Exhaust gas purifying method
    1.
    发明公开
    Exhaust gas purifying method 有权
    Abgasreinigungsverfahren

    公开(公告)号:EP1717422A2

    公开(公告)日:2006-11-02

    申请号:EP06015373.1

    申请日:2004-05-10

    IPC分类号: F01N3/08

    摘要: In order to improve a purification of exhaust gas from cold HC, it is provided an exhaust gas purifying method for an internal combustion engine which uses an exhaust gas purifying system comprising a first catalyst, which contains a noble metal and reduces hydrocarbons contained in an exhaust gas, and a second catalyst, which is disposed downstream of the first catalyst and contains β-zeolite, wherein the method comprises the step of discharging the exhaust gas having an oxygen concentration of not less than 4% continuously or intermittently from the internal combustion engine at a time of engine cold start conditions.

    摘要翻译: 为了提高来自冷HC的废气净化,提供了一种内燃机(3)的排气净化方法,该内燃机使用包括含有贵金属的第一催化剂(5)的废气净化系统和 还原废气中含有的烃,以及设置在第一催化剂(5)的下游并含有β-沸石的第二催化剂(7),其中,该方法包括:排出不含氧浓度的废气的工序 在发动机冷起动条件下,从内燃机连续或间歇地小于4%。

    Exhaust gas purifying system
    5.
    发明公开
    Exhaust gas purifying system 有权
    Abgasreinigungsverfahren

    公开(公告)号:EP1482139A1

    公开(公告)日:2004-12-01

    申请号:EP04011106.4

    申请日:2004-05-10

    IPC分类号: F01N3/08

    摘要: An exhaust gas purifying system of the present invention comprises a first catalyst which contains a noble metal and reduces hydrocarbons contained in exhaust gas, and a second catalyst which is disposed downstream of the first catalyst and contains β-zeolite. In the exhaust gas purifying system, a mixed gas having an air-fuel ratio of not less than 25 is burned in an internal combustion engine, and the internal combustion engine discharges the exhaust gas having an oxygen concentration of not less than 4% continuously or intermittently.

    摘要翻译: 该系统具有含有贵金属和还原废气中所含的烃的催化剂(5)。 另一催化剂(7)设置在催化剂(5)的下游并含有β-沸石。 混合气体的空燃比为25以上,在内燃机(3)中燃烧。 发动机连续排出氧浓度不小于4%的废气。

    Exhaust gas purifying method
    7.
    发明公开
    Exhaust gas purifying method 有权
    废气净化方法

    公开(公告)号:EP1717422A3

    公开(公告)日:2006-11-15

    申请号:EP06015373.1

    申请日:2004-05-10

    IPC分类号: F01N3/08

    摘要: In order to improve a purification of exhaust gas from cold HC, it is provided an exhaust gas purifying method for an internal combustion engine (3) which uses an exhaust gas purifying system comprising a first catalyst (5), which contains a noble metal and reduces hydrocarbons contained in an exhaust gas, and a second catalyst (7), which is disposed downstream of the first catalyst (5) and contains β-zeolite, wherein the method comprises the step of discharging the exhaust gas having an oxygen concentration of not less than 4% continuously or intermittently from the internal combustion engine at a time of engine cold start conditions.

    摘要翻译: 为了改善冷HC的排气净化,提供一种使用废气净化系统的内燃机(3)的废气净化方法,所述废气净化系统包括含有贵金属的第一催化剂(5)和 还原包含在废气中的烃和设置在第一催化剂(5)下游并含有β-沸石的第二催化剂(7),其中所述方法包括将具有氧浓度的废气 在发动机冷起动条件时,从内燃机连续或间歇地少于4%。

    Catalyst for selectively oxidizing carbon monoxide
    9.
    发明公开
    Catalyst for selectively oxidizing carbon monoxide 有权
    Katalysator zur selektiven氧化von Kohlenmonoxid

    公开(公告)号:EP1287889A2

    公开(公告)日:2003-03-05

    申请号:EP02019702.6

    申请日:2002-09-02

    摘要: A catalyst (5) for selectively oxidizing carbon monoxide, wherein a noble metal (3) and an active oxygen supply material (4) capable of oxidizing carbon monoxide are supported on a substrate (6). Favorable selective oxidation of carbon monoxide can be obtained by setting the distance between the noble metal (3) and the active oxygen supply material (4) such that the noble metal (3) is close enough to accept active oxygen from the active oxygen supply material (4), and preferably within 0.1 mm. This catalyst (5) for selectively oxidizing carbon monoxide is effective at removing carbon monoxide from a reformate gas whose main component is hydrogen and which is supplied to a fuel cell.

    摘要翻译: 用于选择性地氧化一氧化碳的催化剂(5),其中贵金属(3)和能够氧化一氧化碳的活性氧供应材料(4)被负载在基板(6)上。 通过设置贵金属(3)和活性氧供给材料(4)之间的距离使得贵金属(3)足够接近活性氧供给材料的活性氧可以获得一氧化碳的有利的选择性氧化 (4),优选在0.1mm以内。 用于选择性地氧化一氧化碳的催化剂(5)有效地从主要成分为氢的重整气体中除去一氧化碳,并被供应到燃料电池。

    Particulate matter trap filter regeneration temperature control for internal combustion engine
    10.
    发明公开
    Particulate matter trap filter regeneration temperature control for internal combustion engine 审中-公开
    TemperatursteuerungfürFeststoffabscheidungsfilterregenerierungfürVerbrennungsmotor

    公开(公告)号:EP2063089A2

    公开(公告)日:2009-05-27

    申请号:EP08020256.7

    申请日:2008-11-20

    IPC分类号: F02D41/02

    CPC分类号: F02D41/029 Y02T10/22

    摘要: An internal combustion engine (1) comprises a fuel injector (9), a filter (13) which traps particulate matter in exhaust gas, and a catalyst (14) which oxidizes unburnt fuel or carbon monoxide in the exhaust gas on the upstream side of the filter (13). When regeneration of the filter (13) is required, a controller (21) determines a post-injection fuel injection timing and a post-injection fuel injection amount of the fuel injector (9) on the basis of an upstream exhaust gas temperature ( Texh ) and a catalyst temperature ( Tcat ) (S16, S17, S19, S20, S22, S23, S25, S26, S28), thereby optimizing the regeneration temperature condition of the filter (13).

    摘要翻译: 内燃机(1)包括燃料喷射器(9),捕集排气中的颗粒物质的过滤器(13),以及催化剂(14),其在排气中的未燃烧的燃料或一氧化碳上氧化, 过滤器(13)。 当需要过滤器(13)的再生时,控制器(21)基于上游废气温度(Texh)来确定燃料喷射器(9)的后喷射燃料喷射正时和后喷射燃料喷射量 )和催化剂温度(Tcat)(S16,S17,S19,S20,S22,S23,S25,S26,S28),从而优化过滤器(13)的再生温度条件。