公开(公告)号：US07001442B2

公开(公告)日：2006-02-21

申请号：US10461341

申请日：2003-06-16

申请人： Koichiro Nakatani ,  Haruo Ooishi ,  Shuji Watanabe ,  Shinya Hirota

发明人： Koichiro Nakatani ,  Haruo Ooishi ,  Shuji Watanabe ,  Shinya Hirota

IPC分类号： B01D46/00

CPC分类号： B01D46/2429 ,  B01D46/0001 ,  B01D46/2451 ,  B01D46/2459 ,  B01D46/247 ,  B01D46/2474 ,  B01D2046/2477 ,  B01D2046/2481 ,  B01D2046/2496 ,  F01N3/0222 ,  Y02T10/20 ,  Y10S55/05 ,  Y10S55/10 ,  Y10S55/30 ,  Y10S264/48 ,  Y10T428/24149 ,  Y10T428/24165

摘要： There is provided a particulate filter for trapping particulates contained in an exhaust gas discharged from a combustion chamber of an engine, comprising a plurality of exhaust gas flow passages each formed by three porous partitions extending substantially parallel with each other, each of the exhaust gas flow passages having a triangular cross section, wherein the partitions defining one of the adjacent exhaust gas flow passages are deformed at one end area of the filter so that the partitions at one end area of the filter approach each other toward one of the ends of the filter, the deformed portions of the partitions are connected to each other at their ends, thereby an opening of one of the adjacent exhaust gas flow passages is at least partially closed, the partitions defining the other exhaust gas flow passage are deformed at the other end area of the filter so that the partitions at the other end area of the filter approach each other toward the other end of the filter, and the deformed portions of the partitions are connected to each other at their ends, thereby an opening of the other exhaust gas flow passage is at least partially closed.

公开(公告)号：US06988360B2

公开(公告)日：2006-01-24

申请号：US10620342

申请日：2003-07-17

申请人： Koichi Kimura ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Yasuaki Nakano ,  Koichiro Nakatani ,  Akira Mikami

发明人： Koichi Kimura ,  Shinya Hirota ,  Yoshimitsu Henda ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Shunsuke Toshioka ,  Yasuaki Nakano ,  Koichiro Nakatani ,  Akira Mikami

IPC分类号： F01N3/00

CPC分类号： F01N3/0821 ,  F01N3/0233 ,  F01N3/031 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N13/02 ,  F01N2410/00 ,  F01N2410/12 ,  F01N2610/03

摘要： An exhaust emission purification device comprises a sulfur component holding agent arranged on the exhaust path of an internal combustion engine for holding a sulfur component, a NOx holding agent arranged downstream of the sulfur component holding agent in the exhaust gas for holding NOx and the sulfur components when the air-fuel ratio of the exhaust gas flowing thereinto is lean, and a reducing agent adding unit for adding a reducing agent to the exhaust gas flowing into the NOx holding agent. The concentration of the sulfur component contained in the reducing agent added by the reducing agent adding unit is lower than the concentration of at least the sulfur component contained in the fuel supplied to the combustion chamber of the internal combustion engine. Thus, the sulfur poisoning of the exhaust emission purifier can be avoided while at the same time reducing the fuel consumption rate.

摘要翻译： 排气净化装置，其特征在于，具备配置在所述硫成分保持用内燃机的排气路径上的硫成分保持剂，位于所述排气中的硫成分保持剂的下游的NO x 用于保持NO x的气体和流入其中的排气的空燃比变少的硫成分;还原剂添加单元，用于向流入NO的废气中添加还原剂 保持剂。 由还原剂添加单元添加的还原剂中所含的硫成分的浓度低于供给到内燃机的燃烧室的燃料中至少含有的硫成分的浓度。 因此，可以避免排气净化器的硫中毒，同时降低燃料消耗率。

公开(公告)号：US06769245B2

公开(公告)日：2004-08-03

申请号：US09958575

申请日：2001-10-11

申请人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Koichi Kimura ,  Koichiro Nakatani

发明人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Koichi Kimura ,  Koichiro Nakatani

IPC分类号： F01N300

CPC分类号： F01N3/0842 ,  F01N3/021 ,  F01N3/023 ,  F01N3/035 ,  F01N3/0821 ,  F01N2570/16 ,  F02B37/00 ,  F02D41/029 ,  F02D41/1467 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/23

摘要： A particulate filter (22) carrying an active oxygen release agent which takes in oxygen and holds oxygen when excess oxygen is present in the surroundings and releases the held oxygen in the form of active oxygen when the concentration of oxygen in the surroundings falls is arranged in an exhaust passage of an engine. The air-fuel ratio of the exhaust gas flowing into the particulate filter (22) is normally maintained lean and is occasionally switched to rich temporarily. When the air-fuel ratio of the exhaust gas is switched to rich, an oxidation reaction of the particulate on the particulate filter is promoted by the active oxygen released from the active oxygen release agent. Due to this, the particulate in the exhaust gas is continuously removed by oxidation on the particulate filter (22) without emitting a luminous flame.

摘要翻译： 一种带有活性氧释放剂的微粒过滤器（22），其在周围存在过量的氧气时吸氧并保持氧气，并且当环境中的氧浓度下降时，以活性氧的形式释放保持的氧气 发动机的排气通道。 流入微粒过滤器（22）的废气的空燃比通常保持稀薄，有时候暂时转为浓。 当排气的空燃比变为浓时，由活性氧释放剂释放的活性氧促进颗粒过滤器上的颗粒的氧化反应。 由此，废气中的颗粒通过在颗粒过滤器（22）上的氧化而不发生发光的火焰而被连续除去。

公开(公告)号：US06644022B2

公开(公告)日：2003-11-11

申请号：US09979064

申请日：2001-11-16

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Takamitsu Asanuma ,  Koichiro Nakatani ,  Koichi Kimura

IPC分类号： F01N300

CPC分类号： F01N3/0233 ,  F01N3/023 ,  F01N3/0235 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N2260/14 ,  F01N2290/00 ,  F01N2330/06 ,  F01N2410/08 ,  F01N2510/06 ,  F01N2570/16 ,  F02B37/00 ,  F02M26/05 ,  F02M26/28

摘要： A particulate filter (22) is arranged in an exhaust passage of an engine, while an exhaust throttle valve (45) is arranged in the exhaust passage downstream of the particulate filter (22). The exhaust throttle valve (45) is fully closed once, then fully opened cyclically. At that time, the flow velocity of the exhaust gas is increased for just an instant in a pulse-like manner, whereby masses of particulate are separated from the particulate filter 22 and discharged.

公开(公告)号：US06594991B2

公开(公告)日：2003-07-22

申请号：US09817172

申请日：2001-03-27

申请人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Koichi Kimura ,  Koichiro Nakatani

发明人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Koichi Kimura ,  Koichiro Nakatani

IPC分类号： F01N300

CPC分类号： B01D46/0067 ,  B01D46/0036 ,  B01D46/0039 ,  B01D46/0041 ,  B01D46/24 ,  B01D46/2418 ,  B01D46/46 ,  B01D53/9431 ,  B01D2046/2492 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/023 ,  F01N3/0233 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/031 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N2410/00 ,  F01N2570/16 ,  F01N2610/03 ,  F02B23/06 ,  F02B23/0621 ,  F02B23/0669 ,  F02B23/0672 ,  F02B37/00 ,  F02F2001/247 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  F02M26/26 ,  F02M26/28 ,  F02M26/33 ,  Y02T10/125

摘要： An exhaust purifying method and apparatus of an internal combustion engine are provided with an exhaust switch valve for switching a flow of exhaust gas flowing into an exhaust filter. By switching the exhaust switch valve, the exhaust gas is fed from one side and the other side of the filter, thereby stirring the soot (particulates) in the exhaust gas deposited on the filter having a NOx absorbent and an active-oxygen discharging agent supported thereon. Thus, the soot in the exhaust gas is continuously burned. Moreover, the switching of the exhaust switch valve and the rich spike are inhibited from being conducted simultaneously. In the case where the rich spike is conducted in order to discharge and reduce NOx absorbed in the NOx absorbent, the exhaust gas containing a large amount of HC and CO can be prevented from being discharged into the atmosphere without being purified.

摘要翻译： 内燃机的排气净化方法和装置设置有用于切换流入排气过滤器的废气流的排气切换阀。 通过切换排气开关阀，排气从过滤器的一侧和另一侧进料，从而搅拌沉积在具有NOx吸收剂的过滤器上的废气中的烟灰（微粒）和负载的活性氧排放剂 上。 因此，排气中的烟灰不断燃烧。 此外，排气开关阀和丰富尖峰的切换被抑制同时进行。 为了排出和减少吸收在NOx吸收剂中的NOx而进行浓穗的处理，可以防止含有大量HC，CO的废气排出到大气中而不被净化。

公开(公告)号：US06546721B2

公开(公告)日：2003-04-15

申请号：US09834894

申请日：2001-04-16

申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Koichiro Nakatani ,  Koichi Kimura ,  Takamitsu Asanuma

发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Kazuhiro Itoh ,  Koichiro Nakatani ,  Koichi Kimura ,  Takamitsu Asanuma

IPC分类号： F01N300

CPC分类号： F01N3/0842 ,  F01N3/0821 ,  F01N2570/14 ,  Y02A50/2344

摘要： An engine comprising a particulate filter which is arranged in the exhaust passage and has a function of absorbing NOx, where the amount of discharged particulate discharged from the combustion chamber per unit time is made smaller than the amount of particulate removable by oxidation per unit time without emitting a luminous flame on the particulate filter and where the temperature of the particulate filter is maintained in a temperature range where the NOx absorption rate becomes more than a certain value.

摘要翻译： 一种发动机，其包括布置在排气通道中并且具有吸收NOx的功能的颗粒过滤器，其中使得每单位时间从燃烧室排出的排出颗粒的量小于每单位时间通过氧化除去的颗粒的数量，而没有 在颗粒过滤器上发出发光的火焰，并且其中微粒过滤器的温度保持在NOx吸收速率变得超过一定值的温度范围内。

公开(公告)号：US5083147A

公开(公告)日：1992-01-21

申请号：US376134

申请日：1989-07-06

申请人： Koichiro Nakatani

发明人： Koichiro Nakatani

IPC分类号： F16M11/12

CPC分类号： F16M11/2014 ,  F16M11/10

摘要： A panning head for a photographic tripod has an improved horizontal pan adjustment for setting the force required to turn the pan head.

摘要翻译： 用于摄影三脚架的平移头具有改进的水平平底锅调节，用于设定转动摇头所需的力。