利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

89 条记录 (耗时 0.025 秒)

    DIESEL PARTICULATE FILTER
    21.
    发明申请
    DIESEL PARTICULATE FILTER 审中-公开
    柴油颗粒过滤器

    公开(公告)号：US20100300082A1

    公开(公告)日：2010-12-02

    申请号：US12471809

    申请日：2009-05-26

    申请人： Xiaogang Zhang

    发明人： Xiaogang Zhang

    IPC分类号： F01N3/02

    CPC分类号： F01N3/022 ,  B01D46/10 ,  B01D46/521 ,  B01D2279/30 ,  F01N2330/00 ,  Y02T10/20

    摘要： A diesel particulate filter assembly having a housing and a filter structure disposed within the housing for trapping particulate material in received exhaust gas as such received exhaust gas passes through the housing along a longitudinal axis of the housing. The filter structure has walls of particulate collecting, gas passing material. The walls pass portions of the exhaust gas while trapping particulate material in such passing exhaust gas. The walls are disposed the oblique to the direction of the received exhaust gas.

    摘要翻译： 一种柴油机微粒过滤器组件，其具有设置在壳体内的壳体和过滤器结构，用于将颗粒材料捕获在接收的废气中，因此接收的废气沿着壳体的纵向轴线穿过壳体。 过滤器结构具有颗粒收集壁，气体通过材料。 这些壁通过废气的一部分，同时在这种通过的废气中捕集颗粒材料。 壁沿着接收到的废气的方向倾斜设置。

    Honeycomb catalyst honeycomb intermediate structure and process for production of honeycomb catalyst
    22.
    发明申请
    Honeycomb catalyst honeycomb intermediate structure and process for production of honeycomb catalyst 审中-公开
    蜂窝催化剂蜂窝中间体结构及蜂窝催化剂生产工艺

    公开(公告)号：US20040235659A1

    公开(公告)日：2004-11-25

    申请号：US10489676

    申请日：2004-03-16

    发明人： Fumio Abe ,  Yasushi Kato

    IPC分类号： B01J021/04

    CPC分类号： B28B11/14 ,  B01D53/94 ,  B01J35/04 ,  B28B11/04 ,  B28B11/045 ,  C04B38/0012 ,  C04B2111/0081 ,  F01N3/2807 ,  F01N3/2828 ,  F01N2260/18 ,  F01N2330/00 ,  F01N2330/06 ,  F01N2330/34 ,  F01N2510/06 ,  C04B35/195

    摘要： A puddle 21 composed mainly of a ceramic and/or a metal is molded to obtain a honeycomb molded material 22; the honeycomb molded material 22 is dried, or dried and fired to obtain a honeycomb carrier; there are formed, at two portions of each partition wall 3 of the honeycomb carrier, each present at a given site extending, along the axial direction of the honeycomb carrier, from the two end faces 8 and 9 of the carrier at which each cell 1 formed by each partition wall 3 is open, reinforced portions 11 having an erosion resistance at least larger than that of other partition wall portion, whereby a honeycomb intermediate structure 31 is produced; after or before loading of catalyst thereon, the honeycomb intermediate structure 31 is cut along the diameter direction; then, a catalyst is loaded as necessary to obtain a honeycomb catalyst. Thus, burden to operator is alleviated and there is efficiently obtained a honeycomb catalyst which is small in damage during production and deformation during firing and which is very small in pressure loss.

    摘要翻译： 主要由陶瓷和/或金属构成的熔池21被模制以获得蜂窝成型材料22; 将蜂窝模制材料22干燥或干燥并烧制以获得蜂窝状载体; 在蜂窝载体的每个分隔壁3的两个部分处形成有沿着蜂窝载体的轴向延伸的给定位置处从载体的两个端面8和9，每个单元1 由每个分隔壁3形成的开口部分，具有至少比其它分隔壁部分大的侵蚀阻力的加强部分11，由此制造蜂窝中间结构31; 在催化剂载载之后或之后，蜂窝中间结构31沿直径方向切割; 然后根据需要加载催化剂，得到蜂窝状催化剂。 因此，减轻了操作人员的负担，有效地获得了在焙烧期间的生产和变形期间损伤小且压力损失非常小的蜂窝催化剂。

    Catalytic trap with potassium component and method of using the same
    25.
    发明授权
    Catalytic trap with potassium component and method of using the same 有权
    具有钾成分的催化捕集器及其使用方法

    公开(公告)号：US06497848B1

    公开(公告)日：2002-12-24

    申请号：US09643457

    申请日：2000-08-22

    申请人： Michel Deeba ,  Uwe Dahle ,  Stefan Brandt ,  John K. Hochmuth

    发明人： Michel Deeba ,  Uwe Dahle ,  Stefan Brandt ,  John K. Hochmuth

    IPC分类号： B01D5394

    CPC分类号： B01J35/0006 ,  B01D53/9413 ,  B01J23/58 ,  B01J23/63 ,  B01J37/0242 ,  B01J37/0244 ,  B01J37/0248 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N2330/00 ,  F01N2330/06 ,  F01N2610/03

    摘要： A catalytic trap (10, 110) effective for conversion of NOx in an exhaust gas stream is inert to high-temperature reaction with basic oxygenated compounds of lithium, sodium or potassium. The catalytic trap may be substantially free of silica components and may include a catalytic trap material (20, 120) which contains a refractory metal oxide support, e.g., alumina, having dispersed thereon a catalytic component, such as a platinum group metal catalytic component, and a NOx sorbent comprised of one or more of the basic oxygenated compounds. The catalytic trap material is coated onto a suitable carrier member (12, 112), such as one made from stainless steel, titanium, alumina, titania, zirconia or silica-leached cordierite. A method of treating a NOx-containing gas stream involves maintaining the gas stream in alternating periods of (1) lean and (2) rich or stoichiometric conditions and contacting the gas stream with the catalytic trap under conditions in which NOx is adsorbed during periods of lean operation and released and reduced to nitrogen during periods of rich operation.

    摘要翻译： 对废气流中的NOx转化有效的催化捕集器（10,110）对与锂，钠或钾的碱性氧化化合物的高温反应是惰性的。 催化捕集器可以基本上不含二氧化硅组分，并且可以包括催化捕集材料（20,120），催化捕集材料包含难熔金属氧化物载体，例如在其上分散有催化组分如铂族金属催化组分的氧化铝， 和由一种或多种碱性氧化化合物组成的NOx吸附剂。 将催化捕集材料涂覆到合适的载体构件（12,112）上，例如由不锈钢，钛，氧化铝，二氧化钛，氧化锆或二氧化硅浸提的堇青石制成的载体构件。 一种处理含NO x的气流的方法包括将气流保持在（1）贫和（2）富集或化学计量条件的交替时段内，并且在气体流与催化捕集器接触的条件下， 精益营运，丰富经营期间释放并减少氮。

    Method and apparatus for emission control
    27.
    发明授权
    Method and apparatus for emission control 失效
    排放控制方法和装置

    公开(公告)号：US06314722B1

    公开(公告)日：2001-11-13

    申请号：US09413669

    申请日：1999-10-06

    申请人： Yurii Sh. Matros ,  Grigori A. Bunimovich ,  Vadim O. Strots

    发明人： Yurii Sh. Matros ,  Grigori A. Bunimovich ,  Vadim O. Strots

    IPC分类号： F01N300

    CPC分类号： F01N3/0233 ,  B01D53/9418 ,  B01D53/9431 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9155 ,  F01N3/0231 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/2093 ,  F01N13/008 ,  F01N13/0097 ,  F01N2330/00 ,  F01N2330/06 ,  F01N2330/10 ,  F01N2610/02 ,  F01N2610/03 ,  Y02A50/2325 ,  Y02T10/24

    摘要： A converter for purifying exhaust gases from lean-burn engines, in particular for controlling the amount of NOx and soot from a diesel engine in transient operation such as a vehicle. The converter contains a catalyst bed with a catalyst effective for NOx reduction with a chemical reductant when the catalyst bed is with a certain temperature window and when the ratio between the molar amount of chemical reductant and NOx is above a certain minimum ratio. The catalyst bed is heated or cooled to a temperature within the temperature window and a switching valve is provided for reverse flowing the exhaust gases through the converter to maintain the catalyst bed at a temperature within the temperature window for a longer time than is possible with a conventional non-flow-reversing converter. A reductant delivery system adds chemical reductant to the exhaust gases in an appropriate amount so that the ratio between the molar amount of chemical reductant and NOx is above the certain minimum ratio when the exhaust gases pass over the catalyst bed. A soot trap may be provided in series with the catalyst bed in the converter, said reverse flowing of the exhaust gases through converter heating and continuously maintaining the soot trap at or above the ignition temperature of the soot.

    摘要翻译： 用于净化来自稀燃燃烧发动机的废气的转化器，特别是用于在诸如车辆的瞬态操作中控制来自柴油发动机的NOx和烟尘的量。 当催化剂床处于一定温度窗口时，当化学还原剂和NOx的摩尔​​量之比高于某一最小比例时，转化器含有具有催化剂床的催化剂床，该催化剂有效地用化学还原剂还原NO x。 催化剂床被加热或冷却到温度窗口内的温度，并且提供切换阀以使排气逆流地流过转化器，以将催化剂床保持在温度范围内的温度比在 传统的非流逆反转换器。 还原剂递送系统以适当的量向废气中添加化学还原剂，使得当废气通过催化剂床时，化学还原剂和NOx的摩尔​​量之间的比率高于某一最小比例。 烟囱捕集器可以与转化器中的催化剂床串联提供，所述废气通过转化器加热反向流动，并连续地将煤烟捕集器保持在烟炱的着火温度以上。