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    Internal combustion engine exhaust gas purifying system
    1.
    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

    申请人： Hitoshi Sato ,  Naofumi Ochi ,  Masashi Gabe ,  Takehito Imai ,  Takashi Urata

    发明人： Hitoshi Sato ,  Naofumi Ochi ,  Masashi Gabe ,  Takehito Imai ,  Takashi Urata

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0231 ,  F01N3/035 ,  F01N9/002 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2250/02 ,  F01N2560/06 ,  F01N2560/08 ,  F02B29/0425 ,  F02B37/00 ,  F02D41/029 ,  F02D41/40 ,  F02D2200/0812 ,  Y02T10/44 ,  Y02T10/47

    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。

    Exhaust gas purification system and method for controlling regeneration thereof
    6.
    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

    申请人： Masashi Gabe ,  Takehito Imai ,  Naofumi Ochi

    发明人： Masashi Gabe ,  Takehito Imai ,  Naofumi Ochi

    IPC分类号： F01N300

    CPC分类号： F01N3/035 ,  F01N3/0222 ,  F01N3/0231 ,  F01N9/002 ,  F01N2390/02 ,  F01N2430/00 ,  F01N2510/06 ,  F02D41/029 ,  F02D41/1438 ,  Y02T10/47

    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。

    Diesel particulate filter unit and regeneration control method of the same
    7.
    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

    申请人： Yoshihisa Tashiro ,  Takehito Imai ,  Tsuneo Suzuki ,  Naofumi Ochi ,  Masashi Gabe

    发明人： Yoshihisa Tashiro ,  Takehito Imai ,  Tsuneo Suzuki ,  Naofumi Ochi ,  Masashi Gabe

    IPC分类号： F01N300

    CPC分类号： F02D41/1448 ,  B01D53/944 ,  B01D53/9495 ,  F01N3/023 ,  F01N3/035 ,  F01N3/103 ,  F01N9/002 ,  F01N13/0097 ,  F01N2330/06 ,  F01N2330/08 ,  F01N2430/08 ,  F01N2430/085 ,  F02D41/029 ,  F02D41/1441 ,  F02D41/405 ,  F02D2200/0812 ,  Y02T10/44 ,  Y02T10/47

    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。