[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN104955550A - 用于催化转化器绝缘件尺寸设计和定位的方法 - Google Patents

用于催化转化器绝缘件尺寸设计和定位的方法 Download PDF

Info

Publication number
CN104955550A
CN104955550A CN201480000174.6A CN201480000174A CN104955550A CN 104955550 A CN104955550 A CN 104955550A CN 201480000174 A CN201480000174 A CN 201480000174A CN 104955550 A CN104955550 A CN 104955550A
Authority
CN
China
Prior art keywords
substrate
catalytic converter
gas
combustion engine
inlet duct
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201480000174.6A
Other languages
English (en)
Inventor
S·普拉蒂
G·K·科亚纳吉
V·布拉格杰维克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vida Holdings Corp Ltd
Original Assignee
Vida Holdings Corp Ltd
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 Vida Holdings Corp Ltd filed Critical Vida Holdings Corp Ltd
Publication of CN104955550A publication Critical patent/CN104955550A/zh
Pending legal-status Critical Current

Links

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
    • 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
    • B01D53/9495—Controlling the catalytic process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • 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
    • F01N13/009—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 separate purifying devices arranged in series
    • F01N13/0097—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 separate purifying devices arranged in series 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
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • 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
    • 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
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/60—Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing

Landscapes

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

Abstract

基底被用于催化转化器容器并且具有内部催化区部分、外部催化区部分以及热隔离内部催化区部分和外部催化区部分的绝缘材料，圆筒形入口管道通向催化转化器容器。绝缘件延伸穿过基底，并且具有均一的剖面，所述均一的剖面基本上由两个假想圆柱体和基底的上游表面的相交部限定，每一个假想圆柱体具有：在入口管道直径的1.08和1.20之间的标称直径；1-4毫米的厚度；以及与在入口管道和容器相交之处的最大速率点上的气体方向对齐的轴线。假想圆柱体中的一个与在运行范围的下限处的气体流动相关，并且假想圆柱体中的另一个与在运行范围的上限处的气体流动相关。

Description

用于催化转化器绝缘件尺寸设计和定位的方法
技术领域
本发明涉及尾气处理领域。
背景技术
已知通过将绝缘层插置在催化转化器基底中而降低背压；在纳入本文加以参考的PCT/CA2013/000663的教导下，对于任何给定的应用场合，能够通过本领域的技术人员进行的常规实验而设计适合的绝缘件。
发明内容
形成本发明的一个方面的是用于加快在燃烧发动机的催化转化器基底中的绝缘层的设计，所述燃烧发动机具有包括上限和下限的运行功率范围，基底为在使用时基本上完全地占据除了扩散器锥体之外的催化转化器容器的类型，圆筒形入口管道通向所述催化转化器容器。所述方法包括以下步骤：
i.当燃烧发动机在运行功率范围的下限处运行时，确定在入口管道与催化转化器容器相交之处的最大气体速率点上的气体方向；
ii.当燃烧发动机在运行功率范围的上限处运行时，确定在入口管道与催化转化器容器相交之处的最大气体速率点上的气体方向；以及
iii.限定基准催化转化器基底。
在基准中：
●基底的外部催化区部分围绕基底的内部催化区部分；
●绝缘材料热隔离外部催化区和内部催化区；
●绝缘材料延伸穿过基底并且具有贯穿基底长度的均一剖面；
●均一剖面基本上由两个假想圆柱体和基底的上游表面的相交部限
定；
●每一个假想圆柱体具有：在入口管道直径的1.08和1.20之间的标称内直径；0.8-4毫米的厚度；以及与在入口管道和催化转化器容器相交之处的最大速率点上的气体方向对齐的轴线；
●假想圆柱体中的一个与在运行功率范围的下限处的气体流动相关，并且假想圆柱体中的另一个与在运行功率范围的上限处的气体流动相关。
形成本发明的另一个方面的为一种改进的催化转化器基底，基底是与燃烧发动机一同使用的类型，燃烧发动机具有包括上限和下限的运行功率范围；并且基底还是在催化转化器容器中使用的类型，圆筒形入口管道通向催化转化器容器。
改进包括：基底的内部催化区部分；基底的围绕内部催化区的外部催化区部分；以及热隔离内部催化区和外部催化区的绝缘材料。
绝缘材料延伸穿过基底，并且具有贯穿基底长度的均一剖面。均一的剖面基本上由两个假想圆柱体和基底的上游表面的相交部限定，每一个假想圆柱体具有：在入口管道直径的1.08和1.20之间的标称内直径；0.8-4毫米的厚度；以及与在入口管道和催化转化器容器相交之处的最大速率点上的气体方向对齐的轴线。假想圆柱体中的一个与在运行功率范围的下限处的气体流动相关，并且假想圆柱体中的另一个与在运行功率范围的上限处的气体流动相关。
一旦总览以下详细描述和附图(后者在下文中简略地描述)则本发明的优势、特征和特点对于本领域的技术人员来说将变得显而易见。
附图说明
图1示出示意性的轴向对称的催化转化器；
图2示出示意性的具有成一定角度的入口的催化转化器；
图3示出示意性的具有弯曲的入口的催化转化器；
图4为类似于图1的视图，示出在入口管道与容器相交之处在运行功率范围的下限处和运行功率范围的上限处的最大气体速率点；
图5为类似于图2的视图，示出在入口管道与容器相交之处在运行功率范围的下限处和运行功率范围的上限处的最大气体速率点；
图6为类似于图3的视图，示出在入口管道与容器相交之处在运行功率范围的下限处和运行功率范围的上限处的最大气体速率点；
图7示出类似于图1的示意性的催化转化器；
图7A为沿图1的段7A-7A的视图；
图8示出类似于图1的示意性的催化转化器；
图8A为沿图7的段8A-8A的视图；
图9示出类似于图1的示意性的催化转化器；
图9A为沿图9的段9A-9A的视图；
图10示出类似于图3的示意性的催化转化器；
图10A为沿图10的段10A-10A的视图；
图11A-D示出作为用于多种在图7中示出类型的催化转化器的绝缘位置的函数的入口背压。
具体实施方式
当前参考图1-3，所述图1-3示出示范性催化转化器系统，能够通过所述示范性催化转化器系统有用地部署本发明：
●图1示出示意性的轴向对称的催化转化器系统22A；
●图2示出示意性的具有成一定角度的入口的催化转化器系统22B；
●图3示出示意性的具有弯曲的入口的催化转化器系统22C。
每一个系统22A、22B和22C均包括容器24，所述容器24包括圆筒形壳体26以及一对扩散器锥体28以及基本上完全地占据容器24的蜂巢式陶瓷基底30。系统22A中的容器24通过与容器24的轴线对齐的圆筒形入口管道32A进行给送；在系统22B中，入口管道32B为圆筒形的，但是布置为与容器的轴线成角度α；并且在系统22C中，入口管道32C为弯曲的。
方法中的起始步骤涉及(在与催化转化器一同使用的任何给定发动机方面来说)确定在如下情况时最大气体速率点处的气体方向
●当发动机在所关注的运行功率范围的下限处时；以及
●当发动机在所关注的运行功率范围的上限处时。
运行范围根据应用场合的不同而变化，并且在一些情况下运行范围可以由单个的值限定。例如，固定式发动机(诸如发电机)经常以单个的功率设置进行使用，通常为所设计功率的60-80％，而大货运卡车在其大部分运行时间内以高速公路巡航功率水平(最大值的20-30％)运行。在普通乘用车的情况下，所使用的运行范围可以由通常的运行功率范围限定，即最大发动机功率的30％至80％之间的某一点。虽然能够通过测量确定气体的方向，但是一般说来将通过计算机流体动力学(CFD)建模来确定，原因在于插入测量装置本身能够产生流动干扰。
在图3中示出的催化转化器的情境中，在最大气体速率点Vmax1、Vmax2之间存在巨大的差别：在较低的气体速率处，在弯曲的管道中气体分子所暴露的离心力较低，并且在尾气分布的最大值Vmax1更接近管道的中心；在较高的气体速率处，离心力更强，并且尾气分布的最大值Vmax2更接近管道壁，如图6中所示。
CFD模拟示出：对于直径58毫米的弯曲的入口管道来说，低流动位置和高流动位置之间的差异为11毫米。
类似的模拟能够被用于图2和3的催化转化器，如在一些例外环境中可能发生一些背离，但是通常最大气体速率点(在高流动状态和低流动状态下)在两种情况下简单地与入口管道的中心线对齐，如图4和5中所示，其中Vmax1和Vmax2由相同的矢量限定。
通过已掌握的信息，设计了基准。在该基准中：
●基底的外管状外部催化区部分围绕基底的内部催化区部分；
●绝缘材料热隔离内部催化区和外部催化区；
●绝缘材料延伸穿过基底，并且具有贯穿基底长度的均一剖面；
●均一的剖面基本上由两个假想圆柱体和基底的上游表面的相交处限定；
●每一个假想圆柱体具有：在入口管道直径的1.08和1.20之间的标称内直径；0.8-4毫米的厚度；以及与在入口管道和容器相交之处在最大速率点上的气体方向对齐的轴线；
●假想圆柱体中的一个C1与在运行功率范围的下限处的气体流动相关，并且假想圆柱体中的另一个C2与在运行功率范围的上限处的气体流动相关。
用于图4-6的示范性系统的基准在图7-9中示出；在每一个基准中，外部区由Z0表示，内部区由Z1表示，并且绝缘层由I表示。
显而易见的是：在图1的转化器中，假想圆柱体C1和C2将为重合的并且限定绝缘圆柱体，如图7A中所表示的；在图2的转化器中，假想圆柱体C1和C2将为重合的并且限定椭圆形，如图8A中所表示的；并且在图6的转化器中，假想圆柱体将重叠但是不重合，并且绝缘体由两个突出部相互重叠的卵形C1C2限定，如图9A中所表示的.
图10中示出图9的变化方案，其中入口管道为弯曲的并且进入壳体的侧壁附近。如此定位导致由假想圆柱体C1和C2限定的卵形C1+C2的一部分突出至圆柱体壳体26之外，以使得仅有一段弧位于壳体26内。为了适应该流动区域的假想损失，该段弧的端点被彼此拉开(如图10中箭头A所表示)，直至围绕在该段弧和容器侧壁之间的区域等于初始卵形的区域为止。假如突出部位于容器之外，那么相同的调整应用于图8中示出的转化器类型。
不意欲被理论束缚的情况下，可以相信的是，基准将加快绝缘催化转化器基底的设计，原因在于这减少本领域的技术人员通过其他方式所需的常规实验过程。
已经实施了支持该结论的实验。例如，图11A-11D示出作为用于图7中示出类型的多种催化转化器的绝缘位置的函数的入口背压。图11A示出用于26毫米半径入口管道的结果。图11B示出用于29毫米半径入口管道的结果。图11C示出用于32毫米半径入口管道的结果。图11D示出用于35毫米半径入口管道的结果。所有其他模拟参数都是相等的，包括通过催化转化器的尾气温度和流率。
最佳的绝缘位置限定为在入口管道中距离催化转化器容器大致30厘米处产生最小区域平均背压的位置。在每一种情况下，最佳绝缘直径落入入口管道直径的1.08至1.20范围内。
虽然描述了本方法的特定实施例，并且描述了催化转化器基底的多种特定实施例，但是显而易见的是变化是可能的。
例如，虽然所述示例预期到圆筒形入口管道的可用性，但是所述方法将能用于稍微偏离完美圆筒形的管道；因此说明书和权利要求中的“圆筒形”应当被理解为剖面大体为圆筒形的任何管道。
额外地，虽然术语“内部”和“外部”被用于说明书和权利要求，但是应当理解的是在图10所预期的变化方案中，“外部”区是表示为位于绝缘件I上方的部分，“内部”区是表示为位于绝缘件I下方的部分；“内部”和“外部”为相对于入口管道轴线的远近。
因此，本发明应当被理解为仅被详尽地解释的附属权利要求限制。

Claims (2)

1.一种方法，所述方法用于：燃烧发动机，所述燃烧发动机具有包括上限和下限的运行功率范围以及基底，基底在使用时基本上完全地占据除了扩散器锥体之外的催化转化器容器，圆筒形入口管道从燃烧发动机通向催化转化器容器，所述方法包括以下步骤：
当燃烧发动机在运行功率范围的下限处运行时，确定在入口管道与催化转化器容器相交之处的最大气体速率点处的气体方向；
当燃烧发动机在运行功率范围的上限处运行时，确定在入口管道与催化转化器容器相交之处的最大气体速率点处的气体方向；以及
限定基准催化转化器基底，其中，在基准中：基底的外部催化区部分围绕基底的内部催化区部分；绝缘材料热隔离外部催化区和内部催化区；绝缘材料延伸穿过基底并且在整个基底长度上具有均一剖面；均一剖面基本上由两个假想圆柱体和基底的上游表面的相交部限定；
其中，每一个假想圆柱体具有：在入口管道直径的1.08和1.20之间的标称直径；1-4毫米的厚度；以及与在入口管道和催化转化器容器相交之处的最大速率点处的气体方向对齐的轴线；以及
假想圆柱体中的一个与在运行功率范围的下限处的气体流动相关，并且假想圆柱体中的另一个与在运行功率范围的上限处的气体流动相关。
2.一种改进的催化转化器基底，基底是与燃烧发动机一同使用的类型，燃烧发动机具有包括上限和下限的运行范围；并且基底还是在催化转化器容器中使用的类型，圆筒形入口管道通向催化转化器容器，其中改进之处包括：
基底的内部催化区部分；
基底的围绕内部催化区部分的外部催化区部分；
热隔离内部催化区部分和外部催化区部分的绝缘材料，
其中
绝缘材料延伸穿过基底，并且在整个基底长度上具有均一剖面；
均一的剖面基本上由两个假想圆柱体和基底的上游表面的相交部限定，每一个假想圆柱体具有：在入口管道直径的1.08和1.20之间的标称直径；1-4毫米的厚度；以及与在入口管道和催化转化器容器相交之处的最大速率点处的气体方向对齐的轴线；以及
假想圆柱体中的一个与在运行范围的下限处的气体流动相关，并且假想圆柱体中的另一个与在运行范围的上限处的气体流动相关。
CN201480000174.6A 2014-01-17 2014-01-17 用于催化转化器绝缘件尺寸设计和定位的方法 Pending CN104955550A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2014/000032 WO2015106332A1 (en) 2014-01-17 2014-01-17 Method for sizing and positioning catalytic converter insulation

Publications (1)

Publication Number Publication Date
CN104955550A true CN104955550A (zh) 2015-09-30

Family

ID=53542224

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201480000174.6A Pending CN104955550A (zh) 2014-01-17 2014-01-17 用于催化转化器绝缘件尺寸设计和定位的方法

Country Status (11)

Country Link
US (1) US9964012B2 (zh)
EP (1) EP3094402A4 (zh)
JP (1) JP2017504763A (zh)
KR (1) KR20160106788A (zh)
CN (1) CN104955550A (zh)
AU (1) AU2014201633A1 (zh)
BR (1) BR112014007859A2 (zh)
CA (1) CA2846642A1 (zh)
IN (1) IN2014MN01020A (zh)
RU (1) RU2650242C2 (zh)
WO (1) WO2015106332A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10883411B2 (en) 2018-06-06 2021-01-05 Ford Global Technologies, Llc Systems and methods for an exhaust-gas aftertreatment device
JP7267771B2 (ja) * 2019-02-27 2023-05-02 ダイハツ工業株式会社 自動車用内燃機関の触媒ケース

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009183832A (ja) * 2008-02-05 2009-08-20 Fuji Heavy Ind Ltd 排気ガス浄化用触媒担体

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853485A (en) * 1972-12-11 1974-12-10 Corning Glass Works Core member for catalytic oxidation converter
US5154894A (en) * 1991-08-19 1992-10-13 General Motors Corporation Variable cross section catalytic converter
JPH0561418A (ja) 1991-08-31 1993-03-12 Toshiba Lighting & Technol Corp 表示装置
JPH0561418U (ja) * 1992-01-24 1993-08-13 三菱自動車工業株式会社 排気ガス処理装置
JPH07251079A (ja) 1994-03-16 1995-10-03 Toyota Motor Corp 排気ガス浄化触媒用メタル担体および製造方法
US6024928A (en) 1998-06-15 2000-02-15 General Motors Corporation By-pass flow catalytic converter
US6938339B2 (en) * 2000-12-19 2005-09-06 Corning Incorporated Method and apparatus for forming an inlet and outlet face of a catalyst support
US6776689B2 (en) * 2000-12-29 2004-08-17 Corning Incorporated Method and apparatus for forming a ceramic catalyst support
JP2002292225A (ja) 2001-03-30 2002-10-08 Ngk Insulators Ltd ハニカム構造体及びそのアッセンブリ
JP3983117B2 (ja) 2001-07-31 2007-09-26 日本碍子株式会社 ハニカム構造体及びその製造方法
EP1312776A3 (en) 2001-11-16 2004-05-12 Isuzu Motors Limited Exhaust gas purification system
EP1604719B1 (en) 2002-03-15 2008-07-16 Ibiden Co., Ltd. Ceramic filter for exhaust gas purification
DE10331691B4 (de) 2003-07-14 2006-04-13 Audi Ag Abgaskatalysator für eine Abgasanlage einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges
US20050214178A1 (en) * 2004-03-26 2005-09-29 Labarge William J Catalytic converter system and method of making the same
US7238217B2 (en) * 2004-04-23 2007-07-03 Corning Incorporated Diesel engine exhaust filters
DE102005012066A1 (de) 2005-03-16 2006-09-21 Emitec Gesellschaft Für Emissionstechnologie Mbh Wabenkörper mit Mitteln zur Reaktandenzufuhr und entsprechendes Verfahren und Abgassystem
US8097055B2 (en) * 2007-10-29 2012-01-17 Caterpillar Inc. System for treating exhaust gas
BRPI0917334A2 (pt) * 2008-08-27 2015-11-17 Vida Holdings Corp Ltd aparelho conversor catalítico
ATE503549T1 (de) * 2008-11-04 2011-04-15 Umicore Ag & Co Kg Dieselpartikelfilter mit verbesserten staudruckeigenschaften
DE102009056183A1 (de) * 2009-11-27 2011-06-01 Emitec Gesellschaft Für Emissionstechnologie Mbh Abgasreinigungskomponente mit Umlenkfläche und Verfahren zu deren Herstellung
DE102010053603A1 (de) * 2010-11-12 2012-05-16 Bayerische Motoren Werke Aktiengesellschaft Katalysator
JP5411887B2 (ja) * 2011-03-23 2014-02-12 トヨタ自動車株式会社 触媒担持用構造体及び触媒コンバータ装置
US8440155B2 (en) * 2011-08-19 2013-05-14 Corning Incorporated Flow modulating substrates for early light-off
US8747760B2 (en) * 2011-11-10 2014-06-10 GM Global Technology Operations LLC Catalytic converter
DE102013208743B4 (de) * 2012-06-15 2015-06-18 Ford Global Technologies, Llc Vorrichtung zur Abgasnachbehandlung
BR112014011449A2 (pt) * 2012-07-19 2017-05-09 Vida Holdings Corp Ltd aparelho e método para redução de contrapressão de motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009183832A (ja) * 2008-02-05 2009-08-20 Fuji Heavy Ind Ltd 排気ガス浄化用触媒担体

Also Published As

Publication number Publication date
EP3094402A4 (en) 2017-08-23
AU2014201633A1 (en) 2015-08-06
BR112014007859A2 (pt) 2017-04-04
WO2015106332A1 (en) 2015-07-23
RU2014119378A (ru) 2015-11-20
KR20160106788A (ko) 2016-09-13
US9964012B2 (en) 2018-05-08
US20150285115A1 (en) 2015-10-08
EP3094402A1 (en) 2016-11-23
JP2017504763A (ja) 2017-02-09
RU2650242C2 (ru) 2018-04-11
IN2014MN01020A (zh) 2015-09-11
CA2846642A1 (en) 2015-07-17

Similar Documents

Publication Publication Date Title
US9309842B2 (en) Air inlet silencer for turbomachines
CN103867235B (zh) 一种管式减涡器引气系统
JP2010526274A5 (zh)
US9920643B2 (en) Distributor device for cooling air within an engine
JP2014181902A5 (zh)
JP2012149881A5 (zh)
JP2014040999A5 (zh)
EP2803402B1 (en) Electrically heated catalyst
US10465584B2 (en) Honeycomb structure body and method of designing honeycomb structure body
CN104955550A (zh) 用于催化转化器绝缘件尺寸设计和定位的方法
CN103046975A (zh) 排气扩散器
GB2518942A (en) Biconical exhaust cone for a civil aviation jet engine
JP2009168019A (ja) タービンホイール孔を塞ぐための装置
US8616844B2 (en) Fan and shroud assembly
CN103423206A (zh) 一种强制风扇离合器冷却的汽车风扇旋流罩总成
US10731535B2 (en) Honeycomb structure body and method of designing the same
CN108252955B (zh) 压气机用管式扩压器
JP2005256644A (ja) 車両用排気系におけるテールパイプ構造
CN104421544A (zh) 一种变径硅胶管
CN105649816A (zh) 一种新型二元塞式喷管塞式中心体冷却结构
CN204677321U (zh) 一种燃气发动机混合器
CN220687453U (zh) 用于发动机核心舱通风冷却的进气组件及航空发动机
KR101004936B1 (ko) 내연기관용 공기 와류 발생장치
JP2017166436A (ja) 排気導入管及びその製造方法、排気再循環装置
JP2008240588A (ja) 車両用消音器

Legal Events

Date Code Title Description
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
AD01 Patent right deemed abandoned

Effective date of abandoning: 20190924

AD01 Patent right deemed abandoned