Metallic honeycomb body having at least partially perforated sheet-metal layers
    21.
    发明申请
    Metallic honeycomb body having at least partially perforated sheet-metal layers 有权
    具有至少部分穿孔的金属薄板层的金属蜂窝体

    公开(公告)号:US20050170957A1

    公开(公告)日:2005-08-04

    申请号:US11058991

    申请日:2005-02-16

    摘要: A metallic honeycomb body has an axial length, a partial volume covering at least 55% of the length, a radial dimension of at least 20 mm and inflow and outflow end sides. Sheet-metal layers are structured permitting a fluid, particularly internal combustion engine exhaust gas, to flow through the body between the end sides. The layers each have a surface area, partial regions and end side edges. Each of the layers has a multiplicity of holes formed at least in the partial regions in the partial volume. The holes have a hole surface area of between 1 and 120 mm2. The layer surface area in the partial volume is reduced by 10 to 80%, preferably 35 to 60%, by the holes compared to a layer without holes. The partial volume is spaced from each of the end sides, preventing the holes from touching and cutting through the end side edges. The partial volume amounts, in particular, to more than 60%, preferably more than 90%, of the total honeycomb body volume. A highly effective coating for treatment of a fluid for most known forms of honeycomb bodies yet with a reduced use of coating material while still being able to specifically match properties of a honeycomb body in terms of mechanical stability, heat capacity, thermal conductivity and the like to the requirements of individual applications, is provided.

    摘要翻译: 金属蜂窝体具有轴向长度,覆盖长度的至少55%,径向尺寸至少为20mm的部分体积以及流入和流出端侧。 钣金层结构允许流体,特别是内燃机废气在端侧之间流过本体。 这些层各自具有表面积,部分区域和端部侧边缘。 每个层具有至少在部分体积的部分区域中形成的多个孔。 孔的孔表面积为1至120mm 2。 与没有孔的层相比,通过孔将部分体积中的层表面积减少10〜80%,优选为35〜60%。 部分体积与每个端侧间隔开,防止孔接触和切割通过端侧边缘。 部分体积量,特别是总蜂窝体体积的大于60%,优选大于90%。 一种用于处理大多数已知形式的蜂窝体的流体的高效涂层,同时在机械稳定性,热容量,导热性等方面仍然能够特异性地匹配蜂窝体的性能,同时减少了涂层材料的使用 提供个人应用的要求。

    Method and Device for Providing a Gaseous Substance Mixture
    22.
    发明申请
    Method and Device for Providing a Gaseous Substance Mixture 有权
    提供气态物质混合物的方法和装置

    公开(公告)号:US20090107125A1

    公开(公告)日:2009-04-30

    申请号:US12271943

    申请日:2008-11-17

    IPC分类号: F01N3/20

    摘要: A device and a method for providing a gaseous substance mixture including at least one of a reducing agent and/or a reducing agent precursor, include a reservoir for an aqueous solution including at least one reducing agent precursor, from which the aqueous solution can be delivered into at least one metering line having a dispensing opening by a delivery device, and a device for heating the metering line above a critical temperature greater than the boiling temperature of water. Complete evaporation of an aqueous solution including urea and subsequent hydrolysis to form a substance mixture including ammonia, are carried out. The substance mixture is metered as a reducing agent into an SCR catalytic converter. Carrying out the evaporation outside the exhaust system uses considerably smaller hydrolysis catalytic converters, which is space-saving and cost-saving compared to conventional devices for providing a reducing agent for selective catalytic reduction of nitrogen oxides.

    摘要翻译: 一种用于提供包含还原剂和/或还原剂前体中的至少一种的气态物质混合物的装置和方法,包括用于包含至少一种还原剂前体的水溶液的储存器,可以从该还原剂前体输送水溶液 进入具有通过输送装置的分配开口的至少一个计量管线,以及用于将计量管线加热到高于水的沸点温度的临界温度以上的装置。 完成包括尿素在内的水溶液的蒸发,随后进行水解以形成包含氨的物质混合物。 将物质混合物作为还原剂计量加入到SCR催化转化器中。 在排气系统外部进行蒸发使用相当小的水解催化转化器,与用于提供用于氮氧化物的选择性催化还原的还原剂的常规装置相比,其节省空间并节省成本。

    Method for Producing an Annular Honeycomb Body, and Annular Honeycomb Body
    26.
    发明申请
    Method for Producing an Annular Honeycomb Body, and Annular Honeycomb Body 有权
    环形蜂窝体和环形蜂窝体的生产方法

    公开(公告)号:US20080199654A1

    公开(公告)日:2008-08-21

    申请号:US12045048

    申请日:2008-03-10

    IPC分类号: B01J35/04 B32B3/12

    摘要: A method for producing a honeycomb body includes providing an annular radial partial region with channels through which a fluid can flow. The honeycomb body is formed from at least one metallic layer fastened at least at one fastening point to an outer casing tube. Each metallic layer has alternating substantially smooth and structured sections folded onto one another. A honeycomb body is also provided. The method and the honeycomb body advantageously permit an annular honeycomb body with low material expenditure and good durability to be produced.

    摘要翻译: 一种蜂窝体的制造方法,其特征在于,在所述环状径向部分区域设置有能够流动的通道。 蜂窝体由至少一个金属层形成,所述至少一个金属层至少紧固在一个固定点处与外部套管。 每个金属层具有彼此折叠的交替的大致平滑和结构的部分。 还提供蜂窝体。 该方法和蜂窝体有利地允许产生具有低材料消耗和良好耐久性的环形蜂窝体。

    Method for Operating a Particle Trap and Device for Carrying Out the Method
    27.
    发明申请
    Method for Operating a Particle Trap and Device for Carrying Out the Method 审中-公开
    操作颗粒捕集阱的方法和执行该方法的装置

    公开(公告)号:US20080155967A1

    公开(公告)日:2008-07-03

    申请号:US11963901

    申请日:2007-12-24

    IPC分类号: F01N3/023 F01N9/00

    摘要: A method for operating a particle trap, in particular an open particle trap, in an exhaust gas system of an internal combustion engine, includes determining a first point in time in which the particle trap falls below a first effectiveness limiting value, increasing the effectiveness of the particle trap by adjusting at least one specific operating parameter of the internal combustion engine, while exhaust gas produced by the internal combustion engine does not exceed a temperature of 500° C. in the vicinity of the particle trap, determining a second point in time in which the particle trap exceeds a second effectiveness limiting value, and activating normal operation of the internal combustion engine. The method and an associated device ensure operation of an exhaust gas system of an internal combustion engine, with conservation of fuel, savings of materials and simultaneous high effectiveness of the particle trap integrated into the exhaust gas system.

    摘要翻译: 一种用于在内燃机的排气系统中操作颗粒捕集器,特别是开放颗粒捕集器的方法,包括确定颗粒捕集器在第一有效极限值以下的第一时间点,从而提高效率 通过调节内燃机的至少一个特定的操作参数,在内燃机产生的废气在颗粒捕集器附近不超过500℃的温度,确定第二时间点 其中所述颗粒捕集器超过第二有效性限制值,并且启动所述内燃机的正常操作。 该方法和相关设备确保内燃机的排气系统的运行,具有节省燃料,节省材料并同时具有集成在废气系统中的颗粒捕集器的高效能。