Ceramic exhaust filter
    24.
    发明申请
    Ceramic exhaust filter 失效
    陶瓷排气过滤器

    公开(公告)号:US20040079060A1

    公开(公告)日:2004-04-29

    申请号:US10281179

    申请日:2002-10-28

    发明人: Gordon S. Alward

    IPC分类号: B01D046/00

    摘要: An improved, efficient, and regenerable exhaust emission filter and filter system are provided which incorporate the use of an inorganic, non-woven fiber filter element. The filter is able to capture exhaust pollutants and particulates through the interwoven nature of the filter element and due to area enhancements applied to the filter element including microscopic enhancements. The filter has an improved life and is able to combust a greater percentage of trapped particulates due to the high temperatures the filter element can withstand. The filter element if formed from a non-woven fiber block which is machined or shaped into a filter foundation. The filter element can have a multitude of coatings and catalysts applied and can be wrapped in insulation and a casing. The improved exhaust emission filter is particularly useful for diesel engine exhausts.

    摘要翻译: 提供了一种改进的,有效的和可再生的废气排放过滤器和过滤器系统,其结合使用无机,无纺纤维过滤元件。 过滤器能够通过过滤元件的交织性质捕获废气污染物和颗粒,并且由于应用于过滤元件的区域增强,包括微观增强。 过滤器具有改善的使用寿命,并且由于过滤器元件可承受的高温,能够燃烧更多百分比的被捕获的微粒。 过滤元件如果由被机加工或成型为过滤器基底的无纺纤维块形成。 过滤元件可以具有大量的涂层和催化剂,并且可以被包裹在绝缘体和套管中。 改进的废气排放过滤器特别适用于柴油发动机排气。

    Exhaust gas purification device for internal combustion engines
    25.
    发明授权
    Exhaust gas purification device for internal combustion engines 失效
    内燃机废气净化装置

    公开(公告)号:US5953906A

    公开(公告)日:1999-09-21

    申请号:US875930

    申请日:1997-08-08

    摘要: The invention concerns a device for reducing the amount of soot particles discharged from the exhaust gas system of an internal combustion engine. Owing to the addition of an additive to the fuel, the ignition temperature of the soot particles during afterburning is reduced to between approximately 300 and 350.degree. C., so dropping far below the normal operating temperature of the unit. Consequently the regeneration process of the filter in the unit starts comparatively early. An essential component of the present invention is the so-called deep-bed filter which is composted of a plurality of rolled-up tubes of special ceramic thread and a heat-resistant resilient steel wire. The special production method and special construction of the ceramic stack according to the invention guarantee a satisfactory useful life of the soot filter which withstands vibrations and mechanical stresses.

    摘要翻译: PCT No.PCT / DE96 / 00218 Sec。 371日期:1997年8月8日 102(e)日期1997年8月8日PCT提交1996年2月10日PCT公布。 第WO96 / 24755号公报 日期1996年8月15日本发明涉及一种用于减少从内燃机排气系统排出的烟灰颗粒量的装置。 由于向燃料中添加添加剂,在再燃后的烟灰颗粒的点火温度降低到约300和350℃之间,因此远低于单元的正常工作温度。 因此,单元中的过滤器的再生过程相对较早地开始。 本发明的一个重要组成部分是所谓的深层过滤器,它由多条特殊陶瓷丝卷绕管和耐热弹性钢丝组成。 根据本发明的陶瓷堆的特殊制造方法和特殊结构保证了耐磨损和机械应力的烟尘过滤器的令人满意的使用寿命。

    Exhaust gas purification filter
    27.
    发明授权
    Exhaust gas purification filter 失效
    废气净化过滤器

    公开(公告)号:US5486220A

    公开(公告)日:1996-01-23

    申请号:US254162

    申请日:1994-06-06

    摘要: An exhaust gas purification filter comprising a metal porous body obtained by packing and fixing metal fibers having a mean fiber diameter of 5 to 40 .mu.m or heat resistant ceramic fibers having a mean fiber diameter of 1 to 40 .mu.m in a dispersed state into pores of a foamed structure porous body made of a heat-resistant metal so that a packing density of the resulting metal porous body is from 5 to 20%. The filter may be in a laminated structure by laminating the foregoing foamed structure porous body filled with or without the metal or ceramic fibers and a fiber structure porous body obtained by fixing metal fibers having a mean diameter of 5 to 40 .mu.m or heat-resistant ceramic fibers having a mean diameter of 1 to 40 .mu.m in a dispersed state so that a packing density is from 5 to 25% are laminated. By using the inventive filter for collecting PM (dry soot, fine particles and SOF) contained in an exhaust gas of a Diesel engine, a pressure loss for the exhaust gas is minimized while high collection efficiency is kept.

    摘要翻译: 一种废气净化过滤器,包括通过将平均纤维直径为5〜40μm的金属纤维或平均纤维直径为1〜40μm的耐热陶瓷纤维以分散状态包封固定而成的金属多孔体, 的由耐热金属制成的发泡结构多孔体,使得所得金属多孔体的填充密度为5〜20%。 过滤器可以通过层压上述填充有或不含有金属或陶瓷纤维的泡沫结构多孔体和通过固定平均直径为5至40μm的金属纤维或耐热性而获得的纤维结构多孔体来形成层压结构 在分散状态下具有平均直径为1〜40μm的陶瓷纤维,使得填充密度为5〜25%。 通过使用本发明的过滤器来收集柴油发动机的废气中所含的PM(干烟尘,细粒子,SOF),能够使废气的压力损失最小化,同时保持高的收集效率。