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    • 3. 发明授权
    • Apparatus for the separation of particles contained in exhaust gases of internal combustion engines
    • 用于分离包含在内燃机废气中的颗粒的装置
    • US08444734B2
    • 2013-05-21
    • US12278926
    • 2007-02-15
    • Shadi SaberiAlexander BöhmDirk NaumannLloyd Timberg
    • Shadi SaberiAlexander BöhmDirk NaumannLloyd Timberg
    • B01D46/00B01D53/92
    • F01N3/0222F01N2330/00F01N2330/06F01N2330/48F01N2510/00F01N2510/02Y02T10/20
    • The invention relates to an apparatus for the separation of particles contained in exhaust gases of internal combustion engines in which the exhaust gas flow is guided through a filter medium in which particles can be absorbed and held back. The invention should improve the separation in a cost effective manner with respect to conventional particle filters. In accordance with the invention, the filter medium (1) is made from a metal open-pore foam having at least two layers (1.1, 1.2, 1.3) which each have a thickness, porosity and/or pore size in the flowthrough direction through the filter medium which differ from one another. In one embodiment, the particle filter includes first and second filter medium layers where the first filter medium has a mean pore size larger than a mean pore size of the second filter medium, and the first filter medium has a thickness that increases in a direction of the exhaust gas flow inlet passage of the filter housing.
    • 本发明涉及一种用于分离包含在内燃机废气中的颗粒的装置,其中废气流被引导通过其中可吸收和阻止颗粒的过滤介质。 本发明应该以成本有效的方式相对于传统的颗粒过滤器改进分离。 根据本发明,过滤介质(1)由具有至少两层(1.1,1.2,1.3)的金属开孔泡沫制成,每层具有穿过方向通过的厚度,孔隙率和/或孔径 过滤介质彼此不同。 在一个实施例中,颗粒过滤器包括第一和第二过滤介质层,其中第一过滤介质的平均孔径大于第二过滤介质的平均孔径,第一过滤介质的厚度在 过滤器壳体的废气流入口通道。