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公开(公告)号：JP2008280949A
公开(公告)日：2008-11-20
申请号：JP2007126902
申请日：2007-05-11
Applicant: Hino Motors Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日野自動車株式会社
Inventor： ITO KAZUHIRO , ODA TOMIHISA , ITO TAKEKAZU , TAUCHI YUTAKA , TOSHIOKA TOSHISUKE , YOKOTA HARUYUKI , SHIMIZU TAKAHARU , SATO SHINYA , NINOMIYA HIROYUKI , YABE MASAHIKO
CPC classification number: Y02C20/10
Abstract: PROBLEM TO BE SOLVED: To calculate a urea supply amount while considering the adsorption and release of NOx on and from a NOx adsorption catalyst. SOLUTION: This exhaust emission control device comprises a NOx selective reduction catalyst 15 arranged in an engine exhaust passage, and the NOx adsorption catalyst 12 arranged in the engine exhaust passage on the upstream side of the NOx selective reduction catalyst 15. It calculates the amount of NOx to be adsorbed on the NOx adsorption catalyst 12, and increases a urea supply amount in proportion to an increase in the amount of NOx adsorbed on the NOx adsorption catalyst 12. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：考虑在NO x吸附催化剂上和从NOx吸附催化剂上吸附和释放NOx时，计算尿素供给量。 解决方案：该废气排放控制装置包括布置在发动机排气通道中的NOx选择还原催化剂15和排列在NOx选择还原催化剂15的上游侧的发动机排气通道中的NOx吸附催化剂12.它计算 吸附在NOx吸附催化剂12上的NOx的量，并且与NOx吸附催化剂12上吸附的NOx的量的增加成比例地增加尿素供给量。版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2007255295A
公开(公告)日：2007-10-04
申请号：JP2006080607
申请日：2006-03-23
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： FURUKAWA TAKATOSHI , SATO SHINYA , YOSHITOMI KAZUNOBU
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device removing particulate and performing all processing without depending on a filter. SOLUTION: This exhaust emission control device is provided with a first exhaust passage 1 which serves also as a ground electrode and into which exhaust gas G is fed from an engine, a charging electrode 2 arranged in the first exhaust passage 1, a first power supply 3 charging particulate by applying negative polarity DC high voltage between the first exhaust passage 1 and the charging electrode 2, a second exhaust passage 4 which serves also as a ground electrode and is connected to the downstream side of the first exhaust passage 1, a dielectric 5 which covers the inner side of the second exhaust passage 4 and collects particulate, processing electrodes 6, 7 provided on the surface of the dielectric 5, a second power supply 8 burning particulate by applying positive polarity AC high voltage between the second exhaust passage 4 and the processing electrodes 6, 7, and a third exhaust passage 9 sending exhaust gas G from the second exhaust passage 4. A cyclone separator is formed by the exhaust passages 1, 4 and 9. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供一种废气排放控制装置，其除去颗粒物并且不依赖于过滤器进行所有处理。 解决方案：该废气排放控制装置设置有也用作接地电极的第一排气通道1，并且从发动机供给排气G，配置在第一排气通路1中的充电电极2， 第一电源3通过在第一排气通道1和充电电极2之间施加负极性DC高电压来充电微粒，第二排气通道4，其也用作接地电极并连接到第一排气通道1的下游侧 覆盖第二排气通路4的内侧并收集设置在电介质5的表面上的颗粒状的处理电极6,7的电介质5，第二电源8，通过在第二排气通路4的第二 排气通道4和处理电极6,7以及从第二排气通道4排出废气G的第三排气通道9.旋风分离器由 排气通道1,4和9.版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2006233945A
公开(公告)日：2006-09-07
申请号：JP2005053988
申请日：2005-02-28
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： SATO SHINYA
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device providing high NOx reducing rate from a relatively low temperature zone. SOLUTION: An NOx occlusion reduction catalyst 4 is installed in a middle of an exhaust pipe 3. The NOx occlusion reduction catalyst 4 is carried on a wall surface of a face side of a porous thin wall 5a of a catalyst carrier 5 by using the wall through type catalyst carrier 5 making exhaust gas 2 always flow with passing through the porous thin wall and rear metal zeolite catalyst 6 (HC occlusion oxidation catalyst) having both of HC occlusion function and catalyst function promoting partial occlusion of HC is carried on a wall surface on a back side in relation to an exhaust emission control device equipped with a fuel adding means 12 adding light oil 7 (fuel) as reducing agent in exhaust gas 2 in an upstream thereof. A first flow passage state making exhaust gas 2 from the engine 1 flow from the face side of the porous thin wall to the back side thereof and a second flow passage state making exhaust gas 2 flow from the back side to the face side are suitably changed over by flow passage change over means (valve 15, 16, 17, 18). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种从较低温度区域提供高NOx还原率的废气排放控制装置。 解决方案：将NOx吸留还原催化剂4安装在排气管3的中间。NOx吸留还原催化剂4通过在催化剂载体5的多孔薄壁5a的表面的壁表面上承载 使用通过型催化剂载体5使废气2始终流过多孔薄壁，并且具有促进HC部分闭塞的HC吸留功能和促进部分闭塞的催化剂功能的后金属沸石催化剂6（HC阻塞氧化催化剂）进行 相对于具有燃料添加装置12的废气排放控制装置的后侧的壁面，该排气排放控制装置12在排气2的上游侧添加作为还原剂的轻油7（燃料）。 使来自发动机1的排气2的第一流路状态从多孔薄壁的表面侧向其后侧流动，从而使排气2从背侧向正面侧流动的第二流路状态适当变更 通过流动通过装置（阀15,16,17,18）改变。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006057578A
公开(公告)日：2006-03-02
申请号：JP2004242292
申请日：2004-08-23
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： SATO SHINYA
CPC classification number: F01N3/2066 , B01D53/9431 , B01D2251/2067 , F01N13/0097 , F01N2510/063 , F01N2610/02 , Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To provide a high NOx reduction rate in a wide exhaust temperature range by widening the active temperature range of a selective reduction catalyst more than a conventional area.
SOLUTION: In the exhaust emission control device provided with the selective reduction catalyst to promote reaction selectively so as to enable NOx to selectively react with ammonia even under oxygen coexistence in the middle of an exhaust pipe 9 and performs reduction purification of NOx by adding urea water 16 as a reducing agent to the upstream side of the selective reduction catalyst by urea water adding means (such as a urea water tank 13, a urea water feeding pipe, a feed pump 15, and an injection nozzle 17), the selective reduction catalyst consists of two catalysts of a high temperature active type selective catalyst 11 and a low temperature active type selective catalyst 12 which are different in the active temperature range. The two selective reduction catalysts are arranged in series such that the high temperature active type selective reduction catalyst 11 relatively higher in the active temperature range is arranged at a front end and the low temperature active type selective reduction catalyst 12 relatively lower in the active temperature range is arranged at the rear stage.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：通过将选择性还原催化剂的活性温度范围扩大到比常规区域更大的方式，在宽的排气温度范围内提供高NOx还原速率。 解决方案：在具有选择还原催化剂的废气排放控制装置中，选择性地促进反应，以便即使在排气管9的中间的氧共存下，NOx也能够与氨选择性反应，并且通过以下方式进行NOx的还原净化 通过尿素水添加装置（例如尿素水箱13，尿素给水管，进料泵15和喷嘴17）将尿素水16作为还原剂添加到选择还原催化剂的上游侧， 选择还原催化剂由两种活性温度范围不同的高温活性型选择催化剂11和低温活性型选择催化剂12的催化剂组成。 两种选择还原催化剂串联布置，使得在活性温度范围内相对较高的高温活性型选择还原催化剂11配置在前端，低温活性型选择还原催化剂12在有效温度范围内相对较低 安排在后台。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JPH11123330A
公开(公告)日：1999-05-11
申请号：JP10923598
申请日：1998-04-20
Applicant: HINO MOTORS LTD
Inventor： HOSOYA MITSURU , SATO SHINYA
IPC: B01D53/94 , B01J21/10 , B01J23/10 , B01J23/38 , B01J23/70 , B01J23/745 , B01J23/75 , B01J29/40 , B01J35/04
Abstract: PROBLEM TO BE SOLVED: To provide a novel catalyst which can improve the efficiency of a catalyst metal to reduce NOx in the exhaust gas of an internal combustion engine. SOLUTION: In the catalyst, at least one kind of element selected from the group consisting of iridium, platinum, rhodium, palladium, silver, cobalt, copper, nickel, iron, magnesium, and lanthanoid, in catalytically active quantities, is carried on and/or in carrier particles comprising metal oxides and/or composite oxides in an evenly dispersed state.
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Patent Agency Ranking
公开(公告)号：JPH10128118A
公开(公告)日：1998-05-19
申请号：JP20408097
申请日：1997-07-30
Applicant: HINO MOTORS LTD
Inventor： SATO SHINYA , TOMONO YASUYUKI
IPC: B01D53/94 , B01J21/06 , B01J23/02 , B01J23/10 , B01J23/34 , B01J23/70 , B01J23/755 , B01J23/76 , B01J23/78 , B01J23/889 , B01J37/03
Abstract: PROBLEM TO BE SOLVED: To obtain a catalyst capable of removing nitrogen oxides over a wide temp. region. SOLUTION: A nitrogen oxide removing catalyst is composed of multiple oxide of two or more kinds of metal elements selected from a group consisting of Al, Mn, Zr, Cu, Ni, Fe, Co, La, Sm, Ce, Sr, Nb, Eu, Tb, Dy, Yb, Pr and Gd. Nitrates, sulfates or carbonates of metal elements are prepared and these salts are mixed so that the ration of the selected elements becomes a ratio forming the objective multiple oxide and the pH of the mixture is adjusted to 6-8 by aq. ammonia or urea (heating) to form a coprecipitate of multiple oxide of two or more kinds of selected metal elements and this coprecipitate is dried and further baked to produce the catalyst.
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公开(公告)号：JPH0796195A
公开(公告)日：1995-04-11
申请号：JP26567093
申请日：1993-09-29
Applicant: HINO MOTORS LTD
Inventor： HARUFUJI SEIJI , SATO SHINYA
IPC: B01D53/86 , B01D53/94 , B01J29/064
Abstract: PURPOSE:To obtain an exhaust gas purification catalyst having high NOx removal ability in a wide temp. range, reducing the amt. of NOx contained in exhaust gas from an automobile and suppressing the occurrence of environmental pollution by adding a perovskite type compd. to a proton exchanged zeolite. CONSTITUTION:Powder of a proton exchanged zeolite is mixed with powder of a perovskite type compd. contg. La and Co prepd. from an alkoxide soln. to produce the objective exhaust gas purification catalyst having enhanced NOx removal ability in the high temp. range of about 400-600 deg.C and ensuring high NOx removal ability in a wide temp. range.
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公开(公告)号：JP2012082727A
公开(公告)日：2012-04-26
申请号：JP2010228329
申请日：2010-10-08
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： SATO SHINYA , HIRABAYASHI HIROSHI , HAYASHIZAKI KEIICHI , HOSOYA MITSURU
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To improve reduction efficiency of NOx in a high temperature area of exhaust gas.SOLUTION: A first selective reduction type catalyst 21 made of a copper-based catalyst, an iron-based catalyst, a zinc-based catalyst or a cobalt-based catalyst, is arranged in an exhaust pipe 16 of an engine 11, and a second selective reduction type catalyst 22 made of a silver-based catalyst is arranged in the exhaust pipe 16 on the exhaust gas downstream side of the first selective reduction type catalyst 21. A liquid injection nozzle 26 capable of injecting a hydrocarbon-based liquid 24 toward the first selective reduction type catalyst 21, is arranged in the exhaust pipe 16 on the exhaust gas upstream side of the first selective reduction type catalyst 21, and a hydrocarbon-based liquid supply means 27 is constituted so as to supply the liquid 24 to the liquid injection nozzle 26 via a liquid injection quantity adjusting valve 31. A controller 38 is constituted so as to control the liquid injection quantity adjusting valve 31 based on detection output of a first temperature sensor 41 for detecting the temperature of exhaust gas related to the first selective reduction type catalyst 21.
Abstract translation: 要解决的问题：提高废气的高温区域中的NOx的还原效率。 解决方案：在发动机11的排气管16中设置由铜基催化剂，铁基催化剂，锌系催化剂或钴系催化剂构成的第一选择还原型催化剂21， 并且在第一选择还原型催化剂21的排气下游侧的排气管16中配置由银系催化剂构成的第二选择还原型催化剂22.能够注入烃类液体的液体注入喷嘴26 24位于第一选择还原型催化剂21的排气管16的第一选择还原型催化剂21的排气上游侧，烃类液体供给单元27构成为供给液体24 经由液体喷射量调节阀31到液体喷射喷嘴26.控制器38构成为基于第一温度传感器的检测输出来控制液体喷射量调节阀31 用于检测与第一选择还原型催化剂21相关的废气的温度的检测器41。版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011112018A
公开(公告)日：2011-06-09
申请号：JP2009271215
申请日：2009-11-30
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU , SUZUKI JUN
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To improve mountability of an exhaust emission control device to reduce and control NOx in an exhaust gas by adding a reducing agent to the upstream side of a selective reduction type catalyst, compared to conventional ones. SOLUTION: The selective reduction type catalyst 3 having the nature of allowing NOx to selectively react with ammonia (the reducing agent) even in the coexistence of oxygen is interposed in the middle of an exhaust pipe 4 (exhaust passage). A narrowing section 14 is formed in the vicinity of the inlet of the selective reduction type catalyst 3. The narrowing section is formed so that the passage diameter is gradually reduced toward the flow direction of the exhaust gas 5, and is gradually enlarged on the way and then returned to the initial flow passage diameter. A distribution plate 16 with a large number of aeration holes 15 is disposed at a minimum diameter portion of the narrowing section 14. An urea water addition device 6 (reducing agent addition means) for injecting an urea water 7 (the reducing agent) to the back of the distribution plate 16 is disposed between the distribution plate 16 and the selective reduction type catalyst 3. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：与传统的催化剂相比，通过向选择还原型催化剂的上游侧添加还原剂来提高废气排放控制装置的安装性，以减少和控制排气中的NOx。 解决方案：即使在氧共存的情况下，具有允许NOx与氨（还原剂）选择性反应的性质的选择还原型催化剂3插入排气管4（排气通道）的中间。 在选择还原型催化剂3的入口附近形成有变窄部14，该变窄部形成为使流路直径朝向排气5的流动方向逐渐减小，并且逐渐扩大 然后返回到初始流道直径。 具有大量曝气孔15的分配板16设置在变窄部分14的最小直径部分。一种尿素水添加装置6（还原剂添加装置），用于将尿素水7（还原剂）注入到 分配板16的背面设置在分配板16和选择还原型催化剂3之间。版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2011050954A
公开(公告)日：2011-03-17
申请号：JP2010231653
申请日：2010-10-14
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： SATO SHINYA , HOSOYA MITSURU
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To effectively prevent atmosphere discharge of NOx even at comparatively low temperature and to simultaneously regenerate a selective reduction type catalyst too while regenerating a particulate filter. SOLUTION: The selective reduction type catalyst 24 which is provided in an exhaust pipe 16 of a diesel engine 11 and on which particulate solid matter of ammonium nitrate is deposited is regenerated. At first, the temperature of a diesel particulate filter 51 provided in the exhaust pipe 16 at an exhaust gas upper stream side than the selective reduction type catalyst 24 is raised to burn the particulates deposited on the diesel particulate filter 51. Then, the temperature of the exhaust gas passing through the diesel particulate filter 51 is raised by combustion of the particulates. Moreover particulate solid matter of ammonium nitrate deposited on the selective reduction type catalyst 24 is decomposed by heat of the exhaust gas of the raised temperature. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：即使在较低温度下也能有效地防止NOx的气体排放，同时在再生微粒过滤器的同时再生选择还原型催化剂。 解决方案：设置在柴油发动机11的排气管16中并沉积有硝酸铵的固体物质的选择性还原型催化剂24被再生。 首先，设置在比选择还原型催化剂24排气上游侧的排气管16中的柴油机微粒过滤器51的温度升高，以燃烧沉积在柴油机微粒过滤器51上的微粒。然后， 通过柴油微粒过滤器51的排气通过颗粒的燃烧而升高。 此外，沉积在选择还原型催化剂24上的硝酸铵的颗粒状固体物质被升温的排气的热量分解。 版权所有（C）2011，JPO＆INPIT
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