公开(公告)号：US20080004174A1

公开(公告)日：2008-01-03

申请号：US11808888

申请日：2007-06-13

申请人： Yusuke Itoh ,  Toshihiro Takada ,  Tatsuji Mizuno ,  Yoshiharu Miyake ,  Yoshihide Segawa

发明人： Yusuke Itoh ,  Toshihiro Takada ,  Tatsuji Mizuno ,  Yoshiharu Miyake ,  Yoshihide Segawa

IPC分类号： B01J32/00 ,  B32B3/12

CPC分类号： B01J37/0215 ,  B01J23/63 ,  B01J35/04 ,  B01J37/0242 ,  F01N3/0222 ,  Y02T10/20 ,  Y10T428/24149

摘要： A honeycomb-shaped substrate for catalyst is made from ceramic, has a straight-flow structure, and includes cellular walls exhibiting pore volumes, which differ partially, and a large number of cellular passages demarcated by the cellular walls. A catalyst for purifying exhaust gases is produced by providing the cellular walls of the honeycomb-shaped substrate with a catalytic coating layer.

摘要翻译： 用于催化剂的蜂窝状基材由陶瓷制成，具有直流结构，并且包括表现出部分不同的孔体积的细胞壁和由细胞壁划分的大量细胞通道。 用于净化废气的催化剂是通过提供蜂窝状基材的多孔壁来制备催化涂层的。

公开(公告)号：US5443803A

公开(公告)日：1995-08-22

申请号：US925669

申请日：1992-08-07

申请人： Tatsuji Mizuno ,  Shinichi Takeshima ,  Kazuhiko Sekizawa ,  Senshi Kasahara

发明人： Tatsuji Mizuno ,  Shinichi Takeshima ,  Kazuhiko Sekizawa ,  Senshi Kasahara

IPC分类号： B01D53/94 ,  B01J29/072 ,  B01J29/72 ,  B01J29/80 ,  B01J35/00 ,  B01J35/04

CPC分类号： B01D53/945 ,  B01J29/072 ,  B01J35/0006 ,  B01J35/04 ,  Y02T10/22

摘要： A catalyst for purifying an exhaust gas comprising a zeolite catalyst ion exchanged with cobalt and at least one alkaline earth metal and a zeolite catalyst ion-exchanged with copper, provided on an inlet side of an exhaust gas stream and an outlet side of the exhaust gas respectively, or randomly present in a mixed state.

摘要翻译： 一种废气净化用催化剂，其特征在于，在废气流的入口侧和废气的出口侧设置有与钴和至少一种碱土金属交换的沸石催化剂离子和与铜离子交换的沸石催化剂 或者以混合状态随机存在。

公开(公告)号：US07504146B2

公开(公告)日：2009-03-17

申请号：US11641888

申请日：2006-12-20

申请人： Yoshiyasu Ando ,  Toshiharu Kondo ,  Tatsuji Mizuno

发明人： Yoshiyasu Ando ,  Toshiharu Kondo ,  Tatsuji Mizuno

IPC分类号： B32B3/12

CPC分类号： C04B38/0009 ,  C04B2111/00793 ,  Y10T428/24149 ,  Y10T428/24157 ,  Y10T428/24165 ,  C04B35/195

摘要： A hexagonal cell honeycomb structure body has a plurality of hexagonal cells. Each hexagonal cell is surrounded by six cell walls in a hexagonal lattice shape. A R-shaped corner part of an approximate circular-arc shape is alternately formed at interior angle parts of the six cell walls forming each hexagonal cell. The three R-shaped corner parts are at the alternate internal corners of each hexagonal cell observed from a cross section of the axis direction of the hexagonal cell honeycomb structure body. A radius of curvature of each R-shaped corner part is larger than that of the interior corner part having no R-shaped corner part. The minimum radius of curvature of the R-shaped corner part is 2.8 to 5 times of a thickness of each hexagonal cell wall, namely within a range of 0.25 mm to 0.45 mm.

摘要翻译： 六边形单元蜂窝结构体具有多个六边形单元。 每个六角形单元被六角格子形状的六个单元格壁围绕。 在形成每个六边形单元的六个单元壁的内角部分交替形成大致圆弧形的R形角部。 三角形的角部位于从六边形单元状蜂窝结构体的轴方向的截面观察的每个六边形单元的交替的内角。 每个R形角部的曲率半径大于没有R形角部的内角部的曲率半径。 R形角部的最小曲率半径是每个六边形孔壁的厚度的2.8〜5倍，即在0.25mm〜0.45mm的范围内。

公开(公告)号：US06756022B2

公开(公告)日：2004-06-29

申请号：US09940591

申请日：2001-08-29

申请人： Takenobu Sakai ,  Tatsuji Mizuno ,  Hiroshi Suzuki

发明人： Takenobu Sakai ,  Tatsuji Mizuno ,  Hiroshi Suzuki

IPC分类号： C10G1900

CPC分类号： F02M33/00 ,  C10G27/00 ,  C10G32/00 ,  F02M37/22

摘要： There is provided a desulphurization apparatus to be mounted in automobiles, which is arranged between a fuel tank and an injector of an engine, the apparatus comprising a combination of a sulfur-containing compound adsorbent for adsorbing and concentrating the sulfur-containing compound and a sulfur-containing compound oxidizing agent or oxidation catalyst for oxidizing the adsorbed sulfur-containing compound, the apparatus further comprising a means for recovering and removing the resulting sulfur-containing oxide. According to this apparatus, the quantity of the particulate matter in an exhaust gas is reduced by half and the durability of the catalyst for removing a nitrogen oxide is improved by a factor of about two.

摘要翻译： 提供了一种安装在汽车中的脱硫装置，该装置设置在燃料箱和发动机的喷射器之间，该装置包括用于吸附和浓缩含硫化合物的硫化合物吸附剂和硫 的含氧化合物或用于氧化吸附的含硫化合物的氧化催化剂，该装置还包括用于回收和除去所得含硫氧化物的装置。 根据该装置，排气中的颗粒物质的量减少一半，并且用于除去氮氧化物的催化剂的耐久性提高约二倍。

公开(公告)号：US06684627B2

公开(公告)日：2004-02-03

申请号：US09860481

申请日：2001-05-21

申请人： Tatsuji Mizuno ,  Shinji Tsuji ,  Masahiko Takeuchi ,  Kenji Kato ,  Takaaki Ito ,  Yoshitsugu Ogura ,  Tetsuo Kawamura ,  Mareo Kimura

发明人： Tatsuji Mizuno ,  Shinji Tsuji ,  Masahiko Takeuchi ,  Kenji Kato ,  Takaaki Ito ,  Yoshitsugu Ogura ,  Tetsuo Kawamura ,  Mareo Kimura

IPC分类号： F01N300

CPC分类号： B01D53/9454 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/206 ,  F01N13/009 ,  F01N13/011 ,  F01N2570/04 ,  F01N2610/01 ,  F02B2075/125 ,  F02M26/36 ,  F02M26/53 ,  Y02T10/22

摘要： The present invention is a method of solidifying sulfur component being the cause of “SOx poisoning” by use of a sulfur solidifier. The solidifier includes a metal element having a function of oxidizing the sulfur component and a basic metal element. And the solidifier solidifies sulfur component before exhaust gas flows into an NOx-occluding reduction-type exhaust purifying catalyst located on an exhaust path. Since the foregoing sulfur solidifier includes the above metal element and the basic metal element, it can effectively solidify the sulfur component which are the cause of the SOx poisoning, and ensure improvement in purification performance.

摘要翻译： 本发明是通过使用硫磺固化剂固化成为“SOx中毒”的原因的硫成分的方法。 固化剂包括具有氧化硫成分和碱性金属元素的功能的金属元素。 并且在废气流入位于排气路径上的NOx吸留还原型排气净化催化剂中之前，固化器固化硫成分。 由于上述硫磺固化剂含有上述金属元素和碱性金属元素，所以能够有效地固化作为SOx中毒的原因的硫成分，能够确保净化性能的提高。

公开(公告)号：US5934072A

公开(公告)日：1999-08-10

申请号：US19552

申请日：1998-02-06

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Tatsuji Mizuno

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Tatsuji Mizuno

IPC分类号： B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N3/24 ,  F02B1/04 ,  F02B23/10 ,  F02B37/18 ,  F02B75/12 ,  F02D9/04 ,  F02D21/08 ,  F02D41/02 ,  F02D41/34 ,  F02D41/40 ,  F02D43/00 ,  F02M25/07

CPC分类号： F02D41/402 ,  B01D53/8696 ,  B01D53/9481 ,  B01D53/9486 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/0871 ,  F02B37/18 ,  F02D41/005 ,  F02D41/027 ,  F02D9/04 ,  B01D2251/208 ,  B01D2255/102 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2258/012 ,  B01D53/9418 ,  F01N2260/14 ,  F01N2570/12 ,  F01N2610/03 ,  F02B1/04 ,  F02B2075/125 ,  F02B23/101 ,  F02D41/0275 ,  F02M26/15 ,  Y02T10/123 ,  Y02T10/144 ,  Y02T10/24 ,  Y02T10/44 ,  Y02T10/47

摘要： An exhaust gas purifying device for an engine comprises an exhaust gas purifying catalyst arranged in the exhaust passage. The catalyst is capable of reducing NO.sub.X in the catalyst in the oxidizing atmosphere, and comprises a reducing agent adsorbent adsorbing a reducing agent in the inflowing exhaust gas therein when the pressure in the adsorbent becomes higher, and desorbing the adsorbed reducing agent therefrom when the pressure in the adsorbent becomes lower. An exhaust gas control valve is disposed in the exhaust passage downstream of the catalyst. When both the engine load and the engine speed are low, the opening of the valve is made smaller to increase the pressure in the catalyst. At this time, hydrocarbon is fed to the catalyst, and is then adsorbed in the catalyst. When the engine load or the engine speed becomes high, or the cumulative amount of hydrocarbon fed to the catalyst becomes larger than a predetermined amount, the valve is made fully open to reduce the pressure in the catalyst. At this time, the adsorbed hydrocarbon is desorbed from the catalyst, and then reduces NO.sub.X in the catalyst.

摘要翻译： 用于发动机的废气净化装置包括布置在排气通道中的排气净化催化剂。 催化剂能够在氧化气氛中还原催化剂中的NO x，并且当吸附剂中的压力变高时，还含有吸附还原剂的还原剂吸附在其中的废气中，并且当压力 在吸附剂中变得更低。 废气控制阀设置在催化剂下游的排气通道中。 当发动机负荷和发动机转速都低时，阀的开度变小以增加催化剂中的压力。 此时，将烃加入到催化剂中，然后将其吸附在催化剂中。 当发动机负荷或发动机转速变高或供给催化剂的烃的累积量变得大于预定量时，阀完全打开以降低催化剂中的压力。 此时，吸附的烃从催化剂中脱附，然后还原催化剂中的NO x。

公开(公告)号：US5850735A

公开(公告)日：1998-12-22

申请号：US711597

申请日：1996-09-10

申请人： Yasushi Araki ,  Tatsuji Mizuno ,  Toshiaki Tanaka

发明人： Yasushi Araki ,  Tatsuji Mizuno ,  Toshiaki Tanaka

IPC分类号： B01D53/50 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F02D41/02 ,  F02D41/38 ,  F01N3/02 ,  F01N3/36

CPC分类号： F02D41/3827 ,  B01D53/508 ,  B01D53/9481 ,  B01D53/9495 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/2882 ,  F02D41/028 ,  B01D2257/302 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2570/04 ,  F01N2610/03 ,  F01N2900/1612 ,  F02D2200/0404 ,  F02D41/1446

摘要： According to the present invention, SO.sub.X in the exhaust gas of an internal combustion engine is absorbed by a sulfate absorbent which absorbs SO.sub.X in the exhaust gas when the temperature is lower than a releasing temperature and releases the absorbed SO.sub.X when the temperature becomes higher than the releasing temperature. When the exhaust gas temperature increases during the operation of the engine and reaches the releasing temperature, the temperature of the exhaust gas flowing into the sulfate absorbent is further raised to a predetermined temperature by supplying fuel to the exhaust gas passage upstream of the sulfate absorbent. The ratio of SO.sub.3 in the SO.sub.X mixture released from the sulfate absorbent changes in accordance with the temperature, and takes the highest value at a certain temperature (i.e., a peak temperature). Therefore, when the exhaust gas temperature is raised above the peak temperature, the ratio of SO.sub.3 in the SO.sub.X mixture released from the sulfate absorbent decreases as the temperature increases. In the present invention, the above-noted predetermined temperature is selected in such a manner that the ratio of SO.sub.3 at this predetermined temperature becomes lower than the ratio of SO.sub.3 at the releasing temperature. Therefore, when SO.sub.X is released from the sulfate absorbent, the amount of SO.sub.3, i.e., the amount of particulate matter released into the atmosphere can be maintained at a low level.

摘要翻译： 根据本发明，内燃机废气中的SO x被吸收在温度低于脱模温度时吸收废气中的SO x的硫酸盐吸收剂，并且当温度变得高于 释放温度。 当发动机运转时排气温度升高并达到释放温度时，通过向硫酸吸收剂上游的排气通道供给燃料，进一步将流入硫酸盐吸收剂的废气升温至规定温度。 从硫酸盐吸收剂释放的SO x混合物中的SO 3的比例根据温度而变化，并且在一定温度（即峰值温度）下获得最高值。 因此，当废气温度升高到高于峰值温度时，从硫酸盐吸收剂释放的SO x混合物中的SO 3比随温度升高而降低。 在本发明中，以这样的方式选择上述预定温度，使得在该预定温度下的SO 3的比例低于在释放温度下的SO 3的比例。 因此，当SOX从硫酸盐吸收剂中释放出来时，SO 3的量，即释放到大气中的颗粒物质的量可以保持在较低水平。