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公开(公告)号：JP2008106685A
公开(公告)日：2008-05-08
申请号：JP2006290873
申请日：2006-10-26
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TSUJIMOTO KENICHI , ODA TOMIHISA , UEDA TAKANOBU , NIIMI KUNIAKI
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of appropriately continuing S-regeneration and PM-regeneration even under a low load condition of the internal combustion engine. SOLUTION: The exhaust emission control device for the internal combustion engine adds fuel for recovering an exhaust emission capacity of the exhaust emission control device, or the like. An electric heating type catalyst is arranged in a spray reach section by an injector and raises temperature by electricity supply. A regeneration control means executes control supplying electricity to the electric heating type catalyst and continuing S-regeneration and PM-regeneration when low load operation continues for a predetermined period of time after start of S-regeneration and PM-regeneration. Temperature of the added fuel and exhaust gas is raised and temperature of an exhaust gas passage and the exhaust emission control device rise by supplying electricity to the electric heating type catalyst in such a manner. Consequently, since the exhaust emission control device or the like can be maintained at appropriate temperature even under a low load condition of the internal combustion engine, S-regeneration and PM-regeneration can be appropriately continued. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 解决的问题：即使在内燃机的低负载条件下，也能够适用于能够适当地继续S再生和PM再生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添加用于回收废气排放控制装置的废气排放能力的燃料等。 电加热型催化剂通过喷射器布置在喷雾到达部分中，并通过供电提高温度。 再生控制装置执行向电加热型催化剂供电的控制，并且在开始S再生和PM再生之后的低负载运行持续预定时间段时继续S再生和PM再生。 通过以这种方式向电加热型催化剂供电，增加的燃料和废气的温度升高，排气通道和废气排放控制装置的温度上升。 因此，即使在内燃机的低负载状态下，由于废气排放控制装置等也可以保持适当的温度，所以可以适当地继续S再生和PM再生。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008019764A
公开(公告)日：2008-01-31
申请号：JP2006191517
申请日：2006-07-12
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NIIMI KUNIAKI , ODA TOMIHISA , UEDA TAKANOBU , TSUJIMOTO KENICHI
Abstract: PROBLEM TO BE SOLVED: To improve exhaust emission control capacity as the whole exhaust emission control system, by restraining the temperature of an exhaust emission control catalyst except for a partial exhaust emission control catalyst, from excessively lowering, while efficiently raising the temperature of part of exhaust emission control catalyst, in the exhaust emission control system of an internal combustion engine having: an exhaust passage branching off into a plurality of branch passages in the middle; and the exhaust emission control catalyst respectively arranged in the respective branch passages.
SOLUTION: When raising the temperature of the part of exhaust emission control catalyst by a temperature raising means, a flow rate of exhaust gas flowing in a part of a branch passage provided with the part of exhaust emission control catalyst is reduced, and the flow rate of the exhaust gas flowing in the branch passage except for the part of the branch passage is increased by a reduction quantity of the flow rate of the exhaust gas in the part of branch passage (S106). At this time, the reduction quantity when reducing the flow rate of the exhaust gas flowing in the part of the branch passage, is determined (S104, S105) based on a difference between the temperature of the exhaust emission control catalyst arranged in the branch passage except for the part of the branch passage, and the temperature of the exhaust gas.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：为了通过抑制除了部分废气排放控制催化剂之外的排气排放控制催化剂的温度来降低作为整个废气排放控制系统的废气排放控制能力，同时有效地提高温度 排气排放控制催化剂的一部分在内燃机的废气排放控制系统中具有排气通道，分配到中间的多个分支通道中; 和排气排放控制催化剂分别配置在各分支流路中。 解决方案：通过升温装置提高废气排放控制催化剂的一部分的温度时，在排气排放控制催化剂的一部分的分支通路的一部分中流动的排气的流量减少， 在分支通路的一部分以外的分支通道中流动的废气的流量通过分支通道的一部分中的排气的流量的减少量而增加（S106）。 此时，根据配置在分支通道中的排气排放控制催化剂的温度之间的差异来确定减少在分支通道部分中流动的排气的流量的减少量（S104，S105） 除了分支通道的一部分和废气的温度之外。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008014239A
公开(公告)日：2008-01-24
申请号：JP2006186760
申请日：2006-07-06
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NIIMI KUNIAKI , ODA TOMIHISA , UEDA TAKANOBU , TSUJIMOTO KENICHI
Abstract: PROBLEM TO BE SOLVED: To provide a technology which can efficiently raise the temperature of a catalyst device by an electric heater.
SOLUTION: A heating part in an electric heater is formed so as to spirally surround the sectional center in a cross section perpendicular to a passing direction of exhaust in an EHC1, and provided with a plurality of positive electrodes 10-14 and of negative electrodes 20-29 between both ends thereof. By changing energization between any one of positive electrodes and any one of negative electrodes, a region not reaching active temperature in the EHC1 can be heated on a priority basis.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种能够通过电加热器有效地提高催化剂装置的温度的技术。 解决方案：电加热器中的加热部分形成为在垂直于EHC1中的排气通过方向的横截面中螺旋地围绕截面中心，并且设置有多个正极10-14和 两端之间的负极20-29。 通过改变正电极和任何一个负电极之间的通电，可以优先加热EHC1中未达到有效温度的区域。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007327481A
公开(公告)日：2007-12-20
申请号：JP2006161499
申请日：2006-06-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TSUJIMOTO KENICHI , ODA TOMIHISA , UEDA TAKANOBU , NIIMI KUNIAKI
Abstract: PROBLEM TO BE SOLVED: To restrain an excessive temperature drop in an exhaust emission control catalyst, when an operation state of an internal combustion engine becomes a deceleration operation state, in an exhaust emission control system of the internal combustion engine. SOLUTION: In this invention, a catalyst 4 with a heater is arranged in an exhaust passage on the upstream side of the exhaust emission control catalyst 5, and a bypass passage 7 for bypassing the exhaust emission control catalyst 5 and the catalyst 4 with the heater, is connected to the exhaust passage 2. When the operation state of the internal combustion engine 1 becomes the deceleration operation state, an electric current is carried to the catalyst 4 with the heater, and a flow rate of exhaust gas flowing by passing through the catalyst 4 with the heater and the exhaust emission control catalyst 5, is reduced by increasing a flow rate of exhaust gas flowing in the bypass passage 7. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 解决的问题为了抑制排气排放控制催化剂的过度的温度下降，在内燃机的运转状态成为减速运转状态时，在内燃机的废气排放控制系统中。 解决方案：在本发明中，在废气排放控制催化剂5的上游侧的排气通道中设置有具有加热器的催化剂4，以及用于旁路排气排放控制催化剂5和催化剂4的旁通通路7 加热器与排气通道2连接。当内燃机1的运转状态变为减速运转状态时，利用加热器向催化剂4输送电流，排气的流量由 通过加热器和废气排放控制催化剂5通过催化剂4，通过增加在旁路通道7中流动的废气的流量来减少。（C）2008，JPO＆INPIT
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公开(公告)号：JP2007315237A
公开(公告)日：2007-12-06
申请号：JP2006144139
申请日：2006-05-24
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ODA TOMIHISA , UEDA TAKANOBU , NIIMI KUNIAKI , TSUJIMOTO KENICHI , HIROTA SHINYA
Abstract: PROBLEM TO BE SOLVED: To maintain the NOx purification capacity of an NOx catalyst and the filter function of a filter in a state suitable for exhaust emission control, by properly purifying NOx in exhaust gas and removing particulate matter, when performing the exhaust emission control by arranging the NOx catalyst and the filter for collecting the particulate matter, in an exhaust passage of an internal combustion engine. SOLUTION: A bypass passage is arranged for connecting the exhaust passage positioned between the NOx catalyst and the filter from the exhaust passage on the upstream of the NOx catalyst. A flow of exhaust gas can be switched to a first exhaust flow state being the NOx catalyst side or a second exhaust flow state being the bypass passage side. A differential pressure detecting means is arranged for detecting differential pressure between exhaust pressure in the exhaust passage on the upstream side of a branch point and exhaust pressure in the exhaust passage on the downstream side of the filter. Clogging of the NOx catalyst and/or clogging of the filter are determined on the basis of first differential pressure when the flow of the exhaust gas is put in the first exhaust flow state and second differential pressure when the flow of the exhaust gas is put in the second exhaust flow state. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题为了通过适当地净化废气中的NOx并除去颗粒物质，在适于废气排放控制的状态下，维持NOx催化剂的NOx净化能力和过滤器的功能，当执行排气 在内燃机的排气通道中配置NOx催化剂和用于收集颗粒物质的过滤器的排放控制。 解决方案：旁路通道布置成用于将位于NOx催化剂和过滤器之间的排气通道从NOx催化剂上游的排气通道连接起来。 可以将废气流切换为作为旁路通路侧的作为NOx催化剂侧的第一排气流状态或第二排气流状态。 差压检测装置被设置用于检测分支点上游侧的排气通道中的排气压力与过滤器下游侧排气通道中的排气压力之间的差压。 基于排气的流量处于第一排气流动状态时的第一压差和排气的流量的第二压差来确定NOx催化剂的堵塞和/或过滤器的堵塞 第二排气流状态。 版权所有（C）2008，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2007120319A
公开(公告)日：2007-05-17
申请号：JP2005309753
申请日：2005-10-25
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： UEDA TAKANOBU , ODA TOMIHISA , NIIMI KUNIAKI , TSUJIMOTO KENICHI
Abstract: PROBLEM TO BE SOLVED: To secure excellent fuel economy by using one fuel adding valve. SOLUTION: A postprocessing system 20 is arranged in an exhaust passage of an internal combustion engine, and has an expansion chamber 22 in an upstream part. The exhaust passage is branched off into a first exhaust passage 24a and a second exhaust passage 24b on the downstream end of this expansion chamber 22. In this case, NOx storage reducing catalysts 25a and 25b and particulate filters 26a and 26b are respectively arranged in the respective exhaust passages 24a and 24b. For example, when NOx must be released from the NOx storage reducing catalyst 25a, fuel is added from the fuel adding valve 33 by closing the second exhaust passage 24b by an exhaust control valve 28b. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：通过使用一个燃料添加阀来确保优异的燃料经济性。 解决方案：后处理系统20布置在内燃机的排气通道中，并且在上游部分具有膨胀室22。 排气通道分支到该膨胀室22的下游端的第一排气通道24a和第二排气通道24b中。在这种情况下，NOx储存还原催化剂25a和25b以及颗粒过滤器26a和26b分别布置在 相应的排气通道24a和24b。 例如，当从NOx吸留还原催化剂25a排出NOx时，通过排气控制阀28b关闭第二排气通路24b，从燃料添加阀33添加燃料。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2006250001A
公开(公告)日：2006-09-21
申请号：JP2005066208
申请日：2005-03-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NIIMI KUNIAKI , ODA TOMIHISA , UEDA TAKANOBU
CPC classification number: B01D53/9431 , B01D53/90 , B01D2251/20 , F01N3/0253 , F01N3/0821 , F01N3/0871 , F01N3/0878 , F01N9/00 , F01N13/011 , F01N2240/36 , F01N2510/06 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide technology for reproducing purification capability of an exhaust emission control device securely or efficiently in an exhaust emission control system constituted by combining a plurality of branched passages branched from an exhaust passage with the exhaust emission control devices provided in each branched passage. SOLUTION: When reproducing purification capability of the first exhaust emission control device provided in the first branched passage, a second valve provided in the second branched passage is opened up to first predetermined intermediate opening, and a first valve provided in the first branched passage is fully closed. After that, fuel is added from a first fuel addition valve provided in the first branched passage. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种在排气排放控制系统中可靠或有效地再现排气排放控制装置的净化能力的技术，该废气排放控制系统是通过组合由排气通道分支的多个分支通道与设置的废气排放控制装置 在每个分支通道。 解决方案：当再现第一分支通道中设置的第一排气排放控制装置的净化能力时，设置在第二分支通道中的第二阀打开到第一预定中间开口，第一阀设置在第一分支通道 通道完全关闭。 此后，从设置在第一分支通道中的第一燃料添加阀添加燃料。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006214388A
公开(公告)日：2006-08-17
申请号：JP2005029649
申请日：2005-02-04
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： UEDA TAKANOBU , MIZUTA TAMETOSHI , KARITA KOJI , ODA TOMIHISA , NIIMI KUNIAKI
CPC classification number: F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N13/0097 , F01N13/011 , F01N2240/36 , F01N2410/12 , F01N2570/14 , F01N2610/03 , Y02A50/2344
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine, restraining uneven supply of a reducer to an occlusion reduction type NOx catalyst to suitably perform functional regeneration of the NOx catalyst.
SOLUTION: This exhaust emission control device of an internal combustion engine includes: a casing 15 forming part of an exhaust passage 4 of an engine 1 and housing occlusion reduction type NOx catalysts 12, 13 inside; and a reducer supply means 11 for supplying the reducer into the casing on the upstream side of the NOx catalyst, wherein the reducer supply means inject flat the reducer in the direction crossing the center line CL of the NOx catalyst from the injection hole 11a disposed in the casing.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 解决问题的方案为了提供内燃机的废气排放控制装置，可以抑制还原剂向闭塞还原型NOx催化剂的不均匀供给，以适当地进行NOx催化剂的功能再生。 解决方案：内燃机的废气排放控制装置包括：内部形成发动机1的排气通路4的一部分的壳体15和内部的封闭还原型NOx催化剂12,13; 以及还原剂供给单元11，用于将还原剂供给到NOx催化剂的上游侧的壳体中，其中减速器供给单元从与NOx配置的喷射孔11a相交的方向将NOx还原剂的中心线CL与中心线CL交叉的方向 套管。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006194189A
公开(公告)日：2006-07-27
申请号：JP2005007980
申请日：2005-01-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NIIMI KUNIAKI , ODA TOMIHISA , UEDA TAKANOBU
Abstract: PROBLEM TO BE SOLVED: To make an exhaust gas of a proper flow rate flowing to an exhaust emission control device at exhaust cleaning and to raise a temperature of the exhaust emission control device to a temperature suitable for the exhaust cleaning in the exhaust emission control device for cleaning the exhaust gas from an internal combustion engine. SOLUTION: The exhaust emission control device for the internal combustion engine is provided with a plurality of exhaust passages 17, 18 flowing with the exhaust gas from the internal combustion engine; a plurality of exhaust adjustment valves 8, 14 for adjusting a flow rate of exhaust gas of the exhaust passage; a plurality of exhaust cleaning catalysts 6, 12 having oxidation ability and performing cleaning of the exhaust gas flowing in the exhaust passage; fuel feeding means 7, 13 for feeding the fuel to the exhaust gas flowing into the plurality of exhaust cleaning catalysts; and an exhaust adjustment valve control means for making opening of the exhaust adjustment valve in one exhaust passage provided with one exhaust cleaning catalyst and in the respective exhaust passages other than the exhaust passage to opening in which a flow rate of the exhaust gas in one exhaust passage becomes a predetermined flow rate when the temperature of one exhaust cleaning catalyst of the plurality of exhaust cleaning catalysts is raised by feeding the fuel by the fuel feeding means. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了使排气净化中排放排放控制装置流动的合适流量的废气排出，并且将排气排放控制装置的温度升高到适于排气净化的温度 用于清洁来自内燃机的废气的排放控制装置。 解决方案：用于内燃机的废气排放控制装置设有与来自内燃机的废气一起流动的多个排气通道17,18; 多个用于调节排气通道排气流量的排气调节阀8,14; 多个排气净化催化剂6,12具有氧化能力，并对在排气通道中流动的废气进行清洗; 用于将燃料供给到流入多个废气清洁催化剂的排气的燃料供给装置7,13; 以及排气调节阀控制装置，用于使排气调节阀在设置有一个废气净化催化剂的一个排气通道中以及排气通道以外的各个排气通道中开启，排气调节阀的排气在一个排气中的流量 当通过由燃料供给装置供给燃料而升高多个排气净化催化剂中的一个排气净化催化剂的温度时，通道变为预定流量。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006016997A
公开(公告)日：2006-01-19
申请号：JP2004193451
申请日：2004-06-30
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ODA TOMIHISA , HIROTA SHINYA , UEDA TAKANOBU , KENJO AKIRA
Abstract: PROBLEM TO BE SOLVED: To provide a fuel fractional distillation device of an internal combustion engine capable of precisely controlling properties of gaseous phase fuel produced by fractional distillation and improving yield of the gaseous phase fuel.
SOLUTION: This fuel fractional distillation device 18 of the internal combustion engine furnished with a fractional distillation part 20 connected to a fuel feeding system 11 of the internal combustion engine 1 and to fractionally distillate supplied fuel to a gaseous phase and a liquid phase and a flow rate adjusting means 22 to adjust a flow rate of fuel to supply to the fractional distillation part is furnished with a gaseous phase fuel temperature detection means 27 to detect temperature of the gaseous phase fuel in the fractional distillation part, a liquid phase fuel temperature detection means 28 to detect temperature of the liquid phase fuel in the fractional distillation part and a flow rate correction means 36 to correct a flow rate of fuel supplied from the flow rate adjusting means in accordance with a temperature difference between the liquid phase fuel temperature detected by the liquid phase fuel temperature detection means and the gaseous phase fuel temperature detected by the gaseous phase fuel temperature detection means.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供能够精确控制由分馏产生的气相燃料的性质并提高气相燃料产率的内燃机的燃料分馏装置。 解决方案：内燃机的该燃料分馏装置18配备有连接到内燃机1的燃料供给系统11的分馏部分20，并将供应的燃料分馏出气态和液相 调节向分馏部供给的燃料的流量的流量调整单元22具备气相燃料温度检测单元27，用于检测分馏部中的气相燃料的温度，液相燃料 用于检测分馏部中的液相燃料的温度的温度检测单元28以及根据液相燃料温度的温度差来校正从流量调节单元供给的燃料的流量的流量校正单元36 由液相燃料温度检测装置和气相燃料温度检测器检测 由气相燃料温度检测装置控制。 版权所有（C）2006，JPO＆NCIPI
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