Method and arrangement for control of air-fuel ratio of combustion engine
    2.
    发明授权
    Method and arrangement for control of air-fuel ratio of combustion engine 失效
    用于控制内燃机空燃比的方法和装置

    公开(公告)号:US06467258B1

    公开(公告)日:2002-10-22

    申请号:US09666686

    申请日:2000-09-20

    IPC分类号: F01N300

    摘要: A method and arrangement for control of a combustion engine (11) having control elements (4, 5, 17) for generation of an air/fuel mixture to each cylinder (3) of the engine (1), an exhaust system (7, 8) which is connected to the engine (1), an exhaust catalyst (10) and a NOx absorbent (11) which are provided in the exhaust system (7, 8), which method comprises: control of the control elements (4, 5, 17) in a first operating condition for generation of a comparatively lean exhaust gas mixture to the NOx adsorbent (11) for adsorption of NOx compounds in the exhaust gas mixture, and control of the control elements (4, 5, 17) in a second operating condition for generation of a comparatively rich exhaust gas mixture to the NOx absorbent (11) for desorption of NOx compounds in the exhaust gas mixture. The invention is characterized in that it comprises: detection of whether at least one condition in the vehicle prevails which corresponds to an initiation of a change-over from the first operating condition to the second operating condition, wherein all adjustment of the air/fuel mixture to the engine (1) is carried out, wherein the generation of a rich exhaust gas mixture is initiated for desorption of NOx compounds in the NOx adsorbent (11) depending on the conditions.

    摘要翻译: 一种用于控制内燃机(11)的方法和装置,其具有用于产生到发动机(1)的每个气缸(3)的空气/燃料混合物的控制元件(4,51,17),排气系统(7, 8),其连接到发动机(1),设置在排气系统(7,8)中的排气催化剂(10)和NOx吸收剂(11),该方法包括:控制元件(4, 5,17),用于产生用于吸附废气混合物中的NOx化合物的NOx吸附剂(11)的比较稀的废气混合物的第一操作条件,以及控制元件(4,51) 用于产生用于将废气混合物中的NOx化合物解吸的NOx吸收剂(11)的比较浓的废气混合物的第二操作条件。 本发明的特征在于:它包括:检测车辆中是否存在与从第一操作条件到第二操作条件的转换开始相对应的车辆中的至少一个状态,其中空气/燃料混合物的所有调整 发动机(1),其中根据条件开始产生富排气混合物以用于NOx吸附剂(11)中的NOx化合物的解吸。

    Fuel cell unit and fuel cell device comprising a number of said fuel cell units
    4.
    发明授权
    Fuel cell unit and fuel cell device comprising a number of said fuel cell units 失效
    燃料电池单元和包括多个燃料电池单元的燃料电池装置

    公开(公告)号:US07976970B2

    公开(公告)日:2011-07-12

    申请号:US10249162

    申请日:2003-03-19

    IPC分类号: H01M8/04

    CPC分类号: H01M8/2435

    摘要: Method and apparatus for establishing a fuel cell unit (10) in the form of an extruded monolith having channels (14), of which every second constitutes a fuel channel (14a) and every other second an oxygen channel (14b). The channels (14) are designed in such a manner that the fuel channels (14a) are displaced laterally in relation to the oxygen channels (14b), in such a way that all the fuel channels (14a) protrude a certain distance from the end points of all the oxygen channels 14b) and all the oxygen channels (14b) protrude a certain distance from the end points of all the fuel channels (14a). The distance is less than the length of respective channels. The invention also relates to a fuel cell device that includes several of the fuel cell units (10) that together establish an enhanced system of fuel cell units that lend themselves to compact.

    摘要翻译: 用于建立具有通道(14)形式的燃料电池单元(10)的方法和装置,其每一个构成燃料通道(14a),并且每隔一个构成氧气通道(14b)。 通道(14)被设计成使得燃料通道(14a)相对于氧气通道(14b)横向移位,使得所有燃料通道(14a)从端部突出一定距离 所有氧气通道14b的点)和所有氧气通道(14b)从所有燃料通道(14a)的端点突出一定距离。 该距离小于相应通道的长度。 本发明还涉及一种燃料电池装置,其包括几个燃料电池单元(10),这些燃料电池单元共同建立一个增强系统的燃料电池单元,这些燃料电池单元使其紧凑。

    Device and method for reduction of oxides of nitrogen
    5.
    发明授权
    Device and method for reduction of oxides of nitrogen 失效
    用于还原氮氧化物的装置和方法

    公开(公告)号:US06331232B1

    公开(公告)日:2001-12-18

    申请号:US09242305

    申请日:2000-03-08

    IPC分类号: C25B900

    摘要: Apparatus for the reduction of nitrogen oxides in gas streams are disclosed comprising an oxygen ion-conducting substrate, an anode disposed on the substrate, a cathode disposed on the substrate, and a voltage source connected to the anode and the cathode in which the cathode is comprised of gold so that the nitrogen oxides are adsorbed and dissociated on the cathode, nitrogen may recombine into nitrogen gas on the cathode, and oxygen ions are transported through the substrate from the cathode to the anode. Methods for the reduction of nitrogen oxides in gas streams are also disclosed.

    摘要翻译: 公开了用于还原气流中的氮氧化物的装置,其包括氧离子传导基底,设置在基底上的阳极,设置在基底上的阴极和连接到阳极和阴极的电压源,阴极是 由金组成,使得氮氧化物在阴极上被吸附和离解,氮气可能在阴极上复合成氮气,氧离子从阴极传输到阳极。 还公开了还原气流中的氮氧化物的方法。

    Catalytic combustion chamber and method for igniting and controlling the catalytic combustion chamber
    6.
    发明授权
    Catalytic combustion chamber and method for igniting and controlling the catalytic combustion chamber 失效
    催化燃烧室及催化燃烧室点火控制方法

    公开(公告)号:US06302683B1

    公开(公告)日:2001-10-16

    申请号:US09215971

    申请日:1998-12-18

    IPC分类号: F23D340

    摘要: Methods for operating catalytic combustion chambers including first and second catalytic reactors disposed in series with an intermediate chamber therebetween are disclosed, the method including heating the first catalytic reactor to a temperature at least equal to the ignition temperature of the first catalytic reactor, introducing air and fuel mixture to the first catalytic reactor whereby catalytic combustion is initiated in the first catalytic reactor, and increasing the mass flow through the first catalytic reactor whereby combustion of the air and fuel mixture takes place in the gas phase in the intermediate chamber and the end surface of the second catalytic reactor is heated to a temperature at least equal to the ignition temperature of the second catalytic reactor and ignition takes place in the second catalytic reactor.

    摘要翻译: 公开了用于操作催化燃烧室的方法,所述催化燃烧室包括与其间的中间室串联设置的第一和第二催化反应器,所述方法包括将所述第一催化反应器加热至至少等于所述第一催化反应器的着火温度的温度, 燃料混合物到第一催化反应器,由此在第一催化反应器中引发催化燃烧,并且增加通过第一催化反应器的质量流,由此空气和燃料混合物的燃烧在中间室和端面中的气相中发生 的第二催化反应器被加热到​​至少等于第二催化反应器的着火温度的温度,并且在第二催化反应器中发生点燃。

    Arrangement for analysis of exhaust gases
    8.
    发明授权
    Arrangement for analysis of exhaust gases 失效
    废气分析排列

    公开(公告)号:US06238536B1

    公开(公告)日:2001-05-29

    申请号:US08894391

    申请日:1997-09-08

    IPC分类号: G01N27407

    摘要: Exhaust gas analyzers are disclosed for analyzing the exhaust gases from a combustion process including a sensor unit mounted for direct contact with the exhaust gases in which the sensor unit includes a number of sensors such as lambda sensors, NOx sensors, oxygen sensors, and residual heat sensors, mounted on a common substrate for detecting specific gases and temperatures in the exhaust gases and generating signals based thereon, the substrate being an oxygen-ion-conductive ceramic material and the sensors elements including conductive patterns applied to the common substrate, and a common analyzer connected to the sensor units for analyzing the signals generated by the sensor elements.

    摘要翻译: 公开了用于分析来自燃烧过程的废气的排气分析器,包括安装成与废气直接接触的传感器单元,其中传感器单元包括多个传感器,例如λ传感器,NOx传感器,氧传感器和残余热 传感器,安装在公共基板上,用于检测废气中的特定气体和温度,并基于此产生信号,基板是氧离子传导陶瓷材料,传感器元件包括施加到公共基板的导电图案,以及共同的 分析仪连接到传感器单元,用于分析由传感器元件产生的信号。

    Exhaust gas purification device
    9.
    发明授权
    Exhaust gas purification device 失效
    废气净化装置

    公开(公告)号:US5787706A

    公开(公告)日:1998-08-04

    申请号:US666558

    申请日:1996-08-23

    摘要: An exhaust gas purification device (10) for trapping combustion engine exhaust emissions, particularly hydrocarbons and particulate matter, is disclosed. The device includes a casing (12) having an inlet (14) for exhaust gases from a combustion engine. The casing (12) houses a filtering and/or adsorbing medium (16), whilst a catalytic converter (22) is arranged downstream of the medium (16). A valve arrangement is provided for controlling exhaust gas flow through the filtering and/or adsorbing medium (16). The casing further includes a throughflow passage (18) adjacent the filtering and/or adsorbing medium (16), the passage running from the upstream end to the downstream end of the filtering and/or adsorbing medium (16). The passage also includes a throttling valve (20) responsive to temperatures in the device.

    摘要翻译: PCT No.PCT / SE94 / 01238 Sec。 371日期:1996年8月23日 102(e)日期1996年8月23日PCT 1994年12月22日PCT PCT。 公开号WO95 / 18292 日期1995年7月6日公开了一种用于捕集内燃机废气排放物的废气净化装置(10),特别是碳氢化合物和颗粒物质。 该装置包括具有用于来自内燃机的废气的入口(14)的壳体(12)。 壳体(12)容纳过滤和/或吸附介质(16),而催化转化器(22)布置在介质(16)的下游。 提供一种阀装置,用于控制通过过滤和/或吸附介质(16)的废气流。 壳体还包括邻近过滤和/或吸附介质(16)的通流通道(18),该通道从过滤和/或吸附介质(16)的上游端延伸到下游端。 通道还包括响应于装置中的温度的节流阀(20)。