专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08875497B2 Exhaust purification system for internal combustion engine 有权
标题翻译：内燃机排气净化系统
公开(公告)号：US08875497B2
公开(公告)日：2014-11-04
申请号：US13439434
申请日：2012-04-04
申请人： Hideki Matsunaga , Yuji Yasui , Eiji Hashimoto , Hisao Haga , Naohiro Sato , Masafumi Sakota
发明人： Hideki Matsunaga , Yuji Yasui , Eiji Hashimoto , Hisao Haga , Naohiro Sato , Masafumi Sakota
IPC分类号： F01N3/00 , F01N3/10 , F01N13/00 , F01N3/20 , F02D41/00 , F01N3/08 , F02D41/10 , F02D41/14 , B01D53/94 , F02D41/02
CPC分类号： F02D41/0055 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D2255/50 , B01D2255/91 , B01D2255/912 , F01N3/0814 , F01N3/106 , F01N3/2066 , F01N3/208 , F01N13/009 , F01N13/0097 , F01N2370/04 , F01N2560/026 , F01N2570/14 , F02D41/0275 , F02D41/10 , F02D41/1446 , F02D41/146 , F02D2041/1468 , F02D2200/0802 , F02D2200/0806 , Y02A50/2344 , Y02A50/2345 , Y02T10/24 , Y02T10/47
摘要： An exhaust purification system for an internal combustion engine is provided that can steadily maintain a NOx purification rate of a selective reduction catalyst to be high without allowing the fuel economy or marketability to deteriorate. The exhaust purification system includes a NO2—NOx ratio adjustment mechanism that causes a NO2—NOx ratio to change; and a NO2—NOx ratio perturbation controller that executes NO2—NOx ratio perturbation control so that a NO2 balance of the selective reduction catalyst in a predetermined time period, with NO2 adsorption being positive and NO2 release being negative, is 0. Herein, NO2—NOx ratio perturbation control is defined as control that alternately executes NO2 increase control to cause the NO2—NOx ratio to be greater than a reference value near 0.5, and NO2 decrease control to cause the NO2—NOx ratio to be less than the reference value.
摘要翻译：提供一种用于内燃机的排气净化系统，其能够稳定地将选择还原型催化剂的NOx净化率维持在高，而不会使燃料经济性或可销售性劣化。排气净化系统包括使NO2-NOx比变化的NO2-NOx比调节机构; 以及NO2-NOx比扰动控制器，其执行NO2-NOx比扰动控制，使得在NO 2吸附为正，NO2释放为负的预定时间段内的选择还原催化剂的NO 2平衡为0.这里，NO2- NOx比例扰动控制被定义为交替地执行NO2增加控制以使NO 2 -NO x比大于接近0.5的参考值的控制，并且NO 2减少控制以使NO 2 -NOO比小于参考值。

2. 发明申请

US20120255286A1 EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机排气净化系统
公开(公告)号：US20120255286A1
公开(公告)日：2012-10-11
申请号：US13439434
申请日：2012-04-04
申请人： Hideki MATSUNAGA , Yuji Yasui , Eiji Hashimoto , Hisao Haga , Naohiro Sato , Masafumi Sakota
发明人： Hideki MATSUNAGA , Yuji Yasui , Eiji Hashimoto , Hisao Haga , Naohiro Sato , Masafumi Sakota
IPC分类号： F01N3/10
CPC分类号： F02D41/0055 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D2255/50 , B01D2255/91 , B01D2255/912 , F01N3/0814 , F01N3/106 , F01N3/2066 , F01N3/208 , F01N13/009 , F01N13/0097 , F01N2370/04 , F01N2560/026 , F01N2570/14 , F02D41/0275 , F02D41/10 , F02D41/1446 , F02D41/146 , F02D2041/1468 , F02D2200/0802 , F02D2200/0806 , Y02A50/2344 , Y02A50/2345 , Y02T10/24 , Y02T10/47
摘要： An exhaust purification system for an internal combustion engine is provided that can steadily maintain a NOx purification rate of a selective reduction catalyst to be high without allowing the fuel economy or marketability to deteriorate. The exhaust purification system includes a NO2—NOx ratio adjustment mechanism that causes a NO2—NOx ratio to change; and a NO2—NOx ratio perturbation controller that executes NO2—NOx ratio perturbation control so that a NO2 balance of the selective reduction catalyst in a predetermined time period, with NO2 adsorption being positive and NO2 release being negative, is 0. Herein, NO2—NOx ratio perturbation control is defined as control that alternately executes NO2 increase control to cause the NO2—NOx ratio to be greater than a reference value near 0.5, and NO2 decrease control to cause the NO2—NOx ratio to be less than the reference value.
摘要翻译：提供一种用于内燃机的排气净化系统，其能够稳定地将选择还原型催化剂的NOx净化率维持在高，而不会使燃料经济性或可销售性劣化。排气净化系统包括使NO2-NOx比变化的NO2-NOx比调节机构; 以及NO2-NOx比扰动控制器，其执行NO2-NOx比扰动控制，使得在NO 2吸附为正，NO2释放为负的预定时间段内的选择还原催化剂的NO 2平衡为0.这里，NO2- NOx比例扰动控制被定义为交替地执行NO2增加控制以使NO 2 -NO x比大于接近0.5的参考值的控制，并且NO 2减少控制以使NO 2 -NOO比小于参考值。

3. 发明授权

US07992378B2 Exhaust gas purifying device for an internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US07992378B2
公开(公告)日：2011-08-09
申请号：US11980924
申请日：2007-10-31
申请人： Tomoko Morita , Norio Suzuki , Naohiro Sato
发明人： Tomoko Morita , Norio Suzuki , Naohiro Sato
IPC分类号： F01N3/00 , F01N3/10
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N11/002 , F01N2550/03 , F01N2610/03 , F02D41/0275 , F02D41/1441 , F02D2200/0806 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purifying device for an internal combustion engine, comprises: an exhaust purifying catalyst; a NOx purifying catalyst disposed downstream of the exhaust purifying catalyst; upstream and downstream A/F detecting sensors disposed on upstream and downstream sides of the exhaust purifying catalyst, respectively; means for supplying a reducing agent to the NOx purifying catalyst when conducting a reduction control of the NOx; means for calculating an amount of reduced NOx in the NOx purifying catalyst; means for terminating the reduction control when the amount of reduced NOx exceeds a prescribed reduction termination threshold value; means for detecting a degree of deterioration of the exhaust purifying catalyst based on an output from the upstream and downstream A/F detecting sensors; a threshold value correcting means for correcting the reduction termination threshold value according to the degree of deterioration of the exhaust purifying catalyst; and a correction prohibiting means for prohibiting the correction of the reduction termination threshold value when an amount of H2 and/or CH4 in the exhaust gas exceeds a prescribed correction prohibiting judgment value.
摘要翻译：一种用于内燃机的废气净化装置，包括：排气净化催化剂; 设置在所述排气净化催化剂的下游的NOx净化催化剂; 分别设置在排气净化催化剂的上游侧和下游侧的上下游A / F检测传感器; 用于在进行NOx的还原控制时向NOx净化催化剂供给还原剂的装置; 用于计算NOx净化催化剂中的还原NOx量的装置; 用于当减少的NOx的量超过规定的减少终止阈值时终止减少控制的装置; 用于根据来自上游和下游的A / F检测传感器的输出来检测排气净化催化剂的劣化程度的装置; 阈值校正装置，用于根据排气净化催化剂的劣化程度来校正所述还原终止阈值; 以及校正禁止装置，用于当排气中的H2和/或CH4的量超过规定的校正禁止判定值时，禁止修正减少终止阈值。

4. 发明授权

US07666375B2 Method for catalytic reduction of nitrogen oxides 有权
标题翻译：催化还原氮氧化物的方法
公开(公告)号：US07666375B2
公开(公告)日：2010-02-23
申请号：US11658729
申请日：2005-08-01
申请人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
发明人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
IPC分类号： B01D53/56 , B01D53/94
CPC分类号： B01J23/63 , B01D53/9422 , B01D53/9495 , B01D2255/1021 , B01D2255/1025 , B01D2255/206 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/20715 , B01D2258/012 , B01J35/04 , B01J37/0248 , F01N3/0807 , F01N3/0814 , F01N3/0864
摘要： A method comprising subjecting fuel to combustion while the combustion atmosphere of the fuel is oscillated periodically and alternately between rich and lean conditions, leading the exhaust gas formed to a catalytic reactor, and bringing the exhaust gas into contact with a catalyst in the catalytic reactor to conduct catalytic reduction of nitrogen oxides contained in the exhaust gas, wherein the catalyst comprises as catalyst components: (A) an oxide catalyst component A comprising (a) ceria or (b) praseodymium oxide or (c) a mixture of oxides and/or a composite oxide of at least two elements selected from cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum; and (B) (d) a noble metal catalyst component B selected from platinum, rhodium, palladium and oxides thereof; under an oxygen concentration adjusted to the range of 0.1-1.0% at the exit of the catalytic reactor under the rich conditions.
摘要翻译：一种方法，其特征在于，在燃料的燃烧气氛周期性地，在富气和稀薄条件之间交替地摆动燃料进行燃烧，导致形成于催化反应器的排气，使排气与催化反应器中的催化剂接触，进行催化还原废气中所含的氮氧化物，其中催化剂包括作为催化剂组分：（A）氧化物催化剂组分A，其包含（a）二氧化铈或（b）氧化镨或（c）氧化物和/或选自铈，锆，镨，钕，铽，钐，钆和镧中的至少两种元素的复合氧化物; 和（B）（d）贵金属催化剂组分B，其选自铂，铑，钯及其氧化物; 在富氧条件下在催化反应器出口处的氧浓度调节至0.1-1.0％的范围内。

5. 发明授权

US08372366B2 NOx purifying catalyst 失效
标题翻译： NOx净化催化剂
公开(公告)号：US08372366B2
公开(公告)日：2013-02-12
申请号：US12669309
申请日：2008-07-04
申请人： Naohiro Sato , Osami Yamamoto , Koichi Inaba
发明人： Naohiro Sato , Osami Yamamoto , Koichi Inaba
IPC分类号： B01D53/56 , B01D53/34 , B01J21/00 , B01J29/06
CPC分类号： B01J29/7615 , B01D53/9418 , B01D53/9422 , B01D53/9468 , B01D2251/2062 , B01D2255/1021 , B01D2255/2065 , B01D2255/20738 , B01D2255/502 , B01D2255/9022 , B01D2258/012 , B01J23/63 , B01J37/0244 , B01J37/0246 , B01J2229/186 , F01N2510/06 , F01N2510/0684 , Y02A50/2325 , Y02T10/24
摘要： Disclosed is a NOx purifying catalyst which is capable of removing NOx sufficiently efficiently even during operations at low temperatures such as operations in diesel cars. Specifically disclosed is a NOx purifying catalyst for processing NOx in an exhaust gas by performing lean/rich control of air/fuel ratio of the exhaust gas. This NOx purifying catalyst comprises at least a first catalyst layer containing a β zeolite containing iron element and a cerium oxide material and a second catalyst layer containing a noble metal, a cerium oxide material and a heat-resistant inorganic oxide. The second catalyst layer and the first catalyst layer are sequentially arranged on a carrier in such a manner that the first catalyst layer forms the uppermost layer.
摘要翻译：公开了一种NOx净化催化剂，其即使在低温操作（例如柴油车辆中的操作）也能够充分有效地除去NOx。具体公开了一种用于通过对废气的空气/燃料比进行稀薄/丰富的控制来处理废气中的NOx的NOx净化催化剂。该NOx净化催化剂至少包含含有第一催化剂层的第一催化剂层，含沸石的铁元素和氧化铈材料，以及含有贵金属，氧化铈材料和耐热无机氧化物的第二催化剂层。第二催化剂层和第一催化剂层以使得第一催化剂层形成最上层的顺序排列在载体上。

6. 发明授权

US08205449B2 Internal combustion engine and control system for internal combustion engine 失效
标题翻译：内燃机内燃机及内燃机控制系统
公开(公告)号：US08205449B2
公开(公告)日：2012-06-26
申请号：US12301663
申请日：2008-02-13
申请人： Fumihiro Mondori , Naohiro Sato
发明人： Fumihiro Mondori , Naohiro Sato
IPC分类号： F02B33/44
CPC分类号： F01N13/009 , F01N3/2053 , F01N2340/06 , F01N2410/06 , F02B37/18 , F02D41/0065 , F02D41/123 , F02D2041/0067 , F02M26/05 , F02M26/15 , F02M26/25 , F02M26/44 , F02M26/47 , Y02T10/22 , Y02T10/47
摘要： An internal combustion engine having a turbocharger is provided. The engine includes a turbine of the turbocharger located in an exhaust system of the engine, an upstream side catalyst located upstream of the turbine, a catalyst bypass passage bypassing the upstream side catalyst, a catalyst bypass passage on/off valve for opening and closing the catalyst bypass passage, and a first exhaust gas recirculation passage for recirculating a part of exhaust gases from a portion between the upstream side catalyst and the turbine to an intake system of the engine. The engine, that further includes a second exhaust gas recirculation passage for recirculating a part of exhaust gases from an upstream side of the upstream side catalyst to the intake system, and a switching valve for switching between the first exhaust recirculation passage and the second exhaust recirculation passage, is provided.
摘要翻译：提供具有涡轮增压器的内燃机。发动机包括位于发动机的排气系统中的涡轮增压器的涡轮机，位于涡轮机上游的上游侧催化剂，旁通上游侧催化剂的催化剂旁通通道，用于打开和关闭催化剂旁路通道和用于使一部分废气从上游侧催化剂和涡轮机之间的部分再循环到发动机的进气系统的第一废气再循环通道。所述发动机还包括第二废气再循环通道，用于使一部分废气从所述上游侧催化剂的上游侧再循环到所述进气系统;以及切换阀，用于在所述第一排气再循环通道和所述第二排气再循环通道。

7. 发明申请

US20100190634A1 NOx Purifying CATALYST 失效
标题翻译： NOx净化催化剂
公开(公告)号：US20100190634A1
公开(公告)日：2010-07-29
申请号：US12669309
申请日：2008-07-04
申请人： Naohiro Sato , Osami Yamamoto , Koichi Inaba
发明人： Naohiro Sato , Osami Yamamoto , Koichi Inaba
IPC分类号： B01J29/072 , B01J29/06
CPC分类号： B01J29/7615 , B01D53/9418 , B01D53/9422 , B01D53/9468 , B01D2251/2062 , B01D2255/1021 , B01D2255/2065 , B01D2255/20738 , B01D2255/502 , B01D2255/9022 , B01D2258/012 , B01J23/63 , B01J37/0244 , B01J37/0246 , B01J2229/186 , F01N2510/06 , F01N2510/0684 , Y02A50/2325 , Y02T10/24
摘要： Disclosed is a NOx purifying catalyst which is capable of removing NOx sufficiently efficiently even during operations at low temperatures such as operations in diesel cars. Specifically disclosed is a NOx purifying catalyst for processing NOx in an exhaust gas by performing lean/rich control of air/fuel ratio of the exhaust gas. This NOx purifying catalyst comprises at least a first catalyst layer containing a β zeolite containing iron element and a cerium oxide material and a second catalyst layer containing a noble metal, a cerium oxide material and a heat-resistant inorganic oxide. The second catalyst layer and the first catalyst layer are sequentially arranged on a carrier in such a manner that the first catalyst layer forms the uppermost layer.
摘要翻译：公开了一种NOx净化催化剂，其即使在低温操作（例如柴油车辆中的操作）也能够充分有效地除去NOx。具体公开了一种用于通过对废气的空气/燃料比进行稀薄/丰富的控制来处理废气中的NOx的NOx净化催化剂。该NOx净化催化剂至少包含含有第一催化剂层的第一催化剂层，含沸石的铁元素和氧化铈材料，以及含有贵金属，氧化铈材料和耐热无机氧化物的第二催化剂层。第二催化剂层和第一催化剂层以使得第一催化剂层形成最上层的顺序排列在载体上。

8. 发明申请

US20100224142A1 METHOD OF EXHAUST CLEANING FOR INTERNAL COMBUSTION ENGINE AND EXHAUST CLEANER 失效
标题翻译：内燃机和排气清洁器的排气清洗方法
公开(公告)号：US20100224142A1
公开(公告)日：2010-09-09
申请号：US12739310
申请日：2008-10-22
申请人： Jun Iwamoto , Go Motohashi , Naohiro Sato , Hiroshi Ohno
发明人： Jun Iwamoto , Go Motohashi , Naohiro Sato , Hiroshi Ohno
IPC分类号： F02B43/08 , F01N3/10 , F01N3/02
CPC分类号： F01N3/0814 , B01D53/9413 , B01D53/945 , B01D53/9459 , B01D53/9477 , B01D2251/204 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2065 , B01D2255/50 , B01D2255/908 , B01D2255/91 , B01D2255/911 , B01D2258/012 , F01N3/035 , F01N3/106 , F01N3/108 , F01N3/2073 , F01N13/009 , F01N2240/25 , F01N2240/30 , F01N2610/04 , F01N2610/05 , F02B29/0406 , F02M26/05 , F02M26/15 , F02M26/23 , Y02A50/2341 , Y02T10/22
摘要： An exhaust cleaning method and exhaust cleaning apparatus for an internal combustion engine (1) in which a fuel is fed and burned under periodical rich/lean combustion conditions. In a fuel reformer (18) disposed independently of an exhaust channel (11) in the engine (1), the fuel for the internal combustion engine (1) is reformed to produce a reformed gas containing carbon monoxide. The reformed gas is supplied to the exhaust to be introduced into an exhaust converter (17) having, disposed therein, a catalyst which adsorbs and reduces nitrogen oxides. The nitrogen oxides contained in the exhaust gas are adsorbed and reduced. Thus, the nitrogen oxides contained in the exhaust are removed at a high efficiency.
摘要翻译：一种用于内燃机（1）的排气净化方法和排气净化装置，其中燃料在周期性富/稀燃烧条件下进料和燃烧。在独立于发动机（1）中的排气通道（11）设置的燃料重整器（18）中，内燃机（1）的燃料被重整以产生含有一氧化碳的重整气体。将改性气体供给到引入排气转化器（17）的排气口，排气转化器（17）中设置有吸附和还原氮氧化物的催化剂。废气中所含的氮氧化物被吸附和还原。因此，排出物中所含的氮氧化物被高效率地除去。

9. 发明申请

US20080196399A1 Catalyst and method for purification of diesel engine exhaust gas 有权
标题翻译：催化剂和柴油发动机废气净化方法
公开(公告)号：US20080196399A1
公开(公告)日：2008-08-21
申请号：US12008609
申请日：2008-01-11
申请人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
发明人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
IPC分类号： F01N3/10
CPC分类号： F01N3/0807 , F01N2570/14 , Y02A50/2344 , Y02T10/20
摘要： The invention provides a catalyst for catalytically reducing nitrogen oxides in diesel engine exhaust gas by use of unburnt carbon contained in the diesel engine exhaust gas as a reducing agent, the catalyst comprising: (a) an acid zeolite, or (b) an alkali metal- and/or alkaline earth metal-containing zeolite, or (c) a rare earth metal-containing zeolite, or (d) a zeolite containing at least one transition metal selected from Fe, Co, Ni and Cu.
摘要翻译：本发明提供了一种用于通过使用柴油机废气中所含的未燃烧碳作为还原剂来催化还原柴油发动机废气中的氮氧化物的催化剂，所述催化剂包含：（a）酸性沸石，或（b）碱金属 - 和/或含碱土金属的沸石，或（c）含稀土金属的沸石，或（d）含有至少一种选自Fe，Co，Ni和Cu的过渡金属的沸石。

10. 发明申请

US20080196396A1 Catalyst and method for purification of diesel engine exhaust gas 审中-公开
标题翻译：催化剂和柴油发动机废气净化方法
公开(公告)号：US20080196396A1
公开(公告)日：2008-08-21
申请号：US12008505
申请日：2008-01-11
申请人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
发明人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
IPC分类号： F01N3/28 , F01N3/022
CPC分类号： B01D53/9418 , B01D2255/2073 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/2092 , B01D2255/915 , B01D2257/402 , B01D2258/012 , B01J21/04 , B01J23/002 , B01J23/72 , B01J23/745 , B01J23/75 , B01J23/755 , F01N3/035 , Y02C20/10 , Y02T10/24
摘要： The invention provides a catalyst for catalytically reducing nitrogen oxides in diesel engine exhaust gas by use of unburnt carbon contained in the diesel engine exhaust gas as a reducing agent, the catalyst comprising:(a) alumina, or(b) alumina supporting an ion and/or an oxide of at least one transition metal selected from the elements of Period 4 of the Periodic Table, or(c) alumina supporting an aluminate of at least one transition metal selected from the elements of Period 4 of the Periodic Table.
摘要翻译：本发明提供一种用于催化还原柴油发动机废气中的氮氧化物的催化剂，该催化剂通过使用柴油机废气中所含的未燃碳作为还原剂，所述催化剂包括：（a）氧化铝或（b）负载离子的氧化铝， /或至少一种选自元素周期表4的元素的过渡金属的氧化物，或（c）支持选自元素周期4的元素的至少一种过渡金属的铝酸盐的氧化铝。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式