the range of 5G bar. For the regeneration phase I now prompts that the special feed pressure rises to the previously adjusted feed pressure = less coffee, if appropriate, even 25%. As the feed pressure increases, The combustion peak temperature in the combustion chamber 5 and thus the formation of nitrogen oxides are also affected. It is also possible to increase the oxygen content of the internal combustion engine to be operated in the operating phase. Thus, the case burning system is carried out using a large excess of air. For example, the range of the milk content is increased to at least 1%, in particular from i 〇 5 to ^ and fe (the knife is about 1% oxygen and 2% oxygen). The so-called combustion air ratio (in) is burning, The ratio of the air mass m (actual air) actually used in the crucible to the minimum stoichiometric air mass required for complete combustion is called air, stoichiometry. This effect particularly temporarily leads to the desired formation of nitrogen dioxide. The conversion of the equally effective carbonaceous particles by the Liguchi particle cohesive machine also suggests that the internal combustion engine operates in such a way that most of the 15 carbonaceous particles produced in the exhaust gas have an average diameter of at most fine nanometers (four). The excellent internal combustion engine has a good average diameter of at most 1 () () nanometer operation. Basically, it is also applicable to the operating state of the internal combustion engine, which does not correspond to the operating phase (regeneration phase) used for the regenerated particle cohesive machine. Very small particles can advantageously be used to form carbon dioxide and elemental nitrogen using the provided nitrogen dioxide conversion. In order to provide 2 〇 particles of this size, it is particularly desirable to match the combustion chamber and the exhaust gas line outlets to avoid particle cohesion to a level above the limit values stated herein. It is also suggested that the increase in exhaust gas activity temperature is at least in the operating phase. Thus, it is particularly indicated that the exhaust gas in the exhaust gas aftertreatment system is in contact with the additional temperature increasing device, so that when the exhaust gas contacts the particles to be converted at the latest, the exhaust gas 9 200907165 is delineated and can be intentionally intended to carry out the CRT method. Weigh the temperature. The temperature riser particularly includes (uncovered) heaters (electrically operated), heat exchangers, and the like. The temperature of the exhaust gas is increased by the locking target or adjusted (non-catalytic and/or catalytic), and the helium is improved in the exhaust gas after-treatment system to make the oxygenation of one of the nitrogen oxides, which usually leads to significant advantages in the execution of the CRT method. If appropriate, it is even independent of the method of the invention described herein. 10 15 20 According to the re-face phase of the present invention, a motor vehicle auxiliary is proposed which has an internal combustion engine and an exhaust gas after-treatment, and a particle cohesing machine which is formed at least partially continuously regenerated is the only one capable of achieving the at least one miscellaneous material machine Source of active dioxin NQ2), and at least a particle cohesive machine as a primary filter (also known as a "half filter"). The motor vehicle as suggested herein can be operated in accordance with the method of the present invention as specifically described herein, and at least the non-thermal regeneration of the particle granules can be carried out in the desired operational phase. The motor vehicle mentioned here is characterized in that the composition of the exhaust gas aftertreatment system is particularly simple, and the corresponding internal combustion engine control results in the particle "machine reliably regenerating, thereby preventing the blockage of the particle cohesive machine and preventing cross-particle cohesion. The pressure of the machine rises _. The configuration of an internal combustion engine as a source of exclusive-(exclusively) active nitrogen oxides can be referred to as "Lon". As for the particle cohesive machine presented here, the package 3 flows through the device once. This type of secondary flow transitioner is characterized in that it has a flow path of a plurality of exhaust gases so that Wei (theoretically) can flow through the particle cohesive machine without contacting the transition material or the flow material. The 'secondary flow transitioner' for this project is designed in the form of a honeycomb body having a conduit wall that is at least partially made of non-defective (four) and optionally contained 10 200907165 containing filtration and media. The impervious (four) material (preferably a sheet metal film) is formed with a projection which at least partially closes (or deflects) the conduit, whereby at least a portion of the exhaust gas stream is deflected toward the conduit wall (or toward the filter medium). Here, the convex portion is formed such that the convex portion does not close the catheter at any point, thereby allowing the secondary flow to flow through the convex portion. One possible design of this type of secondary flow filter can be collected, for example, from W〇〇1/8〇978A1 or from WO 02/00326 A1, so the description of the documents can be specifically referred to. 10 15
根據機動車輛之一種較佳實施例變化，該至少一部粒 子黏聚機於該錢流之流動方向，包含至少-個第一區段 及第—區段，該第二區段係延伸至下游端側，及該第二區 段包含氧化觸媒轉化器。如此特別表錄子黏聚機可^ 成為至/兩個區段’其係於軸向方向延伸，且延伸通過粒 黏聚機之王個截面’下游區段延伸至粒子黏聚機之下游 端且設置有氧化簡轉化器。此處，該第-區段較佳為觸 媒純性，表示不含被覆層。氧化觸媒轉化器例如可 含高級攙雜金屬之洗塗被覆之方式形成。 ° 圖式簡單說明 >現在將基於附圖說明本發明及技術領域之進—步細 即。須注意此處舉例說明本發明之較佳實施例之變化 仁本發明非僅囿限於此。於附圖中♦· 第1圖顯7F機動車輕之廢氣後處理线之第—實施例， 次第2圖顯示於内燃機操作期間二氧化氮漠度之可能輪 第3圖顯示優異之粒子黏«之組成細節及According to a preferred embodiment of the motor vehicle, the at least one particle cohesive machine comprises at least one first segment and a first segment in a flow direction of the money flow, the second segment extending downstream The end side, and the second section comprise an oxidation catalyst converter. Such a special table cohesive machine can be made into / two sections 'which extend in the axial direction and extend through the king section of the particle cohesive machine' downstream section to the downstream end of the particle cohesive machine And an oxidation simple converter is provided. Here, the first segment is preferably a catalyst-pure property, indicating that the coating layer is not contained. The oxidizing catalyst converter can be formed, for example, by a washcoat coating of a high level doping metal. ° BRIEF DESCRIPTION OF THE DRAWINGS > The present invention and the technical field will now be described based on the drawings. It is to be noted that variations of the preferred embodiments of the invention are illustrated herein. The invention is not limited thereto. In the drawing, ♦· The first figure shows the first embodiment of the 7F motor vehicle exhaust gas aftertreatment line, and the second figure shows the possible wheel of the nitrogen dioxide inversion during the operation of the internal combustion engine. Composition details and
II 200907165 第4圖顯不粒子黏聚機之又一實施例之刳面圖。 t實施方式3 較佳實施例之詳細說明 第1圖意圖不意顯示機動車輛4之内燃機3之廢氣後處 5理系統2，該設計基本上適合用於執行此處所述方法。因此 機動車輛4首先為内燃機3，特別為柴油引擎，其具有多個 燃燒室21，所供給之燃料-空氣混合物係於該燃燒室内燃 燒，且由其中，廢氣經由通風管線19排放至大氣。 此處顯示一種廢氣後處理系統2 ,其於流動方向7於内 10燃機3之下游具有純循環分幻2，使得部分純流可以經 過調節之方式再度供給内燃機3之燃燒室21。於流動方向7 該方向之進一步下游顯示一粒子黏聚機〖。後者之進一步下 游接著渦輪進給器13，其中當廢氣流經該渦輪進給器13時 渦輪同時被驅動，渦輪壓縮空氣量經由進氣管路2〇供給内 15 燃機3。 於流動方向7，廢氣現在已經進一步流經通風管線19， 例如流至機動車輛4之本體下方區域後，該廢氣利用額外廢 氣後處理單元24進一步去除污染物。於此處舉例說明之情 況下，於流動方向7，廢氣流經氧化觸媒轉化器u、過淚器 20 22及SCR觸媒轉化器23(用於氮氧化物之選擇性觸媒反 應），廢氣於SCR觸媒轉化器23上游與利用相對應之添加還 原劑25所導入之還原劑混合。藉此方式經純化且經轉化之 廢氣最終流經通風管線19而進入環境中。 此處所示廢氣後處理系統2之組成結構特別允許粒子 12 200907165 黏聚機1使用藉内燃機3以乾定方式所提供之二氧化氮而非 連續地把定地再生。 第2圖示意顯示且舉例說明藉内燃機所產生之用於再 生粒子黏聚機之廢氣中之二氧化氮濃度之輪廓資料。此處 寺頁座標30表示時間，而縱座標31表示實質上氮氧化物濃度。 10 15 \ 20 有關第一輪廓資料26，可知於内燃機3之操作期間，二 氧化氮濃度大半係配置於預定再生範圍28下方，若現在進 行粒子黏聚機之再生，則廢氣中之二氧化氮濃度係利用内 燃機之再生相29或操作相調整，使得該濃度係於再生範圍 28。若需要改變内燃機(例如動力需求、負載範圍…)或欲結 束粒子黏聚機之再生，則内燃機3可再度使用廢氣中之相對 低二氧化氮比例操作。藉此可進行非連續的且於預先界… 的及/或經過計算之時間之粒子黏聚機之非加熱再生。 此外，廢氣中之二氧化氮比例基本上可經調整， 比例係以常規間隔及/或永久性位於再生範圍Μ區域 由虛線表示之第二輪廓資料27舉例說明。 特別 第3圖顯示粒子黏聚機丨之變化例之細節。粒子黏只 係使用呈金屬非織物形式之實質上光滑超細線網層$機1 成，於各層間設置結構化金屬鉑14,因而形成導管b所形 官16係於流動方向7延伸或順著粒子黏聚機〖之對應輛導 延伸。於導管I6内部，利用於金屬如4中之導引S'2方向 成導管窄點17 ’該導管窄點17造成流向超細線層^而形 流的(部分)偏轉。此處導管窄點η或導引面32之廢氣 得導管16*會完全被封閉，反而仍然允a =式使 —-人 >爪33之流 13 200907165 動。結果金屬始14向上豎起，形成一通道開口 is，其允許 廢氣通過至相鄰的導管16。 此外，第3圖顯不含有二氧化氮(N〇2)、碳(〇及氧(〇2) 之廢氣進入粒子黏聚機b於此處開始於其中所含之含碳粒 5子5與二氧化氮轉化，讓—氧化氮(NO)、氮(N2)-二氧化碳 (C〇2)及氧(〇2)最終再度離開粒子黏聚機丨。利用粒子黏聚機 1，氮氧化物與煙炱粒子之反應機率顯著增高，因此可實現 相對咼之轉化速率，廢氣之壓力損耗小，可靠地防止粒子 黏聚機的阻塞。 1〇 帛4圖顯不粒子黏聚機卜於流動方向7，首先具有第- 區段8隨後為第二區段9延伸至後端側1〇。粒子黏聚機1之全 長係以光滑超細線層15及經結構化之金屬始14所形成，於 相鄰導管！6中，該等金屬銷14具有交替（相對配置排列)之錐 型導管窄點17，其同時允許二次流33之流過，且激起部分 15廢氣朝向光滑超細線層15。藉此方式，粒子$較佳為具有直 徑為小於200奈米之好積聚•子㈣^之壁（或光滑 超細線層15)内或上且利用所提供之二氧化氣轉化。此處第 一區段8不含氧化活性被覆層，而第二區段9利用相對應設 置之氧化觸媒轉化器11，再度於原位產生新製的氮氧化物 20用於後方部分之粒子黏聚機的再生。 當然，可未惊離此處說明之本發明H 處提示之系統作出多項修改。也可使用其他粒子黏聚機， 但也可將粒子黏聚機卜例如設置於渦輪進給器之下游。 下游廢氣後處理單元24也可以任—種期望之方式組合及補 14 200907165 充。此外，本發明也可用於其他内燃機例如直接喷射式火 星點火引擎。 L圖式簡單說明3 第1圖顯示機動車輛之廢氣後處理系統之第一實施例， 5 第2圖顯示於内燃機操作期間二氧化氮濃度之可能輪 廊資料’ 第3圖顯示優異之粒子黏聚機之組成細節及 第4圖顯示粒子黏聚機之又一實施例之剖面圖。 【主要元件符號說明】 1...粒子黏聚機 18...通道開口 2...廢氣後處理系統 19...通風管線 3...内燃機 20...完好導管 4...機動車輛 21...燃燒室 5...粒子 22...過濾器 6…直徑 23...SCR觸媒轉化器 7...流動方向 24...處理後廢氣單元 8...第一區段 25...還原劑之添加 9...第二區段 26...第一輪廓資料 10...端側 27...第二輪廓資料 11...氧化觸媒轉化器 28...再生範圍 12...廢氣循環 29...再生相 13...渦輪進給器 30...橫座標 14...金屬馆 31...縱座標 15...超細線層 32...導引面 16.. .導管 17.. .導管窄點 33...二次流 15II 200907165 Figure 4 shows a side view of yet another embodiment of a particle cohesive machine. t. Embodiment 3 Detailed Description of the Preferred Embodiments Fig. 1 is intended to show the exhaust system of the internal combustion engine 3 of the motor vehicle 4, which is basically suitable for carrying out the method described herein. The motor vehicle 4 is firstly an internal combustion engine 3, in particular a diesel engine, having a plurality of combustion chambers 21 into which the supplied fuel-air mixture is combusted, and from which the exhaust gases are discharged to the atmosphere via the vent line 19. Here, an exhaust gas aftertreatment system 2 is shown which has a pure cycle fraction 2 downstream of the internal combustion engine 3 in the flow direction 7 so that a partial pure flow can be supplied to the combustion chamber 21 of the internal combustion engine 3 again by means of regulation. In the direction of flow 7 further downstream of this direction shows a particle cohesive machine. The latter further travels downstream of the turbine feeder 13, wherein the turbine is simultaneously driven as the exhaust gas flows through the turbine feeder 13, and the amount of turbine compressed air is supplied to the internal combustion engine 3 via the intake line 2. In the flow direction 7, the exhaust gas has now flowed further through the vent line 19, for example to the area below the body of the motor vehicle 4, which further removes the contaminants by means of an additional exhaust aftertreatment unit 24. In the case illustrated herein, in the flow direction 7, the exhaust gas flows through the oxidation catalyst converter u, the tears 20 22 and the SCR catalyst converter 23 (for the selective catalyst reaction of nitrogen oxides), The exhaust gas is mixed upstream of the SCR catalyst converter 23 with a reducing agent introduced by the corresponding addition of the reducing agent 25. The purified and converted off-gas in this manner ultimately flows through the vent line 19 into the environment. The composition of the exhaust gas aftertreatment system 2 shown here specifically allows the particles 12 200907165. The cohesive machine 1 uses the nitrogen dioxide supplied by the internal combustion engine 3 in a dry manner instead of continuously regenerating the ground. Figure 2 is a schematic representation and illustration of profile data for the concentration of nitrogen dioxide in the exhaust gas produced by the internal combustion engine for the regenerated particle cohesive machine. Here, the temple page coordinates 30 indicate time, and the ordinate coordinates 31 indicate substantially nitrogen oxide concentration. 10 15 \ 20 Regarding the first profile data 26, it can be seen that during the operation of the internal combustion engine 3, most of the nitrogen dioxide concentration is disposed below the predetermined regeneration range 28. If the regeneration of the particle cohesive machine is now performed, the nitrogen dioxide in the exhaust gas is The concentration is adjusted using the regeneration phase 29 or operating phase of the internal combustion engine such that the concentration is within the regeneration range 28. If it is desired to change the internal combustion engine (e.g., power demand, load range...) or to regenerate the particle cohesive machine, the internal combustion engine 3 can be operated again using a relatively low proportion of nitrogen dioxide in the exhaust gas. This allows for non-heated regeneration of the particle cohesive machine that is discontinuous and pre-defined and/or calculated. Further, the proportion of nitrogen dioxide in the exhaust gas can be substantially adjusted, and the ratio is exemplified by the second contour data 27 indicated by a broken line at a regular interval and/or permanently located in the regeneration range. Special Fig. 3 shows details of variations of the particle cohesive machine. The particle sticking is formed by using a substantially smooth ultra-fine wire mesh layer in the form of a metal non-woven fabric, and a structured metal platinum 14 is disposed between the layers, thereby forming a conduit 16 which is formed in the flow direction 7 to extend or follow the flow direction 7 The particle cohesive machine 〖 corresponds to the guide extension. Inside the conduit I6, the guide S'2 direction in the metal such as 4 is used to form a conduit narrow point 17' which causes the (partial) deflection of the flow to the ultrafine line layer. Here, the conduit narrow point η or the exhaust surface of the guide surface 32 is completely closed by the conduit 16*, but still allows a = a person to move the flow of the claws 33 200907165. As a result, the metal start 14 is erected upward to form a passage opening is which allows exhaust gas to pass to the adjacent duct 16. In addition, Figure 3 shows that the exhaust gas containing no nitrogen dioxide (N〇2) and carbon (〇 and oxygen (〇2) enters the particle cohesive machine b where it starts with the carbonaceous particles 5 contained therein and Nitrogen dioxide conversion, let nitrogen oxide (NO), nitrogen (N2)-carbon dioxide (C〇2) and oxygen (〇2) finally leave the particle cohesive machine again. Using particle cohesive machine 1, nitrogen oxides and The reaction probability of the soot particles is significantly increased, so that the conversion rate of the relative enthalpy can be achieved, the pressure loss of the exhaust gas is small, and the blockage of the particle cohesive machine is reliably prevented. 1 〇帛 4 shows the particle-free cohesive machine in the flow direction 7 First, having a first segment 8 and then a second segment 9 extending to the rear end side 1〇. The full length of the particle cohesive machine 1 is formed by a smooth ultrafine wire layer 15 and a structured metal start 14 In the adjacent conduits! 6, the metal pins 14 have alternating (relatively arranged) tapered conduit narrow points 17, which simultaneously allow the flow of secondary flow 33, and the agitating portion 15 of the exhaust gases toward the smooth ultrafine wire layer 15. In this way, the particle $ is preferably a wall having a good accumulation of a diameter of less than 200 nm (a) (or a smooth ultra-fine layer) 15) In or above and using the supplied dioxide gas conversion. Here the first section 8 does not contain an oxidation active coating layer, and the second section 9 utilizes the corresponding oxidation catalyst converter 11 to re-establish the original The new generation of nitrogen oxides 20 is used for the regeneration of the particle cohesive machine in the rear portion. Of course, many modifications may be made to the system of the present invention indicated at H herein. Other particle cohesive machines may also be used. However, the particle cohesive machine can also be disposed downstream of the turbine feeder, for example. The downstream exhaust gas aftertreatment unit 24 can also be combined and supplemented in any desired manner. In addition, the present invention can also be applied to other internal combustion engines. For example, a direct injection Mars ignition engine. A simple description of the L diagram. Figure 1 shows a first embodiment of an exhaust gas aftertreatment system for a motor vehicle. 5 Figure 2 shows the possible data of the concentration of nitrogen dioxide during operation of the internal combustion engine. Fig. 3 shows the composition details of the excellent particle cohesive machine and Fig. 4 shows a cross-sectional view of another embodiment of the particle cohesive machine. [Main component symbol description] 1...particle cohesive machine 18...channel Port 2... exhaust gas aftertreatment system 19... ventilation line 3... internal combustion engine 20... intact conduit 4... motor vehicle 21... combustion chamber 5... particle 22... filter 6 ...diameter 23...SCR catalyst converter 7...flow direction 24...after treatment of exhaust gas unit 8...first section 25...addition of reducing agent 9...second section 26 ...first profile data 10...end side 27...second profile data 11...oxidation catalyst converter 28...regeneration range 12...exhaust gas cycle 29...regeneration phase 13. .. Turbine feeder 30...Annivity 14...Metal Hall 31...Angularity 15...Ultra-fine layer 32...Guiding surface 16..Conduit 17...Conduit narrow point 33...secondary flow 15