Process for accelerating the response of an exhaust gas catalyst, and
apparatus and electrically heatable carrier bodies for performing the
method
    4.
    发明授权
    Process for accelerating the response of an exhaust gas catalyst, and apparatus and electrically heatable carrier bodies for performing the method 失效
    用于加速排气催化剂的反应的方法,以及用于实施该方法的装置和电热载体体

    公开(公告)号:US5146743A

    公开(公告)日:1992-09-15

    申请号:US604060

    申请日:1990-10-25

    摘要: A method of accelerating the response of an exhaust gas catalyst downstream of an internal combustion engine, the exhaust gas catalyst having at least one metal catalyst carrier body coated with ceramic and catalytically active material having a given response temperature, and the carrier body having at least one subzone, the method includes supplying electric power to the metal catalyst carrier body for direct heating at least in subzones thereof, switching on the current for a period of time at least as early as immediately after the onset of engine operation, and dimensioning the current such that at least subzones of the metal carrier body are heated to the given response temperature at least as early as the exhaust gas reaches the given response temperature. The apparatus for performing the above method includes a main catalyst and an electrically heatable precatalyst disposed upstream of the main catalyst as seen in the flow direction of the exhaust gas. The electrically heated precatalyst carrier body comprises layered metal sheets forming a stack with a plurality of channels through which a fluid can flow, the metal sheets having a thickness of substantially 0.03 to 0.06 mm, insulators for electrically subdividing the catalyst carrier body for forming at least one electric current path through the metal sheets, the current path having an electric resistance of substantially between 0.2 and 2.OMEGA..

    摘要翻译: 一种加速内燃机下游的排气催化剂的响应的方法,所述排气催化剂具有至少一个涂有陶瓷的金属催化剂载体体和具有给定反应温度的催化活性材料,载体至少具有 一个子区域,该方法包括向金属催化剂载体主体供给至少在其子区域直接加热的电力,至少在发动机运转开始之后将电流接通一段时间,并且将电流 使得至少在废气达到给定的响应温度时,至少将金属载体的子区域加热至给定的响应温度。 用于执行上述方法的装置包括主催化剂和设置在主催化剂上游的电可加热预催化剂,如在排气的流动方向上所见。 电加热的预催化剂载体主体包括层叠的金属片,其形成具有多个通道的堆叠,流体可以流过该金属片,金属片具有基本上为0.03至0.06mm的厚度,绝缘体用于电催化剂载体主体用于电分割 通过金属片的一个电流路径,电流路径具有基本上在0.2和2欧米茄之间的电阻。

    Metal catalyst carrier body having a shortened jacket tube and a method
of producing the same
    6.
    发明授权
    Metal catalyst carrier body having a shortened jacket tube and a method of producing the same 失效
    具有缩短的护套管的金属催化剂载体主体及其制造方法

    公开(公告)号:US4948353A

    公开(公告)日:1990-08-14

    申请号:US144503

    申请日:1988-01-15

    IPC分类号: F01N3/28

    摘要: A metal catalyst carrier body assembly and a method of producing the same includes a metal catalyst carrier body having a given length, two end surfaces and a honeycomb structure formed of textured metal sheets through which gas can flow. A jacket tube surrounds the honeycomb structure and is shorter than the given length. At least a portion of the end surfaces is brazed. The jacket tube has ends each being disposed at a distance from a respective one of the end surfaces being greater than the brazed portion.

    摘要翻译: 金属催化剂载体主体组件及其制造方法包括具有给定长度的金属催化剂载体主体,两个端面和由纹理金属板形成的蜂窝结构,气体可以通过该金属板流动。 护套管围绕蜂窝结构并且比给定长度短。 至少一部分端面被钎焊。 护套管的端部各自设置在与相应的一个端面相距一定距离处,大于钎焊部分。

    Mounting for a metallic exhaust gas catalyst carrier body and method for
manufacturing the same
    7.
    发明授权
    Mounting for a metallic exhaust gas catalyst carrier body and method for manufacturing the same 失效
    金属废气催化剂载体的安装及其制造方法

    公开(公告)号:US4795615A

    公开(公告)日:1989-01-03

    申请号:US70034

    申请日:1987-07-06

    摘要: A mounting assembly for an exhaust gas catalyst and a method for manufacturing the same includes a metallic exhaust gas catalyst carrier body formed of a multiplicity of layers, at least one first brazed joint interconnecting the layers, a metallic tubular jacket in which the catalyst carrier body is disposed, and one second brazed joint fastening the catalyst carrier body to the tubular jacket while permitting lengthwise expansion of the catalyst carrier body relative to the tubular jacket.

    摘要翻译: 用于废气催化剂的安装组件及其制造方法包括由多层形成的金属废气催化剂载体主体,至少一个互连这些层的第一钎焊接头,金属管状夹套,催化剂载体主体 并且一个第二钎焊接头将催化剂载体主体固定到管状护套上,同时允许催化剂载体相对于管状护套纵向膨胀。

    Catalyst carrier body with sleeve and shortened tubular jacket and catalytic converter having the catalyst carrier body
    9.
    发明授权
    Catalyst carrier body with sleeve and shortened tubular jacket and catalytic converter having the catalyst carrier body 有权
    具有套筒的催化剂载体和缩短的管状夹套以及具有催化剂载体的催化转化器

    公开(公告)号:US07241427B2

    公开(公告)日:2007-07-10

    申请号:US10234548

    申请日:2002-09-04

    IPC分类号: B01D50/00

    摘要: A catalyst carrier body includes a honeycomb body having sheet-metal layers and an axial extent. The sheet-metal layers are at least partly structured in such a way that the honeycomb body has passages through which an exhaust gas can flow. The sheet-metal layers of the honeycomb body have end regions lying radially outwardly. A tubular jacket has an edge and an axial span shorter than the axial extent of the honeycomb body. The tubular jacket is connected to the honeycomb body in at least one axial partial-region by a joining technique. A sleeve has an axial length shorter than the axial extent of the honeycomb body and is disposed on an outer region of the honeycomb body, in the vicinity of an end surface. The sleeve has an inner shell surface connected by a joining technique to the end regions of the sheet-metal layers at the end surfaces. The honeycomb body projects beyond an edge of the tubular jacket in a projecting section surrounded by the sleeve. In this way, stresses between the honeycomb body and the tubular jacket are avoided even with high thermal loads on the catalyst carrier body. A catalytic converter having the catalyst carrier body is also provided.

    摘要翻译: 催化剂载体主体包括具有片状金属层和轴向范围的蜂窝体。 至少部分地将片状金属层构造成使得蜂窝体具有排气可以流过的通路。 蜂窝体的片金属层具有径向向外的端部区域。 管状护套具有比蜂窝体的轴向长度短的边缘和轴向跨度。 管状护套通过接合技术在至少一个轴向部分区域中连接到蜂窝体。 套筒具有比蜂窝体的轴向长度短的轴向长度,并且在端面附近设置在蜂窝体的外部区域。 套筒具有通过接合技术连接到端面处的金属板层的端部区域的内壳表面。 蜂窝体在由套管包围的突出部分中突出超过管状护套的边缘。 以这种方式,即使在催化剂载体主体上具有高的热负载,也避免了蜂窝体和管状护套之间的应力。 还提供了具有催化剂载体的催化转化器。

    Process for the production of a honeycomb body formed of sheet metal layers of at least partly laminated structure
    10.
    发明授权
    Process for the production of a honeycomb body formed of sheet metal layers of at least partly laminated structure 失效
    用于生产由至少部分层压结构的金属板形成的蜂窝体的方法

    公开(公告)号:US06224691B1

    公开(公告)日:2001-05-01

    申请号:US09028232

    申请日:1998-02-23

    IPC分类号: F01N328

    摘要: A honeycomb body is produced in which metal sheets are stacked and/or wound in a layered configuration. The metal sheets are suitably structured so as to form passages through which a fluid can flow. At least a part of the sheet layers initially comprises a laminate material with a layer of chromium-containing steel and a layer primarily formed of aluminum. The laminate is substantially homogenized by diffusion to a stratified sheet in a subsequent heat treatment. The honeycomb body is assembled with at least a part of the sheet layers provided a structure which increases the degree of elasticity of the honeycomb body and/or the pressure in relation to surface area of the contact locations prior to and in the heat treatment. The honeycomb body is fitted into a tubular casing with such a prestressing that in the heat treatment the contact locations between the sheet layers remain in contact.

    摘要翻译: 制造以层叠构造层叠和/或卷绕金属板的蜂窝体。 金属片适当地构造成形成流体可以流过的通道。 片层的至少一部分最初包括具有含铬钢层和主要由铝形成的层的层压材料。 在随后的热处理中,层压体通过扩散基本均匀化成分层片材。 蜂窝体组装有至少一部分片层,其提供了增加蜂窝体的弹性程度和/或相对于热处理之前和之后的接触位置的表面积的压力的结构。 蜂窝体被装配到具有预应力的管状壳体中,在热处理中,片层之间的接触位置保持接触。