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1. 发明申请

US20120144807A1 EXHAUST GAS PURIFICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气净化系统
公开(公告)号：US20120144807A1
公开(公告)日：2012-06-14
申请号：US12677249
申请日：2009-03-31
申请人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide IIda , Itsuya Kurisaka , Ko Sugawara
发明人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide IIda , Itsuya Kurisaka , Ko Sugawara
IPC分类号： F01N3/18
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N2570/04 , F01N2900/1612 , F02D41/028 , F02D41/1446 , F02D2200/0818
摘要： The present invention is intended to improve a SOx reduction rate which is a ratio of an amount of SOx reduction with respect to an amount of SOx occlusion in SOx poisoning recovery processing. In the present invention, in the SOx poisoning recovery processing in which the SOx occluded in an NOx storage reduction catalyst is reduced by decreasing the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst to a predetermined air fuel ratio in a repeated manner, the length of a period in which the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst is decreased is made longer in a relatively early time during the processing than in a relatively late time during the processing.
摘要翻译：本发明旨在提高SOx还原速率，SOx还原速率是SOx中毒恢复处理中SO x还原量相对于SOx吸收量的比例。在本发明中，在通过将流入NOx吸留还原催化剂的废气的空燃比减少到规定的空燃比来减少NOx吸留还原催化剂中的SO x的SOx中毒恢复处理中，在处理期间相对较早的时间内，流入NOx储存还原催化剂的排气的空燃比减少的时间段的长度比处理期间相对较晚的时间长。

2. 发明授权

US09970341B2 Exhaust purification system of internal combustion engine 有权
公开(公告)号：US09970341B2
公开(公告)日：2018-05-15
申请号：US14117549
申请日：2013-04-09
申请人： Itsuya Kurisaka
发明人： Itsuya Kurisaka
IPC分类号： F01N3/00 , F01N3/025 , F01N3/08 , F01N9/00 , F01N3/035 , F01N3/20
CPC分类号： F01N3/0253 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/206 , F01N9/00 , F01N9/002 , F01N2610/03 , F01N2900/1602 , F01N2900/1808 , Y02T10/47
摘要： In an internal combustion engine, an exhaust purification catalyst, hydrocarbon feed valve, and particulate filter are arranged in an exhaust passage. Hydrocarbons are injected from the hydrocarbon feed valve by a predetermined period so as to remove NOX which is contained in the exhaust gas in first NOX removal method. While doing this, the particulate matter which is trapped on the particulate filter is removed by raising the temperature of the particulate filter in temperature elevation control. At this time, the hydrocarbon injection for the first NOX removal method is performed by the predetermined period at the preset injection pressure. During the time period when the hydrocarbon injection for the first NOX removal method is not being performed, the hydrocarbon injection for the temperature elevation control is performed by an injection pressure which is set lower than the preset injection pressure.

3. 发明申请

US20160040570A1 EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机排气净化系统
公开(公告)号：US20160040570A1
公开(公告)日：2016-02-11
申请号：US14117549
申请日：2013-04-09
申请人： Itsuya KURISAKA
发明人： Itsuya KURISAKA
IPC分类号： F01N3/025 , F01N3/20 , F01N3/035
CPC分类号： F01N3/0253 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/206 , F01N9/00 , F01N9/002 , F01N2610/03 , F01N2900/1602 , F01N2900/1808 , Y02T10/47
摘要： In an internal combustion engine, an exhaust purification catalyst, hydrocarbon feed valve, and particulate filter are arranged in an exhaust passage. Hydrocarbons are injected from the hydrocarbon feed valve by a predetermined period so as to remove NOX which is contained in the exhaust gas in first NOX removal method. While doing this, the particulate matter which is trapped on the particulate filter is removed by raising the temperature of the particulate filter in temperature elevation control. At this time, the hydrocarbon injection for the first NOX removal method is performed by the predetermined period at the preset injection pressure. During the time period when the hydrocarbon injection for the first NOX removal method is not being performed, the hydrocarbon injection for the temperature elevation control is performed by an injection pressure which is set lower than the preset injection pressure.
摘要翻译：在内燃机中，排气净化催化剂，烃供给阀和微粒过滤器配置在排气通路中。碳氢化合物从烃进料阀注入预定的时间，以便在第一NOX去除方法中除去废气中所含的NO x。在这样做时，通过在温度升高控制中提高微粒过滤器的温度来除去捕获在微粒过滤器上的颗粒物质。此时，在预先设定的喷射压力下，通过预定时间段进行第一NOX除去方法的烃喷射。在不执行第一NOX去除方法的烃注入的时间段期间，通过设定为低于预设喷射压力的喷射压力进行升温控制的烃喷射。

4. 发明授权

US08650863B2 Exhaust gas purification system for an internal combustion engine 有权
标题翻译：内燃机废气净化系统
公开(公告)号：US08650863B2
公开(公告)日：2014-02-18
申请号：US12677249
申请日：2009-03-31
申请人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide Iida , Itsuya Kurisaka , Ko Sugawara
发明人： Yuichi Sobue , Kohei Yoshida , Hiroshi Otsuki , Masahide Iida , Itsuya Kurisaka , Ko Sugawara
IPC分类号： F01N3/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N2570/04 , F01N2900/1612 , F02D41/028 , F02D41/1446 , F02D2200/0818
摘要： The present invention is intended to improve a SOx reduction rate which is a ratio of an amount of SOx reduction with respect to an amount of SOx occlusion in SOx poisoning recovery processing. In the present invention, in the SOx poisoning recovery processing in which the SOx occluded in an NOx storage reduction catalyst is reduced by decreasing the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst to a predetermined air fuel ratio in a repeated manner, the length of a period in which the air fuel ratio of an exhaust gas flowing into the NOx storage reduction catalyst is decreased is made longer in a relatively early time during the processing than in a relatively late time during the processing.
摘要翻译：本发明旨在提高SOx还原速率，SOx还原速率是SOx中毒恢复处理中SO x还原量相对于SOx吸收量的比例。在本发明中，在通过将流入NOx吸留还原催化剂的废气的空燃比减少到规定的空燃比来减少NOx吸留还原催化剂中的SO x的SOx中毒恢复处理中，在处理期间相对较早的时间内，流入NOx储存还原催化剂的排气的空燃比减少的时间段的长度比处理期间相对较晚的时间长。

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