EXHAUST EMISSION PURIFICATION CATALYST AND ENGINE CONTROLLER
    3.
    发明申请
    EXHAUST EMISSION PURIFICATION CATALYST AND ENGINE CONTROLLER 审中-公开
    排气净化催化剂和发动机控制器

    公开(公告)号:US20100058739A1

    公开(公告)日:2010-03-11

    申请号:US12555565

    申请日:2009-09-08

    申请人: Kinichi IWACHIDO

    发明人: Kinichi IWACHIDO

    IPC分类号: F01N3/00 F01N3/10 B01J29/04

    摘要: An exhaust emission purification catalyst which purifies exhaust gas of an engine, includes: a carrier which is formed with a plurality of cell holes; and a plurality of catalytic layers which are carried in the plurality of cell holes. The plurality of catalytic layers includes: a first layer including an auxiliary catalyst that includes a zeolite including a transition metal that occludes NOx in the exhaust gas during a time period of low temperature; and a second layer disposed adjacent to a surface of the first layer and including a main catalyst that includes at least one of an alkali metal and an alkali earth metal and that occludes the NOx occluded in the auxiliary catalyst when temperature of the main catalyst reaches active temperature.

    摘要翻译: 一种净化发动机废气的废气净化催化剂,包括:形成有多个电池孔的载体; 以及多个催化剂层,其承载在所述多个电池孔中。 多个催化层包括:第一层,包括辅助催化剂,其包括在低温时间段内包含在废气中吸留NOx的过渡金属的沸石; 以及与所述第一层的表面相邻设置的第二层,并且包括主催化剂,所述主催化剂包括碱金属和碱土金属中的至少一种,并且当所述主催化剂的温度达到活性时,所述主催化剂封闭所述辅助催化剂中所含的NOx 温度。