Catalyst body and an exhaust system for a small-size engine and a method for producing the catalyst body
    1.
    发明申请
    Catalyst body and an exhaust system for a small-size engine and a method for producing the catalyst body 审中-公开
    用于小型发动机的催化剂体和排气系统以及催化剂体的制造方法

    公开(公告)号:US20070113540A1

    公开(公告)日:2007-05-24

    申请号:US10569646

    申请日:2004-08-26

    IPC分类号: F01N3/00

    摘要: The invention relates to a radial-flow annular catalyst body for installation in a muffler housing of a small-size engine, an exhaust system for a small-size engine and a method for producing the catalyst body. The catalyst body consists of a perforated metal foil. In a preferred embodiment, the perforations of the perforated metal foil are adjusted for sound reduction in such a way that the metal foil simultaneously assumes the function of a conventional reflection body. In a further preferred embodiment of the metal foil forming the catalyst body, webs for stiffening the metal foil are arranged between the perforations, which webs are adapted in such a way that they prevent any bulging of the metal foil in the installed state. In a further preferred embodiment, the ends of the metal foil are joined in a detachable interlocking connection. For producing the catalyst body in accordance with the invention, the catalyst body is bent in an annular way from a perforated metal foil strip. Thereafter the ends of the strip are joined by means of an interlocking connection. In a preferred production method, the perforated metal foil strip is cut, punched or broken from previously applied perforation points from endless merchandise. The production from endless merchandise allows a continuous coating process and especially considerable cost savings. The metal foil which can be adapted for sound reduction as a replacement for a conventional muffler unit also has favorable stability properties in addition to the catalytic effect. A conventional reflection body can be omitted because the perforations can be adapted for sound reduction and pollutant reduction. One component of a conventional exhaust system can thus be omitted.

    摘要翻译: 本发明涉及一种用于安装在小型发动机的消声器壳体中的径向流动环形催化剂体,用于小型发动机的排气系统以及用于制造催化剂体的方法。 催化剂体由穿孔的金属箔组成。 在优选实施例中,为了减少金属箔而同时承担常规反射体的功能,调整穿孔金属箔的穿孔。 在形成催化剂体的金属箔的另一个优选实施方案中,用于加强金属箔的网被布置在穿孔之间,该网被适配成使得它们防止金属箔在安装状态下的任何凸起。 在另一优选实施例中,金属箔的端部以可拆卸的互锁连接方式接合。 为了制造根据本发明的催化剂体,催化剂体从穿孔金属箔带以环形方式弯曲。 此后,条带的端部通过互锁连接连接。 在优选的制造方法中,穿孔金属箔带从先前施加的穿孔点从无尽商品切割,冲压或断裂。 无限商品的生产允许连续涂布工艺,特别是可观的成本节约。 除了催化效果之外,可用于声音还原的金属箔作为常规消声器单元的替代物也具有良好的稳定性。 可以省略常规的反射体,因为穿孔可以适用于减少声音和减少污染物。 因此可以省略常规排气系统的一个部件。

    Metallic carrier for catalysts or particle separators and the use of this carrier
    2.
    发明申请
    Metallic carrier for catalysts or particle separators and the use of this carrier 审中-公开
    用于催化剂或颗粒分离器的金属载体以及该载体的使用

    公开(公告)号:US20090298686A1

    公开(公告)日:2009-12-03

    申请号:US12473742

    申请日:2009-05-28

    申请人: Matthias Mangold

    发明人: Matthias Mangold

    IPC分类号: B01J21/02

    摘要: A metallic carrier for a catalytic converter or particle separator and the use of a metallic carrier for exhaust gas cleaning of internal combustion engines, especially diesel engines, is provided. The metallic carrier comprises an aluminum alloy having an aluminum content of 75 to 99.5 percent by mass. The metallic carrier helps achieve an advantageous reduction in the mass of the carrier and thermal capacity, as a result of which the light-off temperature is reached more rapidly. The reduction of mass and thermal capacity is not at the expense of a reduction in the catalytic carrier surface.

    摘要翻译: 提供了用于催化转化器或颗粒分离器的金属载体以及使用用于内燃机,特别是柴油发动机的废气净化的金属载体。 金属载体包括铝含量为75〜99.5质量%的铝合金。 金属载体有助于实现载体质量和热容量的有利的降低,结果使得起火温度更快地达到。 质量和热容量的降低不以牺牲催化载体表面为代价。