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公开(公告)号：JP2012193620A
公开(公告)日：2012-10-11
申请号：JP2011056111
申请日：2011-03-15
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HOSOYA MITSURU , KAWADA YOSHIHIRO , SATO SHINYA
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To efficiently reduce NOx within a wide exhaust gas temperature range from low temperature to high temperature by efficiently reducing NOx even when the exhaust gas temperature is low.SOLUTION: A selective reduction-type catalyst 19 capable of reducing NOx in exhaust gas to Nis disposed in an exhaust pipe 16 of an engine 11. A fluid supply means 21 has a fluid spray nozzle 23 facing the exhaust pipe 16 in an exhaust gas upstream side of the selective reduction-type catalyst 19. The fluid supply means 21 is configured to supply a urea-based fluid 22 that functions as a reducing agent in the selective reduction-type catalyst 19, from the fluid spray nozzle 23 to the exhaust pipe 16. An ozone supply means 41 includes an ozone spray nozzle 43 that faces the exhaust pipe 16 in an exhaust gas upstream side of the selective reduction-type catalyst 19 and in an exhaust gas upstream side or an exhaust gas downstream side of the fluid spray nozzle 23. The ozone supply means 41 is configured to supply ozone 42, which can oxidize NO in the exhaust gas into NO, from the ozone spray nozzle 43 to the exhaust pipe 16.
Abstract translation: 要解决的问题：即使在废气温度低的情况下，也可以通过有效地降低NOx来有效地将NOx从低温到高温的废气温度范围内降低。 解决方案：将排气中的NOx还原为N
2 的选择还原型催化剂19设置在发动机11的排气管16中。流体供应装置 21具有在选择还原型催化剂19的排气上游侧面对排气管16的流体喷射喷嘴23.流体供给装置21构造成在作为还原剂的催化剂 选择还原型催化剂19从流体喷嘴23到排气管16.臭氧供给装置41包括在选择还原型催化剂19的排气上游侧面对排气管16的臭氧喷雾喷嘴43 并且在流体喷嘴23的排气上游侧或排气下游侧。臭氧供给单元41构成为供给能够将废气中的NO氧化为NO 的臭氧层42。 2℃，从臭氧喷嘴43到排气管16。版权所有（C）20 13，JPO＆INPIT -
公开(公告)号：JP2009019556A
公开(公告)日：2009-01-29
申请号：JP2007182376
申请日：2007-07-11
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HIRABAYASHI HIROSHI , HOSOYA MITSURU , MATSUNAMI OKITOMO , SANO RUI
IPC: F01N3/02 , B01D46/42 , B01D53/94 , F01N3/08 , F01N3/24 , F01N3/28 , F01N3/36 , F02D21/08 , F02M25/07
CPC classification number: F01N3/035 , B01D46/0027 , B01D46/0061 , B01D46/2418 , B01D53/9459 , B01D2251/208 , B01D2258/012 , F01N3/0231 , F01N3/0253 , F01N2510/065 , F02B29/04 , F02M26/22
Abstract: PROBLEM TO BE SOLVED: To effectively reduce NOx in an operation state of the low exhaust temperature, by utilizing an oxidation catalyst carried on a particulate filter and an oxidation catalyst arranged in its front stage.
SOLUTION: This exhaust emission control device is provided for forcibly regenerating the particulate filter 13 by reaction heat when its adding fuel causes oxidation reaction on the oxidation catalyst 14, by adding the fuel by post-injection on the diesel engine 1 side, by interposing the catalytic regeneration type particulate filter 13 equipped with the oxidation catalyst 14 in the front stage in an exhaust pipe 11, and is constituted so that an NO
2 generating catalyst 22 for promoting the oxidation reaction of NO to NO
2 is arranged in the exhaust pipe 11 on the upstream side of the oxidation catalyst 14, and a fuel adding device 23 is arranged for directly injecting the fuel into exhaust gas 9 between the NO
2 generating catalyst 22 and the oxidation catalyst 14, and a part of the exhaust gas 9 is extracted from an exhaust system on the upstream side of the fuel adding device 23, and is recirculated to an intake system.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：通过利用载置在微粒过滤器上的氧化催化剂和布置在其前级的氧化催化剂，在低排气温度的操作状态下有效地还原NOx。 解决方案：该废气排放控制装置用于当其添加燃料在氧化催化剂14上引起氧化反应时通过反应热强制再生微粒过滤器13，通过后喷射将燃料添加到柴油发动机1侧， 通过在排气管11中将装有氧化催化剂14的催化再生型微粒过滤器13置于前段，并且构成为使NO（S 2）生成催化剂22促进NO的氧化反应 到NO
2 布置在氧化催化剂14的上游侧的排气管11中，并且配置燃料添加装置23，用于将燃料直接喷射到NO 2 产生催化剂22和氧化催化剂14，并且一部分废气9从燃料添加装置23的上游侧的排气系统中抽出，并被再循环到进气系统。 版权所有（C）2009，JPO＆INPIT -
公开(公告)号：JP2009002213A
公开(公告)日：2009-01-08
申请号：JP2007163252
申请日：2007-06-21
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： KAWADA YOSHIHIRO , SATO SHINYA , HOSOYA MITSURU
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust treatment device capable of accelerating specified treatment of exhaust by suitably mixing the exhaust and a substance added to the exhaust with pressure loss kept low while having a simple and inexpensive structure.
SOLUTION: Without providing such a small exhaust path 2A as in the case of the conventional arts, containers 10, 11 are joined via a large-diameter juncture 12. A urea aqueous solution injection nozzle 5A and a mixer 20 are provided in the juncture 12. The mixer is equipped with a plurality of fins 21 radially arranged at given intervals and the fins 21 are fixed at a position rotated by a given angle in a given direction with a shaft 21B defined as a rotating center. Cutout portions 22 are provided in the fins 21. Therefore, the pressure loss can be held down by the cutout portions 22 and besides a stream turned by the fins 21 and a stream passing the cutout portions 22 to go straight in the exhaust path are allowed to collide effectively with each other at the downstream side of the exhaust, thus accelerating a mixing action of urea and the exhaust.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 解决问题：提供一种排气处理装置，其能够通过将排气和添加到排气中的物质适当地混合，同时具有简单且便宜的结构而保持低压的压力来加速排气的指定处理。 解决方案：在不设置与现有技术情况相同的这种小排气路径2A的情况下，容器10,11经由大直径接合点12连接。尿素水溶液注入喷嘴5A和混合器20设置在 混合器配备有以给定间隔径向布置的多个翅片21，并且翅片21被固定在以给定方向旋转给定角度的位置，轴21B被限定为旋转中心。 切断部分22设置在翅片21中。因此，可以通过切口部分22压住压力损失，并且除了由翅片21转动的流以及通过切口部分22在排气路径中直线流动的流被允许 在排气的下游侧彼此有效地碰撞，从而加速尿素和排气的混合动作。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2007077855A
公开(公告)日：2007-03-29
申请号：JP2005265289
申请日：2005-09-13
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HOSOYA MITSURU , SHIMODA MASATOSHI , ISHII SHIN
CPC classification number: B01D53/9431 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/2892 , F01N13/0097 , F01N2240/20 , F01N2570/14 , F01N2610/03 , Y02A50/2344 , Y02C20/10
Abstract: PROBLEM TO BE SOLVED: To allow overall regeneration of an NOx storage reduction catalyst to be efficiently advanced by uniformly providing a fuel added in an exhaust gas to a catalyst surface of the NOx storage reduction catalyst. SOLUTION: In relation to this exhaust emission control device composed by interposing the the NOx storage reduction catalyst 12 in an intermediate part of an outlet pipe (exhaust passage) 11 for guiding an exhaust gas 9 from an engine 1 and provided, in the outlet pipe (exhaust passage) 11 on the upstream side of the the NOx storage reduction catalyst 12, with a fuel addition device (fuel addition means) 13 for adding a fuel as a reducing agent, a diffusion plate 15 for facilitating dispersion of the added fuel by diffusing the exhaust gas 9 is arranged between a fuel addition position by the fuel addition device 13 and the NOx storage reduction catalyst 12. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：通过均匀地提供添加到废气中的燃料到NOx吸留还原催化剂的催化剂表面，可以有效地提高NOx储存还原催化剂的总体再生。 解决方案：关于通过将NOx储存还原催化剂12插入出口管（排气通道）11的中间部分而构成的废气排放控制装置，用于引导来自发动机1的废气9， 具有用于添加作为还原剂的燃料的燃料添加装置（燃料添加装置）13的NOx吸留还原催化剂12的上游侧的出口管（排气通道）11，用于促进 通过燃料添加装置13的燃料添加位置和NOx储存还原催化剂12之间配置通过扩散废气9而添加的燃料。版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2006037768A
公开(公告)日：2006-02-09
申请号：JP2004215764
申请日：2004-07-23
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HOSOYA MITSURU
CPC classification number: Y02T10/126 , Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for achieving a high NOx reduction rate from a relatively low temperature region. SOLUTION: The exhaust emission control device comprises: a pair of NOx storage reduction catalysts 5 disposed in parallel in the middle of an exhaust pipe 4; an exhaust selector valve 8 (first exhaust selector means) distributing exhaust gas 3 into one of the NOx storage reduction catalysts 5; a bypass pipe 13 disposed upstream the valve 8 to guide part of the exhaust gas 3 to an inlet side of each NOx storage reduction catalyst 5; a reforming catalyst 14 disposed in the middle of the bypass pipe 13 and decomposing diesel oil 20 (fuel) into H 2 and CO; and fuel adding means 21 adding the diesel oil 20 as reducer to the inlet side of the reforming catalyst 14; and an open/close valve 25 (second exhaust switching means) distributing the exhaust gas 3, which has been guided by the bypass pipe 13 through the reforming catalyst, into one of the NOx storage reduction catalysts 5. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种用于从较低温度区域获得高NOx还原速率的废气排放控制装置。 解决方案：废气排放控制装置包括：在排气管4的中间平行布置的一对NOx储存还原催化剂5; 将废气3分配到NOx吸留还原催化剂5之一中的排气选择阀8（第一排气选择装置） 旁通管13设置在阀8的上游，以将废气3的一部分引导到每个NOx储存还原催化剂5的入口侧; 设置在旁通管13的中间并将柴油20（燃料）分解为H SB 2和CO的重整催化剂14; 以及燃料添加装置21，将作为还原剂的柴油20加入到重整催化剂14的入口侧; 以及将由旁通管13引导的废气3通过重整催化剂分配到一个NOx储存还原催化剂5中的开/关阀25（第二排气切换装置）。版权所有（C） ）2006年，日本特许厅和NCIPI
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Patent Agency Ranking
公开(公告)号：JP2005307769A
公开(公告)日：2005-11-04
申请号：JP2004122644
申请日：2004-04-19
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HIRABAYASHI HIROSHI , HOSOYA MITSURU , SHIMODA MASATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device enabling optimal fuel addition without excess or insufficiency according to various operating conditions of an engine, and providing a high-NOx reducing rate without causing a malfunction such as the deterioration of a catalyst and the leakage of excess fuel. SOLUTION: This exhaust emission control device is designed such that NOx is reduced and removed by adding gas oil 12 (fuel) as a reducing agent to the upstream side of an NOx occlusion reduction catalyst 5. The device is provided with an injector 7 arranged in an exhaust pipe 4 on the upstream side from the NOx occlusion reduction catalyst 5 and ejecting gas oil 12, a pressure accumulation tank 9 (pressure accumulating means) pressurizing and accumulating gas oil 12 introduced to the injector 7, and a gas oil booster pump 11 (fuel pressurizing pump) forcibly feeding gas oil 12 to the pressure accumulation tank 9. The pressure of gas oil 12 accumulated in the pressure accumulation tank 9 is properly regulated by the gas oil booster pump 11. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种废气排放控制装置，其能够根据发动机的各种操作条件实现最佳燃料添加而不会过多或不足，并且提供高NOx还原速率而不引起诸如劣化的故障 催化剂和多余燃料的泄漏。 解决方案：该废气排放控制装置被设计成通过将NOx油作为还原剂添加到NOx吸留还原催化剂5的上游侧而被还原和除去。该装置设置有喷射器 7，配置在从NOx吸留还原催化剂5的上游侧的排气管4中，喷出瓦斯油12，对导入到喷射器7的加油和积存瓦斯油12的蓄压池9（蓄压装置） 将增压泵11（燃料加压泵）强制地将瓦斯油12供给到蓄压池9.积存在蓄压池9中的瓦斯油12的压力由气油增压泵11适当调节。 C）2006，JPO＆NCIPI
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公开(公告)号：JP2005226504A
公开(公告)日：2005-08-25
申请号：JP2004034629
申请日：2004-02-12
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： SATO SHINYA , HOSOYA MITSURU , TAKENAKA YOSHIHIDE , SHIMODA MASATOSHI
IPC: F01N3/08
Abstract: PROBLEM TO BE SOLVED: To enable proper control of an addition amount of a reducing agent by estimating an adsorption amount of a reducing agent to a NOx reduction catalyst. SOLUTION: In a method for controlling an exhaust emission control device where an NOx reduction catalyst 10 is situated in the middle of an exhaust pipe 9, and urea water 17 (the reducing agent) is added on the upper stream side of the NOx reduction catalyst 10 by a urea water adding means 18, and NOx is reduced and purified, an NOx generating amount is estimated and an addition amount of the urea water 17 corresponding to the estimated value is decided. Meanwhile, an NOx reduction amount is estimated and an ammonia consumption amount corresponding to the estimated value is decided. By reducing an integrated value of a consumption amount from an integrated value of an addition amount of the urea water 17, an adsorption amount of ammonia to the NOx reduction catalyst 10 is estimated. A correction factor corresponding to the adsorption amount is decided and an addition amount of the urea water 17 is corrected by the correction factor, and the corrected addition amount of the urea water 17 is set as an addition indicating value to the urea water adding means 18. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：通过估算还原剂对NOx还原催化剂的吸附量，能够适当地控制还原剂的添加量。 解决方案：在用于控制排气排放控制装置的方法中，其中NOx还原催化剂10位于排气管9的中间，并且尿素水17（还原剂）加入到排气管9的上游侧 通过尿素水添加机构18将NOx还原催化剂10还原并进行NOx净化，推定NOx生成量，并且决定与该估计值对应的尿素水17的添加量。 同时，估计NOx减少量，并且确定与估计值对应的氨消耗量。 通过从尿素水17的添加量的积分值中减去消耗量的积分值，估计氨对NOx还原催化剂10的吸附量。 确定对应于吸附量的校正因子，并通过校正因子校正尿素水17的添加量，将尿素水17的校正添加量设定为尿素水添加装置18的添加指示值 （C）2005，JPO＆NCIPI
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公开(公告)号：JP2004204699A
公开(公告)日：2004-07-22
申请号：JP2002371532
申请日：2002-12-24
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HOSOYA MITSURU
IPC: F02D9/02 , B01D53/94 , F01N3/02 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/04 , F02D41/38 , F02D43/00 , F02D45/00
CPC classification number: Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To favorably regenerate NOx occlusion-reduction catalyst even in a low load operation of an engine. SOLUTION: This exhaust gas purifying device comprises the NOx occlusion-reduction catalyst 10 in the midway of an exhaust pipe 9, fuel addition means (an addition fuel pump 14, a solenoid valve 15 and an injection nozzle 16) adding fuel to the exhaust gas pipe 9 in its upstream side thereof, a port oxidation catalysts 18 equipped in exhaust gas ports of respective cylinders, low load determination means (an accelerator sensor 21 and a rotation sensor 22) determining that the operation state is in a low load operation region, a fuel injection device 24 injecting the fuel to the respective cylinders, and a control device 23 outputting a fuel injection command of performing a pilot injection prior to a main injection of a fuel in determining the low load operation region and performing the main injection a little delayed timing than the ordinary injection timing, to the fuel injection device 24. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract translation: 要解决的问题：即使在发动机的低负载操作中，也能有利地再生NOx吸留还原催化剂。 解决方案：该排气净化装置包括在排气管9的中途的NOx吸留还原催化剂10，燃料添加装置（附加燃料泵14，电磁阀15和喷射嘴16），将燃料添加到 其上游侧的排气管9，配置在各气缸的排气口的端口氧化催化剂18，低负荷判定单元（加速器传感器21和旋转传感器22），判断为运转状态为低负荷 操作区域，将燃料喷射到各个气缸的燃料喷射装置24以及控制装置23，其输出在确定低负载运行区域之前在燃料主喷射之前执行先导喷射的燃料喷射指令，并执行主 喷射装置24的喷射时间比普通喷射时间少一些。（C）2004年，JPO＆NCIPI
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公开(公告)号：JP2003232218A
公开(公告)日：2003-08-22
申请号：JP2002032385
申请日：2002-02-08
Applicant: HINO MOTORS LTD
Inventor： HOSOYA MITSURU , MOGI HIRONOBU
Abstract: PROBLEM TO BE SOLVED: To uniformize a urea-based liquid reaching a selective reduction type catalyst. SOLUTION: This exhaust emission control device is provided with the selective reduction type catalyst 24 disposed in the exhaust pipe 16 of an engine 11, and a liquid injection nozzle 29 disposed in the exhaust pipe 16 on the upstream side of the selective reduction type catalyst 24 and capable of injecting the urea-based liquid 32 toward the selective reduction type catalyst 24. A mixer 51 for mixing exhaust gas with the liquid 32 injected from the liquid injection nozzle 29 is arranged in the exhaust pipe 16 between the liquid injection nozzle 29 and the selective reduction type catalyst 24. The mixer 51 is provided with a mixer body 52 having a cylindrical part 52a capable of passing exhaust gas in an axis direction, and a plurality of partitioning plates 53 arranged at required intervals in the mixer body 52 to interrupt the passing of exhaust gas in the inside of the cylindrical part 52a and having a plurality of gas holes 53a. The plurality of gas holes 53a are so formed as not to overlap with the plurality of gas holes 53a formed in the adjacent partitioning plates 53 and the axis direction of the cylindrical part 52a. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002166130A
公开(公告)日：2002-06-11
申请号：JP2000365199
申请日：2000-11-30
Applicant: HINO MOTORS LTD
Inventor： SHIMODA MASATOSHI , HOSOYA MITSURU
Abstract: PROBLEM TO BE SOLVED: To provide a highly practical reducing agent supply apparatus constituted so that a urea powder is dissolved in water on a vehicle to prepare aqueous urea which is, in turn, supplied to the NOx reducing catalyst on the way of an exhaust pipe as a reducing agent. SOLUTION: The reducing agent supply apparatus 8 for supplying aqueous urea 7 to the NOx reducing catalyst 5 disposed on the way of the exhaust pipe 4 is equipped with an aqueous urea tank 11 having a water supply port 9 and a urea powder charging port 10 formed at the upper part thereof, a jet nozzle 12 formed on the inlet side of the NOx reducing catalyst 5, a supply line 13 connecting the nozzle 12 to the bottom part of the tank 11, a pump 14 disposed on the way of the line 13 to supply aqueous urea 7 to the nozzle 12, a urea powder tank 17 housing a urea powder 16, a quantitative delivery device (two-state upper and lower gate valves 18 and 18) disposed on the bottom part of the tank 17 and quantitatively dilivering the urea powder 16 and a stirrer 19 for stirring aqueous urea 7.
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