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94 条记录 (耗时 0.03 秒)

    Low temperature diesel particulate matter reduction system
    25.
    发明申请
    Low temperature diesel particulate matter reduction system 有权
    低温柴油颗粒物减少系统

    公开(公告)号：US20070240406A1

    公开(公告)日：2007-10-18

    申请号：US11725578

    申请日：2007-03-19

    申请人： Wenzhong Zhang ,  Todd Taubert ,  Timothy Ricke ,  Julian Imes

    发明人： Wenzhong Zhang ,  Todd Taubert ,  Timothy Ricke ,  Julian Imes

    IPC分类号： F01N3/00 ,  F01N3/02

    CPC分类号： B01D53/9431 ,  B01D46/2451 ,  B01D46/247 ,  B01D46/527 ,  B01D2046/2492 ,  B01D2267/40 ,  B01D2279/30 ,  F01N3/0222 ,  F01N3/0226 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/2821 ,  F01N13/009 ,  F01N13/0093 ,  F01N2330/02 ,  F01N2330/06 ,  F01N2330/10 ,  F01N2330/38 ,  F01N2330/44 ,  F01N2330/60 ,  F01N2430/00 ,  F01N2510/06 ,  F01N2510/0682

    摘要： A system for treating diesel exhaust is disclosed. The system includes a first filter including layers of filtration material positioned between layers of corrugated metallic foil. The metallic foil defines a honeycomb arrangement of longitudinal passageways from an upstream end to a downstream end and also openings for allowing exhaust to pass between adjacent longitudinal passageways of the metallic foil. The filtration material is positioned such that exhaust between the adjacent longitudinal passageways passes through the filtration material. The metallic foil also includes flow diverting structures to divert flow within the longitudinal passageways through the openings. A second filter is positioned downstream from the first filter. The second filter defines a honeycomb arrangement of longitudinal passageways. The longitudinal passages are selectively plugged adjacent upstream and downstream ends to force flow radially through walls between the longitudinal passages of the second filter.

    摘要翻译： 公开了一种用于处理柴油机排气的系统。 该系统包括第一过滤器，其包括位于波纹状金属箔层之间的过滤材料层。 金属箔限定了从上游端到下游端的纵向通道的蜂窝结构，还包括允许排气在金属箔的相邻纵向通道之间通过的开口。 过滤材料定位成使得相邻纵向通道之间的排气通过过滤材料。 金属箔还包括流动分流结构，以使纵向通道内的流动流过开口。 第二过滤器位于第一过滤器的下游。 第二过滤器限定了纵向通道的蜂窝结构。 纵向通道在上游端和下游端被选择性地堵塞，以迫使径向通过第二过滤器的纵向通道之间的壁流动。

    Method for regenerating a diesel particulate filter
    26.
    发明申请
    Method for regenerating a diesel particulate filter 审中-公开
    再生柴油微粒过滤器的方法

    公开(公告)号：US20060236680A1

    公开(公告)日：2006-10-26

    申请号：US11284143

    申请日：2005-11-21

    申请人： Wenzhong Zhang ,  Theodore Angelo

    发明人： Wenzhong Zhang ,  Theodore Angelo

    IPC分类号： F01N3/10 ,  F01N3/00

    CPC分类号： F01N3/035 ,  F01N3/0231 ,  F01N3/0253 ,  F01N2250/02

    摘要： A method is disclosed for regenerating a diesel particulate filter without excessively increasing NO2 emissions. The system includes a fuel delivery device, an oxidation catalyst, and a diesel particulate filter. During a first operational mode, the fuel injection device injects a relatively smaller amount of fuel into the exhaust stream to reduce the capacity of the oxidation catalyst to oxidize NO in the exhaust stream to NO2. At a determined time, a second operational mode is initiated where a relatively larger amount of fuel is injected into the exhaust stream and is oxidized within the oxidation catalyst, thereby raising the exhaust temperature sufficiently to combust substantially all of the soot trapped on the diesel particulate filter.

    摘要翻译： 公开了一种用于再生柴油微粒过滤器的方法，而不会过度增加NO 2排放。 该系统包括燃料输送装置，氧化催化剂和柴油微粒过滤器。 在第一操作模式期间，燃料喷射装置将相对较少量的燃料喷射到排气流中以降低氧化催化剂将排气流中的NO氧化为NO 2的能力。 在确定的时间，开始第二操作模式，其中相对较大量的燃料被注入排气流中并在氧化催化剂内被氧化，从而足够地提高废气温度以燃烧基本上所有被捕获在柴油颗粒上的烟灰 过滤。

    Catalyst for the combustion of diesel soot, methods for making the catalyst and methods of using the catalyst
    27.
    发明授权
    Catalyst for the combustion of diesel soot, methods for making the catalyst and methods of using the catalyst 失效
    用于柴油烟灰燃烧的催化剂，制备催化剂的方法和使用该催化剂的方法

    公开(公告)号：US06764664B2

    公开(公告)日：2004-07-20

    申请号：US10127252

    申请日：2002-04-22

    申请人： Wenzhong Zhang

    发明人： Wenzhong Zhang

    IPC分类号： B01J2304

    CPC分类号： B01J37/036 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/202 ,  B01D2255/2025 ,  B01J23/002 ,  B01J23/58 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/11 ,  B01J2523/31 ,  B01J2523/828

    摘要： A catalyst composition is disclosed for the reduction of soot and undesirable gaseous emissions from engine exhaust, particularly exhaust from diesel engines. The catalyst contains an alkali metal catalytic metal oxide, preferably lithium platinum oxide, in which the catalytic metal is atomically isolated. For improved performance in a diesel particulate filter, the alkali catalytic metal oxide is uniformly dispersed on an alkali metal aluminate such as lithium aluminate. Also disclosed is the catalytic device comprising this catalyst.

    摘要翻译： 公开了一种催化剂组合物，用于减少发动机排气中的煤烟和不期望的气体排放物，特别是来自柴油发动机的废气。 催化剂含有碱金属催化金属氧化物，优选氧化铂锂，其中催化金属被原子隔离。 为了改善柴油微粒过滤器的性能，碱金属氧化物均匀地分散在碱金属铝酸盐如铝酸锂上。 还公开了包含该催化剂的催化装置。

    Transmission gate circuitry for high voltage terminal
    30.
    发明授权
    Transmission gate circuitry for high voltage terminal 有权
    用于高电压端子的传输门电路

    公开(公告)号：US08228109B2

    公开(公告)日：2012-07-24

    申请号：US12824991

    申请日：2010-06-28

    申请人： Michael A. Stockinger ,  Jose A. Camarena ,  Wenzhong Zhang

    发明人： Michael A. Stockinger ,  Jose A. Camarena ,  Wenzhong Zhang

    IPC分类号： H03K5/08

    CPC分类号： H03K17/102

    摘要： A transmission gate circuit includes a first transmission gate, having a first switching device, coupled in series with a second transmission gate, having a second switching device, and control circuitry which places the first transmission gate and the second transmission gate into a conductive state to provide a conductive path through the first transmission gate and the second transmission gate. When the voltage of the first terminal is above a first voltage level and outside a safe operating voltage area of at least one of the first and second switching device, the first switching device remains within its safe operating voltage area and the second switching device remains within its safe operating voltage area.

    摘要翻译： 传输门电路包括具有第一开关装置的第一传输门，第一开关装置与第二传输门串联，具有第二开关装置，以及控制电路，其将第一传输门和第二传输门置于导通状态 提供穿过第一传输门和第二传输门的导电路径。 当第一端子的电压高于第一电压电平并且在第一和第二开关装置中的至少一个的安全工作电压区域之外时，第一开关装置保持在其安全工作电压区域内，并且第二开关装置保持在 其安全工作电压面积。