Engine exhaust system with sequential loading of multiple filters
    3.
    发明授权
    Engine exhaust system with sequential loading of multiple filters 失效
    发动机排气系统,连续装载多个过滤器

    公开(公告)号:US5024054A

    公开(公告)日:1991-06-18

    申请号:US607601

    申请日:1990-10-31

    Abstract: In a diesel engine exhaust system a plurality of valved ceramic filters are connected in parallel in the exhaust stream and loaded sequentially. While one filter is preferentially loaded, a second filter is opened to the exhaust stream when backpressure reaches a predetermined value. The secondary filter is removed from the exhaust stream when air flow to the engine drops a discrete amount below a peak air flow determined by the backpressure which would cause the secondary filter to be placed in the exhaust stream. The preferentially loaded filter is bypassed when completely loaded and regenerated. The secondary filter is then preferentially loaded and the sequence continues.

    Abstract translation: 在柴油发动机排气系统中,多个阀式陶瓷过滤器在排气流中并联连接并依次加载。 当优先加载一个过滤器时,当背压达到预定值时,第二过滤器对排气流打开。 当空气流到发动机的空气流下降离子量低于由背压确定的峰值空气流量时,会使二次过滤器被放置在废气流中,二级过滤器从废气流中排出。 当完全加载和再生时,优先加载的过滤器被旁路。 然后优先加载次级滤波器,并且序列继续。

    Engine exhaust particle trap captured mass sensor
    6.
    发明授权
    Engine exhaust particle trap captured mass sensor 失效
    发动机尾气颗粒捕集器捕获质量传感器

    公开(公告)号:US4986069A

    公开(公告)日:1991-01-22

    申请号:US399859

    申请日:1989-08-29

    Abstract: A sensor device having mechanisms for obtaining air mass flow rate into the engine, pressure drop across the filter, and adsolute temperature near the inlet end of the filter to calculate a factor proportional to pressure drop and inversely proportional to air mass flow rate and absolute temperature, all of which are raised to powers determined from empirical data for a particular system. When the calculated factor k exceeds a predermined value, system regeneration is initiated. The sensor mechanism and method is indpendent of engine exhaust flow, engine speed, and exhaust temperature.

    Abstract translation: 具有用于获得进入发动机的空气质量流率,过滤器上的压降和过滤器入口端附近的绝对温度的机构的传感器装置,以计算与压降成正比的因子,并与空气质量流量和绝对温度成反比 所有这些都是由特定系统的实证数据确定的。 当计算因子k超过预定值时,系统再生开始。 传感器机构和方法独立于发动机排气流量,发动机转速和排气温度。

    Apparatus for cleaning exhaust aftertreatment devices and methods
    10.
    发明授权
    Apparatus for cleaning exhaust aftertreatment devices and methods 有权
    排气后处理装置及方法的清洗装置

    公开(公告)号:US07410530B2

    公开(公告)日:2008-08-12

    申请号:US11335163

    申请日:2006-01-18

    CPC classification number: B01D41/04 F01N3/0217 F01N3/0237

    Abstract: The present disclosure relates to a pulse cleaner for cleaning a diesel exhaust treatment device. The pulse cleaner includes a cabinet, a diesel exhaust treatment device mount positioned within the cabinet for mounting the diesel exhaust treatment device during pulse cleaning, and a collection filter positioned within the cabinet for collecting material displaced from the diesel exhaust treatment device during cleaning. The pulse cleaner also includes a pulse generator for generating pulses that are each directed at a majority of a face of the diesel exhaust treatment device when the diesel exhaust treatment device is mounted at the diesel exhaust treatment device mount. The pulse generator includes a pressure tank for accumulating pressurized air, and a valve arrangement that flushes the pressurized air from the tank. A pulse of air for cleaning the diesel exhaust treatment device is generated each time the tank is flushed.

    Abstract translation: 本公开涉及一种用于清洁柴油机废气处理装置的脉冲清洁器。 脉冲清洁器包括机柜,位于机柜内的柴油机排气处理装置安装座,用于在脉冲清洗过程中安装柴油机排气处理装置;以及收集过滤器,其定位在机柜内,用于收集在清洁过程中从柴油机排气处理装置排出的物料。 当柴油机废气处理装置安装在柴油机废气处理装置安装座时,脉冲清除器还包括用于产生各自指向柴油机废气处理装置的大部分面部的脉冲的脉冲发生器。 脉冲发生器包括用于累积加压空气的压力罐和从罐中冲洗加压空气的阀装置。 每次冲洗罐时都产生用于清洁柴油机废气处理装置的空气脉冲。

Patent Agency Ranking