-
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
-
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
-
公开(公告)号：JP2008115838A
公开(公告)日：2008-05-22
申请号：JP2006302541
申请日：2006-11-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TOSHIOKA TOSHISUKE , ASANUMA TAKAMITSU , OHASHI NOBUMOTO , YOSHIDA KOHEI
Abstract: PROBLEM TO BE SOLVED: To provide a technique to further improve a NOx reducing efficiency by combining a plurality of means to reduce an exhaust air-fuel ratio and setting a rate of a reducing the air-fuel ratio by each means to an appropriate value, in an exhaust emission control device for an internal combustion engine. SOLUTION: A rate of reducing the air-fuel ratio by a fuel adding valve 7 is made lower as according an evaporation rate of fuel added from the fuel adding valve 7 is lower, when NOx is reduced by combining a rate of reducing the air-fuel ratio of gas discharged from the combustion chamber of the internal combustion engine 1 and a rate of reducing the air-fuel ratio by adding fuel from the fuel adding valve 7 and reducing the air-fuel ratio of exhaust gas led to flow into a storage-reduction type NOx catalyst 6 to a target air-fuel ratio. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：为了提供一种技术，通过组合多个装置来降低排气空燃比并且通过各种方式将空燃比降低的速率设定为进一步提高NOx还原效率 适用于内燃机的废气排放控制装置。 解决方案：随着燃料添加阀7添加的燃料的蒸发速率越低，通过加入燃料添加阀7来降低空燃比的速度越小，当通过组合还原速率来降低NOx时 从内燃机1的燃烧室排出的气体的空燃比和通过从燃料添加阀7添加燃料而降低空燃比并且降低排气的空燃比导致流动的速度 进入储存还原型NOx催化剂6至目标空燃比。 版权所有（C）2008，JPO＆INPIT
-
公开(公告)号：JP2008106716A
公开(公告)日：2008-05-08
申请号：JP2006292272
申请日：2006-10-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TSUKAMOTO YOSHIHISA , OHASHI NOBUMOTO
Abstract: PROBLEM TO BE SOLVED: To inhibit deterioration of a NOx conversion rate and drop of NOx storage capacity by keeping the temperature of a NOx catalyst excessively high in an internal combustion engine provided with a storage reduction type NOx catalyst.
SOLUTION: In fuel addition control relating to a NOx reduction process in a NOx catalyst, an integrated value of periods during which catalyst bed temperature Tn (NOx storage integration period ΣSs) is equal to or higher than NOx storage upper limit temperature Tj in a reference period Sdi is calculated (S102), and fuel addition pattern is changed to keep fuel addition interval Sin long (S104) when it is determined that NOx storage integration period ΣSs is shorter than a second reference period Sd2 (S103).
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：通过在设置有储存还原型NOx催化剂的内燃机中将NOx催化剂的温度保持在过高的水平来抑制NOx转化率的劣化和NOx储存容量的下降。 ＆lt; P＆gt;解决方案：在与NOx催化剂中的NOx还原处理有关的燃料添加控制中，催化剂床温度Tn（NOx存储积存期间ΣSs）为NOx吸留上限温度Tj 在S102中计算参考周期Sdi（S102），并且当确定NOx存储积分周期ΣSs短于第二基准周期Sd2时，改变燃料添加模式以保持燃料添加间隔Sin长（S104）（S103）。 版权所有（C）2008，JPO＆INPIT
-
公开(公告)号：JP2007154731A
公开(公告)日：2007-06-21
申请号：JP2005349805
申请日：2005-12-02
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TOSHIOKA TOSHISUKE , ASANUMA TAKAMITSU , OHASHI NOBUMOTO , TSUKAMOTO YOSHIHISA
CPC classification number: F01N3/0814 , B01D53/90 , B01D53/9422 , B01D53/9486 , B01D53/9495 , B01D2251/208 , B01D2255/91 , F01N3/035 , F01N3/0835 , F01N3/0842 , F01N3/106 , F01N3/2006 , F01N9/00 , F01N11/002 , F01N11/007 , F01N13/0097 , F01N2610/03 , F02B37/00 , F02D41/0255 , F02D41/027 , F02D41/0275 , F02D41/10 , Y02T10/26 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To inhibit great quantity of HC from flowing out of a HC catalyst without being consumed in the HC catalyst when HC is supplied to the HC catalyst. SOLUTION: This exhaust emission control device is provided with the HC catalyst 14 having capability oxidizing HC, and capability retaining HC and discharging retained HC, and having a specific condition where discharge quantity of retained HC is greater than HC oxidation quantity, and executes HC supply control supplying the HC catalyst with HC for a specific purpose. When HC supply control is executed and the specific condition is satisfied, HC quantity supplied to the HC catalyst 14 is reduced or HC supply control is suspended by HC supply control. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：当向HC催化剂供应HC时，抑制大量HC从HC催化剂流出而不被HC催化剂消耗。 解决方案：该废气排放控制装置设有具有氧化HC能力的HC催化剂14和保持HC并排出HC的能力，并具有其中HC的排放量大于HC氧化量的特定条件，以及 为了特定目的，执行向HC催化剂供应HC的HC供应控制。 当执行HC供应控制并且满足特定条件时，提供给HC催化剂14的HC量减少或通过HC供应控制暂停HC供应控制。 版权所有（C）2007，JPO＆INPIT
-
Patent Agency Ranking
公开(公告)号：JP2006189023A
公开(公告)日：2006-07-20
申请号：JP2005174200
申请日：2005-06-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OHASHI NOBUMOTO , KANEKO SATOSHI , SAKASHITA MUNEYASU
CPC classification number: Y02T10/22
Abstract: PROBLEM TO BE SOLVED: To improve a catalyst carrier in performance of oxygen discharge to an exhaust passage and performance of oxygen absorption from the exhaust passage. SOLUTION: An exhaust emission control device comprises the catalyst carrier 3 made of solid electrolyte, an exhaust passage side electrode 7 provided on an exhaust passage 3 side of the catalyst carrier 3, an atmosphere side electrode 4 cooperating with the exhaust passage side electrode 7 in generating an electric potential difference in the catalyst carrier 3, and a control means 10 for applying positive (+) voltage to the exhaust passage side electrode 7 and applying negative (-) voltage to the atmosphere side electrode 4 when exhaust gas G flowing into the exhaust passage 23a is in a rich air-fuel ratio and for applying negative (-) voltage to the exhaust passage side electrode 7 and applying positive (+) voltage to the atmosphere side electrode 4 when the exhaust gas G flowing into the exhaust passage 23a is in a lean air-fuel ratio. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了改善催化剂载体的性能，排放通道的氧气排放和排气通道的吸氧性能。 解决方案：排气排放控制装置包括由固体电解质制成的催化剂载体3，设置在催化剂载体3的排气通道3侧的排气通道侧电极7，与排气通道侧配合的气氛侧电极4 在催化剂载体3中产生电位差的电极7和用于在排气G被施加正（+）电压至排气通道侧电极7并向气氛侧电极4施加负（ - ）电压的控制装置10 流入排气通路23a的空气燃料比浓度大，向排气通路侧电极7施加负的（ - ）电压，在排气G流入 排气通路23a处于贫空燃比。 版权所有（C）2006，JPO＆NCIPI
-
公开(公告)号：JP2013231390A
公开(公告)日：2013-11-14
申请号：JP2012103692
申请日：2012-04-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OHASHI NOBUMOTO , HABA YUKI , MIYAKE TERUHIKO
IPC: F01P7/16
CPC classification number: Y02T10/121
Abstract: PROBLEM TO BE SOLVED: To execute a water-circulating measure at an engine start for a proper period to eliminate deviation in a cooling water temperature at the engine start.SOLUTION: A vehicle includes: a cooling device having a cooling water path for circulating cooling water and an adjusting means capable of adjusting a water circulation amount of the cooling water, the cooling water path further contains an internal engine cooling path for cooling a body of an internal combustion engine with a cylinder block and a cylinder head; and a water temperature detection means capable of detecting a cooling water temperature in an outer engine cooling water path which is a water path portion other than the internal engine cooling water path of the cooling path. A control device for the cooling device for controlling the cooling device includes a fluctuation range specifying means for specifying a fluctuation range of the detected cooling water temperature, and a water circulating control means for circulating water when starting the internal combustion engine via the adjusting means, and stopping the water circulation when the detected water temperature is a predetermined one or less and the specified fluctuation range is a first reference value or smaller.
Abstract translation: 要解决的问题：在发动机启动下执行适当周期的水循环措施，以消除发动机起动时的冷却水温度的偏差。解决方案：一种车辆包括：冷却装置，具有用于循环冷却的冷却水路径 水和能够调节冷却水的水循环量的调节装置，冷却水路径还包含用于冷却具有气缸体和气缸盖的内燃机的主体的内部发动机冷却路径; 以及能够检测除了冷却路径的内部发动机冷却水路径以外的水路部分的外部发动机冷却水路径中的冷却水温度的水温检测装置。 用于控制冷却装置的冷却装置的控制装置包括用于指定检测到的冷却水温度的波动范围的波动范围指定装置和用于在经由调节装置启动内燃机时使水循环的水循环控制装置， 并且当检测到的水温为预定值以下且停止水循环，并且规定的波动范围为第一基准值以下。
-
公开(公告)号：JP2010261388A
公开(公告)日：2010-11-18
申请号：JP2009113583
申请日：2009-05-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KOBAYAKAWA SATOSHI , ODA TOMIHISA , OHASHI NOBUMOTO , KAMOSHITA SHINJI , KAWAGUCHI BUNGO
CPC classification number: Y02T10/24
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine capable of restraining the occurrence of an ammonia slip due to deterioration from a selective reduction catalyst. SOLUTION: This exhaust emission control device has a selective reduction catalyst converter 35 for carrying the selective reduction catalyst, a urea water adding valve 70 for adding urea to the selective reduction catalyst, and NOx sensors 95A and 95B arranged on the outlet side and the inlet side of the selective reduction catalyst converter 35, and is configured to control an addition amount of urea water based on output of the NOx sensors so that an ammonia adsorption amount of the selective reduction catalyst will become a target adsorption amount corresponding to a saturated adsorption amount of the selective reduction catalyst, to add urea water for causing the ammonia slip in a bed temperature lowering process after finishing heating of the selective reduction catalyst heated up to reach a predetermined high temperature region where ammonia adsorbing capacity relatively decreases, and to correct the saturated adsorption amount used for controlling an addition amount based on an ammonia amount required until the ammonia slip has occurred. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够抑制由于选择还原型催化剂劣化而产生氨滑移的内燃机的废气排放控制装置。 解决方案：该废气排放控制装置具有用于携带选择还原催化剂的选择还原催化剂转化器35，用于向选择还原催化剂添加尿素的尿素水添加阀70，以及布置在出口侧的NOx传感器95A和95B 和选择还原催化剂转化器35的入口侧，并且被配置为基于NOx传感器的输出来控制尿素水的添加量，使得选择还原催化剂的氨吸附量成为对应于 饱和吸附量的选择还原催化剂，在加热到选择还原催化剂的加热完成加热到氨吸附能力相对降低的预定高温区域之后，在床温降低过程中添加尿素水，导致氨滑移，并且 校正用于控制添加量的饱和吸附量 发生氨滑移所需的氨量。 版权所有（C）2011，JPO＆INPIT
-
公开(公告)号：JP2010127182A
公开(公告)日：2010-06-10
申请号：JP2008302890
申请日：2008-11-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： IIDA SHINGO , OHASHI NOBUMOTO , SOFUE YUICHI , KURISAKA ITSUYA , YAMASHITA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine suppressing emission of carbon monoxide and unburnt hydrocarbon. SOLUTION: The exhaust emission control device for an internal combustion engine includes: a NO x occlusion catalyst; and an oxidization catalyst disposed downstream of the NO x occlusion catalyst and having an oxygen occlusion capacity. The exhaust emission control device calculates an oxygen occlusion amount of the oxidation catalyst by detecting a temperature of the oxidation catalyst, when a temperature of the NO x occlusion catalyst is increased to a temperature allowing the release of SO x to perform processing of recovery from sulfur poisoning or higher, and a target air-fuel ratio of exhaust gas is calculated based on an oxygen occlusion amount and a target time for performing a predetermined rich control, and the rich control is performed based on the calculated target air-fuel ratio of the exhaust gas. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 解决的问题：提供一种抑制一氧化碳和未燃烧烃的排放的内燃机的废气排放控制装置。 解决方案：一种用于内燃机的废气排放控制装置包括：NOS SB>阻塞催化剂; 以及设置在NO SB SB吸附催化剂下游并具有吸氧能力的氧化催化剂。 废气排放控制装置通过检测氧化催化剂的温度来计算氧化催化剂的氧气吸留量，当NO
x 阻塞催化剂的温度升高到允许释放SO 2的温度时， SB> x ，以进行从硫中毒以上的回收处理，并且基于用于进行预定浓控制的氧吸留量和目标时间计算废气的目标空燃比，富 基于计算出的废气的目标空燃比进行控制。 版权所有（C）2010，JPO＆INPIT -
公开(公告)号：JP2010019104A
公开(公告)日：2010-01-28
申请号：JP2008178348
申请日：2008-07-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OHASHI NOBUMOTO , HAYASHI ATSUSHI , IIDA SHINGO , KURISAKA ITSUYO , YAMASHITA YOSHINORI , HIROTA SHINYA , ASANUMA TAKAMITSU
Abstract: PROBLEM TO BE SOLVED: To more surely raise temperature of a NOx catalyst to temperature at which SOx can be discharged or maintain temperature of the catalyst at that temperature during execution of SOx poisoning recovery control. SOLUTION: When it is difficult to raise temperature of the NOx catalyst to the temperature at which SOx can be discharged only by supplying reducer to the NOx catalyst or to maintain temperature of the NOx catalyst at that temperature during execution of SOx poisoning recovery control, reducer is supplied to the NOx catalyst while reducing the flow rate of exhaust gas passing through the NOx catalyst. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：为了更可靠地将NOx催化剂的温度升高到可以排出SOx的温度，或者在执行SOx中毒恢复控制期间保持该温度下的催化剂的温度。 解决方案：只有通过向NOx催化剂供应还原剂或者在执行SOx中毒恢复期间将NOx催化剂的温度维持在该温度时，难以将NOx催化剂的温度升高到仅能够排出SOx的温度 在减少通过NOx催化剂的废气的流量的同时，向NOx催化剂供给控制还原剂。 版权所有（C）2010，JPO＆INPIT
-
-
-
-
-
-
-
-
-
Search Results
86
records
(took 0.036 seconds)
