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    CATALYTIC FLOW-THROUGH FAST LIGHT OFF CERAMIC SUBSTRATE AND METHOD OF MANUFACTURE
    3.
    发明公开
    CATALYTIC FLOW-THROUGH FAST LIGHT OFF CERAMIC SUBSTRATE AND METHOD OF MANUFACTURE 审中-公开
    KATALYTISCHES DURCHFLUSSKERAMIKSUBSTRAT MIT KURZER ANSPRINGZEIT UND VERFAHREN ZUR HERSTELLUNG

    公开(公告)号：EP3090796A1

    公开(公告)日：2016-11-09

    申请号：EP16171743.4

    申请日：2007-03-23

    申请人： Corning Incorporated

    发明人： FISCHER, Michael ,  FU, Xiaodong R ,  HOUSE, Keith L ,  KETCHAM, Thomas D ,  LAMBERT, David W

    IPC分类号： B01D46/24 ,  F01N3/022 ,  B01J35/00 ,  B01J35/04

    CPC分类号： B01D46/2418 ,  B01D46/2425 ,  B01D46/2466 ,  B01D46/247 ,  B01D2046/2433 ,  B01D2046/2496 ,  B01J35/0006 ,  B01J35/0026 ,  B01J35/04 ,  F01N3/0222 ,  Y02T10/20

    摘要： A fast light off flow-through ceramic substrate is provided that is particularly adapted for use as a catalytic converter. The substrate is formed from a body of ceramic material having axially opposing inlet and outlet ends for receiving and expelling the flow of automotive exhaust gas, respectively. The body contains a network of walls coated with a catalyst that define axially-oriented flow-through cell channels. The average thermal mass (ATM 1 ) of a first axial region of the walls adjacent to the inlet end is at least 20% less than the average thermal mass (ATM TOT ) of all of the walls. The lower average thermal mass of the walls in the first region advantageously shortens the light off time for the catalyst within the substrate to effectively neutralize automotive pollutants. The reduction of the average thermal mass in only the first axial region of the walls advantageously maintains the strength of the resulting body of ceramic material, and further increases the cool down time of the body.

    摘要翻译： 提供了一种特别适合用作催化转化器的快速通光陶瓷基板。 衬底由具有轴向相对的入口和出口端的陶瓷材料体形成，用于分别接收和排出汽车废气的流动。 身体包含涂覆有催化剂的壁的网络，其限定了轴向定向的流通池通道。 与入口端相邻的壁的第一轴向区域的平均热质量（ATM 1）比所有壁的平均热质量（ATM TOT）小至少20％。 第一区域中壁的较低的平均热质量有利地缩短了衬底内的催化剂的熄灭时间，以有效地中和汽车污染物。 仅在壁的第一轴向区域中的平均热质量的降低有利地保持了所得到的陶瓷材料的强度，并进一步增加了主体的冷却时间。