Particulate trap for diesel engine
    1.
    发明授权
    Particulate trap for diesel engine 失效
    柴油发动机颗粒捕集器

    公开(公告)号:US5709722A

    公开(公告)日:1998-01-20

    申请号:US655738

    申请日:1996-05-30

    摘要: A particulate trap for diesel engine use which is less likely to vibrate or deform under exhaust pressures achieves goods results in particulate trapping properties, pressure drop, durability and regenerating properties. This trap has a filter element having a plurality of flat or cylindrical filters of three-dimensionally reticulated porous member. Longitudinally extending exhaust incoming and outgoing spaces are defined alternately between the adjacent filters by alternately closing the inlet and outlet ends of the spaces between the adjacent filters. Gas permeable reinforcing members are inserted in the exhaust outgoing spaces to prevent the filter from being deformed due to the difference between the pressure upstream and downstream of each filter produced when exhausts pass through the filters. Similar gas permeable reinforcing members may also be inserted in the exhaust incoming spaces or at both ends of the filter element to more positively prevent vibration of the filters.

    摘要翻译: 用于柴油发动机的颗粒捕集器,其在排气压力下不太可能振动或变形,从而产生颗粒捕集性能,压降,耐久性和再生性能。 该捕集器具有过滤元件,其具有多个三维网状多孔构件的平坦或圆柱形过滤器。 通过交替地关闭相邻过滤器之间的空间的入口端和出口端,在相邻的过滤器之间交替地限定纵向延伸的排气入口和出口空间。 气体可渗透的加强构件被插入在排气出口空间中,以防止过滤器由于当排气通过过滤器时产生的每个过滤器的上游和下游的压力之间的差异而变形。 类似的气体可渗透的加强构件也可以插入到排气进入空间或过滤元件的两端,以更积极地防止过滤器的振动。

    Filter member for purifying exhaust gas and method for manufacturing the
same
    4.
    发明授权
    Filter member for purifying exhaust gas and method for manufacturing the same 失效
    净化废气的过滤构件及其制造方法

    公开(公告)号:US5830415A

    公开(公告)日:1998-11-03

    申请号:US390995

    申请日:1995-02-21

    摘要: The present invention provides a car exhaust purifying filter member which is high in the capacity to collect solid and liquid contents in exhausts and which has such high heat resistance as to be capable of withstanding heat when burned for cleaning and a method of manufacturing the same. A three-dimensional mesh-like metallic porous member made from Ni--Cr--Al and having a three-dimensional framework is heated at 800-1000 .degree. C. in the atmosphere to form on its surface a densely grown fibrous alumina crystal. This member is used as a filter member. Such a filter member shows excellent collecting capacity and corrosion resistance and can withstand high temperatures. Also, it is possible to firmly carry a catalyst on the fibrous alumina crystal formed on the surface. Because of its increased surface area, it has an increased catalyst carrying capacity.

    摘要翻译: 本发明提供了一种汽车排气净化过滤器构件,其具有在排气中收集固体和液体内容物的能力高,并且具有如此高的耐热性,以便在被清洁时能够承受热量及其制造方法。 将由Ni-Cr-Al制成并具有三维骨架的三维网状金属多孔构件在大气中在800-1000℃下加热,在其表面上形成致密生长的纤维状氧化铝晶体。 该构件用作过滤构件。 这种过滤器构件显示出优异的收集能力和耐腐蚀性,并且能够承受高温。 此外,可以在形成在表面上的纤维状氧化铝晶体上牢固地携带催化剂。 由于其表面积增加,催化剂承载能力增加。