JP2018112183A - Exhaust gas aftertreatment system and internal combustion engine - Google Patents

Exhaust gas aftertreatment system and internal combustion engine Download PDF

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JP2018112183A
JP2018112183A JP2017200893A JP2017200893A JP2018112183A JP 2018112183 A JP2018112183 A JP 2018112183A JP 2017200893 A JP2017200893 A JP 2017200893A JP 2017200893 A JP2017200893 A JP 2017200893A JP 2018112183 A JP2018112183 A JP 2018112183A
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exhaust gas
inlet side
aftertreatment system
gas inlet
blowing
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JP7001420B2 (en
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メフメト・コスクン・ベイダック
Coskun Baydak Mehmet
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MAN Energy Solutions SE
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MAN Diesel and Turbo SE
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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
    • F01N3/30—Arrangements for supply of additional air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • F01N13/017—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
    • 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
    • F01N3/05—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 air, e.g. by mixing exhaust with air
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
    • 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
    • F01N2270/00—Mixing air with exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/10—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for stationary applications
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a new type of exhaust gas aftertreatment system for an internal combustion engine, and an internal combustion engine having the exhaust gas aftertreatment system.SOLUTION: An exhaust gas aftertreatment system for an internal combustion engine, in particular with a catalytic converter 1, in particular an SCR exhaust gas aftertreatment system with an SCR catalytic converter. The catalytic converter 1 comprises a plurality of catalyst modules 2, an exhaust gas inlet side 5 and an exhaust gas outlet side 13, and has an expelling device 7 through which soot can be blown off the exhaust gas inlet side 5 of the catalytic converter 1, i.e., off exhaust gas inlet sides 6 of the catalyst modules 2. A tube 8 having a plurality of expelling openings 9, 10 extends along the exhaust gas inlet side 5 of the catalytic converter 1, across the plurality of catalyst modules 2 with a predetermined distance from the exhaust gas inlet side 5. Air may be sprayed through each of the expelling openings 9, 10 on the exhaust gas inlet side 6 of at least one of the catalyst modules 2 in any case.SELECTED DRAWING: Figure 1

Description

本発明は、内燃エンジンの排ガス後処理システムに関する。本発明はさらに、排ガス後処理システムを有する内燃エンジンに関する。   The present invention relates to an exhaust gas aftertreatment system for an internal combustion engine. The invention further relates to an internal combustion engine having an exhaust gas aftertreatment system.

例えばパワープラントで用いられる固定内燃エンジンでの燃焼プロセス、および例えば船舶に用いられる非固定内燃エンジンでの燃焼プロセスでは、窒素酸化物が、生じ、これらの窒素酸化物は典型的には、石炭、坑口炭、褐炭、鉱油またはディーゼル燃料などの硫黄を含む化石燃料の燃焼中に生じる。このため、そのような内燃エンジンは、清掃、特に内燃エンジンから出る排ガスの脱窒に役立つ排ガス後処理システムを割り当てられる。   For example, combustion processes on fixed internal combustion engines used in power plants and non-fixed internal combustion engines used on ships, for example, produce nitrogen oxides, which are typically coal, Occurs during combustion of fossil fuels containing sulfur such as wellhead coal, lignite, mineral oil or diesel fuel. For this reason, such an internal combustion engine is assigned an exhaust gas aftertreatment system which serves for cleaning, in particular for denitrification of the exhaust gas leaving the internal combustion engine.

排ガス中の窒素酸化物を還元するために、いわゆるＳＣＲ触媒コンバータが主に、慣習から知られている排ガス後処理システムに用いられる。ＳＣＲ触媒コンバータでは、窒素酸化物の選択的触媒還元が、行われ、窒素酸化物の還元のために、還元剤としてのアンモニア（ＮＨ３）が、必要とされる。アンモニア（ＮＨ３）または例えば尿素などのアンモニア前駆物質が、この目的のためにＳＣＲ触媒コンバータの上流に液体形態で排ガス中に導入され、アンモニアまたはアンモニア前駆物質は、ＳＣＲ触媒コンバータの上流で排ガスと混合される。この目的を達成するために、アンモニアまたはアンモニア前駆物質の導入部とＳＣＲ触媒コンバータとの間の混合セクションが、慣習に従って提供される。 In order to reduce the nitrogen oxides in the exhaust gas, so-called SCR catalytic converters are mainly used in exhaust gas aftertreatment systems known from practice. In the SCR catalytic converter, selective catalytic reduction of nitrogen oxides is performed, and ammonia (NH 3 ) as a reducing agent is required for the reduction of nitrogen oxides. For this purpose, ammonia (NH 3 ) or an ammonia precursor such as urea is introduced into the exhaust gas in liquid form upstream of the SCR catalytic converter for this purpose, and ammonia or ammonia precursor is separated from the exhaust gas upstream of the SCR catalytic converter. Mixed. To achieve this goal, a mixing section between the introduction of ammonia or ammonia precursor and the SCR catalytic converter is provided according to convention.

ＳＣＲ触媒コンバータは、典型的にはお互いの上部にかつ互いの隣に複数の列および行の形でアレイ状に配置される複数の触媒モジュールを備える。そのようなＳＣＲ触媒コンバータを介して導かれるべき排ガスは、ＳＣＲ触媒コンバータまたは触媒モジュールの排ガス入口側を介してＳＣＲ触媒コンバータまたは触媒モジュールに流れ込み、排ガス出口側を介してＳＣＲ触媒コンバータまたは触媒モジュールから出る。   An SCR catalytic converter typically comprises a plurality of catalyst modules arranged in an array in the form of a plurality of columns and rows on top of each other and next to each other. The exhaust gas to be led through such an SCR catalytic converter flows into the SCR catalytic converter or catalyst module via the exhaust gas inlet side of the SCR catalytic converter or catalyst module, and from the SCR catalytic converter or catalyst module via the exhaust gas outlet side. Get out.

排ガスに含まれる煤は、ＳＣＲ触媒コンバータまたは触媒モジュールの排ガス入口側に積もり、ＳＣＲ触媒コンバータまたは触媒モジュールの目詰まりにつながることもある。排ガス入口側の領域での煤の蓄積に対抗するために、排ガス後処理システムが、ＳＣＲ触媒コンバータに割り当てられた吹き出し装置を備え、それを介して煤が、ＳＣＲ触媒コンバータの排ガス入口側から、すなわち触媒モジュールの排ガス入口側から吹き飛ばされることが可能であるということは、すでに提示されている。慣習から知られている吹き出し装置はしかしながら、触媒コンバータの排ガス入口側からまたは触媒モジュールの排ガス入口側からの煤の不十分な除去を可能にするだけである。従って、煤が、触媒コンバータの排ガス入口側または触媒モジュールの排ガス入口側からより効果的に吹き飛ばされることが可能である、排ガス後処理システムの必要性がある。   Soot contained in the exhaust gas accumulates on the exhaust gas inlet side of the SCR catalytic converter or catalyst module, and may lead to clogging of the SCR catalytic converter or catalyst module. In order to counter the accumulation of soot in the region on the exhaust gas inlet side, the exhaust gas aftertreatment system comprises a blowing device assigned to the SCR catalytic converter, through which soot is from the exhaust gas inlet side of the SCR catalytic converter, That is, it has already been suggested that it can be blown off from the exhaust gas inlet side of the catalyst module. The blow-out devices known from the practice, however, only allow insufficient removal of soot from the exhaust gas inlet side of the catalytic converter or from the exhaust gas inlet side of the catalyst module. Therefore, there is a need for an exhaust gas aftertreatment system that allows soot to be blown off more effectively from the exhaust gas inlet side of the catalytic converter or from the exhaust gas inlet side of the catalyst module.

触媒コンバータの排ガス入口側に煤が積もるという上記の問題は、特にＳＣＲ触媒コンバータについて起こるが、本発明は、ＳＣＲ触媒コンバータを有する排ガス後処理システムに限定されない。煤はまた、他の触媒コンバータでの排ガス入口側に積もることもあり、それは次いで、吹き出し装置によって吹き飛ばされなければならないことになる。   Although the above problem that soot accumulates on the exhaust gas inlet side of the catalytic converter occurs particularly in the SCR catalytic converter, the present invention is not limited to the exhaust gas aftertreatment system having the SCR catalytic converter. The soot may also accumulate on the exhaust gas inlet side in other catalytic converters, which then must be blown away by the blower.

これから出発して、本発明は、内燃エンジンの新型排ガス後処理システムおよびそのような排ガス後処理システムを有する内燃エンジンを作り出すという目的に基づいている。   Starting from this, the present invention is based on the object of creating a new exhaust gas aftertreatment system for an internal combustion engine and an internal combustion engine having such an exhaust gas aftertreatment system.

この目的は、請求項１に記載の排ガス後処理システムを通じて解決される。本発明によると、複数の吹き出し開口を有する少なくとも１つのチューブが、排ガス入口側から所定の距離を有して複数の触媒モジュールを横断する触媒コンバータの排ガス入口側に沿って延び、各吹き出し開口を介して、空気が、いずれの場合にも少なくとも１つの触媒モジュールの排ガス入口側に吹き付けられてもよい。本発明は、触媒コンバータの排ガス入口側または触媒モジュールの排ガス入口側からの煤の効果的な吹き飛ばしを可能にする。   This object is solved through an exhaust gas aftertreatment system according to claim 1. According to the present invention, at least one tube having a plurality of blowing openings extends along the exhaust gas inlet side of the catalytic converter that crosses the plurality of catalyst modules at a predetermined distance from the exhaust gas inlet side, and Thus, air may be blown to the exhaust gas inlet side of at least one catalyst module in any case. The present invention enables effective blowing of soot from the exhaust gas inlet side of the catalytic converter or the exhaust gas inlet side of the catalyst module.

有利なさらなる展開によると、空気は、いずれの場合にも目標とされる仕方で触媒モジュールの１つの排ガス入口側に各吹き出し開口を介して吹き付けられてもよい。これによって、煤が、各触媒モジュールから効果的に吹き飛ばされることが可能であるということを確実にすることができる。   According to an advantageous further development, air may be blown through each outlet opening on one exhaust inlet side of the catalyst module in any way in a targeted manner. This can ensure that the soot can be effectively blown from each catalyst module.

有利なさらなる展開によると、複数の触媒モジュールについてのチューブは、いずれの場合にも複数の触媒モジュール個々の吹き出し開口を備え、それらを介して、優先的には吹き出し角および／または直径に関して異なる吹き出し開口を介して、空気が、それぞれの触媒モジュールの排ガス入口側に吹き付けられてもよい。吹き出し開口はまた、チューブの軸方向に見られるオフセットがあってもよい。これによって、煤は、各触媒モジュールから、すなわち各触媒モジュールの排ガス入口側から特に効果的に吹き飛ばされることが可能である。   According to an advantageous further development, the tubes for the plurality of catalyst modules comprise in each case a plurality of catalyst module individual outlet openings, through which the outlets differ preferentially with respect to the outlet angle and / or diameter. Air may be blown to the exhaust gas inlet side of each catalyst module through the opening. The blowout opening may also have an offset seen in the axial direction of the tube. Thereby, soot can be blown off particularly effectively from each catalyst module, ie from the exhaust gas inlet side of each catalyst module.

有利なさらなる展開によると、それぞれのチューブは、空気がそれらを介して、それぞれのチューブの第１の側に向かって位置決めされる触媒モジュールの排ガス入口側に吹き付けられてもよい、吹き出し開口、および空気がそれらを介して、それぞれのチューブの第２の側に向かって位置決めされる触媒モジュールの排ガス入口側に吹き付けられてもよい、さらなる吹き出し開口を備える。これによって、触媒コンバータの排ガス入口側からまたは触媒モジュールの排ガス入口側からの煤の効果的な吹き飛ばしが、コンパクト設計を用いて可能である。   According to an advantageous further development, each tube may be blown to the exhaust gas inlet side of the catalyst module through which air is positioned towards the first side of the respective tube, and There are further blow-off openings through which air may be blown to the exhaust gas inlet side of the catalyst module positioned towards the second side of the respective tube. Thereby, effective blowing of soot from the exhaust gas inlet side of the catalytic converter or from the exhaust gas inlet side of the catalyst module is possible using a compact design.

本発明による内燃エンジンは、請求項１２に規定される。   An internal combustion engine according to the invention is defined in claim 12.

好ましいさらなる展開は、従属項および下記の記述から得られる。本発明の例となる実施形態は、これに限定されることなく図面によってより詳細に説明される。   Preferred further developments result from the dependent claims and the following description. Exemplary embodiments of the present invention are described in more detail by means of the drawings without being limited thereto.

吹き出し装置と一緒の内燃エンジンの本発明による排ガス後処理システムの触媒コンバータの斜視図である。1 is a perspective view of a catalytic converter of an exhaust gas aftertreatment system according to the invention for an internal combustion engine together with a blowing device. FIG. 触媒コンバータの触媒モジュールの領域での第１の排ガス後処理システムの詳細図である。It is a detailed view of the first exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第１の排ガス後処理システムの詳細図である。It is a detailed view of the first exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第１の排ガス後処理システムの詳細図である。It is a detailed view of the first exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第１の排ガス後処理システムの詳細図である。It is a detailed view of the first exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第２の排ガス後処理システムの詳細図である。It is a detailed view of the second exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第２の排ガス後処理システムの詳細図である。It is a detailed view of the second exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第２の排ガス後処理システムの詳細図である。It is a detailed view of the second exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第２の排ガス後処理システムの詳細図である。It is a detailed view of the second exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第３の排ガス後処理システムの詳細図である。It is a detailed view of the third exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第３の排ガス後処理システムの詳細図である。It is a detailed view of the third exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第３の排ガス後処理システムの詳細図である。It is a detailed view of the third exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. 触媒コンバータの触媒モジュールの領域での第３の排ガス後処理システムの詳細図である。It is a detailed view of the third exhaust gas aftertreatment system in the area of the catalyst module of the catalytic converter. さらなる排ガス後処理システムの詳細図である。It is a detailed view of a further exhaust gas aftertreatment system. さらなる排ガス後処理システムの詳細図である。It is a detailed view of a further exhaust gas aftertreatment system.

本発明は、内燃エンジン、例えばパワープラントでの固定内燃エンジンまたは船舶に用いられる非固定内燃エンジンの排ガス後処理システムに関する。特に、排ガス後処理システムは、重質燃料油を用いて運転される船舶のディーゼル内燃エンジンに用いられる。   The present invention relates to an exhaust gas aftertreatment system for an internal combustion engine, for example, a fixed internal combustion engine in a power plant or a non-fixed internal combustion engine used in a ship. In particular, exhaust gas aftertreatment systems are used in marine diesel internal combustion engines that are operated using heavy fuel oil.

図１は、触媒コンバータ１の領域での本発明による排ガス後処理システムからの抜粋を示す。触媒コンバータ１は、複数の触媒モジュール２を備え、それらは、図示される例となる実施形態では、長方形の形に設計され、列および行を形成するアレイ状に配置される。   FIG. 1 shows an excerpt from an exhaust gas aftertreatment system according to the invention in the area of a catalytic converter 1. The catalytic converter 1 comprises a plurality of catalyst modules 2, which in the illustrated exemplary embodiment are designed in the shape of a rectangle and arranged in an array forming columns and rows.

それに応じて、図１は、図示される例となる実施形態での触媒モジュール２が、６つの触媒モジュール２の４つの行３それぞれを形成し、触媒モジュール６それぞれの２つの行３が、グループ４を形成することを示す。   Accordingly, FIG. 1 shows that the catalyst module 2 in the illustrated exemplary embodiment forms four rows 3 of six catalyst modules 2 respectively, and the two rows 3 of each catalyst module 6 are grouped together. 4 is formed.

触媒コンバータ１は、排ガスが、それを介して触媒コンバータ１に入る、排ガス入口側５、および排ガスが、それを介して触媒コンバータ１から出る、排ガス出口側１３を備える。触媒コンバータ１の排ガス入口側５は、触媒モジュール２の対応する排ガス入口側６によって提供される。同様に、触媒コンバータ１の排ガス出口側１３は、触媒モジュール２の対応する見えない排ガス出口側によって形成される。   The catalytic converter 1 comprises an exhaust gas inlet side 5 through which exhaust gas enters the catalytic converter 1 and an exhaust gas outlet side 13 through which exhaust gas exits the catalytic converter 1. The exhaust gas inlet side 5 of the catalytic converter 1 is provided by a corresponding exhaust gas inlet side 6 of the catalyst module 2. Similarly, the exhaust gas outlet side 13 of the catalytic converter 1 is formed by the corresponding invisible exhaust gas outlet side of the catalyst module 2.

運転中は、煤が、触媒モジュール２の排ガス入口側６に積もることもある。本発明は、吹き出し装置７の詳細に関し、それを介して、煤は、触媒モジュール２のまたは触媒コンバータ１の目詰まりを避けるために、触媒モジュール２の排ガス入口側６から、それに応じて触媒コンバータ１の排ガス入口側５から吹き飛ばされることが可能である。   During operation, soot may accumulate on the exhaust gas inlet side 6 of the catalyst module 2. The present invention relates to the details of the blow-out device 7, through which the soot is correspondingly removed from the exhaust gas inlet side 6 of the catalyst module 2 or the catalytic converter 2 to avoid clogging of the catalytic converter 1. 1 can be blown away from the exhaust gas inlet side 5.

本発明による排ガス後処理システムでは、複数の吹き出し開口９、１０を有する少なくとも１つのチューブ８が、排ガス入口側５から所定の距離を有して複数の触媒モジュール２を横断して触媒コンバータ１の排ガス入口側５に沿って延び、各吹き出し開口９、１０を介して、空気は、いずれの場合にも少なくとも１つの触媒モジュール５の排ガス入口側６に吹き付けられてもよい。   In the exhaust gas aftertreatment system according to the present invention, at least one tube 8 having a plurality of blowing openings 9, 10 crosses a plurality of catalyst modules 2 at a predetermined distance from the exhaust gas inlet side 5, and Air may be blown onto the exhaust gas inlet side 6 of at least one catalyst module 5 in each case through the exhaust openings 9, 10 extending along the exhaust gas inlet side 5.

ここでは特に、各吹き出し開口９、１０を介して、空気が、いずれの場合にも目標とされる仕方で触媒モジュール２の１つの排ガス入口側６に吹き付けられてもよく、その結果それに応じて各触媒モジュール２のためのチューブ８が、少なくとも１つの、優先的にはより多くの触媒モジュール個々の吹き出し開口９、１０を備え、それを介して、空気が、それぞれの触媒モジュール２の排ガス入口側６に吹き付けられてもよいということが、提示される。   Here, in particular, air may be blown to one exhaust gas inlet side 6 of the catalyst module 2 in each case in a targeted manner via the respective blowing openings 9, 10, as a result. The tube 8 for each catalyst module 2 is provided with at least one, preferentially more catalyst module individual outlet openings 9, 10, through which the air flows into the exhaust gas inlet of the respective catalyst module 2. It is presented that side 6 may be sprayed.

触媒コンバータ１が、いずれの場合にも複数の触媒モジュール２を有する２つの行３それぞれの２つのグループ４を備える、図示される例となる好ましい実施形態では、チューブ８は、いずれの場合にも触媒モジュール２それぞれの２つの行３の各グループ４について存在し、それは、触媒コンバータ１の排ガス入口側５に沿って所定の距離を有して延びる。   In the illustrated exemplary preferred embodiment, in which the catalytic converter 1 comprises in each case two groups 4 of two rows 3 each having a plurality of catalyst modules 2, the tube 8 is in each case There is for each group 4 in two rows 3 of each of the catalyst modules 2, which extend with a predetermined distance along the exhaust gas inlet side 5 of the catalytic converter 1.

各チューブ８は、空気がそれを介して、それぞれのチューブ８の第１の側に向かって位置決めされる触媒モジュール２の排ガス入口側６に向けられてもよい、吹き出し開口９、１０、および空気がそれを介して、それぞれのチューブの第２の側に向かって位置決めされる触媒モジュール２の排ガス入口側６に吹き付けられてもよい、さらなる吹き出し開口９、１０を備える。ここで、それぞれのチューブ８は優先的に、グループ４に組み合わされる２つの行３の触媒モジュール２の間の中間くらいに延びる。   Each tube 8 may be directed to an exhaust inlet 9, 10, and air, through which air may be directed to the exhaust gas inlet side 6 of the catalyst module 2, which is positioned toward the first side of the respective tube 8. Are provided with further blow-off openings 9, 10, which may be blown to the exhaust gas inlet side 6 of the catalyst module 2, which is positioned towards the second side of the respective tube. Here, each tube 8 preferentially extends about halfway between the two row 3 catalyst modules 2 combined in group 4.

特に、それぞれのグループ４の各触媒モジュール２についての各チューブ８が、それらの吹き出し角および／またはそれらの直径に関して異なるいろいろな吹き出し開口９、１０を有するということが、提示される。それぞれの詳細は、図２ａから図２ｄ、図３ａから図３ｄ、図４ａから図４ｂおよび図５ａから図５ｂを参照して下記で述べられる。   In particular, it is presented that each tube 8 for each catalyst module 2 of the respective group 4 has a variety of outlet openings 9, 10 that differ with respect to their outlet angle and / or their diameter. Details of each are described below with reference to FIGS. 2a to 2d, FIGS. 3a to 3d, FIGS. 4a to 4b and FIGS. 5a to 5b.

図２から図２ａの例となる実施形態では、チューブ８は、それぞれのグループ４の各触媒モジュール２について第１の吹き出し開口９および第２の吹き出し開口１０を備える。図２ａから図２ｄの例となる実施形態では、吹き出し開口９、１０は、空気をそれぞれの触媒モジュール２の排ガス入口側６に向ける、それらの吹き出し角に関して異なるにすぎない。それに応じて、図２ｃによる吹き出し開口９は、触媒モジュール２の排ガス入口表面６に対する平行線に関する吹き出し角βを含み、一方吹き出し開口１０は、触媒モジュール２の排ガス入口表面６に対するこの平行線に関する吹き出し角αを含む。   In the exemplary embodiment of FIGS. 2 to 2 a, the tube 8 comprises a first blowing opening 9 and a second blowing opening 10 for each catalyst module 2 of each group 4. In the exemplary embodiment of FIGS. 2 a to 2 d, the blowing openings 9, 10 differ only in their blowing angles that direct the air towards the exhaust gas inlet side 6 of the respective catalyst module 2. Correspondingly, the blowout opening 9 according to FIG. 2 c includes a blowout angle β with respect to the parallel line to the exhaust gas inlet surface 6 of the catalyst module 2, while the blowout opening 10 blows off with respect to this parallel line to the exhaust gas inlet surface 6 of the catalyst module 2. Includes angle α.

ここで、吹き出し開口９の吹き出し角βは、吹き出し開口１０の吹き出し角αよりも大きく、その結果異なる吹き出し開口９、１０を介して、空気は、それぞれの触媒モジュール２のそれぞれの排ガス入口側６上への異なる吹き出しコーン１１、１２内に向けられてもよい。このため、それぞれの触媒モジュール２の排ガス入口側６のほぼ全体に空気を効果的に吹き付けることが可能であり、それ故にそれぞれの触媒モジュール２の排ガス入口側６から煤を効果的に除去する。   Here, the blowout angle 9 of the blowout opening 9 is larger than the blowout angle α of the blowout opening 10, and as a result, the air passes through the different blowout openings 9, 10, and the air enters each exhaust gas inlet side 6 of each catalyst module 2. It may be directed into different blowing cones 11, 12 up. For this reason, it is possible to effectively blow air over substantially the entire exhaust gas inlet side 6 of each catalyst module 2, and therefore, soot is effectively removed from the exhaust gas inlet side 6 of each catalyst module 2.

吹き出し角αおよびβは、異なり、いずれの場合にも０°よりも大きく、優先的には１０°よりも大きく、かつ９０°よりも小さく、優先的には８０°よりも小さい。吹き出し開口９の吹き出し角βは、優先的には５０°と８０°との間にある。吹き出し開口１０の吹き出し角αは、優先的には１０°と４５°との間にある。   The blowing angles α and β are different and in each case are larger than 0 °, preferentially larger than 10 ° and smaller than 90 °, preferentially smaller than 80 °. The blowing angle β of the blowing opening 9 is preferentially between 50 ° and 80 °. The blowing angle α of the blowing opening 10 is preferentially between 10 ° and 45 °.

すでに説明されたように、異なる吹き出し開口９、１０は、図２ａから図２ｄの例となる実施形態では、それらの吹き出し角αおよびβそれぞれに関して排他的に異なる。図２ａから図２ｄでは、吹き出し開口９、１０は、同一の直径を有する。さらに、吹き出し開口９の数は、吹き出し開口１０の数と同一である。これに加えて、吹き出し開口９、１０は、チューブ８の同じ軸位置に配置される。   As already explained, the different blowing openings 9, 10 are exclusively different with respect to their respective blowing angles α and β in the example embodiment of FIGS. 2a to 2d. 2a to 2d, the blowout openings 9, 10 have the same diameter. Further, the number of blowing openings 9 is the same as the number of blowing openings 10. In addition to this, the blowing openings 9 and 10 are arranged at the same axial position of the tube 8.

図３ａから図３ｄは、本発明の変形を示し、それぞれの触媒モジュール２についての吹き出し開口９、１０は、それらの吹き出し角αおよびβそれぞれに関して異なるだけでなく、さらにまたそれらの直径およびチューブ８に沿ったそれらの軸位置ならびにそれらの数に関しても異なる。   FIGS. 3a to 3d show a variant of the invention, where the blowing openings 9, 10 for each catalyst module 2 are not only different for their blowing angles α and β respectively, but also their diameter and tube 8. Also differ with respect to their axial position along the number as well as their number.

それに応じて、図３ａから図３ｄの例となる実施形態では、その平行線に対する吹き出し角βが、吹き出し開口１０の吹き出し角αよりも大きい、吹き出し開口９の数は、吹き出し開口１０の数よりも大きい。より小さい吹き出し角αを有する吹き出し開口１０の直径は、より大きい吹き出し角βを有する吹き出し開口９の直径よりも大きい。   Accordingly, in the exemplary embodiment of FIGS. 3 a to 3 d, the number of blowing openings 9 in which the blowing angle β with respect to the parallel line is greater than the blowing angle α of the blowing opening 10 is greater than the number of blowing openings 10. Is also big. The diameter of the blowout opening 10 having a smaller blowout angle α is larger than the diameter of the blowout opening 9 having a larger blowout angle β.

図３ｄは、対応する吹き出しコーン１１、１２が、図示される触媒モジュール２の排ガス入口側６を打つ、表面を視覚化する。図３ａから図３ｄの実施形態に関して、煤はまた、それぞれの触媒モジュール２のそれぞれの排ガス入口側６から効果的に吹き飛ばされることが可能でもある。   FIG. 3d visualizes the surface where the corresponding blowing cones 11, 12 strike the exhaust gas inlet side 6 of the illustrated catalyst module 2. With respect to the embodiment of FIGS. 3 a to 3 d, soot can also be effectively blown off from the respective exhaust gas inlet side 6 of the respective catalyst module 2.

本発明のさらなるバージョンは、図４ａから図４ｂによって示され、図４ａから図４ｂのバージョンでは、異なる吹き出し角αおよびβを有する吹き出し開口９、１０は、この場合もやはり図２ａから図２ｄの例となる実施形態に従って同一の直径を有するが、しかし互いに対するオフセットがチューブの軸方向に見られる。さらに、異なるα、βを有する吹き出し開口９、１０の数が異なる。   A further version of the invention is illustrated by FIGS. 4a to 4b, in which the blowing openings 9, 10 with different blowing angles α and β are again of FIGS. 2a to 2d. According to an exemplary embodiment, they have the same diameter, but an offset relative to each other is seen in the axial direction of the tube. Furthermore, the number of blowing openings 9 and 10 having different α and β is different.

図５ａ、図５ｂは、本発明による排ガス後処理システム１０の詳細を示し、図示されるチューブ８はこの場合もやはり、触媒モジュール２の２つの行３の触媒モジュール２の排ガス入口側６から煤を吹き飛ばす。第１の側では、チューブ８は、それらの数に関しても、またそれらの吹き出し角、それらの直径、およびチューブ８に沿ったそれらの軸位置に関しても異なる吹き出し開口９、１０を備える。対照的に軸位置の反対側に位置するチューブ８の第２の側では、異なる穴９、１０の数は、異なる吹き出し角α、βと同一である。   FIGS. 5 a, 5 b show details of the exhaust gas aftertreatment system 10 according to the invention, the tube 8 shown again from the exhaust gas inlet side 6 of the catalyst modules 2 in the two rows 3 of the catalyst modules 2. Blow away. On the first side, the tubes 8 are provided with blowing openings 9, 10 that differ in terms of their number and also in terms of their blowing angle, their diameter, and their axial position along the tube 8. In contrast, on the second side of the tube 8 located on the opposite side of the axial position, the number of different holes 9, 10 is the same as the different blowing angles α, β.

本発明を用いると、煤は、触媒コンバータ１の触媒モジュール２の排ガス入口側６から効果的に除去することができる。本発明は、ＳＣＲ排ガス後処理システムのＳＣＲ触媒コンバータとともに優先的に用いられる。しかしながら、本発明はまた、排ガス入口側から煤を除去するために、他の触媒コンバータとともに、例えばＣＨ４酸化触媒コンバータ等とともに用いられてもよい。 Using the present invention, soot can be effectively removed from the exhaust gas inlet side 6 of the catalyst module 2 of the catalytic converter 1. The present invention is preferentially used with the SCR catalytic converter of the SCR exhaust gas aftertreatment system. However, the present invention may also be used with other catalytic converters, such as with a CH 4 oxidation catalytic converter, etc., to remove soot from the exhaust gas inlet side.

空気は優先的に、吹き出し開口９、１０を介して触媒モジュール２の排ガス入口表面６にショック状またはインパルス状に向けられる。   The air is preferentially directed to the exhaust gas inlet surface 6 of the catalyst module 2 through the blowout openings 9 and 10 in a shock or impulse manner.

１ 触媒コンバータ
２ 触媒モジュール
３ 行
４ グループ
５ 排ガス入口側
６ 排ガス入口側
７ 吹き出し装置
８ チューブ
９ 吹き出し開口
１０ 吹き出し開口
１１ 吹き出しコーン
１２ 吹き出しコーン
１３ 排ガス出口側 DESCRIPTION OF SYMBOLS 1 Catalytic converter 2 Catalyst module 3 rows 4 groups 5 Exhaust gas inlet side 6 Exhaust gas inlet side 7 Blowout device 8 Tube 9 Blowout opening 10 Blowout opening 11 Blowout cone 12 Blowout cone 13 Exhaust gas outlet side

Claims (12)

触媒コンバータ（１）を有する内燃エンジンの排ガス後処理システムであって、前記触媒コンバータ（１）は、複数の触媒モジュール（２）、排ガス入口側（５）および排ガス出口側（１３）を備え、かつ吹き出し装置（７）を有し、前記吹き出し装置を介して堆積物が前記触媒コンバータ（１）の前記排ガス入口側（５）から、すなわち前記触媒モジュール（２）の前記排ガス入口側（６）から吹き飛ばされることが可能であり、
前記触媒コンバータ（１）の前記排ガス入口側（５）に沿って、複数の吹き出し開口（９、１０）を有する少なくとも１つのチューブ（８）が、前記排ガス入口側（５）から所定の距離を有して複数の触媒モジュール（２）を横断して延び、各吹き出し開口（９、１０）を介して、空気が、少なくとも１つの触媒モジュール（２）の前記排ガス入口側（６）に吹き付けられることを特徴とする、排ガス後処理システム。 An exhaust gas aftertreatment system for an internal combustion engine having a catalytic converter (1), the catalytic converter (1) comprising a plurality of catalyst modules (2), an exhaust gas inlet side (5) and an exhaust gas outlet side (13), And a blowing device (7) through which the deposits from the exhaust gas inlet side (5) of the catalytic converter (1), that is, the exhaust gas inlet side (6) of the catalyst module (2). Can be blown away from
Along the exhaust gas inlet side (5) of the catalytic converter (1), at least one tube (8) having a plurality of blowing openings (9, 10) has a predetermined distance from the exhaust gas inlet side (5). And extending across the plurality of catalyst modules (2), and through each blowing opening (9, 10), air is blown to the exhaust gas inlet side (6) of at least one catalyst module (2). An exhaust gas aftertreatment system characterized by the above. 各吹き出し開口（９、１０）を介して、空気が、いずれの場合にも前記触媒モジュール（２）うちの１つの前記排ガス入口側（６）に目標を定めて吹き付けられることを特徴とする、請求項１に記載の排ガス後処理システム。   Through each blowing opening (9, 10), air is blown at a target to the exhaust gas inlet side (6) of one of the catalyst modules (2) in any case, The exhaust gas aftertreatment system according to claim 1. 複数の触媒モジュール（２）についての前記チューブ（８）が、複数の触媒モジュール個々の吹き出し開口（９、１０）を備え、それらを介して空気が、前記それぞれの触媒モジュール（２）の前記排ガス入口側（６）に吹き付けられることを特徴とする、請求項１または２に記載の排ガス後処理システム。   The tube (8) for a plurality of catalyst modules (2) is provided with individual blowout openings (9, 10) for a plurality of catalyst modules, through which the air is exhausted from the respective catalyst modules (2). 3. The exhaust gas aftertreatment system according to claim 1, wherein the exhaust gas aftertreatment system is sprayed on the inlet side (6). 前記触媒モジュール（２）の各々についての前記チューブ（８）が、それらの吹き出し角に関して異なる吹き出し開口（９、１０）を備えることを特徴とする、請求項３に記載の排ガス後処理システム。   The exhaust gas aftertreatment system according to claim 3, characterized in that the tubes (8) for each of the catalyst modules (2) are provided with different blowing openings (9, 10) with respect to their blowing angles. 前記触媒モジュール（２）の各々についての前記チューブ（８）が、それらの直径に関して異なる吹き出し開口（９、１０）を備えることを特徴とする、請求項３または４に記載の排ガス後処理システム。   The exhaust gas aftertreatment system according to claim 3 or 4, characterized in that the tubes (8) for each of the catalyst modules (2) are provided with outlet openings (9, 10) that differ with respect to their diameter. 前記排ガス入口側に対する垂線に基づく前記吹き出し角が、比較的小さく、それ故に前記排ガス入口側に対する平行線に関する前記吹き出し角が、比較的大きい、そのような吹き出し開口（９）の直径が、前記排ガス入口側に対する前記垂線に基づく前記吹き出し角が、比較的大きく、それ故に前記排ガス入口側に対する前記平行線に基づく前記吹き出し角が、比較的小さい、そのような吹き出し開口（１０）の直径よりも小さいことを特徴とする、請求項５に記載の排ガス後処理システム。   The diameter of the outlet opening (9) is such that the outlet angle based on the perpendicular to the exhaust gas inlet side is relatively small and hence the outlet angle relative to the parallel line to the exhaust gas inlet side is relatively large. The blowing angle based on the perpendicular to the inlet side is relatively large, and therefore the blowing angle based on the parallel line to the exhaust gas inlet side is relatively small, smaller than the diameter of such a blowing opening (10). The exhaust gas aftertreatment system according to claim 5, wherein: 前記吹き出し開口（９、１０）が、少なくとも部分的に前記チューブ（８）の軸方向にオフセットしていることを特徴とする、請求項３から６のいずれか一項に記載の排ガス後処理システム。   The exhaust gas aftertreatment system according to any one of claims 3 to 6, characterized in that the outlet opening (9, 10) is at least partially offset in the axial direction of the tube (8). . 前記吹き出し開口（９、１０）が、少なくとも部分的に前記チューブ（８）の軸方向において同一位置に位置決めされることを特徴とする、請求項３から７のいずれか一項に記載の排ガス後処理システム。   8. After exhaust gas according to claim 3, characterized in that the outlet openings (9, 10) are at least partially positioned at the same position in the axial direction of the tube (8). Processing system. 前記それぞれのチューブ（８）が、吹き出し開口（９、１０）であって、前記吹き出し開口を介して空気が、前記それぞれのチューブ（８）の第１の側に向かって位置決めされる触媒モジュール（２）の前記排ガス入口側（６）に吹き付けられる、吹き出し開口（９、１０）と、さらなる吹き出し開口（９、１０）であって、前記さらなる吹き出し開口を介して前記空気が、前記それぞれのチューブ（８）の第２の側に向かって位置決めされる触媒モジュール（２）の前記排ガス入口側（６）に吹き付けられる、さらなる吹き出し開口（９、１０）と、を備えることを特徴とする、請求項１から８のいずれか一項に記載の排ガス後処理システム。   Each of the tubes (8) is a blowing opening (9, 10) through which the air is positioned toward the first side of the respective tube (8). 2) blow-off openings (9, 10) and further blow-off openings (9, 10) blown to the exhaust gas inlet side (6) of 2), through which the air flows into the respective tubes A further blow-off opening (9, 10) blown to the exhaust gas inlet side (6) of the catalyst module (2) positioned towards the second side of (8), Item 9. The exhaust gas aftertreatment system according to any one of Items 1 to 8. 前記それぞれのチューブ（８）の前記第１の側に向かって位置決めされる触媒モジュール（２）の前記排ガス入口側（６）に空気が吹き付けられる、前記吹き出し開口（９、１０）が、開口径および／または吹き出し角および／または軸位置に関して異なる吹き出し開口（９、１０）を備え、ならびに前記それぞれのチューブ（８）の前記第２の側に向かって位置決めされる触媒モジュール（２）の前記排ガス入口側（６）に空気が吹き付けられる、前記吹き出し開口（９、１０）が同様に、開口径および／または吹き出し角および／または軸位置に関して異なる吹き出し開口（９、１０）を備えることを特徴とする、請求項９に記載の排ガス後処理システム。   The blowing openings (9, 10) through which air is blown to the exhaust gas inlet side (6) of the catalyst module (2) positioned toward the first side of the respective tubes (8) have an opening diameter. And / or the exhaust gas of the catalyst module (2) with different outlet openings (9, 10) with respect to the outlet angle and / or axial position and positioned towards the second side of the respective tube (8) Said blowing opening (9, 10), into which air is blown on the inlet side (6), is likewise provided with different blowing openings (9, 10) with respect to opening diameter and / or blowing angle and / or axial position The exhaust gas aftertreatment system according to claim 9. 複数の触媒モジュール（２）それぞれの２つの行（３）の各グループ（４）についての前記排ガス後処理システムが、いずれの場合にも複数の吹き出し開口（９、１０）を有するチューブ（８）を備えることを特徴とする、請求項１から１０のいずれか一項に記載の排ガス後処理システム。   A tube (8) in which the exhaust gas aftertreatment system for each group (4) in two rows (3) of each of a plurality of catalyst modules (2) has a plurality of outlet openings (9, 10) in any case The exhaust gas aftertreatment system according to any one of claims 1 to 10, characterized by comprising: 請求項１から１１のいずれか一項に記載の排ガス後処理システムを有する内燃エンジン。   An internal combustion engine comprising the exhaust gas aftertreatment system according to any one of claims 1 to 11.
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