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1. 发明授权

US09683470B2 Exhaust gas control apparatus for internal combustion engine 有权
公开(公告)号：US09683470B2
公开(公告)日：2017-06-20
申请号：US14368832
申请日：2011-12-27
申请人： Takahiko Fujiwara , Norihisa Nakagawa , Kouichi Kimura , Shuntaro Okazaki , Keisuke Nagasaka , Ichiro Kitamura , Satoshi Kamitani , Koji Morita
发明人： Takahiko Fujiwara , Norihisa Nakagawa , Kouichi Kimura , Shuntaro Okazaki , Keisuke Nagasaka , Ichiro Kitamura , Satoshi Kamitani , Koji Morita
IPC分类号： F01N3/20 , F01N3/22 , F01N9/00 , F01N11/00 , F02D41/02 , F01N3/10
CPC分类号： F01N3/2006 , F01N3/101 , F01N3/20 , F01N3/22 , F01N9/00 , F01N11/00 , F01N2240/02 , F01N2260/04 , F01N2430/08 , F01N2560/025 , F01N2560/14 , F01N2590/11 , F01N2900/10 , F02D41/0255 , Y02T10/22 , Y02T10/47
摘要： An exhaust gas control apparatus for an internal combustion engine, controls an exhaust operation of the internal combustion engine (200) provided with an exhaust gas purification catalyst (216) in an exhaust passage (215). The exhaust gas control apparatus for the internal combustion engine is provided with; a warming-up device configured to warm up the exhaust gas purification catalyst; and an oxygen supplying device (220, 221) configured to supply oxygen to the exhaust gas purification catalyst after the end of the warm-up. This makes it possible to preferably desorb sulfur adsorbed to the exhaust gas purification catalyst during warm-up. It is therefore possible to suppress a reduction in purification ability of the exhaust gas purification catalyst due to sulfur coating.

2. 发明申请

US20150128572A1 EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气控制装置
公开(公告)号：US20150128572A1
公开(公告)日：2015-05-14
申请号：US14368832
申请日：2011-12-27
申请人： Takahiro Fujiwara , Norihisa Nakagawa , Kouichi Kimura , Shuntaro Okazaki , Keisuke Nagasaka , Ichiro Kitamura , Satoshi Kamitani , Koji Morita
发明人： Takahiro Fujiwara , Norihisa Nakagawa , Kouichi Kimura , Shuntaro Okazaki , Keisuke Nagasaka , Ichiro Kitamura , Satoshi Kamitani , Koji Morita
IPC分类号： F01N3/20 , F02D41/02
CPC分类号： F01N3/2006 , F01N3/101 , F01N3/20 , F01N3/22 , F01N9/00 , F01N11/00 , F01N2240/02 , F01N2260/04 , F01N2430/08 , F01N2560/025 , F01N2560/14 , F01N2590/11 , F01N2900/10 , F02D41/0255 , Y02T10/22 , Y02T10/47
摘要： An exhaust gas control apparatus for an internal combustion engine, controls an exhaust operation of the internal combustion engine (200) provided with an exhaust gas purification catalyst (216) in an exhaust passage (215). The exhaust gas control apparatus for the internal combustion engine is provided with a warming-up device configured to warm up the exhaust gas purification catalyst; and an oxygen supplying device (220, 221) configured to supply oxygen to the exhaust gas purification catalyst after the end of the warm-up. This makes it possible to preferably desorb sulfur adsorbed to the exhaust gas purification catalyst during warm-up. It is therefore possible to suppress a reduction in purification ability of the exhaust gas purification catalyst due to sulfur coating.
摘要翻译：一种用于内燃机的排气控制装置，控制在排气通道（215）中设置有排气净化催化剂（216）的内燃机（200）的排气操作。用于内燃机的排气控制装置设置有预热装置，其被配置为预热排气净化催化剂; 以及氧气供给装置（220,221），其构造成在所述预热结束后向所述排气净化催化剂供给氧。这使得可以优选在预热期间解吸吸附到废气净化催化剂上的硫。因此，能够抑制由于硫化而导致的排气净化催化剂的净化能力的降低。

3. 发明授权

US08309488B2 Exhaust gas purifying catalyst 有权
标题翻译：废气净化催化剂
公开(公告)号：US08309488B2
公开(公告)日：2012-11-13
申请号：US11995981
申请日：2006-07-18
申请人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
发明人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
IPC分类号： B01J23/00 , B01J21/00 , B01J20/00 , B01D50/00 , B01D53/34
CPC分类号： B01J35/0006 , B01D53/945 , B01D53/9477 , B01D2255/1025 , B01D2255/407 , B01D2255/9022 , B01J23/63 , B01J37/0244 , F01N3/10 , F01N2370/02 , F01N2510/06 , Y02T10/22
摘要： An exhaust gas purifying catalyst includes a catalyst substrate and a catalyst coating layer containing a noble metal and a refractory inorganic oxide. The catalyst coating layer includes an upstream portion located upstream and a downstream portion located downstream in a flow direction of an exhaust gas. The upstream portion has a layered structure including an upstream portion inside layer containing a cerium-zirconium composite oxide in which a relative proportion of CeO2 is 50 to 95 wt %, as the refractory inorganic oxide and an upstream portion outside layer containing a cerium-zirconium composite oxide in which a relative proportion of ZrO2 is 50 to 95 wt %, as the refractory inorganic oxide. The upstream portion outside layer and the downstream portion contain Rh as the noble metal, and an amount of Rh contained in the upstream portion outside layer is larger than an amount of Rh contained in the downstream portion.
摘要翻译：废气净化催化剂包括催化剂基质和含有贵金属和耐火无机氧化物的催化剂涂层。催化剂涂层包括位于上游的上游部分和位于排气流动方向下游的下游部分。上游部分具有包括上游部分内层的层状结构，所述上层部分内层含有CeO 2的相对比例为50〜95重量％的铈 - 锆复合氧化物作为耐火无机氧化物，以及含有铈锆的上游部分外层作为耐火性无机氧化物，ZrO 2的相对比例为50〜95重量％的复合氧化物。上游部分外层和下游部分含有Rh作为贵金属，并且上游部分外层中包含的Rh的量大于下游部分中包含的Rh的量。

4. 发明授权

US08039418B2 Exhaust gas-purifying catalyst 有权
标题翻译：废气净化催化剂
公开(公告)号：US08039418B2
公开(公告)日：2011-10-18
申请号：US12635943
申请日：2009-12-11
申请人： Ichiro Kitamura , Akimasa Hirai , Kenichi Taki
发明人： Ichiro Kitamura , Akimasa Hirai , Kenichi Taki
IPC分类号： B01J23/56 , B01J23/63 , B01J23/58 , B01D53/94
CPC分类号： F01N3/2828 , B01D53/925 , B01D2255/1023 , B01D2255/1025 , B01D2255/204 , B01D2255/206 , B01D2255/20707 , B01D2255/20715 , B01D2255/2092 , B01D2255/9022 , B01D2255/908 , B01J23/58 , B01J23/63 , B01J37/0244 , F01N2510/0682 , F01N2570/16
摘要： A high exhaust gas-purifying performance is achieved. An exhaust gas-purifying catalyst includes a substrate, a lower layer covering the substrate and including an oxygen storage material and palladium, and an upper layer covering the lower layer and including rhodium and a carrier supporting it. The lower layer is rhodium-free. The upper layer has an oxygen storage capacity lower than that of the lower layer.
摘要翻译：实现了高排气净化性能。废气净化催化剂包括基材，覆盖基材的下层，并且包含储氧材料和钯，以及覆盖下层的上层，包括铑和支撑它的载体。下层是无铑的。上层具有比下层低的储氧能力。

5. 发明授权

US08168560B2 Exhaust gas purifying catalyst 有权
标题翻译：废气净化催化剂
公开(公告)号：US08168560B2
公开(公告)日：2012-05-01
申请号：US12067837
申请日：2006-10-04
申请人： Kenichi Taki , Akimasa Hirai , Ichiro Kitamura
发明人： Kenichi Taki , Akimasa Hirai , Ichiro Kitamura
IPC分类号： B01D53/94 , B01J23/42 , B01J23/44 , B01J23/46
CPC分类号： B01J37/0244 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01J23/40 , B01J23/464 , B01J23/63
摘要： An exhaust gas purifying catalyst is provided which includes a catalyst substrate and a catalyst coating layer. The catalyst coating layer is formed on the catalyst substrate and contains a noble metal and a refractory inorganic oxide. The catalyst coating layer has a layered structure including an A-layer and a B-layer. The A-layer contains Pd and Pt as the noble metal in a weight ratio of 3:1 to 20:1. The B-layer includes Rh as the noble metal.
摘要翻译：提供了一种废气净化催化剂，其包括催化剂基质和催化剂涂层。催化剂涂层形成在催化剂基材上并含有贵金属和耐火无机氧化物。催化剂涂层具有包括A层和B层的层状结构。 A层含有Pd和Pt作为贵金属，重量比为3：1至20：1。 B层包括Rh作为贵金属。

6. 发明授权

US07737077B2 Catalyst for purifying exhaust gases 失效
标题翻译：废气净化催化剂
公开(公告)号：US07737077B2
公开(公告)日：2010-06-15
申请号：US11791141
申请日：2004-11-25
申请人： Ichiro Kitamura , Akimasa Hirai , Kenichi Taki
发明人： Ichiro Kitamura , Akimasa Hirai , Kenichi Taki
IPC分类号： B01J23/00 , B01J21/00 , B01J20/00
CPC分类号： B01J23/63 , B01D53/945 , B01J23/40 , B01J23/464 , B01J35/0006 , B01J37/0242 , B01J37/0244 , Y02T10/22
摘要： This is to provide a catalyst for purifying exhaust gases, catalyst which are good in terms of the purifying performance.A catalyst according to the present invention for purifying exhaust gases comprises: a catalytic support substrate (1); a first catalytic layer (2) having a first loading layer formed on an upstream side of the catalytic support substrate (1) and made of a fire-resistant inorganic oxide, and Rh loaded in the first loading layer; a second catalytic layer (3) having a second loading layer formed on a surface of the catalytic support substrate (1) on an downstream side of the first catalytic layer (2) and made of a fire-resistant inorganic oxide, and Pd and/or Pt loaded in the second loading layer; and a third catalytic layer (4) having a third loading layer formed on a surface of the second catalytic layer (3) and made of a fire-resistant inorganic oxide, and Rh loaded in the third loading layer; and is characterized in that: the first catalytic layer (2) is such that, when taking Rh loaded in the first catalytic layer as 100% by weight, Rh is loaded in an amount of 70% by weight or more within such a range that the distance from the surface is 20 μm; and the loading amount of Rh loaded in the first catalytic layer (2) is from 1.5 to 15 times as much as the loading amount of Rh loaded in the third loading layer. Because of the fact that Rh is loaded in a great loading amount in the superficial layer portion on an upstream side of exhaust-gas flow, it turns into a catalyst for purifying exhaust gases, catalyst which is good in terms of the purifying characteristics.
摘要翻译：这是为了提供净化废气的催化剂，在净化性能方面优异的催化剂。根据本发明的用于净化废气的催化剂包括：催化支撑基材（1）; 第一催化剂层（2），其具有形成在所述催化剂载体基材（1）的上游侧并由耐火无机氧化物制成的第一载体层，以及负载在所述第一载体层中的Rh; 第二催化剂层（3），其在第一催化剂层（2）的下游侧上形成有由耐火无机氧化物制成的催化支撑基材（1）的表面上的第二载体层，以及Pd和/ 或Pt装载在第二加载层中; 以及第三催化剂层（4），其具有形成在所述第二催化剂层（3）的表面上并由耐火无机氧化物制成的第三负载层，以及负载在所述第三负载层中的Rh; 其特征在于：第一催化剂层（2）使得当将负载在第一催化剂层中的Rh作为100重量％时，Rh的负载量为70重量％以上，表面距离为20μm; 并且负载在第一催化剂层（2）中的负载量为负载在第三装载层中的负载量的1.5〜15倍。由于Rh在排气流的上游侧的表层部中负载量大，所以成为净化特性良好的废气净化用催化剂。

7. 发明申请

US20100150792A1 EXHAUST GAS PURIFYING CATAYST 有权
标题翻译：排气净化电池
公开(公告)号：US20100150792A1
公开(公告)日：2010-06-17
申请号：US11997430
申请日：2006-07-24
申请人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
发明人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
IPC分类号： B01D53/86 , B01J15/00 , F01N3/24
CPC分类号： B01D53/945 , B01D2255/102 , B01D2255/407 , B01J23/63 , B01J35/0006 , B01J37/0244 , F01N3/28 , F01N2510/065 , Y02T10/22
摘要： An exhaust gas purifying catalyst having a good ignition performance is provided. The exhaust gas purifying catalyst 1 includes a catalyst substrate 3 and a catalyst coating layer 5 which contains a noble metal and a refractory inorganic oxide and is formed on the catalyst substrate. The exhaust gas purifying catalyst is characterized in that the catalyst coating layer 5 includes an upstream portion 11 located upstream and a downstream portion 13 located downstream in a flow direction of an exhaust gas. The upstream portion 11 has a layered structure including an upstream portion inside layer 17 and an upstream portion outside layer 15. The upstream portion inside layer contains a cerium-zirconium composite oxide in which a relative proportion of CeO2 is 50 to 95 wt %, as the refractory inorganic oxide, and the upstream portion outside layer 15 and the downstream portion 13 contain a cerium-zirconium composite oxide in which a relative proportion of ZrO2 is 50 to 95 wt %, as the refractory inorganic oxide.
摘要翻译：提供具有良好点火性能的废气净化催化剂。废气净化催化剂1包括催化剂基板3和含有贵金属和耐火无机氧化物并形成在催化剂基板上的催化剂涂层5。废气净化催化剂的特征在于，催化剂涂层5包括位于上游的上游部分11和位于排气流动方向下游的下游部分13。上游部分11具有包括上游部分内层17和上游部分外侧层15的层状结构。上游部分内层含有CeO 2的相对比例为50〜95重量％的铈锆复合氧化物，如耐火无机氧化物，上游侧外层15和下游部13含有ZrO 2的相对比例为50〜95重量％的铈 - 锆复合氧化物作为耐火无机氧化物。

8. 发明申请

US20090124492A1 EXHAUST GAS PURIFYING CATAYST 有权
标题翻译：排气净化电池
公开(公告)号：US20090124492A1
公开(公告)日：2009-05-14
申请号：US11995981
申请日：2006-07-18
申请人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
发明人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
IPC分类号： B01J23/10
CPC分类号： B01J35/0006 , B01D53/945 , B01D53/9477 , B01D2255/1025 , B01D2255/407 , B01D2255/9022 , B01J23/63 , B01J37/0244 , F01N3/10 , F01N2370/02 , F01N2510/06 , Y02T10/22
摘要： An exhaust gas purifying catalyst includes a catalyst substrate and a catalyst coating layer containing a noble metal and a refractory inorganic oxide. The catalyst coating layer includes an upstream portion located upstream and a downstream portion located downstream in a flow direction of an exhaust gas. The upstream portion has a layered structure including an upstream portion inside layer containing a cerium-zirconium composite oxide in which a relative proportion of CeO2 is 50 to 95 wt %, as the refractory inorganic oxide and an upstream portion outside layer containing a cerium-zirconium composite oxide in which a relative proportion of ZrO2 is 50 to 95 wt %, as the refractory inorganic oxide. The upstream portion outside layer and the downstream portion contain Rh as the noble metal, and an amount of Rh contained in the upstream portion outside layer is larger than an amount of Rh contained in the downstream portion.
摘要翻译：废气净化催化剂包括催化剂基质和含有贵金属和耐火无机氧化物的催化剂涂层。催化剂涂层包括位于上游的上游部分和位于排气流动方向下游的下游部分。上游部分具有包括上游部分内层的层状结构，所述上层部分内层含有CeO 2的相对比例为50〜95重量％的铈 - 锆复合氧化物作为耐火无机氧化物，以及含有铈锆的上游部分外层作为耐火性无机氧化物，ZrO 2的相对比例为50〜95重量％的复合氧化物。上游部分外层和下游部分含有Rh作为贵金属，并且上游部分外层中包含的Rh的量大于下游部分中包含的Rh的量。

9. 发明授权

US08680004B2 Exhaust gas-purifying catalyst 有权
标题翻译：废气净化催化剂
公开(公告)号：US08680004B2
公开(公告)日：2014-03-25
申请号：US13006352
申请日：2011-01-13
申请人： Ichiro Kitamura , Akimasa Hirai , Kenichi Taki
发明人： Ichiro Kitamura , Akimasa Hirai , Kenichi Taki
IPC分类号： B01J23/00 , B01J23/10
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/2092 , B01D2255/407 , B01D2255/50 , B01D2255/9022 , B01J23/002 , B01J37/0234 , B01J37/0244 , B01J37/0246 , B01J2523/00 , F01N2510/063 , F01N2510/0682 , Y02T10/22 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/36 , B01J2523/3718 , B01J2523/3725
摘要： Provided is an exhaust gas-purifying catalyst excelling in an exhaust gas-purifying performance. The exhaust gas-purifying catalyst contains a substrate, and a catalyst layer formed on the substrate and containing a precious metal and praseodymium.
摘要翻译：提供了排气净化性能优异的废气净化用催化剂。废气净化催化剂含有基材和形成在基材上并含有贵金属和镨的催化剂层。

10. 发明授权

US07998896B2 Exhaust gas purifying catalyst 有权
标题翻译：废气净化催化剂
公开(公告)号：US07998896B2
公开(公告)日：2011-08-16
申请号：US11997430
申请日：2006-07-24
申请人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
发明人： Ichiro Kitamura , Kenichi Taki , Akimasa Hirai
IPC分类号： B01J23/00 , B01J21/00 , B01J20/00 , B01D50/00 , B01D53/34
CPC分类号： B01D53/945 , B01D2255/102 , B01D2255/407 , B01J23/63 , B01J35/0006 , B01J37/0244 , F01N3/28 , F01N2510/065 , Y02T10/22
摘要： An exhaust gas purifying catalyst having a good ignition performance is provided. The exhaust gas purifying catalyst 1 includes a catalyst substrate 3 and a catalyst coating layer 5 which contains a noble metal and a refractory inorganic oxide and is formed on the catalyst substrate. The exhaust gas purifying catalyst is characterized in that the catalyst coating layer 5 includes an upstream portion 11 located upstream and a downstream portion 13 located downstream in a flow direction of an exhaust gas. The upstream portion 11 has a layered structure including an upstream portion inside layer 17 and an upstream portion outside layer 15. The upstream portion inside layer contains a cerium-zirconium composite oxide in which a relative proportion of CeO2 is 50 to 95 wt %, as the refractory inorganic oxide, and the upstream portion outside layer 15 and the downstream portion 13 contain a cerium-zirconium composite oxide in which a relative proportion of ZrO2 is 50 to 95 wt %, as the refractory inorganic oxide.
摘要翻译：提供具有良好点火性能的废气净化催化剂。废气净化催化剂1包括催化剂基板3和含有贵金属和耐火无机氧化物并形成在催化剂基板上的催化剂涂层5。废气净化催化剂的特征在于，催化剂涂层5包括位于上游的上游部分11和位于排气流动方向下游的下游部分13。上游部分11具有包括上游部分内层17和上游部分外侧层15的层状结构。上游部分内层含有CeO 2的相对比例为50〜95重量％的铈锆复合氧化物，如耐火无机氧化物，上游侧外层15和下游部13含有ZrO 2的相对比例为50〜95重量％的铈 - 锆复合氧化物作为耐火无机氧化物。

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