Exhaust gas cleaning system having particulate filter
    16.
    发明授权
    Exhaust gas cleaning system having particulate filter 有权
    具有微粒过滤器的排气净化系统

    公开(公告)号:US06758039B2

    公开(公告)日:2004-07-06

    申请号:US10460207

    申请日:2003-06-13

    IPC分类号: F01N302

    摘要: In an exhaust gas cleaning system of an internal combustion engine having a diesel particulate filter (DPF), measuring accuracy of a collection quantity of particulate matters collected by the DPF is estimated based on an accelerator position change rate and an exhaust gas flow rate. When the measuring accuracy is high, the collection quantity is calculated based on a pressure difference and the exhaust gas flow rate at the DPF. If the measuring accuracy is low, an increment value of the collection quantity is calculated based on a quantity of the particulate matters discharged from an engine main body. Then, the collection quantity is calculated by adding the collection quantity increment value to the previous collection quantity calculated based on the pressure difference and the exhaust gas flow rate while the measuring accuracy is high.

    摘要翻译: 在具有柴油机微粒过滤器(DPF)的内燃机的废气净化系统中,基于加速器位置变化率和废气流量来推定由DPF收集的颗粒物质的收集量的测量精度。 当测量精度高时,基于DPF的压力差和排气流量来计算收集量。 如果测量精度低,则基于从发动机主体排出的颗粒物的量来计算收集量的增量值。 然后,通过将采集量增量值与在测量精度高时基于压差和排气流量计算的先前收集量相加来计算收集量。

    Exhaust emission control device for internal combustion engine
    17.
    发明授权
    Exhaust emission control device for internal combustion engine 失效
    内燃机废气排放控制装置

    公开(公告)号:US08256207B2

    公开(公告)日:2012-09-04

    申请号:US12182380

    申请日:2008-07-30

    IPC分类号: F01N3/18

    摘要: An exhaust emission control device removes particulate matters contained in exhaust gas of an internal combustion engine and deposited in a particulate filter. The device has a catalyst judging block judging the catalytic activity of catalyst held in the particulate filter, an exhaust gas detecting block detecting a flow rate of the exhaust gas, an injection type selecting block selecting a first fuel injection type or a second fuel injection type according to the catalytic activity and the flow rate of the exhaust gas, and a fuel injection control block controlling fuel injected into the engine to heighten the temperature of the exhaust gas according to the first fuel injection type and to supply unburned hydrocarbons to the particulate filter according to the second fuel injection type.

    摘要翻译: 废气排放控制装置去除内燃机废气中所含的颗粒物并沉积在颗粒过滤器中。 该装置具有判断保持在颗粒过滤器中的催化剂的催化活性的催化剂判定块,检测排气流量的废气检测块,选择第一燃料喷射型或第二燃料喷射型的喷射型选择块 根据催化活性和废气流量,以及燃料喷射控制块,其控制喷射到发动机中的燃料,以根据第一燃料喷射型提高废气的温度,并将未燃烧的碳氢化合物供应到颗粒过滤器 根据第二种燃油喷射型。

    Exhaust purification device
    18.
    发明授权
    Exhaust purification device 有权
    排气净化装置

    公开(公告)号:US08151559B2

    公开(公告)日:2012-04-10

    申请号:US12155524

    申请日:2008-06-05

    IPC分类号: F01N3/00

    摘要: An exhaust purification device increases temperature of a particulate filter by at least one of a first temperature increase device and a second temperature increase device to combust and remove particulate matters deposited in a particulate filter. The second temperature increase device increases the temperature of the particulate filter to temperature higher than the temperature achieved by the first temperature increase device. An engine output at the time when the second temperature increase device performs the temperature increase operation is equal to an engine output at the time when the first temperature increase device performs the temperature increase operation. The exhaust purification device sets a ratio between an operation period of the first temperature increase device and an operation period of the second temperature increase device according to estimated temperature of the particulate filter.

    摘要翻译: 排气净化装置通过第一升温装置和第二升温装置中的至少一个来增加颗粒过滤器的温度,以燃烧和除去沉积在颗粒过滤器中的颗粒物质。 第二升温装置将微粒过滤器的温度升高到高于由第一升温装置实现的温度的温度。 第二升温装置执行升温运转时的发动机输出等于第一升温装置进行升温运转时的发动机输出。 排气净化装置根据微粒过滤器的推定温度来设定第一升温装置的运转期间和第二升温装置的运转期间的比例。

    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    19.
    发明申请
    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
    用于内燃机的排气排放控制装置

    公开(公告)号:US20090037082A1

    公开(公告)日:2009-02-05

    申请号:US12182380

    申请日:2008-07-30

    IPC分类号: F02D41/30 F01N3/025 F01N3/035

    摘要: An exhaust emission control device removes particulate matters contained in exhaust gas of an internal combustion engine and deposited in a particulate filter. The device has a catalyst judging block judging the catalytic activity of catalyst held in the particulate filter, an exhaust gas detecting block detecting a flow rate of the exhaust gas, an injection type selecting block selecting a first fuel injection type or a second fuel injection type according to the catalytic activity and the flow rate of the exhaust gas, and a fuel injection control block controlling fuel injected into the engine to heighten the temperature of the exhaust gas according to the first fuel injection type and to supply unburned hydrocarbons to the particulate filter according to the second fuel injection type.

    摘要翻译: 废气排放控制装置去除内燃机废气中所含的颗粒物并沉积在颗粒过滤器中。 该装置具有判断保持在颗粒过滤器中的催化剂的催化活性的催化剂判定块,检测排气流量的废气检测块,选择第一燃料喷射型或第二燃料喷射型的喷射型选择块 根据催化活性和废气流量,以及燃料喷射控制块,其控制喷射到发动机中的燃料,以根据第一燃料喷射型提高废气的温度,并将未燃烧的碳氢化合物供应到颗粒过滤器 根据第二种燃油喷射型。

    Exhaust purification device
    20.
    发明申请
    Exhaust purification device 有权
    排气净化装置

    公开(公告)号:US20080314029A1

    公开(公告)日:2008-12-25

    申请号:US12155524

    申请日:2008-06-05

    IPC分类号: F01N9/00

    摘要: An exhaust purification device increases temperature of a particulate filter by at least one of a first temperature increase device and a second temperature increase device to combust and remove particulate matters deposited in a particulate filter. The second temperature increase device increases the temperature of the particulate filter to temperature higher than the temperature achieved by the first temperature increase device. An engine output at the time when the second temperature increase device performs the temperature increase operation is equal to an engine output at the time when the first temperature increase device performs the temperature increase operation. The exhaust purification device sets a ratio between an operation period of the first temperature increase device and an operation period of the second temperature increase device according to estimated temperature of the particulate filter.

    摘要翻译: 排气净化装置通过第一升温装置和第二升温装置中的至少一个来增加颗粒过滤器的温度,以燃烧和除去沉积在颗粒过滤器中的颗粒物质。 第二升温装置将微粒过滤器的温度升高到高于由第一升温装置实现的温度的温度。 第二升温装置执行升温运转时的发动机输出等于第一升温装置进行升温运转时的发动机输出。 排气净化装置根据微粒过滤器的推定温度来设定第一升温装置的运转期间和第二升温装置的运转期间的比例。