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    Exhaust gas purifying system of internal combustion engine
    4.
    发明授权
    Exhaust gas purifying system of internal combustion engine 失效
    内燃机排气净化系统

    公开(公告)号：US07153342B2

    公开(公告)日：2006-12-26

    申请号：US10752519

    申请日：2004-01-08

    申请人： Toshimasa Koga ,  Junichi Kawashima ,  Naoya Tsutsumoto ,  Terunori Kondou ,  Makoto Otake ,  Takao Inoue

    发明人： Toshimasa Koga ,  Junichi Kawashima ,  Naoya Tsutsumoto ,  Terunori Kondou ,  Makoto Otake ,  Takao Inoue

    IPC分类号： B01D46/00

    CPC分类号： F02D41/1448 ,  F01N3/022 ,  F01N3/0222 ,  F01N3/023 ,  F01N9/002 ,  F01N2260/04 ,  F01N2330/06 ,  F01N2430/00 ,  F01N2550/04 ,  F01N2560/08 ,  F02B37/00 ,  F02D41/0007 ,  F02D41/029 ,  F02D2200/0812 ,  Y02T10/144 ,  Y02T10/47 ,  Y10S55/10 ,  Y10S55/30

    摘要： An exhaust gas purifying system of a diesel engine comprises a PM filter installed in an exhaust passage line of the engine to collect particulate matter (PM) in the exhaust gas from the engine; a pressure difference sensor for detecting a pressure difference between upstream and downstream portions of the PM filter; a control unit which comprises a collected PM amount estimating section that estimates an amount of collected PM in the PM filter based on the pressure difference; and a reactivation timing judging section that, based on the estimated amount of the collected PM, judges a reactivation time when the reactivation of the PM filter is needed; and a reactivation carrying out system that, upon judgment of the reactivation time, carries out a predetermined operation to increases the temperature of the PM filter thereby to burn the collected PM. The control unit further comprises a dispersion condition judging section that judges a dispersion condition of the collected PM in the PM filter; and a correction section that corrects the estimated amount of the collected PM in accordance with the judged dispersion condition of the collected PM.

    摘要翻译： 柴油发动机的废气净化系统包括安装在发动机的排气通道管线中的PM过滤器，以收集来自发动机的废气中的颗粒物质（PM）; 用于检测PM过滤器的上游部分和下游部分之间的压力差的压力差传感器; 控制单元，其包括：收集的PM量估计部，其基于所述压差来估计所述PM滤波器中的所收集的PM的量; 以及再生时间判定部，其基于所估计的所收集的PM，判断需要PM滤波器的再激活时的再激活时间; 以及重新启动执行系统，其在重新启动时间的判断之后，执行预定的操作以增加PM过滤器的温度，从而燃烧所收集的PM。 所述控制单元还包括色散条件判断部，判断所述PM滤波器中所收集的PM的色散条件; 以及校正部，其根据所收集的PM的判定色散条件来校正所收集的PM的估计量。

    Regeneration control of diesel particulate filter
    5.
    发明授权
    Regeneration control of diesel particulate filter 有权
    柴油颗粒过滤器再生控制

    公开(公告)号：US07134275B2

    公开(公告)日：2006-11-14

    申请号：US11003349

    申请日：2004-12-06

    申请人： Naoya Tsutsumoto ,  Junichi Kawashima ,  Makoto Otake ,  Terunori Kondou ,  Takao Inoue ,  Shouichirou Ueno ,  Toshimasa Koga

    发明人： Naoya Tsutsumoto ,  Junichi Kawashima ,  Makoto Otake ,  Terunori Kondou ,  Takao Inoue ,  Shouichirou Ueno ,  Toshimasa Koga

    IPC分类号： F01N3/00

    CPC分类号： F02D41/025 ,  F02D41/029 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/26

    摘要： A diesel particulate filter (41) traps particulate matter contained in the exhaust gas of a diesel engine (1) for a vehicle. The filter (41) is regenerated by raising the exhaust gas temperature so that the trapped particulate matter burns. A controller (31) calculates a particulate matter combustion amount PMr during regeneration, and in accordance with increases in the combustion amount PMr, raises the oxygen concentration of the exhaust gas by operating an intake throttle (42) and/or a variable nozzle (24) of a turbocharger (21). As a result, the filter (41) is held at an optimum temperature for regeneration regardless of the residual particulate matter amount, and hence the time required for regeneration can be shortened without damaging the heat resistance performance of the filter (41).

    摘要翻译： 柴油微粒过滤器（41）捕集包含在用于车辆的柴油发动机（1）的废气中的颗粒物质。 过滤器（41）通过提高废气温度再生，使得捕获的颗粒物质燃烧。 控制器（31）计算再生时的颗粒物燃烧量PMr，并根据燃烧量PMr的增加，通过操作进气节流阀（42）和/或可变喷嘴（24）来提高排气的氧浓度 ）的涡轮增压器（21）。 结果，过滤器（41）被保持在用于再生的最佳温度，而与残留颗粒物质量无关，因此可以缩短再生所需的时间，而不损害过滤器（41）的耐热性能。

    Regeneration of particulate filter
    6.
    发明授权
    Regeneration of particulate filter 有权
    颗粒过滤器的再生

    公开(公告)号：US07062906B2

    公开(公告)日：2006-06-20

    申请号：US10790119

    申请日：2004-03-02

    申请人： Makoto Otake ,  Junichi Kawashima ,  Takao Inoue ,  Terunori Kondou ,  Toshimasa Koga ,  Naoya Tsutsumoto

    发明人： Makoto Otake ,  Junichi Kawashima ,  Takao Inoue ,  Terunori Kondou ,  Toshimasa Koga ,  Naoya Tsutsumoto

    IPC分类号： F01N3/00

    CPC分类号： F01N3/023 ,  F01N3/021 ,  F01N9/002 ,  F01N2430/06 ,  F01N2430/085 ,  F02B3/06 ,  F02B29/0406 ,  F02B37/00 ,  F02B2275/14 ,  F02D41/0002 ,  F02D41/0245 ,  F02D41/029 ,  F02D41/08 ,  F02D41/401 ,  F02D41/405 ,  F02D2041/026 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/23 ,  F02M26/46 ,  Y02T10/123 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/47

    摘要： A regeneration device for a filter (13) which traps particulate matter in an exhaust gas of an engine (1) is disclosed. The regeneration device has a sensor (25) which detects an engine running point containing an engine load and a controller (22) storing a map which defines a low load region (A) relating to engine running points. The controller (22) determines whether or not the detected engine running point is in the low load region referring to the map, when the deposition amount of particulate matter is more than a first reference amount (PMn). Further, the controller (22) immediately start a first filter regeneration control by raising a temperature of the exhaust gas, when the detected engine running point is not in the low load region, and start a second filter regeneration control by raising the temperature of the exhaust gas after the deposition amount of particulate matter exceeds a second reference amount (PMe), when the detected engine running point is in the low load region.

    摘要翻译： 公开了一种用于捕集发动机（1）的排气中的颗粒物质的过滤器（13）的再生装置。 再生装置具有检测包含发动机负荷的发动机运转点的传感器（25）和存储有与发动机运转点有关的低负荷区域（A）的映射的控制器（22）。 当颗粒物的沉积量大于第一参考量（PMn）时，控制器（22）参考地图确定检测到的发动机运转点是否在低负载区域。 此外，当检测到的发动机运转点不在低负荷区域时，控制器（22）通过提高废气的温度来立即开始第一过滤器再生控制，并且通过提高第二过滤器再生控制的温度来开始第二过滤器再生控制 当检测到的发动机运转点处于低负载区域时，颗粒物的沉积量之后的废气超过第二基准量（PMe）。