公开(公告)号：US6047544A

公开(公告)日：2000-04-11

申请号：US136932

申请日：1998-08-20

申请人： Shinji Yamamoto ,  Satomi Etou ,  Masahiro Takaya

发明人： Shinji Yamamoto ,  Satomi Etou ,  Masahiro Takaya

IPC分类号： B01D53/94 ,  B01J23/40 ,  B01J35/04 ,  B01J37/02 ,  F01N3/02 ,  F01N3/06 ,  F01N3/08 ,  F01N3/30 ,  F01N11/00 ,  F01N13/02 ,  F01N13/04 ,  F01N3/00

CPC分类号： F01N3/0835 ,  B01D53/945 ,  B01D53/9486 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  F01N11/002 ,  F01N13/009 ,  F01N13/011 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/30 ,  B01D2253/108 ,  B01D2253/306 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/104 ,  B01D2255/204 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/20715 ,  B01D2255/9207 ,  B01J23/40 ,  F01N2550/03 ,  F01N3/02 ,  F01N3/06 ,  Y02T10/22 ,  Y02T10/47

摘要： In a catalyst unit which purifies the exhaust gas of an engine, a first layer comprising a zeolite hydrocarbon adsorbent is formed on a monolithic substrate. A catalyst layer comprising palladium, platinum or rhodium as a three way catalyst is formed on the first layer. The Geometrical Surface Area of the monolithic substrate is set in the range of 10-35 cm.sup.2 /cm.sup.3. The weight ratio of the first layer and the catalyst layer is set to from 9:1 to 1:4.

摘要翻译： 在净化发动机废气的催化剂单元中，在整体式基板上形成包含沸石烃吸附剂的第一层。 在第一层上形成包含钯，铂或铑作为三元催化剂的催化剂层。 单片基板的几何表面积设定在10-35cm 2 / cm 3的范围内。 第一层和催化剂层的重量比设定为9:1至1:4。

公开(公告)号：US06967186B2

公开(公告)日：2005-11-22

申请号：US10285456

申请日：2002-11-01

申请人： Masahiro Takaya ,  Shinji Yamamoto ,  Yoshiaki Hiramoto

发明人： Masahiro Takaya ,  Shinji Yamamoto ,  Yoshiaki Hiramoto

IPC分类号： F01N3/24 ,  B01D53/94 ,  B01J23/58 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  F01N3/08 ,  F01N3/28 ,  F01N13/02 ,  B01J23/00 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/56

CPC分类号： B01D53/945 ,  B01D53/9454 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/502 ,  B01D2255/902 ,  B01D2255/908 ,  B01D2255/912 ,  B01D2255/92 ,  B01J23/63 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/2828 ,  F01N13/009 ,  F01N13/0097 ,  F01N2370/04 ,  F01N2510/06 ,  F01N2510/0682 ,  F01N2510/0684 ,  F01N2570/16 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst including a carrier having a plurality of cells as exhaust gas passages, an HC adsorbent layer formed on the carrier of each of the cells, and an upper catalyst layer disposed on an upstream side of each of the exhaust gas passages on the HC adsorbent layer and a lower catalyst layer disposed on a downstream side of each of the exhaust gas passages on the HC adsorbent layer. The upper catalyst layer includes more O2-storage material than the lower catalyst layer, and the lower catalyst layer includes a catalyst having a wider activation range than the upper catalyst layer.

摘要翻译： 一种排气净化催化剂，其包括具有作为废气通道的多个电池的载体，在每个电池的载体上形成的HC吸附剂层，以及设置在每个废气通道的上游侧的上部催化剂层， HC吸附剂层和设置在HC吸附剂层上的每个废气通道的下游侧的下部催化剂层。 上催化剂层包括比下催化剂层更多的O 2存储材料，下催化剂层包括具有比上催化剂层更宽活化范围的催化剂。

公开(公告)号：US07246488B2

公开(公告)日：2007-07-24

申请号：US11183980

申请日：2005-07-19

申请人： Masahiro Takaya ,  Shinji Yamamoto ,  Hiroaki Kaneko ,  Hitoshi Onodera

发明人： Masahiro Takaya ,  Shinji Yamamoto ,  Hiroaki Kaneko ,  Hitoshi Onodera

IPC分类号： F01N3/10 ,  B01D50/00

CPC分类号： F01N3/0835 ,  B01D53/944 ,  F01N3/0814 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2370/04 ,  F01N2570/12 ,  Y02T10/22

摘要： An exhaust gas purifying system of the present invention comprises a first catalyst which contains a noble metal and reduces hydrocarbons contained in exhaust gas, and a second catalyst which is disposed downstream of the first catalyst and contains β-zeolite. In the exhaust gas purifying system, a mixed gas having an air-fuel ratio of not less than 25 is burned in an internal combustion engine, and the internal combustion engine discharges the exhaust gas having an oxygen concentration of not less than 4% continuously or intermittently.

摘要翻译： 本发明的废气净化系统包括含有贵金属并且还原废气中含有的烃的第一催化剂和位于第一催化剂下游并含有β-沸石的第二催化剂。 在废气净化系统中，在内燃机中燃烧空燃比不小于25的混合气体，内燃机连续排出氧浓度不小于4％的排气，或 间歇地

公开(公告)号：US07163661B2

公开(公告)日：2007-01-16

申请号：US10172503

申请日：2002-06-17

申请人： Shinji Yamamoto ,  Masahiro Takaya

发明人： Shinji Yamamoto ,  Masahiro Takaya

IPC分类号： B01D50/00

CPC分类号： B01D53/9454 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/101 ,  F01N3/2828 ,  F01N13/009 ,  F01N13/0093 ,  F01N2340/00 ,  F01N2510/06 ,  F01N2510/063 ,  Y02A50/2324 ,  Y02T10/22

摘要： A vehicle-mounted exhaust gas purifying system includes at least a first three-way catalyst and a plurality of HC adsorbing/purifying catalysts downstream thereof on an exhaust gas passage. Each of the HC adsorbing/purifying catalysts includes a monolithic carrier having a plurality of cells, and includes HC adsorbent layer and purifying catalyst layer, which are formed on the monolithic carrier. Moreover, the number of cells per unit areas of one HC adsorbing/purifying catalysts on an upstream side is larger than the number of cells per unit areas of another HC adsorbing/purifying catalyst on a downstream side.

摘要翻译： 车载排气净化系统至少包括第一三元催化剂和在排气通道上游的下游的多个HC吸附/净化催化剂。 每个HC吸附/净化催化剂包括具有多个电池的整体式载体，并且包括形成在整体式载体上的HC吸附剂层和净化催化剂层。 此外，上游侧的一个HC吸附/净化催化剂的单位面积的细胞数大于下游侧的另一HC吸附·净化催化剂的单位面积的细胞数。

公开(公告)号：US20050247047A1

公开(公告)日：2005-11-10

申请号：US11183980

申请日：2005-07-19

申请人： Masahiro Takaya ,  Shinji Yamamoto ,  Hiroaki Kaneko ,  Hitoshi Onodera

发明人： Masahiro Takaya ,  Shinji Yamamoto ,  Hiroaki Kaneko ,  Hitoshi Onodera

IPC分类号： F01N3/10 ,  B01D53/94 ,  B01J29/70 ,  B01J29/74 ,  B01J37/02 ,  F01N3/08 ,  F01N3/28 ,  F01N13/02 ,  F01N3/00

CPC分类号： F01N3/0835 ,  B01D53/944 ,  F01N3/0814 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2370/04 ,  F01N2570/12 ,  Y02T10/22

摘要： An exhaust gas purifying system of the present invention comprises a first catalyst which contains a noble metal and reduces hydrocarbons contained in exhaust gas, and a second catalyst which is disposed downstream of the first catalyst and contains β-zeolite. In the exhaust gas purifying system, a mixed gas having an air-fuel ratio of not less than 25 is burned in an internal combustion engine, and the internal combustion engine discharges the exhaust gas having an oxygen concentration of not less than 4% continuously or intermittently.

公开(公告)号：US06932067B2

公开(公告)日：2005-08-23

申请号：US10833049

申请日：2004-04-28

申请人： Masahiro Takaya ,  Shinji Yamamoto ,  Hiroaki Kaneko ,  Hitoshi Onodera

发明人： Masahiro Takaya ,  Shinji Yamamoto ,  Hiroaki Kaneko ,  Hitoshi Onodera

IPC分类号： F01N3/10 ,  B01D53/94 ,  B01J29/70 ,  B01J29/74 ,  B01J37/02 ,  F01N3/08 ,  F01N3/28 ,  F01N13/02 ,  F02D41/00

CPC分类号： F01N3/0835 ,  B01D53/944 ,  F01N3/0814 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2370/04 ,  F01N2570/12 ,  Y02T10/22

摘要： An exhaust gas purifying system of the present invention comprises a first catalyst which contains a noble metal and reduces hydrocarbons contained in exhaust gas, and a second catalyst which is disposed downstream of the first catalyst and contains β-zeolite. In the exhaust gas purifying system, a mixed gas having an air-fuel ratio of not less than 25 is burned in an internal combustion engine, and the internal combustion engine discharges the exhaust gas having an oxygen concentration of not less than 4% continuously or intermittently.

摘要翻译： 本发明的废气净化系统包括含有贵金属并且还原废气中含有的烃的第一催化剂和位于第一催化剂下游并含有β-沸石的第二催化剂。 在废气净化系统中，在内燃机中燃烧空燃比不小于25的混合气体，内燃机连续排出氧浓度不小于4％的排气，或 间歇地

公开(公告)号：US07112550B2

公开(公告)日：2006-09-26

申请号：US10349193

申请日：2003-01-23

申请人： Yoshiaki Hiramoto ,  Masahiro Takaya ,  Shinji Yamamoto

发明人： Yoshiaki Hiramoto ,  Masahiro Takaya ,  Shinji Yamamoto

IPC分类号： B01J29/06

CPC分类号： B01D53/945 ,  B01J23/63 ,  B01J35/002 ,  B01J37/024 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/2828 ,  F01N13/009 ,  F01N2370/04 ,  F01N2510/06 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst includes a honeycomb substrate, and HC adsorbent layers containing zeolite and having a thickness ranging from 100 μm to 500 μm. Each of the HC adsorbent layers has an approximately circular surface on a cross section perpendicular to a direction where each of the cells of the honeycomb substrate is extended, and has circumferential-direction cracks extended in a circumferential direction and radial-direction cracks extended in a radial direction. The circumferential-direction cracks and the radical-direction cracks are unconnected to each other or are connected in an extent not to cause layer exfoliation in the HC adsorbent layers. A manufacturing method of the exhaust gas purifying catalyst is to coat slurry containing zeolite on the honeycomb substrate plural times, to dry or fire the coated slurry, and to form the HC adsorbent layers.

公开(公告)号：US06729129B2

公开(公告)日：2004-05-04

申请号：US10265688

申请日：2002-10-08

申请人： Shinji Yamamoto ,  Masahiro Takaya

发明人： Shinji Yamamoto ,  Masahiro Takaya

IPC分类号： F01N300

CPC分类号： F01N3/2046 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  Y02T10/22 ,  Y02T10/26

摘要： An exhaust gas purifying system, at least including, on an exhaust gas passage for gas exhausted from an engine, a first HC-trap-catalyst arranged on an upstream side, a second HC-trap-catalyst arranged on a downstream side, and a heat capacitor arranged between the first HC-trap-catalyst and the second HC-trap-catalyst. Each of the heat capacitor and the second HC-trap-catalyst has a honeycomb carrier, and a ratio Gt/Gh2 of a geometric surface area Gt of the honeycomb carrier of the heat capacitor to a geometric surface area Gh2 of the honeycomb carrier of the second HC-trap-catalyst is in a range of 1 to 5.

摘要翻译： 一种废气净化系统，至少包括在从发动机排出的气体的排气通道上，布置在上游侧的第一HC-捕集催化剂，设置在下游侧的第二HC-捕集催化剂，以及 布置在第一HC-捕集催化剂和第二HC-捕集催化剂之间的热电容器。 热电容器和第二HC捕集催化剂各自具有蜂窝载体，并且热容器的蜂窝状载体的几何表面积Gt与所述蜂窝状载体的几何表面积Gh2的比率Gt / Gh2 第二HC陷阱催化剂在1至5的范围内。

公开(公告)号：US06518213B1

公开(公告)日：2003-02-11

申请号：US09617489

申请日：2000-07-14

申请人： Shinji Yamamoto ,  Masahiro Takaya

发明人： Shinji Yamamoto ,  Masahiro Takaya

IPC分类号： B01J29068

CPC分类号： B01J37/0246 ,  B01D53/945 ,  B01D53/9486 ,  B01D2253/342 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/20715 ,  B01J23/58 ,  B01J37/0244 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst comprises a hydrocarbon adsorbent layer and a metal-based catalyst layer on a monolithic support. The catalyst contains zeolite in the underlying hydrocarbon adsorbent layer and contains noble metals such as palladium, platinum, rhodium, etc. in the overlying metal-based catalyst layer. Also, both layers contain an alkaline metal, etc., and a weight ratio of the alkaline metal, etc. contained in the metal-based catalyst layer to the alkaline metal, etc. contained in the hydrocarbon adsorbent layer is set to 60:40 to 99:1. A process for preparing the above catalyst comprises forming the metal-based catalyst by coating slurry. The slurry contains water insoluble or water hardly-soluble alkaline metal and/or alkaline earth metal compound.

摘要翻译： 废气净化催化剂包括烃吸附剂层和在整体式载体上的金属基催化剂层。 催化剂在下面的烃吸附剂层中含有沸石，并且在上覆的金属基催化剂层中含有贵金属如钯，铂，铑等。 此外，两层都含有碱金属等，并且包含在烃类吸附剂层中的金属类催化剂层中所含的碱金属等与碱金属等的重量比设定为60:40 至99：1。 制备上述催化剂的方法包括通过涂布浆料形成金属基催化剂。 该浆液含有不溶于水或难溶于水的碱金属和/或碱土金属化合物。

公开(公告)号：US06589901B2

公开(公告)日：2003-07-08

申请号：US09979302

申请日：2001-11-21

申请人： Shinji Yamamoto ,  Masahiro Takaya

发明人： Shinji Yamamoto ,  Masahiro Takaya

IPC分类号： B01J2906

CPC分类号： B01D53/945 ,  B01D53/9486 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/202 ,  B01D2255/204 ,  B01J23/56 ,  B01J23/63 ,  B01J35/0013 ,  B01J35/023 ,  B01J37/0244 ,  B01J37/0246 ,  B01J2229/42 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst for exhaust gas discharged from an automotive internal combustion engine. The catalyst comprises a substrate over which a hydrocarbons adsorbing material layer is formed as a lower layer to absorb hydrocarbons contained in exhaust gas. The hydrocarbons adsorbing material layer contains zeolite and colloidal silica which has undergone firing. The colloidal silica is in a chain-like form and/or a spherical form before and after the firing. Additionally, a catalyst component layer is formed as an upper layer over the hydrocarbons adsorbing material layer. The catalyst component layer contains a catalyst metal.