Device and method for metering a reductant for eliminating nitrogen oxides from exhaust gases
    1.
    发明申请
    Device and method for metering a reductant for eliminating nitrogen oxides from exhaust gases 审中-公开
    计量用于从排气中除去氮氧化物的还原剂的装置和方法

    公开(公告)号:US20040177606A1

    公开(公告)日:2004-09-16

    申请号:US10479696

    申请日:2004-04-29

    发明人: Cord Scharsack

    IPC分类号: F01N003/00 F01N003/10

    摘要: A method and a device are proposed for metering a reducing agent, in which means are provided for supplying the reducing agent into a catalytic converter system via a line, for the removal of nitrogen oxides from the exhaust gases, particularly of a Diesel engine, at the end of the line a metering means, especially a metering valve, being situated, and means being provided for regulating the pressure of the reducing agent in the line; the means for regulating the pressure (11, 12, 13; 11, 52, 70; 11, 13, 100) and/or the metering means (7; 120) being able to interact with a pressure recording element (12; 70; 100) which records pressure changes on the output side of the metering means facing away from the line, so that the pressure changes influence the pressure regulation and the metering.

    摘要翻译: 提出了用于计量还原剂的方法和装置,其中提供了用于经由管线将还原剂供应到催化转化器系统中的装置,用于从废气,特别是柴油发动机中除去氮氧化物, 管线的端部设有计量装置,特别是计量阀,以及用于调节管线中还原剂压力的装置; 用于调节压力的装置(11,12,13; 11,52,70; 11,13,100)和/或计量装置(7; 120)能够与压力记录元件(12; 70; 100),其记录计量装置的输出侧的背离线的压力变化,使得压力变化影响压力调节和计量。

    Control element for the simultaneous control of gaseous streams
    2.
    发明申请
    Control element for the simultaneous control of gaseous streams 失效
    用于同时控制气流的控制元件

    公开(公告)号:US20030168116A1

    公开(公告)日:2003-09-11

    申请号:US10275880

    申请日:2003-05-09

    IPC分类号: F01N003/20

    摘要: The invention relates to an apparatus for dividing an entering gas flow (1) into two split flows (20, 21), each of which flows through a branch (8, 9) of a line system. A control element (7) is provided, which executes a control motion (26) about a shaft (10) between a first position (27) and a second position (28). The entering gas flow (1) is divided continuously, by means of the adjustable control element (7), at a volumetric flow ratio VGas, and at the same time the control element (7) allocates a medium (5) to be metered, whose infeed point (3, 25) is associated with the control element (7), to the split flows (20, 21) at a different ratio VDOS.

    摘要翻译: 本发明涉及一种用于将进入气流(1)分成两个分流(20,21)的装置,每个分流通过管线系统的分支(8,9)流动。 提供控制元件(7),其在第一位置(27)和第二位置(28)之间执行关于轴(10)的控制运动(26)。 输入气流(1)通过可调节控制元件(7)以体积流量比VGas连续分配,并且同时控制元件(7)分配要计量的介质(5) 其输入点(3,25)与控制元件(7)相关联,以不同比例的VDOS与分流(20,21)相关联。

    Engine deceleration vacuum differential valve control
    4.
    发明授权
    Engine deceleration vacuum differential valve control 失效
    发动机减速真空差压阀控制

    公开(公告)号:US3955364A

    公开(公告)日:1976-05-11

    申请号:US430818

    申请日:1974-01-04

    申请人: John A. Lewis

    发明人: John A. Lewis

    IPC分类号: F01N3/22 F02B75/10

    摘要: A valve located in an engine intake manifold vacuum line is operated by differential vacuum forces to temporarily open an air bleed during engine deceleration high manifold vacuums to apply atmospheric pressure to a vacuum controlled unit that then bypasses air away from a catalytic converter and the engine to protect the converter and prevent backfire.

    摘要翻译: 位于发动机进气歧管真空管路中的阀门通过差分真空力来操作,以在发动机减速期间临时打开空气泄放高歧管真空,以将真空控制单元施加大气压力,然后将空气从催化转化器和发动机旁路 保护转换器并防止回火。

    Exhaust chamber for a motor vehicle provided with an internal combustion engine
    5.
    发明授权
    Exhaust chamber for a motor vehicle provided with an internal combustion engine 失效
    用于内燃机的汽车排气室

    公开(公告)号:US3751917A

    公开(公告)日:1973-08-14

    申请号:US3751917D

    申请日:1971-10-13

    申请人: ALFA ROMEO SPA

    发明人: CARCEA G

    IPC分类号: F01N3/20 F01N3/28 F01N3/14

    摘要: An exhaust chamber for internal combustion engines of motor vehicles, in which the exhaust gases, before being discharged to the atmosphere, are passed through one of two coaxial chambers, with the inner chamber being filled with a suitable catalyst for the combustion of unburnt substances, depending on the load condition of the engine, so that the catalyst is contacted by these exhaust gases only at low working power.

    摘要翻译: 用于机动车辆的内燃机的排气室,其中废气在排放到大气之前通过两个同轴的室中的一个,其中内室充满用于燃烧未燃烧物质的合适的催化剂, 取决于发动机的负载状况,使得催化剂仅在低功率下被这些废气接触。

    Exhaust gas line of an internal combustion engine
    6.
    发明申请
    Exhaust gas line of an internal combustion engine 有权
    内燃机排气管线

    公开(公告)号:US20090133390A1

    公开(公告)日:2009-05-28

    申请号:US11989000

    申请日:2006-07-04

    IPC分类号: F01N3/10

    摘要: The invention relates to an exhaust gas line (1) of an internal combustion engine, comprising at least one catalytic converter (2) which is provided with at least one catalytic converter support (4) which is arranged in the housing (3) and which comprises at least one first and one second area (5, 6) which can be flowed through in parallel, with the flow being capable of being deactivated in at least one area by means of a switching device (8) arranged in the exhaust gas line (1). In order to achieve a rapid activation of the catalytic converter in the simplest possible and most compact way it is provided that the areas (5, 6) of the catalytic converter support (4) have different physical and/or chemical properties in relation to response behavior, permeability, catalytic activity and/or thermal inertia.

    摘要翻译: 本发明涉及一种内燃机的废气管线(1),其包括至少一个催化转化器(2),该催化转化器设置有至少一个设置在壳体(3)中的催化转化器支架(4),并且 包括可平行流动的至少一个第一和第二区域(5,6),其中流动能够通过布置在排气管线中的开关装置(8)在至少一个区域中停用 (1)。 为了以最简单和最紧凑的方式实现催化转化器的快速活化,条件是催化转化器支架(4)的区域(5,6)相对于响应具有不同的物理和/或化学性质 行为,渗透性,催化活性和/或热惯性。

    Velocity control of exhaust valve actuation

    公开(公告)号:US07243623B2

    公开(公告)日:2007-07-17

    申请号:US11174883

    申请日:2005-07-05

    IPC分类号: F01L9/04

    摘要: An exhaust valve assembly includes a valve body supported on a shaft for rotation within an exhaust component. The shaft is coupled to a solenoid with a linkage assembly. A controller controls the solenoid to rotate the shaft via the linkage assembly. The solenoid includes a plunger that moves between an actuation position and a release position. The controller utilizes pulse width modulation to control actuation and release of the plunger. This significantly reduces operational noises generated as the solenoid is moved between the actuation position and the release position.

    Turbo catalyst light-off device
    8.
    发明申请
    Turbo catalyst light-off device 审中-公开
    涡轮催化剂灭火装置

    公开(公告)号:US20070089413A1

    公开(公告)日:2007-04-26

    申请号:US11255328

    申请日:2005-10-21

    IPC分类号: F02D23/00 F02B33/44

    摘要: A turbine housing for an engine turbocharger includes a turbine outlet port fluidly coupled to an expansion mechanism, a waste port fluidly coupled to a collector, and a valve assembly rotatable between a first position blocking the turbine outlet port and a second position blocking the waste port. The valve assembly directs exhaust gas through the waste port in the first position and directs exhaust gas through the turbine outlet port in the second position. The valve assembly is in the first position during engine start-up to direct exhaust gas from the engine through the collector and into a catalyst. The valve assembly is in the second position a predetermined time following engine start-up to direct exhaust gas from the engine to the expansion mechanism.

    摘要翻译: 用于发动机涡轮增压器的涡轮机壳体包括流体地联接到膨胀机构的涡轮机出口端口,流体地联接到收集器的废物端口以及可在阻挡涡轮机出口端口的第一位置和阻挡废气端口的第二位置之间旋转的阀组件 。 阀组件在第一位置引导废气通过废物端口,并引导废气通过涡轮机出口在第二位置。 在发动机起动期间,阀组件处于第一位置,以引导来自发动机的废气通过集气器并进入催化剂。 发动机启动后,阀组件处于第二位置,将排气从发动机引导到膨胀机构。

    Exhaust system for an internal combustion engine, burn-off unit and
methods therefor
    10.
    发明授权
    Exhaust system for an internal combustion engine, burn-off unit and methods therefor 失效
    用于内燃机的排气系统,燃烧单元及其方法

    公开(公告)号:US4505106A

    公开(公告)日:1985-03-19

    申请号:US587201

    申请日:1984-03-07

    摘要: An exhaust system for an internal combustion engine which burns a hydrocarbon fuel mixture and which produces a carbonaceous particle carrying exhaust gas stream that passes through a filter of the system that retains at least part of the particles therein, the system having a burn-off unit for periodically burning the retained particles in the filter to tend to periodically clean the filter of the retained particles thereof. The burn-off unit is adapted to raise the temperature of the exhaust gas stream intermediate the engine and the filter to raise the temperature of the filter to particle burning temperature thereof, the burn-off unit injecting and burning a certain amount of the hydrocarbon fuel mixture in the exhaust gas stream intermediate the engine and the filter to raise the temperature of the exhaust gas stream intermediate the engine and the filter. The fuel mixture is injected into the exhaust gas stream by an aspirating unit of the burn-off unit, and the temperature of the exhaust gas stream is raised by an electrical heater and a catalyst bed in which the injected fuel mixture is to burn.

    摘要翻译: 一种用于内燃机的排气系统,其燃烧烃类燃料混合物并产生携带废气流的碳质颗粒,所述排放气体通过系统的过滤器,所述过滤器将至少部分颗粒保持在其中,所述系统具有燃烧单元 用于周期性地将保留的颗粒燃烧在过滤器中以倾向于周期性地清洁其保留颗粒的过滤器。 燃烧单元适于提高发动机和过滤器之间的废气流的温度,以将过滤器的温度升高到其颗粒燃烧温度,燃烧单元注入并燃烧一定量的烃燃料 在发动机和过滤器之间的废气流中的混合物,以提高发动机和过滤器之间的废气流的温度。 燃料混合物通过燃烧单元的抽吸单元注入排气流中,并且通过电加热器和喷射的燃料混合物要燃烧的催化剂床来提高废气流的温度。