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    Method and system for detecting leaks in a plugged honeycomb structure
    3.
    发明授权
    Method and system for detecting leaks in a plugged honeycomb structure 失效
    用于检测堵塞的蜂窝结构中的泄漏的方法和系统

    公开(公告)号：US07043964B1

    公开(公告)日：2006-05-16

    申请号：US11018741

    申请日：2004-12-20

    申请人： David L. Hickman

    发明人： David L. Hickman

    IPC分类号： G01M3/04

    CPC分类号： G01M3/002 ,  G01M3/38

    摘要： A method for detecting leaks in a plugged honeycomb structure includes directing a gas at a first end face of the honeycomb structure at a temperature that is different from a temperature of the honeycomb structure and observing a temperature distribution at a second end face of the honeycomb substrate using an infrared detector, wherein the gas directed at the first end face of the honeycomb structure emerges preferentially at the second end face of the honeycomb structure at locations where the cells in the honeycomb structure are defective and appear as thermal spots in the temperature distribution.

    摘要翻译： 一种用于检测堵塞的蜂窝结构中的泄漏的方法，包括：在与蜂窝结构体的温度不同的温度下，在蜂窝结构体的第一端面处引导气体，观察蜂窝状基材的第二端面的温度分布 使用红外线检测器，其中指向蜂窝结构体的第一端面的气体优先地在蜂窝结构体的细胞的位置处出现在蜂窝结构体的第二端面，并且在温度分布中作为热点出现。

    Honeycomb particulate filters
    4.
    发明授权
    Honeycomb particulate filters 失效
    蜂窝状颗粒过滤器

    公开(公告)号：US06508852B1

    公开(公告)日：2003-01-21

    申请号：US09687211

    申请日：2000-10-13

    申请人： David L. Hickman ,  Thomas D. Ketcham ,  David F. Thompson

    发明人： David L. Hickman ,  Thomas D. Ketcham ,  David F. Thompson

    IPC分类号： B01D3920

    CPC分类号： F01N3/0222 ,  B01D39/2068 ,  B28B1/001 ,  F01N2260/08 ,  F01N2330/06 ,  F01N2330/30 ,  F01N2330/48 ,  Y02T10/20 ,  Y10S55/10 ,  Y10S55/30

    摘要： A honeycomb structure for a diesel engine or an automotive engine where the wall thickness is varied in a controlled manner from the front surface to the back of the honeycomb. One example is grading the web thickness continuously from thin webs on the front of the DPF to thick webs on the back of the DPF. Another example is to make a two layer honeycomb with thinner walls and/or perhaps even lower cell density on the upstream side of the honeycomb. This provides a lower thermal mass front while retaining the thicker webs and higher thermal mass at the back of the honeycomb. The honeycomb structure has a thermal mass or heat capacity ranging from above 8.5×10−3cal/cubic cm-K to below 0.25 cal/cubic cm-K along an axis from the inlet end to the outlet end.

    摘要翻译： 一种用于柴油发动机或汽车发动机的蜂窝结构，其中壁厚度以受控的方式从蜂窝的前表面到后面变化。 一个例子是从DPF前面的薄腹板连续地分级腹板厚度到DPF背面的厚腹板。 另一个例子是在蜂巢的上游侧制造具有较薄壁和/或甚至更低的细胞密度的双层蜂窝体。 这提供了较低的热质量前沿，同时保持较厚的腹板和在蜂窝背部具有较高的热质量。 蜂窝结构体具有从入口端到出口端的轴线的热质量或热容量范围从高于8.5×10-3cal /立方厘米至低于0.25cal /立方厘米。

    Cordierite body
    6.
    再颁专利
    Cordierite body 有权
    堇青石体

    公开(公告)号：USRE38888E1

    公开(公告)日：2005-11-22

    申请号：US10668097

    申请日：2003-09-22

    申请人： Douglas M. Beall ,  David L. Hickman ,  Gregory A. Merkel

    发明人： Douglas M. Beall ,  David L. Hickman ,  Gregory A. Merkel

    IPC分类号： F01N3/02 ,  B01D39/00 ,  B01D39/20 ,  B01D46/00 ,  C04B35/195 ,  C04B38/00 ,  F01N3/022 ,  B01D39/06

    CPC分类号： C04B38/0051 ,  B01D39/2068 ,  C04B35/195 ,  C04B38/00 ,  C04B2111/00793 ,  F01N3/022 ,  F01N2330/06 ,  Y10S55/30 ,  C04B38/0006 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/0067

    摘要： A ceramic comprising predominately a cordierite-type phase approximating the stoichiometry Mg2Al4Si5O18 and having a coefficient of thermal expansion (25-800° C.) of greater than 4×10−7/° C. and less than 13×10−7/° C. and a permeability and a pore size distribution which satisfy the relation 2.108 (permeability)+18.511 (total pore volume)+0.1863 (percentage of total pore volume comprised of pores between 4 and 40 micrometers)>24.6. The ceramic is suitable in the fabrication of cellular, wall-flow, diesel particulate filters having a pressure drop in kPa that at an artificial carbon soot loading of 5 grams/liter and a flow rate of 26 scfm is less than 8.9-0.035 (number of cells per square inch)+300 (cell wall thickness in inches), a bulk filter density of at least 0.60 g/cm3 and a volumetric heat capacity of at least 0.67 J cm−3 K−1 as measured at 500° C.

    摘要翻译： 主要由堇青石型相组成的陶瓷，其近似化学计量的Mg 2 Al 4 Si 5 O 18，并且具有 热膨胀系数（25-800℃）大于4×10 -7 /℃，小于13×10 -7 /℃，渗透率 和孔径分布满足关系式2.108（渗透率）+18.511（总孔体积）+0.1863（由4微米与40微米之间的孔组成的总孔体积的百分比）> 24.6。 该陶瓷适用于制造具有以kPa为单位的压力降的细胞壁流式柴油微粒过滤器，在人造碳烟负荷为5克/升，流速26scfm小于8.9-0.035（数量 的细胞/平方英寸）+300（细胞壁厚（英寸）），体积过滤密度至少为0.60g / cm 3，体积热容至少为0.67Jcm- 在500℃下测量的3 -1

    Gravity-flow water filtration device
    7.
    发明授权
    Gravity-flow water filtration device 失效
    重力流水过滤装置

    公开(公告)号：US06454941B1

    公开(公告)日：2002-09-24

    申请号：US09461796

    申请日：1999-12-15

    申请人： Willard A. Cutler ,  David L. Hickman ,  Stanley D. Solsky

    发明人： Willard A. Cutler ,  David L. Hickman ,  Stanley D. Solsky

    IPC分类号： B01D2714

    CPC分类号： C02F1/003 ,  C02F1/283 ,  C02F1/42 ,  C02F1/444 ,  C02F2201/006 ,  C02F2303/04

    摘要： A replaceable gravity-flow cyst-reducing water filter cartridge for placement in a water filter carafe, comprising a filter cartridge housing with a cap having a plurality of untreated water inlet ports, wherein the cap is sealingly attached to a top rim of the housing. The filter housing further comprises a gooseneck conduit that is connected to a lower region of the filter housing, with the gooseneck conduit having at one end a treated water outlet port that opens into a side surface of the filter housing. The filter housing also includes a packed bed of ion-exchange resin that is disposed in an upper region of the filter housing and a high surface area cyst-reducing filter element that is disposed in the lower region of the filter housing. The filter element provides at least 99.95% removal of 3-4 &mgr;m particles when tested in accordance with NSF standard 53, Drinking Water Treatment Units—Health Effects (September 1997). A bottom surface of the ion-exchange resin is in full contact with one side of a bottom screen, which is attached at the periphery to the side surface of the housing. The filter housing further has a first chamber separating the packed bed of ion-exchange resin from the cyst-reducing filter element and a second chamber proximate to the bottom surface of the filter housing, which is in fluid communication with the gooseneck conduit. The housing also includes an air vent conduit that is connected to the upper region of the filter housing, wherein the air vent conduit has an entry end that opens into the first chamber and an exit end that opens to the outside of the housing. The exit end is positioned above the treated water outlet port of the gooseneck conduit and the exit end is further covered with a hydrophobic membrane. The packed bed of ion-exchange resin and the cyst-reducing filter element each correspond in shape to the shape of the filter housing.

    摘要翻译： 一种用于放置在水过滤器瓶中的可替换的重力流囊剂减少水过滤器滤芯，包括具有多个未处理的进水口的盖的过滤器滤芯壳体，其中所述盖密封地附接到所述壳体的顶部边缘。 过滤器壳体还包括鹅颈管道，其连接到过滤器壳体的下部区域，鹅颈管道在一端具有通向过滤器壳体的侧表面的经处理的出水口。 过滤器壳体还包括设置在过滤器壳体的上部区域中的离子交换树脂的填充床和设置在过滤器壳体的下部区域中的高表面积的囊肿减少过滤器元件。 根据NSF标准53“饮用水处理单元 - 健康效应”（1997年9月）进行测试时，过滤元件提供至少99.95％的去除3-4颗颗粒颗粒。 离子交换树脂的底表面与底部屏幕的一侧完全接触，底部屏幕的外围附着到壳体的侧表面。 过滤器壳体还具有将离子交换树脂的填充床与减少囊的过滤元件分开的第一室和靠近过滤器壳体的底表面的第二室，其与鹅颈管道流体连通。 壳体还包括连接到过滤器壳体的上部区域的排气导管，其中，排气导管具有通向第一室的进入端和通向壳体外部的出口端。 出口端位于鹅颈管导管的处理水出口的上方，并且出口端进一步用疏水膜覆盖。 离子交换树脂的填充床和囊肿减少过滤元件的形状各自对应于过滤器壳体的形状。

    Batch compositions for cordierite ceramics
    8.
    发明授权
    Batch compositions for cordierite ceramics 失效
    堇青石陶瓷的批料

    公开(公告)号：US5332703A

    公开(公告)日：1994-07-26

    申请号：US26467

    申请日：1993-03-04

    申请人： David L. Hickman

    发明人： David L. Hickman

    IPC分类号： B01J21/14 ,  B01J35/04 ,  C04B35/195 ,  C04B35/16 ,  C04B35/18 ,  C04B35/20

    CPC分类号： B01J35/04 ,  B01J21/14 ,  C04B35/195

    摘要： Ceramic products consisting principally of cordierite and a method for making them are provided, the method employing batches comprising a mineral component and a chemical component, the mineral component comprising clay and talc and the chemical component consisting essentially of a combination of the powdered oxides, hydroxides, or hydrous oxides of magnesium, aluminum and silicon. Ceramics made by extrusion and firing of the batches can exhibit low porosity, high strength and low thermal expansion coefficients.

    摘要翻译： 提供主要由堇青石组成的陶瓷产品及其制备方法，该方法使用包含矿物组分和化学组分的批料，该矿物组分包括粘土和滑石，以及化学组分基本上由粉末状氧化物，氢氧化物 ，或镁，铝和硅的含水氧化物。 通过挤压和烧制制成的陶瓷可以显示出低孔隙率，高强度和低热膨胀系数。

    Pressed porous filter bodies
    10.
    发明授权
    Pressed porous filter bodies 失效
    压制多孔过滤体

    公开(公告)号：US06296794B1

    公开(公告)日：2001-10-02

    申请号：US09413427

    申请日：1999-10-06

    申请人： J. Paul Day ,  David L. Hickman ,  Lawrence S. Rajnik

    发明人： J. Paul Day ,  David L. Hickman ,  Lawrence S. Rajnik

    IPC分类号： B01D3920

    CPC分类号： B01D46/0001 ,  B01D39/2068 ,  B01D39/2079 ,  B01D46/2418 ,  B01D46/2466 ,  B01D46/247 ,  Y10S264/48

    摘要： A preform for a z-flow honeycomb filter is formed by a pressing process wherein a batch charge is shaped in a press into a preform of finished plug-and-channel configuration, the shaped preform comprising opposing overlapping arrays of closed-end inlet and outlet channels wherein the end closures consist of bridging segments of batch material connected in continuous (seamless) or uninterrupted fashion with the adjoining channel walls.

    摘要翻译： 通过压制方法形成用于z-流动蜂窝过滤器的预成型件，其中批量装料在压制机中成型成完成的插塞和通道构造的预成型件，成形预制件包括相对的封闭端口和出口的重叠阵列 通道，其中端部封闭件由以连续（无缝）或不间断的方式与相邻的通道壁连接的批料的桥接段组成。