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    OPERATING METHODS FOR SELECTIVE CATALYTIC REDUCTION OF NOx
    2.
    发明申请
    OPERATING METHODS FOR SELECTIVE CATALYTIC REDUCTION OF NOx 审中-公开
    选择性催化还原NOx的操作方法

    公开(公告)号：US20120079813A1

    公开(公告)日：2012-04-05

    申请号：US12897906

    申请日：2010-10-05

    申请人： THOMPSON M. SLOANE ,  KEVIN L. PERRY ,  DAVID L. HILDEN ,  NORMAN D. BRINKMAN ,  JONG H. LEE ,  MICHAEL B. VIOLA ,  STEVEN J. SCHMIEG

    发明人： THOMPSON M. SLOANE ,  KEVIN L. PERRY ,  DAVID L. HILDEN ,  NORMAN D. BRINKMAN ,  JONG H. LEE ,  MICHAEL B. VIOLA ,  STEVEN J. SCHMIEG

    IPC分类号： F01N9/00 ,  F01N3/20

    CPC分类号： F01N9/00 ,  F01N3/208 ,  F01N2610/03 ,  F01N2610/06 ,  F01N2900/18 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    摘要： Where oxygenated hydrocarbons, such as ethanol, may be considered for use as a reductant to be added to diesel or gasoline engine exhaust for promoting the catalyzed reduction of NOx to N2, there is a need to continually adjust the amount of the reductant to be added as engine and catalyst operating conditions change. It is found that useful methods, to be practiced using a suitably programmed on-vehicle computer, can be based on a correlation for ethanol, or other specific reductant, with continually measured values of catalyst temperature, the oxygen and NOx contents of the exhaust, and the volumetric flow rate of the exhaust over a reduction catalyst, such as silver supported on alumina, selected for reduction of NOx to nitrogen. Effective amounts of the reductant for substantial reduction of NOx may be reliably determined using at least such parameters.

    摘要翻译： 当氧化烃如乙醇被认为可用作还原剂加入到柴油或汽油发动机废气中以促进NOx催化还原成N2时，需要不断调整还原剂的量 随着发动机和催化剂的运行条件的变化。 发现使用适当编程的车载计算机实施的有用方法可以基于乙醇或其它特定还原剂的相关性，其中连续测量催化剂温度值，排气的氧气和NOx含量， 以及选择用于还原NOx至氮的还原催化剂（例如负载在氧化铝上的银）的排气的体积流量。 可以使用至少这样的参数可靠地确定用于大量还原NOx的还原剂的有效量。

    Method and apparatus for generating a reductant in an exhaust gas of a compression-ignition engine
    4.
    发明授权
    Method and apparatus for generating a reductant in an exhaust gas of a compression-ignition engine 有权
    在压缩点火式发动机的排气中产生还原剂的方法和装置

    公开(公告)号：US07877986B2

    公开(公告)日：2011-02-01

    申请号：US11744396

    申请日：2007-05-04

    申请人： Thompson M. Sloane

    发明人： Thompson M. Sloane

    IPC分类号： F02B27/04 ,  F01N3/00 ,  F01N3/10

    CPC分类号： F01N3/2073 ,  F01N2430/085 ,  F01N2610/03 ,  F02D35/025 ,  F02D41/027 ,  F02D41/405 ,  Y02T10/44

    摘要： A method and apparatus are provided for generating a reductant in an exhaust gas feedstream of a compression-ignition internal combustion engine upstream of a hydrocarbon-selective catalytic reduction catalyst. The method comprises injecting a quantity of fuel into the exhaust gas subsequent to a combustion event whereat a temperature of the exhaust gas is in a range of 670 K to 1100 K at a start of the injection. The generated reductant comprises an active species including an oxygenated fuel species.

    摘要翻译： 提供了一种方法和装置，用于在烃选择性催化还原催化剂上游的压燃式内燃机的废气进料流中产生还原剂。 该方法包括在燃烧事件之后将一定数量的燃料喷射到废气中，其中在喷射开始时废气的温度在670K至1100K的范围内。 产生的还原剂包括活性物质，其包括含氧燃料物质。

    Method and apparatus for controlling ignition timing in a compression-ignition engine operating in an auto-ignition mode
    9.
    发明授权
    Method and apparatus for controlling ignition timing in a compression-ignition engine operating in an auto-ignition mode 有权
    用于控制在自动点火模式下操作的压燃式发动机中的点火正时的方法和装置

    公开(公告)号：US07703434B2

    公开(公告)日：2010-04-27

    申请号：US11758025

    申请日：2007-06-05

    申请人： Thompson M. Sloane ,  Norman D. Brinkman

    发明人： Thompson M. Sloane ,  Norman D. Brinkman

    IPC分类号： F02B23/00

    CPC分类号： F02D41/345 ,  F02D13/0265 ,  F02D41/006 ,  F02D41/0245 ,  F02D41/3035 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/44

    摘要： A method for controlling timing of ignition of a fuel charge in a compression-ignition engine operating in a controlled auto-ignition mode wherein the engine includes controllable intake and exhaust valve actuation systems is described. The method comprises determining a preferred ignition timing for a cylinder charge and a mass of the fuel charge based upon operator torque request. A portion of the fuel charge is partially oxidized during a negative valve overlap period immediately prior to a compression stroke. Magnitude of the portion of the fuel charge is based upon the preferred ignition timing of the cylinder charge. A remainder of the fuel charge is injected into the cylinder during the compression stroke.

    摘要翻译： 一种用于控制在可控自动点火模式下操作的压燃式发动机中的燃料充注时间的方法，其中发动机包括可控制的进气和排气阀驱动系统。 该方法包括基于操作者扭矩请求确定气缸充气的优选点火正时和燃料充量的质量。 燃料电荷的一部分在压缩冲程之前的负阀重叠期间被部分氧化。 燃料充电部分的大小基于气缸充电的优选点火正时。 在压缩冲程期间，剩余的燃料装料被注入到气缸中。

    Method and apparatus to control operation of a homogeneous charge compression-ignition engine
    10.
    发明授权
    Method and apparatus to control operation of a homogeneous charge compression-ignition engine 有权
    控制均质充气压缩点火发动机运行的方法和装置

    公开(公告)号：US07360523B2

    公开(公告)日：2008-04-22

    申请号：US11749903

    申请日：2007-05-17

    申请人： Thompson M. Sloane ,  Tang-Wei Kuo ,  Jun-Mo Kang ,  Paul M. Najt

    发明人： Thompson M. Sloane ,  Tang-Wei Kuo ,  Jun-Mo Kang ,  Paul M. Najt

    IPC分类号： F02B1/10 ,  F02B1/14 ,  F02M25/07 ,  F01L1/34

    CPC分类号： F02B17/005 ,  F01L1/185 ,  F01L1/34 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2820/01 ,  F02D13/0265 ,  F02D41/0052 ,  F02D41/006 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/402 ,  F02D2200/703 ,  Y02T10/128 ,  Y02T10/44

    摘要： The invention provides a method for operating a multi-cylinder, spark-ignition, direct-injection, four-stroke internal-combustion engine adapted to operate in a controlled auto-ignition mode selectively operative at stoichiometry and lean of stoichiometry. The method comprises adapting an engine valve actuation system to control engine valve opening and closing, and monitoring engine operating conditions and ambient barometric pressure. The engine is operated unthrottled and the engine valve actuation system is controlled to effect a negative valve overlap period when the engine operating conditions are within predetermined ranges. A mass of fuel is injected during the negative valve overlap period. The magnitude of the negative valve overlap period is decreased with decreasing ambient pressure and increased with increasing ambient pressure.

    摘要翻译： 本发明提供一种用于操作多气缸，火花点火，直接喷射四冲程内燃机的方法，其适于以控制的自动点火模式操作，其选择性地以化学计量学和化学计量学的方式操作。 该方法包括调整发动机气门致动系统以控制发动机气门的打开和关闭，以及监测发动机运行状况和环境气压。 发动机被无节流地操作，并且当发动机操作条件在预定范围内时，发动机气门致动系统被控制以实现负阀重叠时段。 在负阀重叠期间，燃料的质量被注入。 负气门重叠周期的大小随着环境压力的降低而降低，随环境压力的增加而增加。