Exhaust gas purification system and method for controlling regeneration thereof
    44.
    发明授权
    Exhaust gas purification system and method for controlling regeneration thereof 失效
    排气净化系统及其再生控制方法

    公开(公告)号:US06802180B2

    公开(公告)日:2004-10-12

    申请号:US10305121

    申请日:2002-11-27

    IPC分类号: F01N300

    摘要: An exhaust gas purification system includes the DPF to purify particulate matters in the exhaust gas of a diesel engine, comprising a regeneration control device to judge a condition of an engine operation to be an idle operation or not at the time of starting the control operation for regenerating the diesel particulate filter and during the regeneration control operation, when the engine operation is judged to be an idle operation, an idle engine speed is controlled and raised to the predetermined engine speed. Since the system includes such structure, in an operation of the DPF regenerate control, an adequate exhaust gas flow rate can be kept even in an idle operation and a raise of the DPF temperature due to a reduction of the exhaust gas flow rate can be avoided so as to prevent a damage of the DPF from melting and a deterioration of the catalyst.

    摘要翻译: 排气净化系统包括用于净化柴油发动机的排气中的颗粒物质的DPF,包括再生控制装置,用于在开始控制操作时判断发动机操作为空转运转的状态 再生柴油机微粒过滤器,在再生控制动作期间,当发动机运转判断为怠速运转时,将怠速发动机转速控制升高到预定的发动机转速。由于系统包括这样的结构, DPF再生控制,即使在怠速运转中也能够保持足够的废气流量,并且可以避免由于废气流量的降低引起的DPF温度的升高,以防止DPF的熔化和 催化剂的劣化。

    Internal combustion engine exhaust gas purifying system
    45.
    发明授权
    Internal combustion engine exhaust gas purifying system 有权
    内燃机排气净化系统

    公开(公告)号:US07210285B2

    公开(公告)日:2007-05-01

    申请号:US10658259

    申请日:2003-09-10

    IPC分类号: F01N3/00

    摘要: An internal combustion engine exhaust gas purifying system (10) having a continuous regenerating diesel particulate filter system (3) on the exhaust passage (2) of an internal combustion engine (1) is constituted by including collected-quantity estimation means (5A) for estimating the quantity of collected particulate matter in a filter (3b) of the filter system for collecting the particulate matter and maximum-fuel-injection-quantity restricting means (5C) for restricting the maximum fuel injection quantity of the internal combustion engine (1) when the quantity of collected particulate matter estimated by the collected-quantity estimation means (51A) is equal to or more than a predetermined judgment value.Thereby, when the quantity of deposited particulate matter exceeds a predetermined value in the continuous regenerating DPF system (3), it is possible to prevent the continuous regenerating DPF system (1) from deteriorating by restricting the maximum fuel injection quantity of the internal combustion engine (1) and avoiding a great increase of an exhaust gas quantity.

    摘要翻译: 在内燃机(1)的排气通路(2)上具有连续再生柴油机微粒过滤器系统(3)的内燃机排气净化系统(10)由包含收集量估算单元(5A) 用于估计用于收集颗粒物的过滤器(3b)的过滤器(3b)中收集的颗粒物质的量和用于限制内燃机的最大燃料喷射量的最大燃料喷射量限制装置(5C) (51)由所述收集量推定单元(51A)估计出的所收集的颗粒物的量等于或大于预定判定值。 因此,当连续再生DPF系统(3)中沉积颗粒物质的量超过预定值时,可以通过限制内燃机的最大燃料喷射量来防止连续再生DPF系统(1)劣化 (1)并且避免废气量的大幅增加。

    Diesel particulate filter unit and regeneration control method of the same
    47.
    发明授权
    Diesel particulate filter unit and regeneration control method of the same 有权
    柴油机微粒过滤装置和再生控制方法相同

    公开(公告)号:US06622480B2

    公开(公告)日:2003-09-23

    申请号:US10075391

    申请日:2002-02-15

    IPC分类号: F01N300

    摘要: A diesel particulate filer unit 1 comprising a filter 4 for capturing particulates in the exhaust gas G of an engine E, and a regeneration control means 50 judging the start of the regeneration operation of said filter 4, according to the comparison between the value measured by exhaust pressure sensors 51, 52 and a predetermined exhaust pressure judgment value &Dgr;Pes, Pes, Res wherein said regeneration control means 50 is configured to estimate the ash accumulated quantity SAsh of ash leaked into the exhaust gas G and accumulated in said filer 4, and correct said exhaust pressure judgment value &Dgr;Pes, Pes, Res for judging the regeneration operation start based on this. Thereby, a diesel particulate filter that can judge the regeneration start timing appropriately, taking accumulation and deposit of ash generated from lubricant oil on the filter into consideration, and remove particulates efficiently all the way preventing the filter from clogging is provided.

    摘要翻译: 一种柴油微粒过滤器单元1,其包括用于捕获发动机E的排气G中的微粒的过滤器4,以及根据由所述过滤器4测量的值与所述过滤器4的测量值的比较来判断所述过滤器4的再生操作的开始的再生控制装置50 排气压力传感器51,52和预定的排气压力判定值DeltaPes,Pes,Res,其中所述再生控制装置50被构造为估计泄漏到废气G中并累积在所述滤波器4中的灰的灰分累积量SAsh,并且校正 所述排气压力判定值DeltaPes,Pes,Res用于基于此判断再生运转开始。 因此,能够适当地判断再生开始时刻的柴油微粒过滤器,考虑到将过滤器上的润滑油产生的灰分积聚和析出,有效地除去微粒,防止过滤器堵塞。

    Gas Treatment Device
    48.
    发明申请
    Gas Treatment Device 审中-公开
    气体处理装置

    公开(公告)号:US20070261556A1

    公开(公告)日:2007-11-15

    申请号:US11662876

    申请日:2005-09-21

    IPC分类号: B03C3/017

    摘要: A gas treatment device (1), comprising a charging agglomeration part (10) which charges and agglomerates components targeted for collection in gas by utilizing corona discharge, and a filter part (20) which collects the agglomerated components. The charging agglomeration part (10) is disposed on the upstream side, and the filter part (20) is disposed on the downstream side. By this configuration, using the agglomerating functions and precipitating functions of corona discharge and the precipitating functions of filters, ultra-fine particulates can be agglomerated and enlarged. Moreover, the present invention is a gas treatment device that has high performance and low pressure-loss and that is capable of being configured in a compact form factor such that it can also be used as an exhaust gas purification device mounted onboard an automobile.

    摘要翻译: 一种气体处理装置(1),其包括通过利用电晕放电而使用于收集气体的成分进行装填和附聚的装料团聚部(10),以及收集凝聚成分的过滤部(20)。 充电团聚部(10)设置在上游侧,过滤部(20)配置在下游侧。 通过这种结构,使用电晕放电的附聚功能和沉淀功能以及过滤器的沉淀功能,可以使超细微粒团聚和扩大。 此外,本发明是一种气体处理装置,其具有高性能和低压力损失,并且能够以紧凑的形状因子构造,使得其也可以用作安装在汽车上的排气净化装置。

    Exhaust gas purification method and exhaust gas purification system
    49.
    发明申请
    Exhaust gas purification method and exhaust gas purification system 审中-公开
    废气净化方法和废气净化系统

    公开(公告)号:US20090038300A1

    公开(公告)日:2009-02-12

    申请号:US11921409

    申请日:2006-05-30

    IPC分类号: F01N3/10

    摘要: In order to remove by burning captured PM by using microscopic luminescent discharge that repeats generation and extinction randomly in time and space on the surface of an insulating filter with a minimum power consumption and to enhance the capturing efficiency and combustion-removal efficiency of PM in exhaust gas from diesel engines or the like, at least one electrode pair (13) are arranged on or in the vicinity of the surface of an insulating capturing member (12) for capturing particulate matter (41) in exhaust gas, a predetermined voltage (Vs) is applied between the electrode pair (12) to generate a microscopic luminescent discharge (42) that repeats generation and extinction randomly in time and space on the surface of the insulating capturing member (12), and the microscopic luminescent discharge (42) generated by the application of this predetermined voltage (Vs) is used to remove by burning the particulate matter (41) captured on the insulating capturing member (12).

    摘要翻译: 为了通过使用在最小功耗下在绝缘过滤器的表面上随时随机地发生和消光的微观发光放电来焚烧捕获的PM,并且提高废气中PM的捕集效率和燃烧除去效率, 来自柴油发动机等的气体,至少一个电极对(13)布置在用于捕获废气中的颗粒物质(41)的绝缘捕获构件(12)的表面附近或其附近,预定电压(Vs )被施加在电极对(12)之间以产生在绝缘捕获构件(12)的表面上随时间地重复产生和消光的微观发光放电(42),并且产生微观发光放电(42) 通过施加该预定电压(Vs)来通过燃烧捕获在绝缘捕获构件(12)上的颗粒物质(41)来去除。

    Exhaust gas cleaning system
    50.
    发明授权
    Exhaust gas cleaning system 有权
    废气净化系统

    公开(公告)号:US07337608B2

    公开(公告)日:2008-03-04

    申请号:US10551442

    申请日:2004-05-27

    IPC分类号: F01N3/00

    摘要: An exhaust gas purifying system causes less torque fluctuation and is capable of preventing the occurrence of white smoke in a regeneration control operation for regenerating a continuous regeneration DPF 3. When the continuous regeneration DPF 3 with an oxidation catalyst 3Aa on the upstream side of a filter 3Ab is controlled to regenerate, an exhaust throttle valve 31 provided in an exhaust passage 2 is closed and a delay multi-step injection control is performed to increase the temperature of the exhaust gas if an exhaust temperature T1 at the inlet of the oxidation catalyst 3Aa is less than the activation temperature Ta of the oxidation catalyst. After the exhaust temperature T1 at the inlet of the oxidation catalyst 3Aa has risen to the activation temperature Ta of the oxidation catalyst or higher, the exhaust throttle valve 31 is opened in a stepwise or continuous manner so that the exhaust temperature T2 at the inlet of the filter 3Ab rises to a lower limit temperature of PM forced combustion Tb1 or higher.

    摘要翻译: 废气净化系统引起较少的扭矩波动,并且能够防止在用于再生连续再生DPF 3的再生控制操作中发生白烟。 当将过滤器3 Ab的上游侧的氧化催化剂3Aa的连续再生DPF 3控制为再生时,设置在排气通路2内的排气节流阀31关闭,并进行延迟多步骤喷射控制, 如果氧化催化剂3Aa的入口处的排气温度T 1小于氧化催化剂的活化温度Ta,则增加废气的温度。 在氧化催化剂3Aa的入口处的排气温度T 1升高到氧化催化剂的活化温度Ta以上时,排气节流阀31以逐步或连续的方式打开,使排气温度T 2在 过滤器3 Ab的入口上升到PM强制燃烧Tb 1以下的下限温度。