KR20210056236A - Catalytic converter, exhaust gas after-treatment system and internal combustion engine - Google Patents

Catalytic converter, exhaust gas after-treatment system and internal combustion engine Download PDF

Info

Publication number
KR20210056236A
KR20210056236A KR1020200143248A KR20200143248A KR20210056236A KR 20210056236 A KR20210056236 A KR 20210056236A KR 1020200143248 A KR1020200143248 A KR 1020200143248A KR 20200143248 A KR20200143248 A KR 20200143248A KR 20210056236 A KR20210056236 A KR 20210056236A
Authority
KR
South Korea
Prior art keywords
housing section
exhaust gas
catalytic converter
inlet
flow
Prior art date
Application number
KR1020200143248A
Other languages
Korean (ko)
Inventor
메흐멧 코스쿤 바이닥
요하네스 리페르트
아르네 뭴러
아르네 ’ƒ러
Original Assignee
만 에너지 솔루션즈 에스이
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 만 에너지 솔루션즈 에스이 filed Critical 만 에너지 솔루션즈 에스이
Publication of KR20210056236A publication Critical patent/KR20210056236A/en

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • 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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

A catalytic converter (10) for an exhaust gas post-treatment system of an internal combustion engine, which is an SCR catalytic converter for an SCR exhaust gas post-treatment system, includes: a catalytic converter housing (11); a plurality of honeycomb bodies (15) housed in a first housing section (12) of the catalytic converter housing (11) leading exhaust gas to flow in a first direction (X1) therethrough; a second housing section of the catalytic converter housing (11) forming an inflow housing section (13), leading the exhaust gas to flow in a second direction (X2) therethrough, in order to feed the exhaust gas to the honeycomb bodies (15); and a third housing section forming a discharge housing section (14), leading the exhaust gas to flow in a third direction (X3) therethrough, in order to discharge the exhaust gas from the honeycomb bodies (15). In regard to the catalytic converter, the second direction (X2) is extended vertically to the first direction (X1), and the third direction (X3) is extended vertically to the first direction (X1) or in parallel with the first direction (X1).

Description

촉매 컨버터, 배기 가스 후처리 시스템 및 내연 기관{CATALYTIC CONVERTER, EXHAUST GAS AFTER-TREATMENT SYSTEM AND INTERNAL COMBUSTION ENGINE}Catalytic converter, exhaust gas aftertreatment system and internal combustion engine {CATALYTIC CONVERTER, EXHAUST GAS AFTER-TREATMENT SYSTEM AND INTERNAL COMBUSTION ENGINE}

본 발명은, 내연 기관의 배기 가스 후처리 시스템을 위한 촉매 컨버터에 관한 것이다. 본 발명은, 더불어, 촉매 컨버터를 구비하는 배기 가스 후처리 시스템에 그리고 배기 가스 후처리 시스템을 구비하는 내연 기관에 관한 것이다.The present invention relates to a catalytic converter for an exhaust gas aftertreatment system of an internal combustion engine. The present invention also relates to an exhaust gas aftertreatment system with a catalytic converter and to an internal combustion engine with an exhaust gas aftertreatment system.

예를 들어 발전소들에서 채택되는 고정형 내연 기관들 내에서의 연소 프로세스들 도중에, 그리고 예를 들어 선박들 상에 채택되는 비고정형 내연 기관들 내에서의 연소 프로세스들 도중에, 질소 산화물들이 생성되며, 이러한 질소 산화물들은 전형적으로, 숯, 석탄, 갈탄, 원유, 중유, 디젤 연료, 또는 가스와 같은, 연료들의 연소 도중에 생성된다. 이러한 이유로, 그러한 내연 기관들에, 세정을 위해, 특히 내연 기관을 떠나는 배기 가스를 탈질화하기 위해, 기능하는, 배기 가스 후처리 시스템들이 할당된다.Nitrogen oxides are produced, for example, during combustion processes in stationary internal combustion engines employed in power plants, and during combustion processes in non-stationary internal combustion engines, for example employed on ships. Nitrogen oxides are typically produced during combustion of fuels, such as charcoal, coal, lignite, crude oil, heavy oil, diesel fuel, or gas. For this reason, such internal combustion engines are assigned exhaust gas aftertreatment systems, which function, for cleaning, in particular for denitrifying the exhaust gas leaving the internal combustion engine.

배기 가스 내의 질소 산화물들을 감소시키기 위해, 주로, 소위 SCR 촉매 컨버터들이, 실무적으로 공지되는, 배기 가스 후처리 시스템들 내에 채택된다. SCR 촉매 컨버터 내에서, 질소 산화물들의 선택적 촉매 환원이 일어나며, 질소 산화물들의 환원을 위해, 환원제로서 암모니아(NH3)가 필요하게 된다. 이를 위해, 암모니아 또는, 예를 들어 요소와 같은 암모니아 전구체 물질은, SCR 촉매 컨버터의 상류에서, 액체 상태에서 배기 가스 내로 도입되며, 암모니아 또는 암모니아 전구체 물질은, SCR 촉매 컨버터의 상류에서 배기 가스와 혼합된다. 이를 위해, 암모니아의 또는 암모니아 전구체 물질의 도입부와 SCR 촉매 컨버터 사이에 혼합 섹션들이, 실시에 따라 제공된다.In order to reduce nitrogen oxides in the exhaust gas, mainly so-called SCR catalytic converters are employed in exhaust gas aftertreatment systems, which are known in practice. In the SCR catalytic converter, selective catalytic reduction of nitrogen oxides takes place, and for the reduction of nitrogen oxides, ammonia (NH3) is required as a reducing agent. To this end, ammonia or, for example, an ammonia precursor material, such as urea, is introduced into the exhaust gas in a liquid state upstream of the SCR catalytic converter, and the ammonia or ammonia precursor material is mixed with the exhaust gas upstream of the SCR catalytic converter. do. To this end, mixing sections are provided, depending on the implementation, between the introduction of the ammonia or of the ammonia precursor material and the SCR catalytic converter.

비록 실무적으로 공지되는 촉매 컨버터들 및, 촉매 컨버터를 포함하는, 배기 가스 후처리 시스템에 의해, 배기 가스 후처리, 특히 질소 산화물 환원은, 이미 성공적으로 일어날 수 있지만, 촉매 컨버터들 및 배기 가스 후처리 시스템들을 추가로 개선할 필요가 있다. 특히, 그러한 촉매 컨버터들 및 배기 가스 후처리 시스템들의 콤팩트한 설계에 대한 필요성이 존재한다.Catalytic converters and exhaust gas post-treatment, although in practice known catalytic converters and exhaust gas post-treatment systems, including catalytic converters, exhaust gas post-treatment, in particular nitrogen oxide reduction, can already occur successfully Systems need to be further improved. In particular, there is a need for a compact design of such catalytic converters and exhaust gas aftertreatment systems.

이로부터 시작하여, 본 발명은, 새로운 유형의 촉매 컨버터, 내연 기관의 새로운 유형의 배기 가스 후처리 시스템 및 그러한 배기 가스 후처리 시스템을 구비하는 내연 기관을 생성하는 목적에 기초하게 된다.Starting from this, the present invention is based on the object of producing a new type of catalytic converter, a new type of exhaust gas aftertreatment system of an internal combustion engine and an internal combustion engine having such an exhaust gas aftertreatment system.

이러한 목적은, 청구항 1에 따른 내연 기관의 배기 가스 후처리 시스템을 위한 촉매 컨버터를 통해 해소된다.This object is solved by means of a catalytic converter for an exhaust gas aftertreatment system of an internal combustion engine according to claim 1.

본 발명에 따른 촉매 컨버터는, 촉매 컨버터 하우징을 포함한다. 촉매 컨버터 하우징의 제1 하우징 섹션 내에, 배기 가스가 그를 통해 제1 방향으로 유동되도록 할 수 있는, 복수의 벌집형 몸체가, 수용된다. 유입 하우징 섹션을 형성하며 그리고 배기 가스가 그를 통해 제2 방향으로 유동되도록 할 수 있는, 촉매 컨버터 하우징의 제2 하우징 섹션에 의해, 배기 가스가 벌집형 몸체들에 급송될 수 있다. 유출 하우징 섹션을 형성하며 그리고 배기 가스가 그를 통해 제3 방향으로 유동되도록 할 수 있는, 촉매 컨버터 하우징의 제3 하우징 섹션에 의해, 배기 가스가 벌집형 몸체들로부터 방출될 수 있다. 제2 방향은, 제1 방향에 직교하여 연장된다. 제3 방향은, 또한 제1 방향에 직교하여 연장되거나, 또는 제1 방향과 평행하게 연장된다. The catalytic converter according to the present invention comprises a catalytic converter housing. In the first housing section of the catalytic converter housing, a plurality of honeycomb bodies are accommodated, through which exhaust gas can flow in a first direction. By means of a second housing section of the catalytic converter housing which forms an inlet housing section and allows the exhaust gas to flow in a second direction therethrough, the exhaust gas can be fed to the honeycomb bodies. By means of a third housing section of the catalytic converter housing which forms an outlet housing section and allows the exhaust gas to flow in a third direction therethrough, the exhaust gas can be discharged from the honeycomb bodies. The second direction extends orthogonal to the first direction. The third direction also extends orthogonal to the first direction or extends parallel to the first direction.

그러한 방식으로 구성되는 촉매 컨버터와 더불어, 콤팩트한 설계를 갖는, 효과적인 배기 가스 후처리 시스템이, 보장될 수 있다.In addition to the catalytic converter configured in such a way, an effective exhaust gas aftertreatment system, with a compact design, can be ensured.

유리한 다른 개선예에 따르면, 벌집형 몸체들은, 배기 가스가 그를 통해 수직의 제1 방향으로 아래에서 위로 유동되도록 할 수 있고, 유입 하우징 섹션 및 유출 하우징 섹션 양자 모두는, 배기 가스가 그를 통해 수평의 제2 방향 및 제3 방향으로 유동되도록 할 수 있으며, 유출 하우징은, 그를 통해 또한 제3 방향으로 수직으로 유동되도록 할 수 있다. 이는, 콤팩트한 설계로, 예를 들어 선박 상에서, 비좁은 설치 공간 조건에서 촉매 컨버터를 통합하는데, 그리고 동시에 효과적인 배기 가스 후처리를 보장하는데, 바람직하다.According to another advantageous refinement, the honeycomb bodies are capable of allowing the exhaust gas to flow through it in a vertical first direction from bottom to top, and both the inlet housing section and the outlet housing section allow the exhaust gas to flow through it in a horizontal direction. It can be made to flow in the second direction and the third direction, and the outflow housing can be made to flow vertically through it and also in the third direction. This is desirable in a compact design, for example on ships, for integrating the catalytic converter in tight installation space conditions, and at the same time ensuring effective exhaust gas post-treatment.

유리한 다른 개선예에 따르면, 천공된 튜브가, 배기 가스가 그를 통해 제2 방향으로 유동되도록 할 수 있는, 유입 하우징 섹션 내에 배열된다. 이에 의해, 배기 가스 후처리의 유효성은, 더욱 증가될 수 있다. 배기 가스가 그의 천공부를 통해 내부로부터 외부로 유동될 수 있도록 하는, 천공된 튜브에 의해, 배기 가스는, 모든 벌집형 몸체들을 배기 가스와 궁극적으로 균등하게 충돌시키도록 그리고 그에 따라 가능한 한 효과적으로 배기 가스 후처리를 수행하도록 하기 위해, 제2 하우징 섹션 내에, 즉 유입 하우징 섹션 내에, 균등하게 분산될 수 있다.According to another advantageous refinement, a perforated tube is arranged in the inlet housing section, through which the exhaust gas can flow in a second direction. Thereby, the effectiveness of the exhaust gas post-treatment can be further increased. By means of a perforated tube, which allows the exhaust gas to flow from the inside to the outside through its perforations, the exhaust gas is exhausted so that all honeycomb bodies eventually collide with the exhaust gas evenly and thus as effectively as possible. In order to carry out the gas post-treatment, it can be evenly distributed in the second housing section, ie in the inlet housing section.

유리한 다른 개선예에 따르면, 유입 하우징 섹션 및/또는 유출 하우징 섹션은, 특히 제2 방향이 제1 방향에 대해 수직으로 그리고 제3 방향이 각각의 경우에 제1 방향에 대해 수직으로 또는 제1 방향과 평행하게 연장될 때, 제2 방향 및 제3 방향이 서로 평행하거나 또는 수직으로 연장되는 방식으로, 제1 하우징 섹션에 대해 회전 가능하다. 이러한 구성은, 내연 기관의 설계와 독립적으로, 낮은 설치 공간 요건 및 콤팩트한 치수를 동반하는 이용 가능한 공간에, 촉매 컨버터를 설치하는데 바람직하다.According to another advantageous refinement, the inlet housing section and/or the outlet housing section are in particular in the second direction perpendicular to the first direction and the third direction in each case perpendicular to the first direction or in the first direction. When extending parallel to, the second and third directions are rotatable with respect to the first housing section in such a way that they extend parallel or perpendicular to each other. This configuration is desirable for installing the catalytic converter in the available space, which is accompanied by low installation space requirements and compact dimensions, independent of the design of the internal combustion engine.

본 발명에 따른 배기 가스 후처리 시스템은, 청구항 10에 한정된다.The exhaust gas post-treatment system according to the present invention is limited to claim 10.

본 발명에 따른 내연 기관이, 청구항 11에서 한정된다.The internal combustion engine according to the present invention is defined in claim 11.

본 발명의 바람직한 다른 개선예들이, 종속 청구항들 및 뒤따르는 설명으로부터 달성된다. 본 발명의 예시적인 실시예들이, 이에 제한되지 않는, 도면을 통해, 더욱 상세하게 설명된다.Other preferred refinements of the invention are achieved from the dependent claims and the description that follows. Exemplary embodiments of the present invention are described in more detail through the drawings, but not limited thereto.

도 1은 본 발명에 따른 촉매 컨버터의 개략화된 사시도이고;
도 2는 도 1의 촉매 컨버터를 통한 단면도이며;
도 3은 도 1의 촉매 컨버터의 부분들을 통한 사시 단면도이다.1 is a schematic perspective view of a catalytic converter according to the invention;
Figure 2 is a cross-sectional view through the catalytic converter of Figure 1;
3 is a perspective cross-sectional view through portions of the catalytic converter of FIG. 1;

본 발명은, 내연 기관의 배기 가스 후처리 시스템을 위한 촉매 컨버터에 관한 것이다. 촉매 컨버터는, 우선적으로, SCR 배기 가스 후처리 시스템을 위한 SCR 촉매 컨버터 또는 산화 촉매 컨버터이다.The present invention relates to a catalytic converter for an exhaust gas aftertreatment system of an internal combustion engine. The catalytic converter is primarily an SCR catalytic converter or an oxidation catalytic converter for an SCR exhaust gas aftertreatment system.

도 1 내지 도 3은, 촉매 컨버터 하우징(11)을 포함하는, 본 발명에 따른 촉매 컨버터(10)의 개략화된 도면들을 도시한다. 촉매 컨버터 하우징(11)은 기본적으로, 3개의 하우징 섹션(12, 13, 14)으로 세분화되고, 촉매 컨버터 하우징(11)의 제1 하우징 섹션(12) 내에, 복수의 행과 열을 갖는 벌집형 몸체들(15)의 배열체를 형성하는 복수의 벌집형 몸체(15)가, 배열된다. 하우징 섹션(12)은, 결국, 벌집형 몸체들의 배열체의 복수의 층으로 구성될 수 있다. 벌집형 몸체들(15)은, 배기 가스가 그를 통해 제1 방향(X1)으로 유동되도록 할 수 있다.1 to 3 show schematic views of a catalytic converter 10 according to the invention comprising a catalytic converter housing 11. The catalytic converter housing 11 is basically subdivided into three housing sections 12, 13, 14, and in the first housing section 12 of the catalytic converter housing 11, a honeycomb type having a plurality of rows and columns. A plurality of honeycomb bodies 15, forming an arrangement of the bodies 15, are arranged. The housing section 12 can, in turn, consist of a plurality of layers of an arrangement of honeycomb bodies. The honeycomb bodies 15 may allow exhaust gas to flow in the first direction X1 through it.

여기서, 벌집형 몸체들(15)은, 개별적인 벌집형 몸체(15)의 유입 단부와 유출 단부 사이에 직사각형 단면인 유동 단면을 갖고, 각 벌집형 몸체(15)는 우선적으로, 금속 벌집형 몸체 하우징에 의해 외측에서 부분적으로, 말하자면 노출된 개별적인 벌집형 몸체(15)의 유입 단부 및 유출 단부를 남겨두고, 둘러싸인다. Here, the honeycomb bodies 15 have a flow cross section that is a rectangular cross section between the inlet and outlet ends of the individual honeycomb bodies 15, and each honeycomb body 15 preferentially has a metal honeycomb body housing. The inlet end and outlet end of the individual honeycomb body 15 are partially exposed on the outside by means of, so to speak, and are enclosed.

금속 벌집형 몸체 하우징들은, 또한 깡통(canning)으로도 지칭된다.Metal honeycomb body housings are also referred to as canning.

또한, 촉매 컨버터 하우징(11)은, 유입 하우징 섹션을 형성하는, 제2 하우징 섹션(13)을 포함하고, 이러한 유입 하우징 섹션(13)은, 제1 하우징 섹션(12) 내에 배치되는 벌집형 몸체들(15)로 배기 가스를 급송하기 위해, 배기 가스가 그를 통해 제2 방향(X2)으로 유동되도록 할 수 있다. 유입 하우징 섹션을 제공하는 제2 하우징 섹션(13)은, 제1 하우징 섹션(12)의 일 측면에 배치되고, 제1 하우징 섹션(12)의 일 측면은, 촉매 컨버터 하우징의 유출 하우징 섹션을 제공하는 촉매 컨버터 하우징(11)의 제3 하우징 섹션(14) 반대편에 위치된다. 유출 하우징 섹션(14)은, 벌집형 몸체들(15)로부터 촉매 컨버터 하우징(11) 밖으로 배기 가스를 방출하기 위해, 배기 가스가 그를 통해 제3 방향(X3)으로 유동되도록 할 수 있다.In addition, the catalytic converter housing 11 comprises a second housing section 13, which forms an inlet housing section, which inlet housing section 13 is a honeycomb body disposed in the first housing section 12 In order to supply the exhaust gas to the field 15, the exhaust gas can be made to flow through it in the second direction X2. The second housing section 13, which provides an inlet housing section, is arranged on one side of the first housing section 12, and one side of the first housing section 12 provides an outlet housing section of the catalytic converter housing. Is located opposite the third housing section 14 of the catalytic converter housing 11. The outlet housing section 14 can allow the exhaust gas to flow through it in the third direction X3 in order to discharge the exhaust gas out of the catalytic converter housing 11 from the honeycomb bodies 15.

촉매 컨버터 하우징(11)의 제1 하우징 섹션(12) 내에 배치되는 벌집형 몸체들(15)은, 배기 가스가 그를 통해 도 1 내지 도 3에 따라 수직의 제1 방향(X1)으로 아래에서 위로 유동되도록 할 수 있다. 제1 하우징 섹션(12) 아래에, 배기 가스가 그를 통해 수평의 제2 방향(X2)으로 유동되도록 할 수 있는, 유입 하우징 섹션으로서 역할을 하는 제2 하우징 섹션(13)이, 배치된다. 제1 하우징 섹션(12) 위에, 배기 가스가 그를 통해 수평 또는 수직의 제3 방향(X3)으로 유동되도록 할 수 있는, 유출 하우징 섹션으로서 역할을 하는 제3 하우징 섹션(14)이, 배치된다.Honeycomb bodies 15 arranged in the first housing section 12 of the catalytic converter housing 11, through which the exhaust gas is passed from bottom to top in a vertical first direction X1 according to FIGS. You can make it flow. Below the first housing section 12 is arranged a second housing section 13, which serves as an inlet housing section, through which exhaust gas can flow in a second horizontal direction X2. Above the first housing section 12 is arranged a third housing section 14, which serves as an outlet housing section, through which exhaust gas can flow in a horizontal or vertical third direction X3.

서로 위아래로 배열되는 하우징 섹션들(12, 13, 14)은, 유입 하우징 섹션(13)으로부터 제1 하우징 섹션(12) 내로의 그리고 제1 하우징 섹션(12)으로부터 유출 하우징 섹션(14) 내로의 배기 가스의 통과를 가능하도록 하기 위해, 인접한 측면들 상에서 개방된다. 천공된 튜브(16)가, 촉매 컨버터 하우징(11)의 제2 하우징 섹션 또는 유입 하우징 섹션(13) 내로 돌출한다. 천공된 튜브(16)는, 자체의 원통형 외측벽 상에, 복수의 구멍에 의해 형성되는, 천공부(17)를 구비한다. 촉매 컨버터(10)를 통해 전달되어야 할 배기 가스는, 초기에 천공된 튜브(16)의 내부를 통해 제2 방향(X2)으로 유동하며, 그리고 이어서, 천공부(17)의 구멍들을 통해, 튜브(16) 외측에 위치되는 유입 하우징 섹션(13)의 부분 내로, 튜브(16)의 원통형 벽을 통과한다.The housing sections 12, 13, 14, which are arranged above and below each other, from the inlet housing section 13 into the first housing section 12 and from the first housing section 12 into the outlet housing section 14. In order to allow passage of the exhaust gas, it is opened on adjacent sides. The perforated tube 16 protrudes into the inlet housing section 13 or the second housing section of the catalytic converter housing 11. The perforated tube 16 has, on its own cylindrical outer wall, a perforated portion 17 formed by a plurality of holes. The exhaust gas to be delivered through the catalytic converter 10 initially flows in the second direction X2 through the inside of the perforated tube 16, and then, through the holes in the perforated portion 17, the tube (16) Into the portion of the inlet housing section 13 which is located outside, through the cylindrical wall of the tube 16.

튜브(16)의 원통형 벽 상의 천공부(17)는, 우선적으로, 튜브(16)의 축방향으로 그리고 둘레 방향으로 균일하고, 즉 천공부(17)의 구멍들의 간격 및 크기가 축방향으로 그리고 둘레 방향으로 동일하다. 이에 의해, 배기 가스는, 유입 하우징 섹션(13) 내에서 균일하게 분산될 수 있으며, 그리고 그에 따라, 모든 벌집형 몸체들(15)을 배기 가스와 균일하게 충돌시키도록, 제1 하우징 섹션(12) 내에 배치되는 벌집형 몸체들(15)로 균일하게 급송될 수 있다. 이는, 촉매 컨버터(10)에서의 특히 효과적인 배기 가스 후처리를 위해 유리하다.The perforations 17 on the cylindrical wall of the tube 16 are, preferentially, uniform in the axial and circumferential direction of the tube 16, i.e. the spacing and size of the holes in the perforations 17 are axially and It is the same in the circumferential direction. Thereby, the exhaust gas can be evenly distributed within the inlet housing section 13, and accordingly, the first housing section 12 so as to evenly collide all the honeycomb bodies 15 with the exhaust gas. ) Can be uniformly fed to the honeycomb bodies 15 disposed within. This is advantageous for a particularly effective exhaust gas post-treatment in the catalytic converter 10.

도 1에 도시된 바와 같이, 제2 하우징 섹션 또는 유입 하우징 섹션(13)은, 제2 방향(X2)으로 연장되는 길이(l), 제1 방향(X1)으로 연장되는 높이(h), 및 폭(b)을 갖는다. 길이(l), 높이(h) 및 폭(b)은, 유입 하우징 섹션(13)의 용적을 한정한다.1, the second housing section or the inlet housing section 13 has a length l extending in a second direction X2, a height h extending in a first direction X1, and It has a width (b). The length (l), height (h) and width (b) define the volume of the inlet housing section 13.

천공된 튜브(16)는, 직경(d)을 가지며, 그리고 유입 하우징 섹션(13) 내부에서 유입 하우징 섹션(13)의 전체 길이(l)에 걸쳐 연장된다. 유입 하우징 섹션(13)의 길이(l) 및 튜브(16)의 직경(d)은, 유입 하우징 섹션(13) 내부에서 천공된 튜브(16)의 용적을 한정한다.The perforated tube 16 has a diameter d and extends within the inlet housing section 13 over the entire length l of the inlet housing section 13. The length l of the inlet housing section 13 and the diameter d of the tube 16 define the volume of the tube 16 perforated inside the inlet housing section 13.

유입 하우징 섹션(13) 내에서의 배기 가스의 가능한 한 균일한 분산을 보장하도록 하기 위해 그리고 그에 따라 모든 벌집형 몸체들(15)을 배기 가스와 궁극적으로 균일하게 충돌시키기 위해, 뒤따르는 4개의 값 범위 중의, 적어도 하나가, 바람직하게 복수의 조합이, 또는 특히 바람직하게 모두의 조합이, 채용될 때, 특히 유리한 것으로 입증되었다.In order to ensure a possible even distribution of the exhaust gas in the inlet housing section 13 and accordingly to collide all honeycomb bodies 15 with the exhaust gas ultimately evenly, the following four values It has proved to be particularly advantageous when at least one of the ranges, preferably a plurality of combinations, or particularly preferably combinations of all, are employed.

첫째, 천공된 튜브(16)의 천공부(17)의 자유 유동 단면적과 천공된 튜브(16)의, 말하자면 천공된 튜브의 원통형의 천공된 벽의, 총 표면적 사이의 비가, 1:10 내지 1:5 사이에 달한다. 청구항 6을 또한 참조한다.First, the ratio between the free flow cross-sectional area of the perforated portion 17 of the perforated tube 16 and the total surface area of the perforated tube 16, that is to say, of the cylindrical perforated wall of the perforated tube, is 1:10 to 1 : It reaches between 5. See also claim 6.

둘째, 유입 하우징 섹션(13)의 용적과 유입 하우징 섹션(13) 내부의 천공된 튜브(16)의 용적 사이의 비가, 6:1 내지 4:1 사이에 달한다. 청구항 6을 또한 참조한다.Second, the ratio between the volume of the inlet housing section 13 and the volume of the perforated tube 16 inside the inlet housing section 13 reaches between 6:1 and 4:1. See also claim 6.

셋째, 유입 하우징 섹션(13)의 높이(h)와 천공된 튜브(16)의 직경(d) 사이의 비가, 1:1 내지 1:2 사이에 달한다. 청구항 6을 또한 참조한다.Third, the ratio between the height h of the inlet housing section 13 and the diameter d of the perforated tube 16 reaches between 1:1 and 1:2. See also claim 6.

넷째, 유입 하우징 섹션(13)의 폭(b)과 천공된 튜브(16)의 직경(d) 사이의 비가, 2:1 내지 3:1 사이에 달한다. 청구항 6을 또한 참조한다.Fourth, the ratio between the width b of the inlet housing section 13 and the diameter d of the perforated tube 16 reaches between 2:1 and 3:1. See also claim 6.

천공된 튜브(16)는, 일단부에서 독점적으로 개방되고, 반대편 단부에서, 천공된 튜브는, 유입 하우징 섹션(13)의 벽에 의해 폐쇄된다. 개방된 단부에, 튜브(16)는, 유입 개구(18)를 구비한다. 천공된 튜브(16)의 개방 단부 또는 유입 개구(18)를 통해 천공된 튜브 내로 유동하는, 배기 가스는, 그에 따라, 튜브(16)의 원통형 벽의 천공부(17)를 통해 압박되며, 그리고 천공부(17)를 통해, 천공된 튜브(16)의 외부에 위치되는 유입 하우징 섹션(13)의 구역에 진입한다.The perforated tube 16 is opened exclusively at one end and at the opposite end the perforated tube is closed by the wall of the inlet housing section 13. At the open end, the tube 16 has an inlet opening 18. The exhaust gas, flowing into the perforated tube through the inlet opening 18 or the open end of the perforated tube 16, is urged accordingly through the perforation 17 of the cylindrical wall of the tube 16, and Via perforations 17 enter the region of the inlet housing section 13 which is located outside the perforated tube 16.

일 측면 상에, 유출 하우징 섹션(14)은, 유출 하우징 섹션으로 배기 가스를 방출하기 위한 유출 개구(19)를 구비한다.On one side, the outlet housing section 14 has an outlet opening 19 for discharging exhaust gases to the outlet housing section.

이상에 설명된 바와 같이, 유입 하우징 섹션(13) 및 유출 하우징 섹션(14)은, 한편으로 유입 하우징 섹션(13) 밖으로의 제1 하우징 섹션(12) 내로의 그리고 그에 따라 벌집형 몸체들(15) 내로의 배기 가스의 통과를 그리고 다른 한편으로 벌집형 몸체들(15) 밖으로의 유출 하우징 섹션(14) 내로의 통과를 가능하게 하도록 하기 위해, 제1 하우징 섹션(12)을 지향하는 측면들 상에서 개방된다.As explained above, the inlet housing section 13 and the outlet housing section 14 are, on the one hand, outside the inlet housing section 13 into the first housing section 12 and accordingly the honeycomb bodies 15 ) On the sides facing the first housing section 12 to allow passage of the exhaust gas into and on the other hand into the outflow housing section 14 out of the honeycomb bodies 15. It is open.

본 발명의 유리한 형태에 따르면, 유입 하우징 섹션(13) 및/또는 유출 하우징 섹션(14)이, 특히 제2 방향(X2) 및 제3 방향(X3)이 각각 제1 방향(X1)에 대해 수직으로 연장될 때, 제2 방향(X2) 및 제3 방향(X3)이 서로 평행하거나 또는 수직으로 연장되는 방식으로, 벌집형 몸체들(15)이 그 내부에 배열되는 제1 하우징 섹션(12)에 대해 회전 가능한 것이, 제공된다. 여기서, 천공된 튜브(16)의 그리고 그에 따라 유입 하우징 섹션(13)의 유입 개구(18) 및 유출 하우징 섹션(14)의 유출 개구(19)는, 따라서, 설치 공간의 관점에서 최적인 방식으로, 촉매 컨버터(10)를 배기 가스 후처리 시스템에, 말하자면 배기 가스 후처리 시스템의 배기-전달 튜브들에, 연결하기 위해, 개별적인 하우징 섹션(13, 14)을 회전시킴에 의해 적절한 위치로 이동될 수 있다. 이때, 모든 하우징 섹션들(12, 13, 14)은, 사각형 베이스 영역을 갖는다.According to an advantageous form of the invention, the inlet housing section 13 and/or the outlet housing section 14 are in particular perpendicular to the first direction X1 in the second direction X2 and the third direction X3 respectively. The first housing section 12 in which the honeycomb bodies 15 are arranged therein, in such a way that the second direction X2 and the third direction X3 extend in parallel or perpendicular to each other when extending in It is provided that it is rotatable with respect to. Here, the inlet opening 18 of the perforated tube 16 and thus of the inlet housing section 13 and the outlet opening 19 of the outlet housing section 14 are, therefore, in an optimal way from the point of view of the installation space. , In order to connect the catalytic converter 10 to the exhaust gas aftertreatment system, namely to the exhaust-delivery tubes of the exhaust gas aftertreatment system, to be moved to the appropriate position by rotating the individual housing sections 13, 14. I can. At this time, all of the housing sections 12, 13, 14 have a rectangular base area.

본 발명은, 단지 그와 같은 촉매 컨버터(10)에 관련될 뿐만 아니라, 이에 부가하여 그러한 촉매 컨버터를 구비하는 배기 가스 후처리 시스템에 그리고 그러한 배기 가스 후처리 시스템을 구비하는 내연 기관에, 특히 디젤 연료, 가스 또는 중유에 의해 작동되는 내연 기관에, 관련된다.The invention relates not only to such a catalytic converter 10, but in addition to an exhaust gas aftertreatment system with such a catalytic converter and to an internal combustion engine with such an exhaust gas aftertreatment system, in particular diesel. It relates to internal combustion engines operated by fuel, gas or heavy oil.

바람직하게, 본 발명은, 연료로서, 중유, 가스 또는 잔유가, 그 내부에서 연소되는, 선박을 위한 디젤 내연 기관과 관련하여, 선박들 및 고정형 발전 설비들 상에서 사용된다.Preferably, the invention is used on ships and stationary power plants, in connection with diesel internal combustion engines for ships, in which, as fuel, heavy oil, gas or residual oil is burned therein.

10: 촉매 컨버터 11: 촉매 컨버터 하우징
12: 제1 하우징 섹션 13: 제2 하우징 섹션
14: 제3 하우징 섹션 15: 벌집형 몸체
16: 튜브 17: 천공부
18: 유입 개구 19: 유출 개구10: catalytic converter 11: catalytic converter housing
12: first housing section 13: second housing section
14: third housing section 15: honeycomb body
16: tube 17: perforation
18: inlet opening 19: outlet opening

Claims (11)

내연 기관의 배기 가스 후처리 시스템을 위한 촉매 컨버터(10), 특히 SCR 배기 가스 후처리 시스템을 위한 SCR 촉매 컨버터로서,
촉매 컨버터 하우징(11)을 구비하고,
배기 가스가 그를 통해 제1 방향(X1)으로 유동되도록 할 수 있는 촉매 컨버터 하우징(11)의 제1 하우징 섹션(12) 내에 수용되는, 복수의 벌집형 몸체(15)를 구비하며,
상기 벌집형 몸체들(15)로 배기 가스를 급송하기 위한, 유입 하우징 섹션(13)을 형성하는 촉매 컨버터 하우징(11)의 제2 하우징 섹션으로서, 배기 가스가 그를 통해 제2 방향(X2)으로 유동되도록 할 수 있는 것인, 제2 하우징 섹션을 구비하고,
상기 벌집형 몸체들(15)로부터 배기 가스를 방출하기 위한, 유출 하우징 섹션(14)을 형성하는 촉매 컨버터 하우징(11)의 제3 하우징 섹션으로서, 배기 가스가 그를 통해 제3 방향(X3)으로 유동되도록 할 수 있는 것인, 제3 하우징 섹션을 구비하며,
상기 제2 방향(X2)은 상기 제1 방향(X1)과 수직으로 연장되며, 그리고 상기 제3 방향(X3)은, 상기 제1 방향(X1)과 수직으로 또는 상기 제1 방향(X1)에 평행하게 연장되는 것인, 촉매 컨버터.As a catalytic converter 10 for an exhaust gas aftertreatment system of an internal combustion engine, in particular an SCR catalytic converter for an SCR exhaust gas aftertreatment system,
It has a catalytic converter housing 11,
It has a plurality of honeycomb bodies 15 accommodated in the first housing section 12 of the catalytic converter housing 11 capable of allowing exhaust gas to flow through it in the first direction X1,
A second housing section of the catalytic converter housing 11 forming an inlet housing section 13 for feeding exhaust gas to the honeycomb bodies 15, through which the exhaust gas is directed in a second direction X2. Having a second housing section that is capable of being allowed to flow,
A third housing section of the catalytic converter housing 11 forming an outlet housing section 14 for discharging the exhaust gas from the honeycomb bodies 15, through which the exhaust gas is directed in a third direction X3. Having a third housing section capable of being allowed to flow,
The second direction X2 extends perpendicularly to the first direction X1, and the third direction X3 is perpendicular to the first direction X1 or in the first direction X1. The catalytic converter, which extends in parallel. 제1항에 있어서,
상기 벌집형 몸체들(15)은, 배기 가스가 그를 통해 수직의 제1 방향(X1)으로 아래에서 위로 유동되도록 할 수 있는 것을 특징으로 하는 촉매 컨버터.The method of claim 1,
The honeycomb bodies 15 are catalytic converters, characterized in that the exhaust gas can flow from bottom to top in a vertical first direction (X1) through it. 제1항 또는 제2항에 있어서,
상기 유입 하우징 섹션(13) 및 상기 유출 하우징 섹션(14) 양자 모두는, 배기 가스가 그를 통해 수평의 제2 방향 및 제3 방향으로, 또는 수직으로 제3 방향(X2, X3)으로 유동되도록 할 수 있는 것을 특징으로 하는 촉매 컨버터.The method according to claim 1 or 2,
Both the inlet housing section 13 and the outlet housing section 14 allow exhaust gas to flow through it in a horizontal second direction and a third direction, or vertically in a third direction (X2, X3). Catalytic converter, characterized in that it can. 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 유입 하우징 섹션(13) 내에, 배기 가스가 그를 통해 제2 방향(X2)으로 유동되도록 할 수 있는, 천공된 튜브(16)가, 적어도 부분적으로 배열되는 것을 특징으로 하는 촉매 컨버터.The method according to any one of claims 1 to 3,
Catalytic converter, characterized in that, in the inlet housing section (13), a perforated tube (16), through which exhaust gas can flow in a second direction (X2), is arranged at least partially. 제4항에 있어서,
천공된 튜브(16)의 천공부(17)가, 상기 튜브(16)의 축방향 및 둘레 방향으로 균일한 것을 특징으로 하는 촉매 컨버터.The method of claim 4,
The catalytic converter, characterized in that the perforated portions (17) of the perforated tube (16) are uniform in the axial and circumferential directions of the tube (16). 제4항 또는 제5항에 있어서,
상기 천공된 튜브(16)의 상기 천공부(17)의 자유 유동 단면적과 상기 천공된 튜브(16)의 총 표면적 사이의 비가, 1:10 내지 1:5 사이에 달하고, 및/또는
상기 유입 하우징 섹션(13)의 용적과 상기 유입 하우징 섹션(13) 내부의 상기 천공된 튜브(16)의 용적 사이의 비가, 6:1 내지 4:1 사이에 달하며, 및/또는
상기 유입 하우징 섹션(13)의 높이(h)와 상기 천공된 튜브(16)의 직경(d) 사이의 비가, 1:1 내지 1:2 사이에 달하고, 및/또는
상기 유입 하우징 섹션(13)의 폭(b)과 상기 천공된 튜브(16)의 직경(d) 사이의 비가, 2:1 내지 3:1 사이에 달하는 것을 특징으로 하는 촉매 컨버터.The method according to claim 4 or 5,
The ratio between the free flow cross-sectional area of the perforated portion 17 of the perforated tube 16 and the total surface area of the perforated tube 16 reaches between 1:10 and 1:5, and/or
The ratio between the volume of the inlet housing section 13 and the volume of the perforated tube 16 inside the inlet housing section 13 ranges between 6:1 and 4:1, and/or
The ratio between the height h of the inlet housing section 13 and the diameter d of the perforated tube 16 reaches between 1:1 and 1:2, and/or
Catalytic converter, characterized in that the ratio between the width (b) of the inlet housing section (13) and the diameter (d) of the perforated tube (16) reaches between 2:1 and 3:1. 제1항 내지 제6항 중 어느 한 항에 있어서,
상기 유입 하우징 섹션(13) 및/또는 상기 유출 하우징 섹션(14)은, 특히 상기 제2 방향(X2) 및 상기 제3 방향(X3)이 각각 상기 제1 방향(X1)에 대해 수직으로 연장될 때, 상기 제2 방향(X2) 및 상기 제3 방향(X3)이 서로 평행하거나 또는 수직으로 연장되는 방식으로, 상기 제1 하우징 섹션(12)에 대해 회전 가능한 것을 특징으로 하는 촉매 컨버터.The method according to any one of claims 1 to 6,
The inlet housing section 13 and/or the outlet housing section 14 are, in particular, in which the second direction X2 and the third direction X3 respectively extend perpendicular to the first direction X1. At this time, the second direction (X2) and the third direction (X3) is a catalytic converter, characterized in that rotatable with respect to the first housing section (12) in a manner that extends parallel or perpendicular to each other. 제7항에 있어서,
유입 하우징 섹션(13), 유출 하우징 섹션(14) 및 제1 하우징 섹션(12)의 베이스 영역이, 각각의 경우에 사각형인 것을 특징으로 하는 촉매 컨버터.The method of claim 7,
Catalytic converter, characterized in that the base regions of the inlet housing section (13), the outlet housing section (14) and the first housing section (12) are in each case rectangular. 제1항 내지 제8항 중 어느 한 항에 있어서,
상기 벌집형 몸체들(15)은, 유입 단부와 유출 단부 사이에서 직사각형 단면인 유동 단면을 갖고, 각 벌집형 몸체(15)는 우선적으로, 부분적으로 금속 벌집형 몸체 하우징에 의해 외측에서, 말하자면 개별적인 벌집형 몸체의 유입 단부 및 유출 단부를 노출시키도록, 둘러싸이는 것을 특징으로 하는 촉매 컨버터.The method according to any one of claims 1 to 8,
The honeycomb bodies 15 have a flow cross section that is a rectangular cross section between the inlet and outlet ends, and each honeycomb body 15 is preferentially, partly outwardly by means of a metal honeycomb body housing, so to speak individual Catalytic converter, characterized in that enclosed so as to expose the inlet and outlet ends of the honeycomb body. 내연 기관의 배기 가스 후처리 시스템, 특히 SCR 배기 가스 후처리 시스템으로서,
제1항 내지 제9항 중 어느 한 항에 따른 촉매 컨버터를 구비하는 것인, 배기 가스 후처리 시스템.As an exhaust gas aftertreatment system of an internal combustion engine, especially an SCR exhaust gas aftertreatment system,
An exhaust gas aftertreatment system comprising a catalytic converter according to claim 1. 내연 기관(1), 특히 디젤 연료, 가스 또는 중유에 의해 작동되는 내연 기관으로서,
제10항에 따른 배기 가스 후처리 시스템을 구비하는 것인, 내연 기관.Internal combustion engine (1), in particular as an internal combustion engine operated by diesel fuel, gas or heavy oil,
An internal combustion engine comprising an exhaust gas aftertreatment system according to claim 10.
KR1020200143248A 2019-11-08 2020-10-30 Catalytic converter, exhaust gas after-treatment system and internal combustion engine KR20210056236A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019130183.1 2019-11-08
DE102019130183.1A DE102019130183A1 (en) 2019-11-08 2019-11-08 Catalytic converter, exhaust aftertreatment system and internal combustion engine

Publications (1)

Publication Number Publication Date
KR20210056236A true KR20210056236A (en) 2021-05-18

Family

ID=75583775

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200143248A KR20210056236A (en) 2019-11-08 2020-10-30 Catalytic converter, exhaust gas after-treatment system and internal combustion engine

Country Status (4)

Country Link
JP (1) JP2021076116A (en)
KR (1) KR20210056236A (en)
CN (1) CN112780389A (en)
DE (1) DE102019130183A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407759A1 (en) * 1984-03-02 1985-09-12 Uhde Gmbh, 4600 Dortmund DEVICE FOR REDUCING NO (ARROW DOWN) X (ARROW DOWN) CONTENT IN EXHAUST GAS
JP4580598B2 (en) * 2001-06-22 2010-11-17 株式会社小松製作所 Exhaust gas purification device for internal combustion engine

Also Published As

Publication number Publication date
DE102019130183A1 (en) 2021-05-12
JP2021076116A (en) 2021-05-20
CN112780389A (en) 2021-05-11

Similar Documents

Publication Publication Date Title
US11465108B2 (en) Dosing and mixing arrangement for use in exhaust aftertreatment
US5611198A (en) Series combination catalytic converter
US8460610B2 (en) Canister aftertreatment module
EP3327263B1 (en) Apparatus for aftertreatment of exhaust gas comprising inline housing
EP1770253A1 (en) Exhaust purification apparatus for engine
US10273853B2 (en) Wire mesh mixing tube
CN108252771B (en) Tail gas post-treatment box for heat preservation by using treated tail gas
EP3181843A1 (en) Catalyzed particulate filter
JP2009197695A (en) Exhaust emission control device
KR101981483B1 (en) Exhaust gas cleaning device
EP3438426A1 (en) Exhaust purification system
JP2009197695A5 (en)
JP6942621B2 (en) Mixer for exhaust gas aftertreatment system, exhaust gas aftertreatment system and internal combustion engine
JP2008248746A (en) Muffler with exhaust emission control function
JP4042903B2 (en) Gas flow catalyst treatment equipment
JP2019127879A (en) Exhaust emission control system
JP5856641B2 (en) Exhaust gas purification device
KR20210056236A (en) Catalytic converter, exhaust gas after-treatment system and internal combustion engine
KR101938910B1 (en) SCR chamber with mixer
JP2012140964A (en) Exhaust gas purifier
US10041390B2 (en) Catalyzed particulate filter
JP2016205188A (en) Exhaust emission control unit
JP2018115586A (en) Exhaust emission control device
US20140260198A1 (en) Exhaust aftertreatment system
JP6745401B2 (en) Exhaust purification device