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    Pre-combustors for internal combustion engines and systems and methods therefor
    3.
    发明授权
    Pre-combustors for internal combustion engines and systems and methods therefor 有权
    内燃机的预燃机及其系统及方法

    公开(公告)号：US07240483B2

    公开(公告)日：2007-07-10

    申请号：US10910213

    申请日：2004-08-02

    申请人： Joel M. Cizeron ,  Ralph A. Dalla Betta

    发明人： Joel M. Cizeron ,  Ralph A. Dalla Betta

    IPC分类号： F01N3/00

    CPC分类号： F23G7/07 ,  F01N3/023 ,  F01N3/025 ,  F01N3/0821 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/10 ,  F01N2240/14 ,  F01N2240/20 ,  F01N2240/30 ,  F01N2250/14 ,  F01N2340/00 ,  F01N2610/04 ,  F01N2610/08 ,  F02D2041/147 ,  Y02T10/24

    摘要： Described here are systems and methods for treating fuel injected exhaust streams. In general, the systems comprise a fuel injector, a pre-combustor, and a fuel combustor. The methods described herein include methods for regenerating a NOx trap or a DPF, and methods for generating a substantially uniform fuel air mixture at a fuel combustor inlet, or a substantially uniform temperature at a fuel combustor outlet. The methods of regenerating a NOx trap typically comprise the steps of injecting fuel into an exhaust stream, passing the stream through a pre-combustor, operating the pre-combustor to at least partially combust the injected fuel, reacting the fuel and exhaust stream mixture within a fuel combustor to generate a reducing gas mixture, and introducing the reducing gas mixture into a NOx trap, whereby the NOx trap is regenerated. Similar methods for regenerating a diesel particulate filter are also described. Control strategies are also provided.

    摘要翻译： 这里描述了用于处理燃料喷射废气流的系统和方法。 通常，系统包括燃料喷射器，预燃烧器和燃料燃烧器。 本文描述的方法包括用于再生NO x 2阱或DPF的方法，以及用于在燃料燃烧器入口处产生基本均匀的燃料空气混合物或在燃料燃烧器出口处基本均匀的温度的方法。 再生NO 2阱陷阱的方法通常包括以下步骤：将燃料喷射到排气流中，使流经过预燃烧器，操作预燃烧器至少部分地燃烧喷射的燃料， 使燃料和排气流混合物在燃料燃烧器内反应以产生还原性气体混合物，并将还原性气体混合物引入到氮气捕集器中，由此NO X阱陷阱是 再生 还描述了用于再生柴油微粒过滤器的类似方法。 还提供控制策略。

    Pre-combustor and large channel combustor system for operation of a fuel reformer at low exhaust temperatures
    5.
    发明授权
    Pre-combustor and large channel combustor system for operation of a fuel reformer at low exhaust temperatures 有权
    预燃烧器和大通道燃烧器系统，用于在低排气温度下操作燃料重整器

    公开(公告)号：US08074443B2

    公开(公告)日：2011-12-13

    申请号：US11983909

    申请日：2007-11-13

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

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

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0814 ,  F01N3/0253 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/103 ,  F01N3/2033 ,  F01N3/2066 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2330/48 ,  F01N2340/00 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/03 ,  Y02T10/24 ,  Y02T10/26

    摘要： An exhaust aftertreatment system is provided with a large channel combustor, a fuel reformer, and a lean NOX trap. The lean NOX trap is denitrated by steps comprising: heating the fuel reformer to steam reforming temperatures by introducing vaporized fuel to the large channel combustor and combusting a portion of the vaporized fuel under lean conditions, then making the exhaust-injected fuel mixture overall rich, whereby the fuel reformer produces syn gas that denitrates the lean NOX trap. The fuel reformer has a low thermal mass, whereby it is designed to heat to at least about 500° C. and catalyze steam reforming reaction with each denitration. The large channel combustor is a monolith having an average channel size larger than the fuel reformer and a thermal mass no more than about 20% that of the fuel reformer, whereby the large channel combustor facilitates low temperature startup of the fuel reformer.

    摘要翻译： 排气后处理系统设置有大通道燃烧器，燃料重整器和贫NOx捕集器。 贫NOX捕集阱通过以下步骤进行脱硝，包括：通过将汽化燃料引入大通道燃烧器并在贫条件下燃烧一部分蒸发燃料，然后使排气喷射的燃料混合物整体富集，将燃料重整器加热至蒸汽重整温度， 由此燃料重整器产生脱气贫NOX捕集器的合成气。 燃料重整器具有低的热质量，由此其被设计成加热至至少约500℃，并且催化每个脱硝的蒸汽重整反应。 大通道燃烧器是具有大于燃料重整器的平均通道尺寸和不超过燃料重整器的约20％的热质量的整料，因此大通道燃烧器促进燃料重整器的低温启动。

    Devices and methods for reduction of NOx emissions from lean burn engines
    8.
    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：US07610752B2

    公开(公告)日：2009-11-03

    申请号：US11715854

    申请日：2007-03-08

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

    发明人： Ralph Albert Dalla Betta ,  Joel M. 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O2气流中产生H 2和CO的装置和方法。 本发明还提供了用于从含O2气流中去除NOX的装置和方法，特别是来自诸如柴油发动机的稀燃发动机的富氧排气流。 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和CO的还原混合物。所添加的燃料可以是车辆上车载燃料的一部分。 将H 2和CO并入废气流中，并通过选择性稀的NO x催化剂反应，将NO x转化为N 2。 从而提供了NOX排放控制的有效手段。