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公开(公告)号：EP1795724A4
公开(公告)日：2007-11-21
申请号：EP05772485
申请日：2005-08-22
Applicant: HINO MOTORS LTD
Inventor： SATO SHINYA
CPC classification number: F01N3/2066 , B01D53/9431 , B01D2251/2067 , F01N13/0097 , F01N2510/063 , F01N2610/02 , Y02T10/24
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公开(公告)号：JP2013136968A
公开(公告)日：2013-07-11
申请号：JP2011287957
申请日：2011-12-28
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To make supply quantity of aqueous ammonia to an exhaust pipe simply controllable by reforming urea water to the aqueous ammonia without evaporating it with a urea water reformer, and to efficiently reduce NOx in exhaust gas even when exhaust gas temperature is comparatively low.SOLUTION: A selective reduction catalyst 12 provided in the exhaust pipe 15 of an engine 11 reduces NOx in the exhaust gas to N, and the urea water reformer 14 heats the urea water 13 with a heater 14b to reform it to the aqueous ammonia. A urea water supply means 16 supplies the urea water to the urea water reformer, and an injection nozzle 17 facing the exhaust pipe at an exhaust gas upstream side from the selective reduction catalyst jets the ammonia water or the urea water. A controller 38 controls the heater and the urea water supply means based on detection output by a catalyst temperature sensor 33 detecting the exhaust gas temperature relating to the selective reduction catalyst and detection output by a pressure sensor 34 detecting inlet pressure of the urea water reformer.
Abstract translation: 要解决的问题：为了使排气管的氨水供应量简单地通过将尿素水重整为氨水而不用尿素水重整器蒸发而简单地控制，并且即使在废气温度相对较低时也能有效地减少排气中的NOx 发动机11的排气管15中设置的选择还原催化剂12将废气中的NOx还原为N，尿素水重整器14用加热器14b加热尿素水13，将其改性为氨水 。 尿素水供给单元16将尿素水供给到尿素水重整器，并且在与选择还原型催化剂的上游侧排气相对的排气管的喷嘴17喷射氨水或尿素水。 控制器38基于检测与选择还原催化剂相关的废气温度的催化剂温度传感器33的检测输出和检测尿素水重整器的入口压力的压力传感器34的检测输出来控制加热器和尿素水供给装置。
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公开(公告)号：JP2012197695A
公开(公告)日：2012-10-18
申请号：JP2011061154
申请日：2011-03-18
Applicant: Hino Motors Ltd , Hkt Corp , Hkt株式会社 , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU , TAKAHASHI KAZUNORI , INOUE HIROSHI
CPC classification number: Y02P20/52
Abstract: PROBLEM TO BE SOLVED: To adequately atomize a urea solution, and to thereby efficiently reform the urea solution into ammonia gas by a catalyst section.SOLUTION: A carrier gas supplied from a carrier gas source is heated by a carrier gas heating section 16, the carrier gas heated by the carrier gas heating section 16 is injected from a carrier gas injection nozzle 17, and a urea solution 18 is supplied to the tip of the carrier gas injection nozzle by a first urea solution supply nozzle 21 so that the urea solution 18 is atomized by the carrier gas injected from the carrier gas injection nozzle 17. A catalyst section 23 for decomposing the atomized urea solution 18 and reforming the solution into ammonia gas is provided facing the carrier gas injection nozzle 17. Further, an ammonia gas supply nozzle 24 for supplying to an engine exhaust pipe 12 the ammonia gas discharged from an outlet of the catalyst section 23 is attached to the exhaust pipe 12.
Abstract translation: 要解决的问题：为了使尿素溶液充分雾化，从而通过催化剂部分将尿素溶液有效地重整成氨气。 解决方案：从载气源供给的载气由载气加热部16加热，由载气加热部16加热的载气从载气注入喷嘴17注入，尿素溶液18 通过第一尿素溶液供给喷嘴21供给到载气注入喷嘴的前端，使得尿素溶液18被从载气注入喷嘴17喷射的载气雾化。用于分解雾化的尿素溶液的催化剂部分23 18并且将溶液重整为氨气体设置为与载气注入喷嘴17相对。此外，用于向发动机排气管12供给从催化剂部23的出口排出的氨气的氨气供给喷嘴24附接到 排气管12.版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2012097729A
公开(公告)日：2012-05-24
申请号：JP2011155283
申请日：2011-07-14
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HAYASHIZAKI KEIICHI , HOSOYA MITSURU , HIRABAYASHI HIROSHI , SATO SHINYA , KAWADA YOSHIHIRO
IPC: F01N3/08 , B01D53/94 , F01N3/023 , F01N3/025 , F01N3/029 , F01N3/035 , F01N3/24 , F01N3/28 , F01N3/36
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency of reducing NOx in a high temperature range of exhaust gas.SOLUTION: A first selective reduction type catalyst 21 composed of a silver-based catalyst is provided in an exhaust pipe 16 of an engine 11, and a second selective reduction type catalyst 22 composed of a copper-based catalyst, an iron-based catalyst, or a vanadium-based catalyst is provided in an exhaust pipe 16 on an exhaust gas downstream side than the first selective reduction type catalyst 21. A liquid injection nozzle 26 capable of injecting hydrocarbon-based liquid 24 toward the first selective reduction type catalyst 21 is provided in the exhaust pipe 16 on the exhaust gas upstream side than the first selective reduction type catalyst 21, and a hydrocarbon-based liquid supplying means 27 is configured to supply the liquid 24 via a liquid injection amount regulating valve 31 to the liquid injection nozzle 26. The temperature of exhaust gas related to the first selective reduction type catalyst 21 is detected by a first temperature sensor 41, and a controller 38 is configured to control the liquid injection amount regulating valve 31 based on detection output of the first temperature sensor 41.
Abstract translation: 要解决的问题：提高在废气的高温范围内还原NOx的效率。 解决方案：在发动机11的排气管16中设置由银系催化剂构成的第一选择还原型催化剂21和由铜基催化剂，铁 - 催化剂组成的第二选择还原型催化剂22， 在与第一选择还原型催化剂21相比排气下游侧的排气管16中设置有钒系催化剂或钒系催化剂。能够向第一选择还原型催化剂21喷射烃类液体24的液体喷射喷嘴26 催化剂21设置在比第一选择还原型催化剂21的排气上游侧的排气管16中，烃类液体供给装置27构成为经由液体喷射量调节阀31将液体24供给到 与第一选择还原型催化剂21相关的废气的温度由第一温度传感器41检测，并且配置有控制器38 基于第一温度传感器41的检测输出来控制液体喷射量调节阀31.（C）2012年，JPO＆INPIT
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公开(公告)号：JP2012097724A
公开(公告)日：2012-05-24
申请号：JP2011054063
申请日：2011-03-11
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： SATO SHINYA , HIRABAYASHI HIROSHI , HAYASHIZAKI KEIICHI , HOSOYA MITSURU
IPC: F01N3/36 , B01D53/86 , B01J29/74 , B01J29/76 , F01N3/023 , F01N3/025 , F01N3/029 , F01N3/08 , F01N3/24 , F01N3/28
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To improve reduction efficiency of NOx in the high temperature region of exhaust gas.SOLUTION: A first selective reduction type catalyst 21 comprising a copper based catalyst or the like is provided to the exhaust pipe 16 of an engine 11, a second selective reduction type catalyst 22 comprising a silver type catalyst is provided to the exhaust pipe of the exhaust gas downstream side from the first selective reduction type catalyst, and a third selective reduction type catalyst 23 comprising a copper based catalyst is provided to the exhaust pipe of the exhaust gas downstream side from the second selective reduction catalyst. A liquid jetting nozzle 26 capable of jetting a hydrocarbon based liquid 25 toward the first selective reduction type catalyst is provided to the exhaust pipe of the exhaust gas upstream side from the first selective reduction type catalyst and a hydrocarbon based liquid supply means 27 supplies the liquid to the liquid jetting nozzle via a liquid jetting quantity control valve 31. A controller 38 controls the liquid jetting quantity control valve on the basis of each detection output of a first temperature sensor 41 detecting the temperature of the exhaust gas related to the first selective reduction type catalyst and a second temperature sensor 42 detecting the exhaust gas related to the second selective reduction type catalyst.
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上设置有包含铜基催化剂等的第一选择还原型催化剂21，将包含银型催化剂的第二选择还原型催化剂22设置到排气管 的第一选择还原型催化剂的排气下游侧的排气管和从第二选择还原型催化剂排出的废气排气管中的第三选择还原型催化剂23。 在第一选择还原型催化剂的上游侧的排气管的排气管上设置能够朝向第一选择还原型催化剂喷射烃系液体25的液体喷射喷嘴26，烃系液体供给单元27将液体 通过液体喷射量控制阀31到液体喷射喷嘴。控制器38基于检测与第一选择性还原相关的废气的温度的第一温度传感器41的每个检测输出来控制液体喷射量控制阀 和第二温度传感器42，检测与第二选择还原型催化剂有关的废气。 版权所有（C）2012，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2011241712A
公开(公告)日：2011-12-01
申请号：JP2010112951
申请日：2010-05-17
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of suppressing a peak concentration of ammonia desorbing from a selective reduction type catalyst due to an abrupt temperature rise, further than before.SOLUTION: In the exhaust emission control device which contains a selective reduction type catalyst capable of selectively reacting NOx with ammonia even in the coexistence of oxygen at some midpoint in an exhaust pipe 4 and adds urea water 6 as reducer into the exhaust pipe 4 on the upstream side from the selective reduction type catalyst so as to reduce and control NOx, the selective reduction type catalyst is formed by combining two selective reduction type catalysts 5A, 5B having different saturated adsorption quantity curves with respect to ammonia. Both selective reduction type catalysts 5A, 5B are arranged in series so as to keep on the upstream side the selective reduction type catalyst 5A in which an ammonia absorption quantity per unit volume is relatively high under the same temperature condition and on the downstream side the selective reduction type catalyst 5B in which an ammonia absorption quantity per unit volume is relatively low.
Abstract translation: 要解决的问题：提供一种能够比以前更多地抑制由于急剧升温引起的从选择还原型催化剂解氨的峰值浓度的废气排放控制装置。 解决方案：在排气排放控制装置中，即使在排气管4中的某个中点处的氧气共存的情况下，也可以选择性地使NOx与氨反应，并将作为还原剂的尿素水6添加到排气管 4，在选择还原型催化剂的上游侧，为了还原和控制NOx，选择还原型催化剂通过组合具有相对于氨的不同饱和吸附量曲线的两种选择还原型催化剂5A，5B而形成。 两种选择还原型催化剂5A，5B均串联布置，以便在相同温度条件下在每一单位体积的氨吸收量相对较高的选择还原型催化剂5A和下游侧的选择性还原型催化剂5A上保持上游侧 其中每单位体积的氨吸收量相对较低的还原型催化剂5B。 版权所有（C）2012，JPO＆INPIT
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17.发明专利Oxidation catalyst and device which treats exhaust gas from engine by using the same 审中-公开氧化催化剂及其使用方法从发动机处理废气的装置
公开(公告)号：JP2011025166A
公开(公告)日：2011-02-10
申请号：JP2009174013
申请日：2009-07-27
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU
CPC classification number: Y02A50/2322
Abstract: PROBLEM TO BE SOLVED: To improve the loadability of an oxidation catalyst onto a vehicle or the like and maintain the activity of the oxidation catalyst, for a long period of time, to variations in temperature of an exhaust gas from an engine. SOLUTION: An oxidation catalyst 19 includes: a cylindrical carrier 19a whose both ends are open and in which a plurality of cells 19b extending in an exhaust gas flowing direction are formed; and an active substance held by the carrier 19a. In this case, L/D is set to be in a range of 0.5-4, wherein L represents the length of the oxidation catalyst 19, and D represents its diameter. Furthermore, the densities of the cells 19b of the oxidation catalyst 19 are set to be in a range of 600-3,900 pieces/cm 2 , and the thicknesses of the partitions 19c which partition the plurality of cells 19b are set to be in a range of 20-320 μm, and the volume of the oxidation catalyst 19 is set to be in a range of 20-150% in the case that the displacement of an engine is regarded as 100%. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：为了提高氧化催化剂在载体等上的负载能力，并且长时间地维持氧化催化剂的活性与来自发动机的排气温度的变化。 解决方案：氧化催化剂19包括：两端开放的圆柱形载体19a，其中形成有沿废气流动方向延伸的多个单元19b; 和由载体19a保持的活性物质。 在这种情况下，L / D设定在0.5-4的范围内，其中L表示氧化催化剂19的长度，D表示其直径。 此外，将氧化催化剂19的电池19b的密度设定在600〜3900个/ cm·SP 2的范围内，分隔多个电池19b的隔板19c的厚度 在发动机的排量被认为是100％的情况下，氧化催化剂19的体积被设定在20〜150％的范围内。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2010248955A
公开(公告)日：2010-11-04
申请号：JP2009097576
申请日：2009-04-14
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To improve the mountability of an exhaust emission control device reducing particulates and NOx all together, more than ever before. SOLUTION: An oxidation catalyst 2 for oxidation-treating HC in exhaust gas 5 and a particulate filter 1 for letting the exhaust gas 5 through the filer after passage through the oxidation catalyst 2, and collecting particulates are arranged in series at predetermined intervals in a single casing 13 interposed in the middle of an exhaust pipe 4. A selective reduction catalyst 3' having a property of selectively reacting NOx with ammonia even under the coexistence of oxygen is integrally carried by the particulate filter 1, and also just after that, a selective reduction catalyst 3 is additionally equipped with a flow-through type carrier carrying the same. A mixer 14 for agitating the flow of the exhaust gas 5 is arranged near the outlet of the oxidation catalyst 2. An urea water adding device 6 for injecting urea water 7 toward the mixer 14 is arranged between the mixer 14 and the particulate filter 1. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：为了提高废气排放控制装置的安装性，可以将颗粒物和NOx全部减少到一起，比以往任何时候都要好。 解决方案：用于对废气5中的HC进行氧化处理的氧化催化剂2和通过氧化催化剂2使废气5通过过滤器的颗粒过滤器1和收集颗粒以预定间隔串联布置 在排出管4的中间的单个壳体13中。即使在氧气共存的情况下，具有选择性地使NOx与氨反应的性质的选择还原催化剂3'也由微粒过滤器1一体地携带， 选择还原催化剂3另外配备有承载该催化剂的流通型载体。 在氧化催化剂2的出口附近配置有用于搅拌废气5的混合器14.在混合器14和微粒过滤器1之间配置有用于向混合器14喷射尿素水7的尿素水添加装置6。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2010038090A
公开(公告)日：2010-02-18
申请号：JP2008204054
申请日：2008-08-07
Applicant: Hino Motors Ltd , Toyohashi Univ Of Technology , 国立大学法人豊橋技術科学大学 , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU , MIZUNO AKIRA
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To exhibit high NOx reduction performance immediately from a stage when an exhaust gas temperature reaches the activating temperature range of a selective reduction catalyst even during engine starting at a low exhaust temperature or during traveling at low speed. SOLUTION: A urea discharge decomposition reactor 14 is provided upstream of the selective reduction catalyst. The urea discharge decomposition reactor is provided with: a tubular ground electrode 16 formed with many holes 15 with internal spaces opened to the outside; a high-voltage electrode 17 formed into a cylindrical shape in order to surround the ground electrode 16, having an inner peripheral surface coated with a dielectric 17a, and applying a high voltage between the ground electrode 16 and the high voltage electrode; dielectric pellets 19 filled into a discharge space 18 formed between the ground electrode 16 and the high voltage electrode 17; a urea supply device 21 supplying urea paste 13 toward the internal space of the ground electrode 16; and a carrier gas line 30 leading compressed air 29 for delivering ammonia generated in the discharge space 18 into an exhaust pipe 10. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：即使在排气温度达到选择还原催化剂的活化温度范围的阶段，即使在低排气温度的发动机起动或低速行驶期间，也能够立即显示出高的NOx还原性能。 解决方案：在选择还原催化剂的上游设置尿素排放分解反应器14。 尿素排放分解反应器设置有：形成有许多孔15的管状接地电极16，其内部空间向外开放; 为了包围接地电极16而形成为圆筒状的高压电极17，具有被覆有电介质17a的内周面，并且在接地电极16和高压电极之间施加高电压; 填充在形成在接地电极16和高电压电极17之间的放电空间18中的介电粒子19; 向接地电极16的内部空间供给尿素糊13的尿素供给装置21; 和用于将在排放空间18中产生的氨输送到排气管10的压缩空气29的载气管道30。版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009114930A
公开(公告)日：2009-05-28
申请号：JP2007288082
申请日：2007-11-06
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU
CPC classification number: B01D53/9477 , B01D53/9418 , B01D53/944 , B01D2251/2067 , B01D2255/1021 , B01D2255/206 , B01D2255/20707 , B01D2255/20715 , B01D2255/2092 , B01D2255/50 , B01D2258/012 , F01N3/035 , F01N3/106 , F01N3/2066 , F01N3/2892 , F01N13/0097 , F01N2240/40 , F01N2250/02 , F01N2610/02 , Y02A50/2325 , Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To improve the mounting property of an exhaust purification device capable of simultaneously reducing both particulates and NOx than before, and to suppress pressure loss. SOLUTION: The exhaust purification device has a selective reduction type catalyst 3 in the middle of an exhaust pipe 4 and is adapted such that urea water 7 as a reducing agent is added upstream of the selective reduction type catalyst 3 to reduce and purify NOx. The device further has an oxidation catalyst 2 placed upstream of the position at which the urea water 7 is added and oxidizes HC in an exhaust gas 5, and a particulate filter 1 which carries a hydrolysis catalyst for hydrolyzing the urea water 7 into ammonium and a carbon dioxide gas and is placed between the position at which the urea water 7 is added and the selective reduction type catalyst 3. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：为了提高能够同时减少微粒和NOx的排气净化装置的安装性能，并且抑制压力损失。 解决方案：排气净化装置在排气管4的中间具有选择还原型催化剂3，并且适于使作为还原剂的尿素水7被添加到选择还原型催化剂3的上游，以减少和净化 NOx。 该装置还具有放置在尿素水7的位置的上游的氧化催化剂2，并且在排气5中氧化HC;以及颗粒过滤器1，其携带用于将尿素水7水解成铵的水解催化剂和 放置在加入尿素水的位置和选择还原型催化剂3之间。（C）2009，JPO＆INPIT
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