-
公开(公告)号：US07574857B2
公开(公告)日：2009-08-18
申请号：US11483609
申请日：2006-07-11
IPC分类号： F01N3/025
CPC分类号： F01N11/002 , F01N3/023 , F01N9/002 , F01N9/005 , F01N9/007 , F02B29/0406 , F02B37/00 , F02D41/0055 , F02D41/0245 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02M26/25 , Y02T10/47
摘要： In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter regenerator regenerates the particulate filter by burning the particulate matters accumulated in the particulate filter. A filter front clogging detector determines whether a front end portion of the particulate filter is clogged by the particulate matters. A filter regeneration controller that controls the filter regenerator to perform a front regeneration to remove the particulate matters accumulated in the front end portion of the particulate filter when the filter front clogging detector determines that the front end portion of the particulate filter is clogged.
摘要翻译： 在车辆内燃机的废气排放控制系统中，微粒过滤器收集内燃机的废气中的颗粒物质。 过滤再生器通过燃烧颗粒过滤器中积聚的颗粒物质来再生颗粒过滤器。 过滤器前堵塞检测器确定颗粒过滤器的前端部分是否被颗粒物质堵塞。 过滤器再生控制器，当过滤器前堵塞检测器确定微粒过滤器的前端部分堵塞时，控制过滤器再生器执行前部再生以除去积聚在微粒过滤器的前端部分中的颗粒物质。
-
公开(公告)号：US07458206B2
公开(公告)日：2008-12-02
申请号：US11032166
申请日：2005-01-11
申请人： Shigeto Yahata , Makoto Saito , Kazuharu Tochikawa
发明人： Shigeto Yahata , Makoto Saito , Kazuharu Tochikawa
CPC分类号： F01N9/002 , F01N11/002 , F01N2560/06 , F01N2900/0421 , F02B29/0406 , F02B37/00 , F02D41/1448 , F02D2200/0802 , F02D2200/0804 , F02D2200/0812 , F02M26/05 , F02M26/23 , Y02T10/47
摘要： An exhaust gas purification system determines a deposited state of particulate matters based on a differential pressure across a diesel particulate filter (DPF) sensed by a differential pressure sensor. An electronic control unit (ECU) of the system prohibits the determination of the deposited state of the particulate matters, which is performed based on the differential pressure, when uniformity of temperature distribution inside the DPF is low. The ECU estimates temperatures at multiple points inside the DPF distant from an inlet along a direction of a flow of exhaust gas based on the temperature at the inlet sensed by an exhaust gas temperature sensor disposed immediately upstream of the DPF. The ECU determines the uniformity of the temperature distribution inside the DPF based on a range of the temperatures at the multiple points.
摘要翻译： 废气净化系统基于差压传感器感测到的柴油机微粒过滤器（DPF）上的差压来确定颗粒物质的沉积状态。 当DPF内部的温度分布均匀性低时，系统的电子控制单元（ECU）禁止基于差压进行的颗粒物质的沉积状态的确定。 ECU基于由紧邻DPF的上游设置的排气温度传感器感测的入口处的温度，估计沿着排气流动方向远离入口的DPF内的多个点处的温度。 ECU基于多个点处的温度范围来确定DPF内的温度分布的均匀性。
-
公开(公告)号：US20050198944A1
公开(公告)日：2005-09-15
申请号：US11070368
申请日：2005-03-03
CPC分类号： F01N9/002 , F01N3/023 , F01N11/002 , F01N11/005 , F01N13/008 , Y02T10/47
摘要： An electronic control unit (ECU) of an internal combustion engine calculates a present deposition quantity of exhaust particulate matters based on operating states of the engine such as a differential pressure of a diesel particulate filter (DPF). If the present deposition quantity exceeds a predetermined upper limit value, the ECU performs compulsory regeneration of the DPF to compulsorily combust and reduce the deposited exhaust particulate matters. The ECU determines that spontaneous regeneration occurs if a temperature of exhaust gas in the DPF is equal to or higher than a reference temperature. Thereafter, the ECU completes the compulsory regeneration to eliminate the deposited exhaust particulate matters if the ECU determines that the spontaneous regeneration stops and the deposition quantity becomes equal to or less than a predetermined lower limit value.
摘要翻译： 内燃机的电子控制单元（ECU）基于柴油机微粒过滤器（DPF）的压差等发动机的运转状态来计算排气微粒物质的现有沉积量。 如果当前的沉积量超过预定的上限值，则ECU执行DPF的强制再生以强制燃烧并减少沉积的废气颗粒物质。 如果DPF中的废气温度等于或高于参考温度，则ECU确定发生自发再生。 此后，如果ECU确定自发再生停止并且沉积量等于或小于预定下限值，则ECU完成强制再生以消除沉积的排气颗粒物质。
-
公开(公告)号：US07322186B2
公开(公告)日：2008-01-29
申请号：US11220596
申请日：2005-09-08
CPC分类号： F02D41/029 , F01N3/023 , F01N3/035 , F01N9/002 , F01N11/002 , F02D41/1441 , F02D41/1448 , Y02T10/47
摘要： In an exhaust gas purifying apparatus for a diesel engine having a diesel particulate filter provided in an exhaust pipe, a pressure loss at the filter is detected. An accumulated amount of diesel particulates in the filter is calculated based on the pressure loss and a map for a relationship between the pressure loss and the accumulated amount. A compulsory re-generating operation is carried out when the calculated accumulated amount reaches at a predetermined threshold value, which is decreased to a smaller value depending on a combustion amount of the diesel particulates which are combusted and removed from the filter as a natural re-generating operation.
摘要翻译： 在具有设置在排气管中的柴油机微粒过滤器的柴油机废气净化装置中，检测过滤器处的压力损失。 基于压力损失和压力损失与累积量之间的关系的映射图来计算过滤器中的柴油微粒的累积量。 当计算出的累计量达到预定阈值时，根据从过滤器燃烧和除去的柴油微粒的燃烧量减少到较小值，进行强制再生作业， 生成操作。
-
公开(公告)号：US20070012034A1
公开(公告)日：2007-01-18
申请号：US11483609
申请日：2006-07-11
CPC分类号： F01N11/002 , F01N3/023 , F01N9/002 , F01N9/005 , F01N9/007 , F02B29/0406 , F02B37/00 , F02D41/0055 , F02D41/0245 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02M26/25 , Y02T10/47
摘要： In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter regenerator regenerates the particulate filter by burning the particulate matters accumulated in the particulate filter. A filter front clogging detector determines whether a front end portion of the particulate filter is clogged by the particulate matters. A filter regeneration controller that controls the filter regenerator to perform a front regeneration to remove the particulate matters accumulated in the front end portion of the particulate filter when the filter front clogging detector determines that the front end portion of the particulate filter is clogged.
摘要翻译： 在车辆内燃机的废气排放控制系统中，微粒过滤器收集内燃机的废气中的颗粒物质。 过滤再生器通过燃烧颗粒过滤器中积聚的颗粒物质来再生颗粒过滤器。 过滤器前堵塞检测器确定颗粒过滤器的前端部分是否被颗粒物质堵塞。 过滤器再生控制器，当过滤器前堵塞检测器确定微粒过滤器的前端部分堵塞时，控制过滤器再生器执行前部再生以除去积聚在微粒过滤器的前端部分中的颗粒物质。
-
公开(公告)号：US07162867B2
公开(公告)日：2007-01-16
申请号：US11228292
申请日：2005-09-19
IPC分类号： F01N3/00
CPC分类号： F01N3/023 , F01N9/002 , F01N2430/00 , Y02T10/47
摘要： An exhaust gas purifying device for an engine includes a particulate filter midway in an exhaust passage for collecting particulate matters. A control means calculates an accumulating amount of particulate matters on the particulate filter. An accumulating amount calculating means calculates the accumulating amount in accordance with an accumulating characteristic and differential pressure of the particulate filter detected using a differential pressure detecting means. When the accumulating amount becomes a predetermined regeneration demand amount, the control means performs a forcible regeneration, in which particulate matters on the particulate filter are burned and removed to regenerate the particulate filter.
摘要翻译： 用于发动机的排气净化装置包括在用于收集颗粒物质的排气通道中途的微粒过滤器。 控制装置计算微粒过滤器上的颗粒物的累积量。 累积量计算装置根据使用差压检测装置检测的微粒过滤器的累积特性和压差来计算累积量。 当累积量成为预定的再生需求量时，控制装置进行强制再生，其中颗粒过滤器上的颗粒物被燃烧并除去以再生微粒过滤器。
-
17.发明授权公开(公告)号：US07159390B2
公开(公告)日：2007-01-09
申请号：US10867209
申请日：2004-06-15
IPC分类号： F01N3/00
CPC分类号： F01N3/035 , B01D46/2429 , B01D46/244 , B01D46/2444 , B01D46/2455 , B01D46/2459 , B01D46/2466 , B01D46/2474 , B01D2046/2433 , B01D2046/2496 , F01N3/0222 , F01N3/023 , F01N2240/10 , F01N2260/10 , F01N2330/32 , F01N2510/06
摘要： To prevent the deterioration of catalyst or the damage of a particulate filter caused by the rapid temperature rise of the particulate filter when the abrupt deceleration of an engine occurs, and avoid the deterioration of fuel consumption by depositing a large PM in the particulate filter and regenerating the same at once.A heat-absorbing area 4 is provided by forming a deeply clogged structure at the exhaust gas flowing-out side end of the particular filter 1 disposed in an exhaust pipe 2 of an internal combustion engine E. As the heat-absorbing area has a heat capacity larger than that in the other portions, the combustion heat is absorbed and dispersed even if the rapid chain reaction of PM combustion occurs, whereby it is possible to suppress the temperature rise of the downstream portion of the particulate filter liable to be high in temperature.
摘要翻译： 为了防止发动机发生急剧减速时由于微粒过滤器的快速升温引起的催化剂劣化或微粒过滤器的损坏，并且通过在颗粒过滤器中沉积大的PM并避免再生而避免燃料消耗的恶化 立即一样。 通过在设置在内燃机E的排气管2中的特定过滤器1的废气流出侧端处形成深度堵塞的结构来提供吸热区域4.当吸热区域具有热量 容量大于其他部分的容量，即使发生PM燃烧的快速链接反应，燃烧热也被吸收和分散，从而可以抑制微粒过滤器的下游部分的温度升高容易变高 。
-
18.发明申请公开(公告)号：US20050011186A1
公开(公告)日：2005-01-20
申请号：US10867209
申请日：2004-06-15
CPC分类号： F01N3/035 , B01D46/2429 , B01D46/244 , B01D46/2444 , B01D46/2455 , B01D46/2459 , B01D46/2466 , B01D46/2474 , B01D2046/2433 , B01D2046/2496 , F01N3/0222 , F01N3/023 , F01N2240/10 , F01N2260/10 , F01N2330/32 , F01N2510/06
摘要： To prevent the deterioration of catalyst or the damage of a particulate filter caused by the rapid temperature rise of the particulate filter when the abrupt deceleration of an engine occurs, and avoid the deterioration of fuel consumption by depositing a large PM in the particulate filter and regenerating the same at once. A heat-absorbing area 4 is provided by forming a deeply clogged structure at the exhaust gas flowing-out side end of the particular filter 1 disposed in an exhaust pipe 2 of an internal combustion engine E. As the heat-absorbing area has a heat capacity larger than that in the other portions, the combustion heat is absorbed and dispersed even if the rapid chain reaction of PM combustion occurs, whereby it is possible to suppress the temperature rise of the downstream portion of the particulate filter liable to be high in temperature.
摘要翻译： 为了防止发动机发生急剧减速时的微粒过滤器的快速升温引起的催化剂劣化或微粒过滤器的损坏，并且通过在颗粒过滤器中沉积大的PM并避免再生，避免燃料消耗的恶化 立即一样。 通过在设置在内燃机E的排气管2中的特定过滤器1的废气流出侧端处形成深度堵塞的结构来提供吸热区域4.当吸热区域具有热量 容量大于其他部分的容量，即使发生PM燃烧的快速链接反应，燃烧热也被吸收和分散，从而可以抑制微粒过滤器的下游部分的温度升高容易变高 。
-
19.发明申请公开(公告)号：US20080110238A1
公开(公告)日：2008-05-15
申请号：US11937323
申请日：2007-11-08
IPC分类号： F01N11/00
CPC分类号： F01N11/002 , F01N11/005 , F01N2900/0422 , Y02T10/47
摘要： A diagnostic apparatus monitors a pressure difference detection apparatus that detects the pressure difference across an engine exhaust gas cleansing device in an exhaust gas system, with the diagnostic apparatus recognizing a condition of impeded transfer of gas between the pressure difference detection apparatus and the exhaust gas system, based upon a manner of convergence of successive detected pressure difference values that are produced by the pressure difference detection apparatus following a change in the exhaust gas flow rate.
摘要翻译： 诊断装置监视检测排气系统中的发动机废气净化装置的压力差的压力差检测装置，诊断装置识别压力差检测装置与废气系统之间的气体阻碍状态 基于随着废气流量变化而由压力差检测装置产生的连续检测的压力差值的收敛方式。
-
公开(公告)号：US07051519B2
公开(公告)日：2006-05-30
申请号：US11183961
申请日：2005-07-19
IPC分类号： F01N3/00
CPC分类号： F02D41/029 , F01N3/0231 , F01N9/002 , F02D2200/0812 , Y02T10/47
摘要： The amount of accumulated particulate matter, which is accumulated in a particulate filter, is computed based on the amount of exhausted particulate matter, which is exhausted from an engine, and the amount of reduced particulate matter, which is reduced in the filter. The amount of reduced particulate matter includes the amount of reduced particulate matter, which is reduced through oxidizing reaction of the accumulated particulate matter with NO2. At the time of computing this amount, reduction of the particulate matter through oxidizing reaction with adsorbed NO2, which is adsorbed by the accumulated particulate matter, is concerned in addition to reduction of the particulate matter through oxidizing reaction with NO2, which is present in the surrounding atmosphere around the accumulated particulate matter.
-
-
-
-
-
-
-
-
-
搜索结果
56 条记录 (耗时 0.02 秒)
