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公开(公告)号：US08136348B2
公开(公告)日：2012-03-20
申请号：US12251135
申请日：2008-10-14
申请人： Satoshi Hiranuma , Minehiro Murata , Yoshinaka Takeda , Hiroaki Fujita , Satoshi Yamazaki , Shinichi Saito , Yasuko Suzuki
发明人： Satoshi Hiranuma , Minehiro Murata , Yoshinaka Takeda , Hiroaki Fujita , Satoshi Yamazaki , Shinichi Saito , Yasuko Suzuki
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N3/0231 , F01N3/035 , F01N9/00 , F01N13/0097 , F02B37/00 , Y02T10/24 , Y02T10/47
摘要： An exhaust purification apparatus comprises an ammonia selective reduction-type NOx catalyst that selectively reduces NOx within exhaust gas by using ammonia as a reducing agent, a urea-water supply device that supplies urea-water into the exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst, and a control unit. The control unit controls the urea-water supply device so that the urea-water is intermittently supplied according to predetermined supply duration time and predetermined supply suspension time when the urea-water is supplied from the urea-water supply device for the purpose of providing ammonia to the ammonia selective reduction-type NOx catalyst.
摘要翻译： 排气净化装置包括通过使用氨作为还原剂选择性地还原废气中的NOx的氨选择还原型NOx催化剂，将尿素水供给到存在于氨选择还原剂上游的排气中的尿素水供给装置 型NOx催化剂和控制单元。 控制单元控制尿素水供应装置，以便当从尿素水供应装置供应尿素水以提供氨时，根据预定的供应持续时间和预定的供应停止时间间歇地供应尿素水 涉及氨选择还原型NOx催化剂。
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公开(公告)号：US08196394B2
公开(公告)日：2012-06-12
申请号：US12246706
申请日：2008-10-07
申请人： Hiroaki Fujita , Satoshi Hiranuma , Minehiro Murata , Satoshi Yamazaki , Goro Iljima , Yoshinaka Takeda
发明人： Hiroaki Fujita , Satoshi Hiranuma , Minehiro Murata , Satoshi Yamazaki , Goro Iljima , Yoshinaka Takeda
CPC分类号： F01N3/035 , F01N3/2066 , F01N13/008 , F01N2240/36 , F01N2610/02 , F01N2610/1453 , Y02T10/24
摘要： An exhaust purification apparatus for an engine comprises an upstream casing that has a cylindrical shape and accommodates a particulate filter; an exhaust gas outlet that is formed in a side wall of the upstream casing and discharges the exhaust gas that has passed through the particulate filter; a urea-water injector that is fixed to the upstream casing located in a position opposite to the exhaust gas outlet and injects urea-water toward the exhaust gas outlet; and a downstream casing that accommodates an ammonia selective reduction-type NOx catalyst into which the exhaust gas discharged from the exhaust gas outlet flows.
摘要翻译： 用于发动机的排气净化装置包括具有圆筒形并容纳微粒过滤器的上游壳体; 排气出口，其形成在所述上游壳体的侧壁中并排出已经通过所述微粒过滤器的废气; 尿素水喷射器，固定在位于与废气出口相对的位置的上游壳体上，并向排气出口注入尿素水; 以及容纳从排气出口排出的废气流入的氨选择还原型NOx催化剂的下游壳体。
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公开(公告)号：US20090094964A1
公开(公告)日：2009-04-16
申请号：US12246706
申请日：2008-10-07
申请人： Hiroaki Fujita , Satoshi Hiranuma , Minehiro Murata , Satoshi Yamazaki , Goro Iijima , Yoshinaka Takeda
发明人： Hiroaki Fujita , Satoshi Hiranuma , Minehiro Murata , Satoshi Yamazaki , Goro Iijima , Yoshinaka Takeda
IPC分类号： F01N3/035
CPC分类号： F01N3/035 , F01N3/2066 , F01N13/008 , F01N2240/36 , F01N2610/02 , F01N2610/1453 , Y02T10/24
摘要： An exhaust purification apparatus for an engine comprises an upstream casing that has a cylindrical shape and accommodates a particulate filter; an exhaust gas outlet that is formed in a side wall of the upstream casing and discharges the exhaust gas that has passed through the particulate filter; a urea-water injector that is fixed to the upstream casing located in a position opposite to the exhaust gas outlet and injects urea-water toward the exhaust gas outlet; and a downstream casing that accommodates an ammonia selective reduction-type NOx catalyst into which the exhaust gas discharged from the exhaust gas outlet flows.
摘要翻译： 用于发动机的排气净化装置包括具有圆筒形并容纳微粒过滤器的上游壳体; 排气出口，其形成在所述上游壳体的侧壁中并排出已经通过所述微粒过滤器的废气; 尿素水喷射器，固定在位于与废气出口相对的位置的上游壳体上，并向排气出口注入尿素水; 以及容纳从排气出口排出的废气流入的氨选择还原型NOx催化剂的下游壳体。
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公开(公告)号：US08356472B2
公开(公告)日：2013-01-22
申请号：US12741387
申请日：2008-10-29
IPC分类号： F01N3/00
CPC分类号： B60W20/15 , B01D53/9418 , B01D53/9459 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2258/012 , B60K1/02 , B60K6/46 , B60L11/123 , B60L11/1861 , B60L2240/441 , B60L2240/445 , B60W10/06 , B60W10/08 , B60W20/00 , B60W2510/0604 , B60W2510/0638 , B60W2510/0676 , B60W2510/068 , B60W2510/0685 , B60W2510/244 , B60W2520/10 , B60W2540/10 , B60W2710/0644 , F01N3/035 , F01N3/106 , F01N3/208 , F01N13/009 , F01N13/0097 , F01N2560/06 , F01N2590/11 , F01N2610/02 , F01N2900/1622 , F02D29/02 , F02D41/0235 , F02D41/042 , F02D2041/1469 , F02N11/0818 , F02N11/0829 , F02N2200/061 , Y02A50/2325 , Y02T10/24 , Y02T10/48 , Y02T10/54 , Y02T10/6217 , Y02T10/6286 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7077
摘要： An ammonia selective reduction-type NOx catalyst (48) is interposed in an exhaust passage of an engine (2) provided in a series-type hybrid electric vehicle (1), and a urea water injector (52) is disposed in the exhaust passage to supply a urea water into exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst (48). The engine (2) is started and stopped in accordance with the storage state of a battery (8), and the urea water injector (52) is controlled in accordance with the operating state of the engine (2). When the engine (2) is to be stopped, an adsorption increasing operation for increasing the amount of ammonia adsorbed by the ammonia selective reduction-type NOx catalyst (48) is executed over a predetermined period before the engine (2) is stopped.
摘要翻译： 氨选择还原型NOx催化剂（48）插入到设置在串联型混合动力电动车辆（1）中的发动机（2）的排气通道中，并且尿素水喷射器（52）设置在排气通道 将尿素水供给到氨选择还原型NOx催化剂（48）的上游的废气中。 发动机（2）根据电池（8）的存储状态启动停止，并且根据发动机（2）的运行状态来控制尿素水喷射器（52）。 当发动机（2）停止时，在发动机（2）停止之前的预定时间段内执行用于增加氨选择还原型NOx催化剂（48）吸附的氨的吸附量的操作。
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公开(公告)号：US20100268438A1
公开(公告)日：2010-10-21
申请号：US12741387
申请日：2008-10-29
CPC分类号： B60W20/15 , B01D53/9418 , B01D53/9459 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2258/012 , B60K1/02 , B60K6/46 , B60L11/123 , B60L11/1861 , B60L2240/441 , B60L2240/445 , B60W10/06 , B60W10/08 , B60W20/00 , B60W2510/0604 , B60W2510/0638 , B60W2510/0676 , B60W2510/068 , B60W2510/0685 , B60W2510/244 , B60W2520/10 , B60W2540/10 , B60W2710/0644 , F01N3/035 , F01N3/106 , F01N3/208 , F01N13/009 , F01N13/0097 , F01N2560/06 , F01N2590/11 , F01N2610/02 , F01N2900/1622 , F02D29/02 , F02D41/0235 , F02D41/042 , F02D2041/1469 , F02N11/0818 , F02N11/0829 , F02N2200/061 , Y02A50/2325 , Y02T10/24 , Y02T10/48 , Y02T10/54 , Y02T10/6217 , Y02T10/6286 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7077
摘要： An ammonia selective reduction-type NOx catalyst (48) is interposed in an exhaust passage of an engine (2) provided in a series-type hybrid electric vehicle (1), and a urea water injector (52) is disposed in the exhaust passage to supply a urea water into exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst (48). The engine (2) is started and stopped in accordance with the storage state of a battery (8), and the urea water injector (52) is controlled in accordance with the operating state of the engine (2). When the engine (2) is to be stopped, an adsorption increasing operation for increasing the amount of ammonia adsorbed by the ammonia selective reduction-type NOx catalyst (48) is executed over a predetermined period before the engine (2) is stopped.
摘要翻译： 氨选择还原型NOx催化剂（48）插入到设置在串联型混合动力电动车辆（1）中的发动机（2）的排气通道中，并且尿素水喷射器（52）设置在排气通道 将尿素水供给到氨选择还原型NOx催化剂（48）的上游的废气中。 发动机（2）根据电池（8）的储存状态启动停止，并且根据发动机（2）的运行状态来控制尿素水喷射器（52）。 当发动机（2）停止时，在发动机（2）停止之前的预定时间段内执行用于增加氨选择还原型NOx催化剂（48）吸附的氨的吸附量的操作。
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公开(公告)号：US20100251698A1
公开(公告)日：2010-10-07
申请号：US12742192
申请日：2008-11-05
CPC分类号： B60W20/15 , B01D53/9418 , B01D53/9459 , B01D53/9477 , B01D2251/2067 , B60K1/02 , B60K6/46 , B60L2240/441 , B60L2240/445 , B60W10/06 , B60W10/08 , B60W20/00 , B60W2510/0604 , B60W2510/0638 , B60W2510/0676 , B60W2510/068 , B60W2510/244 , B60W2520/10 , B60W2540/10 , B60W2710/0644 , F01N3/2066 , F01N9/00 , F01N13/0097 , F01N2610/02 , F02D29/02 , F02D29/06 , F02D41/0055 , F02D41/0235 , F02D2200/0802 , F02D2250/36 , F02M26/13 , F02N11/0814 , Y02A50/2325 , Y02T10/24 , Y02T10/54 , Y02T10/6217 , Y02T10/6286
摘要： An ammonia selective reduction-type NOx catalyst (48) is interposed in an exhaust passage of an engine (2) installed in a series-type hybrid electric vehicle (1), and a urea-water injector (62) for supplying urea water in the upstream side of the ammonia selective reduction-type NOx catalyst (48) is placed in the exhaust passage. The engine (2) started in response to a storage state of a battery (8) is operated in a first operation mode, and urea water supply is suspended, until exhaust temperature reaches predetermined temperature (Ta). Once the exhaust temperature reaches the predetermined temperature (Ta), the engine (2) is operated in a second operation mode, and urea water is supplied from the urea-water injector (62). While the engine (2) is operated in the first operation mode, NOx emissions from the engine (2) are more decreased than in the second operation mode.
摘要翻译： 氨选择还原型NOx催化剂（48）插入到安装在串联型混合动力电动车辆（1）中的发动机（2）的排气通道中，以及尿素水喷射器（62） 氨选择还原型NOx催化剂（48）的上游侧被放置在排气通道中。 响应于电池（8）的存储状态启动的发动机（2）以第一操作模式操作，并且中止尿素水供应，直到排气温度达到预定温度（Ta）。 一旦排气温度达到预定温度（Ta），发动机（2）在第二操作模式下操作，并且尿素水从尿素水喷射器（62）供应。 当发动机（2）在第一操作模式下操作时，来自发动机（2）的NOx排放比第二操作模式中的NOx排放更多。
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公开(公告)号：US20100218486A1
公开(公告)日：2010-09-02
申请号：US11997691
申请日：2005-08-01
CPC分类号： B01D53/9431 , B01D2251/208 , F01N3/0821 , F01N3/0885 , F01N3/2033 , F01N13/0097 , F01N2260/14 , F01N2410/12 , F02B29/0406 , F02B37/00 , F02D9/04 , F02M26/05 , F02M26/10 , F02M26/15 , Y02T10/26
摘要： An exhaust gas purification device includes a NOx adsorption catalyst (36) and HC supply means (48) for adding HC to the exhaust gas flowing to the NOx adsorption catalyst (36). The HC supply means (48) is controlled first to supply an amount of HC required to keep the temperature of the NOx adsorption catalyst (36) at a second temperature which is derived by subtracting a temperature rise caused by rich spike from a first temperature predetermined as a temperature necessary for S purge, thereby increasing the temperature of the NOx adsorption catalyst (36), and then to additionally perform the rich spike for the S purge while continuing the HC supply.
摘要翻译： 废气净化装置包括用于向流入NOx吸附催化剂（36）的废气中添加HC的NOx吸附催化剂（36）和HC供给装置（48）。 HC供应装置（48）首先被控制以提供将NOx吸附催化剂（36）的温度保持在第二温度所需的HC量，该第二温度是通过从预定的第一温度减去由浓尖引起的温度升高而导出的 作为S吹扫所需的温度，从而提高NOx吸附催化剂（36）的温度，然后在继续HC供给的同时附加地执行用于S吹扫的富峰。
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公开(公告)号：US20090025370A1
公开(公告)日：2009-01-29
申请号：US11816505
申请日：2006-02-24
IPC分类号： F01N9/00
CPC分类号： B01D53/94 , B01D53/90 , B01D53/9495 , F01N3/0235 , F01N3/0253 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/0885 , F01N3/2066 , F01N3/208 , F01N9/002 , F01N13/0097 , F01N2240/36 , F01N2260/14 , F01N2560/08 , F01N2570/04 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/14 , F02B29/0425 , F02B37/00 , F02M26/05 , Y02T10/24 , Y02T10/47
摘要： An auxiliary agent supply means (32, 58) is provided to supply, upstream of an exhaust gas purification means (24, 56, 78), an auxiliary agent for maintaining the exhaust gas purifying function of the exhaust gas purification means (24, 56, 78). A control means (38) for controlling the auxiliary agent supply means (32, 58), thereby regulating the amount of the auxiliary agent supplied includes a standard supply quantity determination section (40, 50, 68, 86) for determining standard supply quantity of the auxiliary agent required to maintain the exhaust gas purifying function, a target supply quantity determination section (42, 52, 70, 88) for determining target supply quantity of the auxiliary agent, by correcting the standard supply quantity on the basis of exhaust pressure, and a supply control section (44, 54, 72, 90) for controlling the auxiliary agent supply means to supply the auxiliary agent in the target supply quantity.
摘要翻译： 提供辅助剂供给装置（32,58）以在废气净化装置（24,56,78）的上游供应用于维持排气净化装置（24,56）的排气净化功能的辅助剂 ，78）。 用于控制辅助剂供给装置（32,58）的控制装置（38），从而调节所供应的辅助剂的量，包括用于确定供给量的标准供给量的标准供给量确定部（40,50,68,86） 需要维持排气净化功能的辅助剂，用于通过基于排气压力校正标准供给量来确定辅助剂的目标供给量的目标供给量确定部（42,52,70,88） 以及用于控制辅助剂供给装置以将辅助剂供给到目标供给量中的供给控制部（44,45,72,90）。
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公开(公告)号：US07406959B2
公开(公告)日：2008-08-05
申请号：US11628652
申请日：2005-06-02
CPC分类号： F02D41/0055 , F01N13/0097 , F02B29/0425 , F02B37/00 , F02D41/0007 , F02D41/401 , F02D41/405 , F02D2041/0017 , F02D2041/0022 , F02M26/05 , F02M26/25 , F02M26/50 , Y02T10/146 , Y02T10/42 , Y02T10/47
摘要： An engine control system includes an EGR device 10 which connects an exhaust passage Ex and an intake passage I and has an EGR valve; an intake throttle valve 41 placed in the intake passage I; and an engine control unit which is provided with an engine operation data calculator A1 accumulating mileages of a vehicle or an engine operation period, a fuel injection controller A2 controlling a fuel injection amount and a fuel injection timing, an EGR controller A3 controlling an opening of the EGR valve; a throttle valve controller A4 controlling an opening of the intake throttle valve; and an EGR passage cleaning controller A5 which delays a fuel injection timing Tn, increases an opening β g of the EGR valve, and reduces an opening θ s of the intake throttle valve when the total mileage or the total operation period calculated by the engine operation data calculator becomes equal to a predetermined threshold.
摘要翻译： 发动机控制系统包括连接排气通道Ex和进气通道I并具有EGR阀的EGR装置10; 放置在进气通道I中的进气节流阀41; 以及发动机控制单元，该发动机控制单元设置有累积车辆的里程或发动机运转期间的发动机运转数据运算部A 1，控制燃料喷射量和燃料喷射正时的燃料喷射控制器A 2，控制 EGR阀的开口; 控制进气节流阀的开度的节气门控制器A 4; 并且延迟燃料喷射正时Tn的EGR通道清洗控制器A 5增加EGR阀的开度β，并且当由发动机计算出的总里程或总运行时间时减小进气节流阀的开度θ 操作数据计算器变得等于预定阈值。
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公开(公告)号：US20080066449A1
公开(公告)日：2008-03-20
申请号：US11596975
申请日：2005-05-12
IPC分类号： F01N3/20
CPC分类号： B01D53/9495 , F01N3/0814 , F01N3/0842 , F01N3/2006 , F01N13/009 , F02B29/0406 , F02B37/00 , F02D41/0002 , F02D41/0245 , F02D41/0275 , F02D41/08 , F02D41/401 , F02D41/403 , F02M26/05 , F02M26/23 , F02M26/54 , Y02T10/26 , Y02T10/42 , Y02T10/44
摘要： There is provided an oxidizing catalyst located in the upstream of the exhaust gas purifying catalyst. The catalyst capacity of the oxidizing catalyst is set so that, in the relationship between a value obtained by dividing exhaust flow velocity by the catalyst capacity (exhaust flow velocity/catalyst capacity) and catalyst activatibility, when the exhaust flow velocity is exhaust flow velocity at the time of idle operation of the internal combustion engine, the catalyst activatibility is maximum (prescribed maximum activation range) and the value obtained by dividing the exhaust flow velocity by the catalyst capacity is maximum or close to the maximum.
摘要翻译： 提供位于废气净化催化剂上游的氧化催化剂。 设定氧化催化剂的催化剂容量，使得在排气流速除以催化剂容量（排气流速/催化剂容量）和催化剂活化能力之间获得的值与废气流速为排气流速在 内燃机的怠速运转时间，催化剂活化能力最大（规定的最大活化范围），通过将排气流速除以催化剂容量而得到的值为最大或接近最大值。
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