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    • 10. 发明申请
    • Diesel Particle Filter with a Ceramic Filter Body
    • 具有陶瓷过滤器体的柴油颗粒过滤器
    • US20080141638A1
    • 2008-06-19
    • US11945371
    • 2007-11-27
    • Jochen LinhartKarin GerlachAndreas Franz
    • Jochen LinhartKarin GerlachAndreas Franz
    • B01D46/52
    • B01D46/527B01D2279/30F01N3/0222Y02T10/20
    • A diesel particle filter having a ceramic filter body (1) made of a ceramic material (6) for filtering an exhaust gas stream (2) of a diesel engine. The filter body (1) has gas channels (18, 18′) with planar and porous filter segments (3), which are provided for the exhaust gas stream (2) to flow through them transversely to the face of the filter segments (3). The filter body (1) is formed by sintering at least one ceramic-impregnated fiber web (4), particularly paper, under heat such that fibers (5) of the fiber material are burned off and the ceramic material (6) is sintered together to form the continuously porous and gas-permeable filter segment (3) between its two surfaces (7, 8). At least one fiber web (4) is corrugated to form the gas channels (18, 18′) and rolled up to form the filter body (1), and the cross section of at least a portion of the gas channels (18, 18′) changes from an inlet end (33) to a discharge end (34).
    • 一种柴油颗粒过滤器,具有由用于过滤柴油发动机的废气流(2)的陶瓷材料(6)制成的陶瓷过滤体(1)。 过滤器主体(1)具有带有平面和多孔过滤器段(3)的气体通道(18,18'),其被设置用于废气流(2)横向流过过滤器段(3)的表面 )。 过滤体(1)通过在加热下烧结至少一种陶瓷浸渍的纤维网(4),特别是纸来形成,使得纤维材料的纤维(5)被烧掉并且陶瓷材料(6)被烧结在一起 以在其两个表面(7,8)之间形成连续多孔且透气的过滤器段(3)。 至少一个纤维网(4)是波纹状的,以形成气体通道(18,18')并且卷起以形成过滤器体(1),并且气体通道(18,18)的至少一部分的横截面 ')从入口端(33)变化到排出端(34)。