利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

33 条记录 (耗时 0.029 秒)

    Process and catalyst structure employing intergal heat exchange with optional downstream flameholder
    11.
    发明授权
    Process and catalyst structure employing intergal heat exchange with optional downstream flameholder 失效
    使用与可选择的下游阻燃器进行间隔热交换的工艺和催化剂结构

    公开(公告)号：US5518697A

    公开(公告)日：1996-05-21

    申请号：US378206

    申请日：1995-01-25

    申请人： Ralph A. Dalla Betta ,  David K. Yee ,  Scott A. Magno ,  Toru Shoji

    发明人： Ralph A. Dalla Betta ,  David K. Yee ,  Scott A. Magno ,  Toru Shoji

    IPC分类号： F01N3/10 ,  B01J23/40 ,  B01J35/04 ,  F01N3/28 ,  F23C6/04 ,  F23C9/00 ,  F23C13/00 ,  F23D11/40 ,  F23D14/18 ,  F23R3/40 ,  F23D3/40

    CPC分类号： F23C13/00 ,  F01N3/28 ,  F01N3/281 ,  F01N3/2814 ,  F01N3/2821 ,  F01N3/2882 ,  F23C6/045 ,  F23C9/006 ,  F23R3/40 ,  F01N2240/02 ,  F01N2330/321 ,  F01N2330/323 ,  F01N2330/42 ,  F23C2900/13002 ,  F23R2900/00002

    摘要： This invention is an improved catalyst structure and its use in highly exothermic processes like catalytic combustion. This improved catalyst structure employs integral heat exchange in an array of longitudinally disposed adjacent reaction passage-ways or channels, which are either catalyst-coated or catalyst-free, wherein the configuration of the catalyst-coated channels differs from the non-catalyst channels such that, when applied in exothermic reaction processes, such as catalytic combustion, the desired reaction is promoted in the catalytic channels and substantially limited in the non-catalyst channels. The invention further comprises an improved reaction system and process for combustion of a fuel wherein catalytic combustion using a catalyst structure employing integral heat exchange, preferably the improved structures of the invention, affords a partially-combusted, gaseous product which is passed to a homogeneous combustion zone where complete combustion is promoted by means of a flameholder.

    摘要翻译： 本发明是改进的催化剂结构及其在高度放热过程如催化燃烧中的应用。 这种改进的催化剂结构在纵向设置的相邻反应通道或通道的阵列中采用整体热交换，其是催化剂涂覆的或不含催化剂的，其中催化剂涂覆的通道的构型与非催化剂通道的构型不同， 当用于放热反应过程如催化燃烧时，在催化通道中促进所需的反应，并且在非催化剂通道中基本上受限制。 本发明还包括改进的燃料燃烧反应系统和方法，其中使用采用整体热交换的催化剂结构，优选本发明的改进结构的催化燃烧提供了部分燃烧的气态产物，其被传递到均匀燃烧 通过火焰稳定器促进完全燃烧的区域。

    NOX sensor assembly
    12.
    发明授权
    NOX sensor assembly 失效
    NOX传感器组件

    公开(公告)号：US5486336A

    公开(公告)日：1996-01-23

    申请号：US080679

    申请日：1993-06-22

    申请人： Ralph A. Dalla Betta ,  Daniel L. Reed ,  Priscilla Schubert

    发明人： Ralph A. Dalla Betta ,  Daniel L. Reed ,  Priscilla Schubert

    IPC分类号： F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20

    CPC分类号： G01N33/0037 ,  G01N25/30 ,  F02B1/04

    摘要： This invention is a self-contained NO.sub.x sensor assembly. It may be used to detect NO.sub.x levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NO.sub.x measured. The NO.sub.x sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NO.sub.x and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NO.sub.x reductant source. The sensor assembly may be placed in a moving vehicle for measuring NO.sub.x levels in its exhaust gas.

    摘要翻译： 本发明是一种独立的NOx传感器组件。 它可以用于检测流动气流中的NOx水平，例如可能在来自燃烧过程的废气中发现，并且产生与所测量的NOx含量相关的可测量的电输出。 NOx传感器组件具有可以从安装和拆卸的构造。 传感器组件包括两个传感器元件，其中一个传感器元件由温度测量装置上的催化剂构成。 另一种是气流环境温度测量装置。 催化剂的选择和配置使得其选择性地还原NOx，并且所产生的反应热量升高了相关温度测量装置的温度。 传感器组件还含有NO x还原剂源。 传感器组件可以放置在移动的车辆中，用于测量其废气中的NOx水平。

    Devices and methods for reduction of NOx emissions from lean burn engines
    14.
    发明授权
    Devices and methods for reduction of NOx emissions from lean burn engines 有权
    减少稀燃燃烧发动机NOx排放的装置和方法

    公开(公告)号：US07181906B2

    公开(公告)日：2007-02-27

    申请号：US10715722

    申请日：2003-11-17

    申请人： Ralph A. Dalla Betta ,  Joel Cizeron ,  David R. Sheridan

    发明人： Ralph A. Dalla Betta ,  Joel Cizeron ,  David R. Sheridan

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0871 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2053 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/20 ,  F01N2240/30 ,  F01N2610/03 ,  F01N2610/04 ,  Y02A50/2325 ,  Y02T10/24

    摘要： The invention provides devices and methods for generating H2 and CO in an O2 containing gas stream. The invention also provides devices and methods for removal of NOX from an O2 containing gas stream, particularly the oxygen-rich exhaust stream from a lean-burning engine, such as a diesel engine. The invention includes a fuel processor that efficiently converts added hydrocarbon fuel to a reducing mixture of H2 and CO. The added fuel may be a portion of the onboard fuel on a vehicle. The H2 and CO are incorporated into the exhaust stream and reacted over a selective lean NOX catalyst to convert NOX to N2. thereby providing an efficient means of NOX emission control.

    摘要翻译： 本发明提供了用于在含O 2 N 2气体物流中产生H 2 CO和CO的装置和方法。 本发明还提供了用于从含O 2的气流中除去NO x的装置和方法，特别是来自稀燃发动机的富氧排气流，例如 柴油机。 本发明包括一种燃料处理器，其将添加的烃燃料有效地转化为H 2 CO 2和CO的还原混合物。添加的燃料可以是车辆上的车载燃料的一部分。 将H 2 CO和CO并入排气流中并在选择性稀的NO x X N 2催化剂上反应以将NO X X转化为N 2 。 从而提供了NO X发射控制的有效手段。

    Catalyst structure for use in a partial combustion process
    15.
    发明授权
    Catalyst structure for use in a partial combustion process 失效
    用于部分燃烧过程的催化剂结构

    公开(公告)号：US5511972A

    公开(公告)日：1996-04-30

    申请号：US371561

    申请日：1995-01-11

    申请人： Ralph A. Dalla Betta ,  Toru Shoji ,  Kazunori Tsurumi ,  Nobuyasu Ezawa

    发明人： Ralph A. Dalla Betta ,  Toru Shoji ,  Kazunori Tsurumi ,  Nobuyasu Ezawa

    IPC分类号： B01D53/86 ,  B01J23/38 ,  B01J23/44 ,  B01J37/02 ,  F23D21/00

    CPC分类号： B01D53/8628 ,  B01J23/38 ,  B01J23/44 ,  B01J37/0225

    摘要： This invention is both a partial combustion process in which the fuel is partially combusted using specific catalysts and catalytic structures and also a catalyst structure for use in the process. The choice of catalysts and supports solves problems in the art dealing with the stability of the overall catalyst structure and ease of catalyst operation. The catalyst structure is stable due to its comparatively low operating temperature, has a low temperature at which catalytic combustion begins, and yet is not susceptible to temperature "runaway". The combustion gas produced by the catalytic process typically is below the autocombustive temperature for the gas mixture; the gas may be used at that temperature, or fed to other combustion stages for ultimate use in a gas turbine, furnace, boiler, or the like.

    摘要翻译： 本发明既是部分燃烧过程，其中使用特定的催化剂和催化结构将燃料部分燃烧，也是用于该方法的催化剂结构。 催化剂和载体的选择解决了现有技术中处理整个催化剂结构的稳定性和易于催化剂操作的问题。 催化剂结构由于其相对低的操作温度是稳定的，催化燃烧开始的温度低，而且不易受温度“失控”的影响。 由催化过程产生的燃烧气体通常低于气体混合物的自燃温度; 可以在该温度下使用气体，或者将其供给到燃气轮机，炉，锅炉等中最终使用的其它燃烧级。

    Heated wet gas flow meter
    18.
    发明授权
    Heated wet gas flow meter 有权
    加热湿气流量计

    公开(公告)号：US08607642B2

    公开(公告)日：2013-12-17

    申请号：US13329275

    申请日：2011-12-17

    申请人： Daniel R. Kurz ,  Bruce B. Burton ,  Ralph A. Dalla Betta

    发明人： Daniel R. Kurz ,  Bruce B. Burton ,  Ralph A. Dalla Betta

    IPC分类号： G01F1/00

    CPC分类号： G01F1/6842 ,  G01F5/00 ,  G01F15/08

    摘要： A flow body flow meter includes a flow body, a heater, and a sensor. The flow body includes an inlet, an outlet, and an internal passage coupling the inlet and the outlet. The heater evaporates at least some liquid droplets in a stream received by the flow body. The sensor has one or more sensor probes in the flow body to measure a fluid property of the stream.

    摘要翻译： 流体流量计包括流体，加热器和传感器。 流动体包括入口，出口和连接入口和出口的内部通道。 加热器在由流动体接收的流中蒸发至少一些液滴。 传感器在流体中具有一个或多个传感器探针以测量流的流体性质。

    Systems and methods for reducing emissions of internal combustion engines using a fuel processor bypass
    19.
    发明授权
    Systems and methods for reducing emissions of internal combustion engines using a fuel processor bypass 失效
    使用燃料处理器旁路减少内燃机排放的系统和方法

    公开(公告)号：US08006484B2

    公开(公告)日：2011-08-30

    申请号：US11058615

    申请日：2005-02-14

    申请人： Ralph A. Dalla Betta

    发明人： Ralph A. Dalla Betta

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0878 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/2053 ,  F01N3/36 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/011 ,  F01N2240/30 ,  F01N2260/04 ,  F01N2410/12 ,  F01N2610/04 ,  Y02T10/24

    摘要： Described here are systems and methods for reducing emissions of IC engines using a fuel processor bypass. In general, the systems described here include an exhaust pipe, a bypass pipe, a valve, a fuel processor, a fuel injector, and a NOx trap. When the valve is in the open position, the entire exhaust passes through the bypass pipe. When the valve is in a closed position, the entire exhaust passes through the exhaust pipe. In some variations, the systems described here also comprise a pre-combustor, a thermal mass, a mixer, and/or a DPF. Methods for regenerating or desulfating a NOx trap are also described. Typically these methods include introducing exhaust into an exhaust pipe, opening a valve located at the inlet of a bypass pipe, injecting fuel upstream of a fuel processor, and introducing a reducing mixture into a NOx trap. The injection of fuel may be pulsed or continuous.

    摘要翻译： 这里描述了使用燃料处理器旁路来减少IC引擎的排放的系统和方法。 通常，这里描述的系统包括排气管，旁通管，阀，燃料处理器，燃料喷射器和NOx捕集器。 当阀处于打开位置时，整个排气通过旁通管。 当阀处于关闭位置时，整个排气通过排气管。 在一些变型中，这里描述的系统还包括预燃烧器，热质量块，混合器和/或DPF。 还描述了用于再生或脱硫NOx捕集器的方法。 通常，这些方法包括将排气引入排气管，打开位于旁通管入口处的阀，在燃料处理器的上游喷射燃料，并将还原混合物引入NOx捕集器。 燃料喷射可以是脉冲式的或连续的。