CN102425477A - 具有用于热废气氧传感器的安装装置的催化转换器 - Google Patents

具有用于热废气氧传感器的安装装置的催化转换器 Download PDF

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CN102425477A
CN102425477A CN2011104397454A CN201110439745A CN102425477A CN 102425477 A CN102425477 A CN 102425477A CN 2011104397454 A CN2011104397454 A CN 2011104397454A CN 201110439745 A CN201110439745 A CN 201110439745A CN 102425477 A CN102425477 A CN 102425477A
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protuberance
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CN102425477B (zh
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蒂莫西·S·巴尔克
佩妮拉·S·沙利文
托马斯·A·科思伦
布雷德利·B·沃尔沃思
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Tenneco Automotive Operating Co Inc
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    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • 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
    • F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust 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
    • 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
    • F01N13/14—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
    • F01N13/141—Double-walled exhaust pipes or housings
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/18—Methods or apparatus for fitting, inserting or repairing different elements by using quick-active type locking mechanisms, e.g. clips
    • 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

Abstract

一种催化转换器，具有保持上游催化材料和下游催化材料携载基底(310a、310b)或基块的壳体(300)，并且包括位于所述基底(310a、310b)之间的环(100)，所述环(100)中具有用于容纳中置氧传感器的间隙。所述环(100)将绝热材料层(500)捕集在所述环(100)与所述转换器壳体(300)或围绕基底之间的间隙的壳体表面之间。所述环(100)通过焊接或机械联接在多个凸起(104a-104b)处联接于所述壳体(300)。

Description

具有用于热废气氧传感器的安装装置的催化转换器
本申请是申请人为田纳科汽车运营公司、申请日为2007年10月23日的中国专利申请No.200780040718.1的分案申请。
相关申请的交叉引用
本申请要求2007年9月18日提交的美国专利申请No.11/856,931以及2006年12月1日提交的美国临时申请No.60/872,588的优先权，通过参考的方式在此将这两个申请引入。
技术领域
本公开涉及汽车催化转换器。更具体地，本公开有关于一种转换器，其具有将热废气氧传感器安装在两片或两块催化材料携载基底之间的能力。
背景技术
本节的描述仅提供涉及本公开的背景信息，并可不构成现有技术。
现有的车辆排放监测系统利用位于催化转换器的任一端(即上游和下游)的排放监测氧传感器来监测转换器性能。随着政府规章的最近改变，汽车制造商现在需要中置传感器，即安装在转换器壳体内的两块催化材料携载基底之间的传感器。由于上游基底的催化剂易于比下游基底的催化剂退化得快，因此这种设置提供改进了的转换器性能测定。
在过去，提供中置传感器安装装置提出了来自基底之间的壳体区域中的转换器壳体的热辐射的管理问题。因此可以看到转换器领域中的需要：提供一种附加地提供废气流与位于中间区域的转换器壳体之间的绝热的中置传感器安装设置。
发明内容
具有保持上游催化基底和下游催化基底的壳体的催化转化器包括位于所述基底之间的环，环中具有用于容纳中置氧传感器的间隙。所述环将绝热材料层捕集在环与转换器壳体或围绕基底之间的间隙的壳体表面之间。环通过使用多个朝向壳体延伸的环凸起联接于壳体。
通过此处提供的说明，更多的应用领域将变得显而易见。应当理解，说明书和具体示例旨在仅用作说明目的，而不意在限制本公开的范围。
附图说明
此处所示的附图仅用作说明用途，并不意在以任何方式限制本公开的范围。
通过阅读结合附图的详细说明，本教导的目的和特征将变得显而易见，在附图中：
图1A-1D示出了根据所公开的教导的原理设置的转换器绝热环和传感器安装装置的各种等轴视图；
图2A-2D示出了根据所公开的教导的原理设置的替代性的转换器绝热环和传感器安装装置的各种等轴视图；
图3A-3B分别示出了根据所公开的教导的原理设置的催化转换器的侧视立体图和侧视剖视图；
图4是图3A-3B的转换器的局部剖视立体图；
图5是图4的转换器中的安装环的安装凸起区域中的一个的剖视图；
图6是类似于图5的剖视图；
图7是根据所公开的教导的原理设置的替代性的转换器的局部剖视立体图；
图8是图7的转换器中的安装环的安装凸起区域中的一个的剖视图；
图9是类似于图8的剖视图。
具体实施方式
参照图1A-1D，示出了用于保持绝热件和安装氧传感器的环并将所述环标为100。环100包括间隙102，间隙102用于容纳穿过转换器的壳体并在壳体内在催化基底之间延伸的氧传感器。多个凸起区域——在这种情况下为4个凸起区域104a-104d——绕环100沿周向间隔开，环100在所述凸起区域104a-104d处以将在下文讨论的方式联接至转换器壳体。
环100在它自身和转换器壳体之间形成通道110，用于将绝热材料层定位在环和容纳壳体之间。
图2A-2D类似于图1A-1D但示出了环200，由图2D可见，环200的凸起呈更加平滑的曲线形状。由于图2A-2D中公开的凸起形状易于制造，因此是优选的。相比于图1D的凸起104a，凸起区域204a具有更少的尖角。通过图2D的这种设置，在环的模压期间金属破损的可能性更小。
参照图3A和图3B，催化转换器300具有容纳被中间间隙308分开的第一催化材料携载基底310a和第二催化材料携载基底310b的中央壳体。绝热环100包括与传感器安装凸台306连通的间隙。传统地，转换器300包括输入锥形部302和输出锥形部304。凸台306容纳延伸至间隙308中的氧传感器(未示出)。通过这种方式，上游传感器和安装在凸台306处的传感器用来监测催化基底310a的性能。
图4是图3A-3B的转换器的局部剖视立体图，并且是基本朝向基底310b在中间部分截取的视图。多个穿孔502a-502d绕位于环100外的转换器壳体300间隔开，所述穿孔502a-502d位于环100的各个凸起区域104a-104d之外。由图4可见，各个凸起均具有形成于其中的凹座或按钮105a-105d，用于容纳在容纳壳体300中相应的穿孔502a-502d中。绝热件500在该中间区域中捕集在环100与转换器壳体300之间。传感器安装凸台306位于环100中的间隙处并容纳氧传感器(未示出)。一旦环100及其凸起区域按钮105被适当地安置并插入在开口502中，便在各个开口502处进行熔焊。例如，熔化极惰性气体保护(MIG)焊机能够通过使熔融材料流过穿孔502使其流动至按钮区域105上，从而将环100附连至壳体300。
图5以更放大的细节示出了凸起区域104a。
图6与图5基本相同。
参照图7至9，示出了用于环100的替代性安装装置。在图7至9的实施方式中，环100通过机械联接而不是焊接联接于壳体300。在各个凸起区域104处的机械联接均通过使用一对工具——壳体300外侧的公工具和与公工具相对、压靠在安装环100的内表面上的母工具实现。通过使用这些工具，在各个凸起位置处，壳体300通过压靠在壳体300的外表面上的公工具在802处形成凹口，而环100则变形以形成U形部702a，U形部702a通过腿部704a和705a以卷边的方式围绕凹口802，从而实现环100和壳体100之间的机械连接。
已经参照前述的仅用作示例的实施方式对本发明进行了描述。通过合理地解释权利要求，本发明的范围和精神将变得显而易见。

Claims (7)

1.一种催化转换器，包括：
包括多个径向向内延伸的突出部的壳体；
位于所述壳体内并被中间间隙分开的上游催化基底和下游催化基底；
具有间隙的环，所述间隙与所述壳体中的开口对齐，所述环适于容纳穿过该环延伸到中间间隙中的废气传感器；
多个环凸起，所述环凸起从所述环径向向外延伸并且可操作成能够在多个相似的位置处将所述环联接至所述壳体；以及
绝热材料层，所述绝热材料层在成对的所述凸起之间定位于所述环与所述壳体之间，其中每个所述凸起均包括凹部，所述凹部以卷边的方式容纳相应的突出部的至少一部分。
2.如权利要求1所述的催化转换器，其中，所述凸起没有尖角。
3.如权利要求1所述的催化转换器，其中，所述突出部由所述壳体中的径向向内延伸的凹口限定。
4.如权利要求3所述的催化转换器，其中，所述凹口不延伸穿过所述壳体，使得所述突出部包括不中断的壁。
5.如权利要求1所述的催化转换器，其中，每个凹部均包括围绕所述突出部中的每一个的大致U形横截面，以实现所述环和所述壳体的之间的机械连接。
6.如权利要求1所述的催化转换器，其中，每个凹部均位于相应的凸起的末端。
7.如权利要求1所述的催化转换器，其中，每个突出部均包括扩大的末端，通过使所述环绕每个扩大的末端机械地变形而将所述扩大的末端保持在所述凹部中相应的一个凹部中。
CN201110439745.4A 2006-12-01 2007-10-23 具有用于热废气氧传感器的安装装置的催化转换器 Expired - Fee Related CN102425477B (zh)

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US87258806P 2006-12-01 2006-12-01
US60/872,588 2006-12-01
US11/856,931 US7897117B2 (en) 2006-12-01 2007-09-18 Catalytic converter with mounting device for a hot exhaust gas oxygen sensor
US11/856,931 2007-09-18

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CN101534924A (zh) 2009-09-16
CA2670740C (en) 2013-03-26
MX2009005744A (es) 2009-08-27
CA2670740A1 (en) 2008-06-12
DE112007002860T5 (de) 2009-10-08
WO2008069873A3 (en) 2008-07-24
JP2010511825A (ja) 2010-04-15
WO2008069873A2 (en) 2008-06-12
CN102425477B (zh) 2014-01-15
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CN101534924B (zh) 2012-09-05
US7897117B2 (en) 2011-03-01

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