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公开(公告)号：JPH04279719A
公开(公告)日：1992-10-05
申请号：JP6790991
申请日：1991-03-07
Applicant: HINO MOTORS LTD
Inventor： HOSOYA MITSURU
Abstract: PURPOSE:To purify exhaust gas efficiently over a wide operating scope of an engine by connecting the high temperature side passage of a heat exchanger to an exhaust pipe at the upstream side of an adsorption device, and the low temperature side passage of the heat exchanger to an exhaust pipe between the adsorption device and an oxidizing device respectively. CONSTITUTION:When a diesel engine 20 is started, its exhaust gas flows through an exhaust manifold 21, the upstream side of an exhaust pipe 22, the high temperature side passage of a heat exchanger 4, an adsorption device 2, the low temperature side passage of the heat exchanger 4, an-oxidizing device 3, and the downstream side of an exhaust pipe 22 in order. In this case, when the temperature of the exhaust gas is low, the hydrocarbon included in the exhaust gas is collected to a honeycomb carrier 8 of the adsorption device 2. On the other hand, when the temperature of the exhaust gas is made high, the hydrocarbon is removed from the honeycomb carrier 8, accompanied by the exhaust gas, and flows to the low temperature side passage of the heat exchanger 4. And the exhaust gas including the removed hydrocarbon is heated by the new exhaust gas flowing through the high temperature side passage of the heat exchanger 4, and burnt by an oxidizing catalyst carried in a honeycomb carrier 12 of the oxidizing device 3.
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公开(公告)号：JPH04194309A
公开(公告)日：1992-07-14
申请号：JP32498190
申请日：1990-11-27
Applicant: HINO MOTORS LTD
Inventor： HOSOYA MITSURU
Abstract: PURPOSE:To prevent generation of bad odor in specific operations and burn the adsorbed unburnt fire particles, by causing a controller to control a first opening/closing valve, a second opening/closing valve, and a flow control valve in response to the sensor signals from a first and a second temperature sensor. CONSTITUTION:A bypass pipe passage 17 is connected to exhaust pipe passage 13 positioning at the front and rear sides of a converter 16, and a filter chamber 19, which is filled with fibrous active carbon 18, is provided to the bypass passage 17. Further, a recovering pipe passage 24, which is intended to guide an exhaust gas, having flown out from the filter chamber 19, to an inlet of the converter 16, is provided in a manner that the passage 24 branches from the passage 17. The sensor outputs of first and second temperature sensors 31, 32 are connected to control inputs of a controller 33, the control outputs of which are connected to stepping motors 27 to 30. The exhaust gas is guided to the bypass passage 17 and has unburnt fire particles therein adsorbed by the active carbon 18 in the filter chamber 19. This prevents the generation of bad odor and causes burning of the unburnt fire particles adsorbed.
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公开(公告)号：JP2015001193A
公开(公告)日：2015-01-05
申请号：JP2013126054
申请日：2013-06-14
Applicant: 日野自動車株式会社 , Hino Motors Ltd
Inventor： KAWADA YOSHIHIRO , HOSOYA MITSURU
Abstract: 【課題】NOxの還元される効率を高めることができる排気浄化装置、および、排気浄化システムを提供する。【解決手段】エンジンからの排気に含まれるNOxを還元する還元触媒23と、メタンの改質によって生成された還元剤を還元触媒23に供給する改質触媒22と、改質触媒22にオゾンを供給するオゾン供給部とを備える。改質触媒22は、メタンとオゾンとからメタンの酸化によって還元剤を生成する反応を促し、還元触媒23は、還元剤によるNOxの還元を促す。【選択図】図1
Abstract translation: 要解决的问题：提供一种能够提高降低NO的效率的废气排放控制装置和废气排放控制系统。废气排放控制装置包括：还原催化剂23，其用于还原来自 发动机 用于将通过改性甲烷生产的还原剂进料到还原催化剂23的改性催化剂22; 以及用于向改性催化剂22供给臭氧的臭氧供给部。改性催化剂22通过氧化甲烷促进从甲烷和臭氧生成还原剂的反应，还原催化剂23促进还原剂的NO的还原。
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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：JP2013096347A
公开(公告)日：2013-05-20
申请号：JP2011241808
申请日：2011-11-04
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HASHIZUME YOSHIHIRO , HOSOYA MITSURU
CPC classification number: Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To prevent damages on a turbine blade of a turbocharger and to efficiently reform a part of fuel into hydrogen by use of a reforming catalyst with an addition of a relatively small amount of the fuel from a fuel addition means to the reforming catalyst.SOLUTION: A reforming catalyst 24 disposed in an exhaust manifold 17 reforms a fuel 25 of an engine 11 into hydrogen; while a fuel addition means 27 supplies the fuel to the reforming catalyst. A selective reduction type catalyst 39 disposed in an exhaust pipe 18 at a downstream side of the exhaust gas than a turbine housing 19b of a turbocharger 19 reduces NOx in the exhaust gas by using the hydrogen as a reducing agent. A waste gate valve 52 disposed in a bypass pipe 51 that bypasses the turbine housing adjusts opening of the bypass pipe to adjust a flow volume of the exhaust gas flowing into the turbine housing. A controller 61 controls the fuel addition means based on the operation condition of the engine and also controls the waste gate valve based on the detection output of a temperature sensor 53 that detects an entrance temperature of the turbine housing.
Abstract translation: 要解决的问题：为了防止对涡轮增压器的涡轮机叶片的损坏，并且通过使用来自燃料添加装置的相对少量的燃料添加的重整催化剂来有效地将一部分燃料转化为氢气 至重整催化剂。 解决方案：设置在排气歧管17中的重整催化剂24将发动机11的燃料25改为氢气; 而燃料添加装置27将燃料供给到重整催化剂。 设置在排气管下游侧的排气管18中的选择还原型催化剂39比涡轮增压器19的涡轮壳体19b减少，通过使用氢作为还原剂来减少废气中的NOx。 设置在绕过涡轮机壳体的旁通管51中的废气闸阀52调节旁通管的开度，以调节流入涡轮机壳体的废气的流量。 控制器61基于发动机的运转状况控制燃料添加装置，并且还基于检测涡轮机壳体的入口温度的温度传感器53的检测输出来控制废气门阀。 版权所有（C）2013，JPO＆INPIT
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Patent Agency Ranking
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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公开(公告)号：JP2012012944A
公开(公告)日：2012-01-19
申请号：JP2010147412
申请日：2010-06-29
Applicant: Hino Motors Ltd , 日野自動車株式会社
Inventor： HAYASHIZAKI KEIICHI , HOSOYA MITSURU , HIRABAYASHI HIROSHI
Abstract: PROBLEM TO BE SOLVED: To improve NOx reduction performance of an NOx storage reduction catalyst by suppressing the discharge of NOx stored in the NOx storage reduction catalyst through optimum control of an injection timing and injection flow rate of hydrocarbon based liquid from a first and second liquid injection nozzles based on a flow rate of exhaust gas.SOLUTION: A first liquid injection nozzle 21, oxidation catalyst 23, second liquid injection nozzle 22 and NOx occlusion reduction catalyst 24 are arranged to an exhaust pipe 16 of an engine 11 from an exhaust gas upstream side in that order. A hydrocarbon liquid supply means 30 supplies liquid 28 to the first liquid injection nozzle through a first liquid regulating valve 31 and to the second liquid injection nozzle through a second liquid regulating valve 32. A temperature of exhaust gas passing through an exhaust pipe is detected by temperature sensors 61, 62. An exhaust flow rate of exhaust gas is detected by an exhaust gas flow rate detecting means 44. A controller 38 controls the first and second liquid regulating valves on the basis of respective detection outputs of the temperature sensors and exhaust gas flow rate detection means.
Abstract translation: 解决问题的方法是：通过对来自第一（NO）的烃类液体的喷射正时和喷射流量的最佳控制来抑制NOx储存还原催化剂中储存的NOx的排出，来提高NOx吸留还原催化剂的NO x还原性能 以及基于废气流量的第二液体喷射喷嘴。 解决方案：从排气上游侧依次将第一液体喷射喷嘴21，氧化催化剂23，第二液体喷射喷嘴22和NOx吸留还原催化剂24布置在发动机11的排气管16上。 碳氢化合物液体供给装置30通过第一液体调节阀31向第一液体喷射喷嘴提供液体28，通过第二液体调节阀32向第二液体喷射喷嘴提供液体28.通过排气管的废气的温度由 温度传感器61,62。废气流量检测装置44检测废气的排气流量。控制器38基于温度传感器和废气的各自检测输出来控制第一和第二液体调节阀 流量检测装置。 版权所有（C）2012，JPO＆INPIT
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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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