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公开(公告)号：JP2014227938A
公开(公告)日：2014-12-08
申请号：JP2013109047
申请日：2013-05-23
Applicant: トヨタ自動車株式会社 , Toyota Motor Corp , 株式会社日本自動車部品総合研究所 , Nippon Soken Inc
Inventor： ASANUMA TAKAMITSU , OGAWARA SEIJI , SENDA KOJI , OYAMA NAOHISA , OMICHI SHIGEKI , FUKURODA TAKASHI
Abstract: 【課題】アッシュによるパティキュレートフィルタの性能低下に対する影響を弱める。【解決手段】排気ガス中に含まれる粒子状物質を捕集するためのパティキュレートフィルタ24を機関排気通路内に配置する。パティキュレートフィルタを移動促進温度まで昇温することによりパティキュレートフィルタの排気ガス流入通路の内周面上に堆積したアッシュが排気ガス流入通路の奥部に移動するのを促進する移動促進制御と、移動促進温度よりも高い減容温度までパティキュレートフィルタを昇温することによりパティキュレートフィルタ上のアッシュの容積を低減する減容制御を行う。【選択図】図1
Abstract translation: 要解决的问题：减少灰分对颗粒过滤器性能劣化的影响。解决方案：用于收集废气中所含的颗粒物质的颗粒过滤器24布置在发动机排气通道中。 通过将微粒过滤器的温度升高到移动促进温度来执行用于促进积聚在颗粒过滤器的废气流入通道的内周上的灰尘移动到废气流入通道的深部的运动促进控制。 通过将微粒过滤器的温度提高到高于移动促进温度的容量降低温度来执行用于降低微粒过滤器上的灰分容量的容量降低控制。
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公开(公告)号：JP2013044283A
公开(公告)日：2013-03-04
申请号：JP2011182590
申请日：2011-08-24
Applicant: Toyota Industries Corp , 株式会社豊田自動織機 , Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SONE HIROTAKA , TAKEUCHI MASAHIKO , OGAWARA SEIJI , ASANUMA TAKAMITSU , ISHIKAWA MICHIO
CPC classification number: B01J23/63 , B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/9032 , B01J23/40 , B01J23/42 , B01J23/44 , B01J37/0244 , B01J37/0248
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust gas purification catalyst that can reduce a quantity of noble metal carried by a carrier base material while preventing exhaust gas purifying performance from degrading.SOLUTION: Dashed lines 11, 12 and 13 indicating relation between a temperature on the downstream 7 and conversion efficiency when the quantity of noble metal carried on the downstream 7 is varied are drawn on the right-hand side of a solid line 10 indicating relation between a temperature on the upstream 6 and the conversion efficiency. The dashed line 12 shows a smaller quantity of the noble metal carried on the downstream 7 than the quantity indicated by the dashed line 11, while the dashed line 13 shows a smaller quantity of the noble metal carried on the downstream 7 than the quantity indicated by the dashed line 12. Where the temperature of exhaust gas flowing into the upstream 6 is 168°C and the temperature of the exhaust gas rises by ΔT°C by purifying reaction while the exhaust gas flows through the upstream 6, (168+ΔT)°C is attained. Thus, the dashed lines 11 and 12 refer to a case where the conversion efficiency on the downstream 7 is saturated, and at least the quantity of the noble metal shown by the dashed line 12 just need to be carried on the downstream 7.
Abstract translation: 解决问题：提供一种排气净化催化剂，其可以减少由载体基材承载的贵金属的量，同时防止排气净化性能降低。 解决方案：指示下游7的温度与下游7所携带的贵金属的量之间的转换效率的变化关系的虚线11,12,13示于实线10的右侧 指示上游6的温度与转换效率之间的关系。 虚线12表示在下游7上承载的贵金属的量比虚线11所示的数量少，而虚线13表示比下游7所携带的贵金属少的量比由 虚线12.当排气流过上游6时（168 +ΔT），通过净化反应，流入上游侧6的排气温度为168℃，排气温度上升ΔT℃， ℃。 因此，虚线11和12是指下游7的转换效率饱和的情况，并且至少虚线12所示的贵金属的数量只需要在下游7上承载。
版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2010112292A
公开(公告)日：2010-05-20
申请号：JP2008286482
申请日：2008-11-07
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KUWASHIMA MASAMICHI , ISHIBASHI KAZUNOBU , OGAWARA SEIJI , TAKAGI NOBUYUKI , ENDO TAKAYUKI , WATABE GAO , SOFUE YUICHI , ASANUMA TAKAMITSU , OHASHI NOBUMOTO , YOSHIDA KOHEI
Abstract: PROBLEM TO BE SOLVED: To provide a catalyst for exhaust emission control, exhibiting excellent NOx conversion performance while inhibiting sulfur poisoning of the catalyst in a wide range from a low temperature range to a high temperature range. SOLUTION: The catalyst for exhaust emission control comprises a sulfur capture catalyst 1 arranged in an exhaust passage of an internal combustion engine, a NOx adsorption material 2 arranged downstream of the sulfur capture catalyst 1, and an NOx reduction-conversion catalyst 3 arranged downstream of the NOx adsorption material 2. The NOx adsorption material 2 comprises a nonmetal component having NOx adsorptivity. The nonmetal component preferably contains one or more selected among CeO 2 , Gd 2 O 3 and Pr 6 O 11 . COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：为了提供排气排放控制用催化剂，在从低温范围到高温范围的宽范围内抑制催化剂的硫中毒的同时表现出优异的NOx转化性能。 解决方案：排气排放控制用催化剂包括配置在内燃机的排气通路中的硫捕获催化剂1，配置在硫捕获催化剂1下游的NOx吸附材料2和NOx还原转化催化剂3 设置在NOx吸附材料2的下游.NO x吸附材料2包含具有NOx吸附性的非金属成分。 非金属成分优选含有选自CeO 2，SB 3，SB 3，Sb 6，Sb 3， SB> 11 。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010053712A
公开(公告)日：2010-03-11
申请号：JP2008216780
申请日：2008-08-26
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NISHIOKA HIROMASA , HIROTA SHINYA , ASANUMA TAKAMITSU , YOSHIDA KOHEI , OTSUKI HIROSHI , NAKATA YUKA
Abstract: PROBLEM TO BE SOLVED: To highly maintain the NOx conversion ratio of an NOx storage-reduction catalyst, by reducing SOx stored in the NOx storage-reduction catalyst, by restraining the SOx from being discharged from an SOx trap catalyst.
SOLUTION: An upstream side NOx storage-reduction catalyst 27u and a downstream side An upstream side NOx storage-reduction catalyst 27d are arranged in series in an engine exhaust passage, and the SOx trap catalyst 26 capturing the SOx included in exhaust gas, is arranged in the engine exhaust passage upstream of the upstream side NOx storage-reduction catalyst 27u. An upstream side fuel adding valve 32u is arranged in the exhaust passage upstream of the SOx trap catalyst 26, and a downstream side fuel adding valve 32d is arranged in the exhaust passage between the mutual NOx storage-reduction catalysts 27u and 27d. The NOx conversion ratio of the upstream side NOx storage-reduction catalyst 27u is detected, and a fuel adding quantity from the upstream side fuel adding valve 32u and a fuel adding quantity from the downstream side fuel adding valve 32d when NOx discharge processing must be performed, are respectively set based on the detected NOx conversion ratio.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：为了通过抑制SO x从SO x捕集催化剂排出，通过减少存储在NOx储存还原催化剂中的SOx来高度维持NOx储存还原催化剂的NOx转化率。 解决方案：上游侧NOx还原催化剂27u和下游侧上游侧NOx吸留还原催化剂27d串联配置在发动机排气通路内，SO X捕集催化剂26捕获废气中包含的SO x 配置在上游侧NOx吸留还原催化剂27u上游的发动机排气通路中。 上游侧燃料添加阀32u配置在SO x捕集催化剂26的上游侧的排气通路中，下游侧燃料添加阀32d配置在排出通路内，在相互的NOx吸留还原催化剂27u，27d之间。 检测上游侧NOx还原催化剂27u的NOx转化率，并且必须进行NOx排出处理时来自上游侧燃料添加阀32u的燃料添加量和来自下游侧燃料添加阀32d的燃料添加量 分别基于检测到的NOx转化率来设定。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009264312A
公开(公告)日：2009-11-12
申请号：JP2008116932
申请日：2008-04-28
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KURISAKA ITSUYA , ASANUMA TAKAMITSU , OHASHI NOBUMOTO , IIDA SHINGO
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of performing S regeneration control while preventing excessive temperature rise of a filter. SOLUTION: The exhaust emission control device for the internal combustion engine is provided with a NOx storage reduction catalyst storing and reducing NOx in an exhaust passage and a filter disposed at a downstream of the NOx storage reduction catalyst and collecting particulate matter in exhaust gas. The exhaust emission control device for the internal combustion engine includes a control means such as ECU. The control means performs sulfur regeneration control of the NOx storage reduction catalyst after reducing accumulation quantity of particulate matter on the filter to a prescribed quantity. Consequently, S regeneration control can be performed while preventing excessive temperature rise of the filter. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够在防止过滤器过度升温的同时执行S再生控制的内燃机的废气排放控制装置。 解决方案：用于内燃机的废气排放控制装置设置有NOx吸留还原催化剂，其存储和还原排气通道中的NOx和设置在NOx储存还原催化剂的下游并且收集排气中的颗粒物质的过滤器 加油站。 用于内燃机的废气排放控制装置包括诸如ECU的控制装置。 控制装置在将过滤器上的颗粒物质的累积量减少到规定量之后，进行NOx储存还原催化剂的硫再生控制。 因此，可以在防止过滤器过度升温的同时进行S再生控制。 版权所有（C）2010，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2009257099A
公开(公告)日：2009-11-05
申请号：JP2008103912
申请日：2008-04-11
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NISHIOKA HIROMASA , ASANUMA TAKAMITSU , YOSHIDA KOHEI , NAKATA YUKA
CPC classification number: F02D41/0285 , B01D53/9495 , B01D2255/91 , B01D2257/302 , B01D2257/404 , F01N3/0814 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N9/00 , F01N13/02 , F01N2430/06 , F01N2430/085 , F01N2570/04 , F01N2570/14 , F01N2610/03 , F01N2900/1612 , F02D41/025 , F02D41/0275 , F02D41/405 , Y02A50/2344 , Y02T10/26 , Y02T10/44 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To prevent the discharge of SO x from a SO x trap catalyst 13. SOLUTION: A SO x trap catalyst 13 for capturing SO x contained in exhaust gas is mounted in an engine exhaust passage situated upstream of an NO x occluding catalyst 15. When NO x is to be released from the NO x occluding catalyst 15, auxiliary fuel is injected into a combustion chamber 2 at timing which is after the completion of injection of fuel into the combustion chamber 2 performed to generate an engine output and at which the fuel is combustible. At this time, the auxiliary fuel is injected so that the air/fuel ratio A/F of combustion gas in the combustion chamber 2 does not become a minimum allowable air fuel ratio M or lower at which SO x captured by the SO x trap catalyst 13 is not released. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：为了防止从SO
x 捕集催化剂13排出SO x 。解决方案： 包含在废气中的用于捕集SO x SB的捕集催化剂13安装在位于NO x 阻塞催化剂15上游的发动机排气通道中。当NO x 从NO x 阻塞催化剂15释放，在燃料进入燃烧室2完成后的时刻将辅助燃料喷射到燃烧室2中， 产生发动机输出，燃料可燃。 此时，辅助燃料被喷射，使得燃烧室2中的燃烧气体的空气/燃料比A / F不会成为最小允许空燃比M或更低，其中SO x < 由捕集催化剂13捕获的捕集催化剂13未被释放。 版权所有（C）2010，JPO＆INPIT -
公开(公告)号：JP2009236031A
公开(公告)日：2009-10-15
申请号：JP2008083894
申请日：2008-03-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATA YUKA , NISHIOKA HIROMASA , OTSUKI HIROSHI , YOSHIDA KOHEI , ASANUMA TAKAMITSU
CPC classification number: Y02A50/2322
Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of promptly raising the temperature of a catalyst disposed under a floor, in an exhaust gas purifier for an internal combustion engine. SOLUTION: The exhaust gas purifier for the internal combustion engine, comprises one or more under-floor catalysts 5 provided in an exhaust passage 2 of the internal combustion engine 1 and at a part passing through a lower side of a floor 101 of a vehicle on which the internal combustion engine 1 is mounted, and purifying exhaust gas; a front-stage catalyst 3 provided in the exhaust passage 2 of the internal combustion engine 1 and at a part upstream of the part passing through the lower side of the floor 101 of the vehicle 100; and an adsorption device 4 provided immediately upstream of at least one of the under-floor catalyst 5 and raising temperature by adsorbing predetermined components of the exhaust gas flowing therein to produce heat. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供一种在内燃机的排气净化器中能够迅速提高布置在地板下方的催化剂的温度的技术。 解决方案：用于内燃机的排气净化器包括设置在内燃机1的排气通道2中的一个或多个地板下催化剂5，以及穿过内燃机1的底板101的下侧的部分 安装有内燃机1的车辆，净化废气; 设置在内燃机1的排气通路2中的前段催化剂3和通过车辆100的底板101的下侧的部分的上游的部分; 以及吸附装置4，其通过吸附在其中流动的排气的预定成分产生热量而紧邻至少一个底板下催化剂5的上游和升温。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009228525A
公开(公告)日：2009-10-08
申请号：JP2008073629
申请日：2008-03-21
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YOSHIDA KOHEI , ASANUMA TAKAMITSU , NISHIOKA HIROMASA , NAKATA YUKA , CHIBA KOICHIRO
CPC classification number: Y02A50/2348
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine can surely capture and continuously eliminate SOx in exhaust gas irrespectively of temperature. SOLUTION: A pair of SOx trap catalysts 13, 14 is arranged in series in an engine exhaust passage along a flow of exhaust gas. When SOx should be discharged from the upstream SOx trap catalyst 13, an air-fuel ratio of exhaust gas flowing in the upstream SOx trap catalyst 13 is enriched and an air-fuel ratio of exhaust gas flowing in the downstream SOx trap catalyst 14 is kept lean by joining the exhaust gas of the rich air-fuel ratio flowing from the upstream SOx trap catalyst 13 at that time with exhaust gas of a lean air-fuel ratio flowing in a bypass flow path 29. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：为了提供一种内燃机的废气排放控制装置，可以可靠地捕获并连续地消除废气中的SO x，而不管温度如何。 解决方案：沿着排气流将一对SOx捕集催化剂13,14串联布置在发动机排气通道中。 当从上游SOx捕集催化剂13排出SOx时，在上游SOx捕集催化剂13中流动的废气的空燃比被富集，并且保持在下游SOx捕集催化剂14中流动的排气的空燃比 此时，从上游SOx捕集催化剂13流出的富空燃比的废气与在旁路流路29中流动的稀空燃比的废气接合。（COPYRIGHT）（C） 2010年，JPO＆INPIT
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公开(公告)号：JP2009209733A
公开(公告)日：2009-09-17
申请号：JP2008052422
申请日：2008-03-03
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NISHIOKA HIROMASA , ASANUMA TAKAMITSU , YOSHIDA KOHEI , OTSUKI HIROSHI , NAKATA YUKA
CPC classification number: Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide technology capable of inhibiting drop of exhaust emission control performance in an exhaust emission control device for an internal combustion engine. SOLUTION: This device is provided with: an exhaust emission control catalyst 6 provided in an exhaust gas passage of the internal combustion engine and purifying exhaust gas; an adsorption device 5 which is provided at an upstream of the exhaust emission control catalyst and of which temperature rises to upper limit temperature due to heat generation by adsorption of flowing-in first component and drops after reaching the upper limit temperature; and a heat generation component supply means 10 supplying second component generating reaction heat in the exhaust emission control catalyst before start of temperature drop of the adsorption device. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供能够抑制内燃机排气排放控制装置中排气排放控制性能下降的技术。 解决方案：该装置设置有：排气排放控制催化剂6，其设置在内燃机的废气通道中并净化废气; 吸附装置5，其设置在废气排放控制催化剂的上游，并且由于通过吸入流入的第一成分而产生的热量，温度上升到上限温度，并且在达到上限温度后下降; 以及在吸附装置的温度下降开始之前，在废气排放控制催化剂中供给产生反应热的第二成分的发热成分供给装置10。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009095872A
公开(公告)日：2009-05-07
申请号：JP2007271298
申请日：2007-10-18
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OTSUKI HIROSHI , ASANUMA TAKAMITSU , YOSHIDA KOHEI
Abstract: PROBLEM TO BE SOLVED: To provide a casting method where a core made of heat resistant glass can be easily and securely removed after casting.
SOLUTION: In the casting method utilizing the core 1 made of heat resistant glass, the surface of the core body 1a before casting is coated with a metal made passive by coming into contact with fluorine, after casting, the surface of a casting body 4a demolded from a mold 2 is filmed with the metal, and subsequently, the casting 4 in a state of incorporating the cast core 1 inside is immersed into a hydrofluoric acid solution.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种铸造方法，其中在铸造后可以容易且可靠地除去由耐热玻璃制成的芯。 解决方案：在使用由耐热玻璃制成的芯1的铸造方法中，铸造前的芯体1a的表面被涂覆有与氟接触的被动的金属，在铸造之后，铸件的表面 从模具2脱模的主体4a被金属成膜，然后将铸造内芯1内的铸造件4浸入氢氟酸溶液中。 版权所有（C）2009，JPO＆INPIT
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