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1. 发明专利

JP2014001683A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2014001683A
公开(公告)日：2014-01-09
申请号：JP2012137458
申请日：2012-06-19
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KENJO AKIRA , NAKAYAMA SHIGEKI , TOSHIOKA TOSHISUKE , TAKADA KEI , NISHIOKA HIROMASA , YAMAMOTO ICHIRO , NAKAJIMA JUNYA
IPC分类号： F01N3/36 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/24 , F01N3/28 , F02D41/04
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To suppress enhancement in oxidation capacity in a selective reduction type NOx catalyst when a catalyst is included which has the oxidation capacity on the upstream side further than the selective reduction type NOx catalyst.SOLUTION: An exhaust emission control device of an internal combustion engine includes: an oxidation catalyst; a selective reduction type NOx catalyst provided in an exhaust passage on the downstream further than the oxidation catalyst; a trap part, provided in the exhaust passage on the downstream further than the oxidation catalyst and the upstream further than the selective reduction type NOx catalyst, for trapping matter enhancing oxidation capacity in the selective reduction type NOx catalyst; and supply means for supplying fuel to the oxidation catalyst. The device includes a control unit for reducing each supply amount of fuel and increasing a frequency of fuel supply, as a temperature of the trap part is higher when fuel is supplied to the oxidation catalyst.
摘要翻译：要解决的问题：为了抑制选择还原型NOx催化剂的氧化能力的提高，当包含上游侧的氧化能力比选择还原型NOx催化剂更高的催化剂时，可以提高氧化能力。解决方案：一种废气排放控制装置，内燃机包括：氧化催化剂; 选择还原型NOx催化剂，其设置在比氧化催化剂更下游的排气通道中; 捕集部，其设置在比氧化催化剂更靠下游的排气通道中，并且比选择还原型NOx催化剂更上游;用于捕获选择还原型NOx催化剂中氧化能力增强的物质; 以及用于向氧化催化剂供给燃料的供给装置。该装置包括用于减少燃料的每个供给量并增加燃料供给频率的控制单元，因为当向氧化催化剂供应燃料时，捕集部分的温度较高。

2. 发明专利

JP2010261320A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2010261320A
公开(公告)日：2010-11-18
申请号：JP2009110601
申请日：2009-04-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SATO MASAAKI , ODA TOMIHISA , TOSHIOKA TOSHISUKE , ASAURA SHINYA
IPC分类号： F01N3/08 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To simultaneously restrain an ammonia slip and NOx deterioration when regenerating a particulate filter. SOLUTION: A selective reduction type NOx catalyst is arranged in an exhaust passage of an internal combustion engine, and a reducing agent is supplied to its upstream side. The particulate filter is also arranged in the exhaust passage. When a filter temperature rise control performing condition is realized, filter temperature rise control is started simultaneously when stopping supply of the reducing agent, and a filter is raised in the temperature stepwise by repeating a temperature rise and temperature rise stopping. The NOx deterioration can be restrained by eliminating a waiting time up to starting the filter temperature rise control. The NOx catalyst can also be raised in the temperature stepwise, and an adsorbed ammonia discharge quantity per one time temperature rise can be restrained. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：在再生微粒过滤器时同时抑制氨滑脱和NOx劣化。解决方案：选择还原型NOx催化剂布置在内燃机的排气通道中，还原剂被供给到其上游侧。微粒过滤器也布置在排气通道中。当实现过滤器温度升高控制执行条件时，当停止供给还原剂时，同时开始过滤器温升控制，并且通过重复升温和升温停止来逐步升高过滤器的温度。通过消除开始过滤器升温控制的等待时间，可以抑制NOx劣化。也可以逐步升温NOx催化剂，并且可以抑制每一次升温时的吸附氨排出量。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2009257231A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2009257231A
公开(公告)日：2009-11-05
申请号：JP2008108098
申请日：2008-04-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAUCHI YUTAKA , ODA TOMIHISA , TOSHIOKA TOSHISUKE , ASAURA SHINYA
IPC分类号： F01N3/08 , B01D53/86 , F01N3/24 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine of which NOx adsorption catalyst has high NOx adsorption capacity and which prevent deterioration of exhaust gas properties due to emission of NOx in cold start. SOLUTION: A NOx reduction catalyst 24 reducing NOx is disposed in an engine exhaust gas passage, and the NOx adsorption catalyst 22 is disposed in the engine exhaust gas passage upstream of the NOx reduction catalyst 24. The NOx adsorption catalyst 22 adsorbs NOx flowing therein during cold start and desorbs adsorbed NOx with accompanying rise of catalyst temperature. The desorbed NOx is reduced by the NOx reduction catalyst 24. The internal combustion engine is provided with an adsorbed NOx quantity estimation means estimating quantity of NOx adsorbed by the NOx adsorption catalyst 22, and executes temperature rise control of the NOx adsorption catalyst temperature for desorbing the adsorbed NOx when the estimated quantity of NOx gets to a predetermined value or greater. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种NOx吸附催化剂具有高NO x吸附容量并且防止由于冷启动中的NOx排放导致的废气特性劣化的内燃机的废气排放控制装置。解决方案：在发动机废气通道中设置减少NOx的NOx还原催化剂24，NOx吸附催化剂22配置在NOx还原催化剂24的上游的发动机排气通路中.NO x吸附催化剂22吸附NOx 在冷起动期间流入其中并且随着催化剂温度的升高而脱附吸附NOx。通过NOx还原催化剂24还原脱附的NOx。内燃机设有吸附NO x量估计装置，用于估计NOx吸附催化剂22吸附的NOx的量，并执行用于脱附的NOx吸附催化剂温度的升温控制当NOx的估计量达到预定值或更大时吸附的NOx。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009167940A Exhaust emission control device of internal combustion engine 审中-公开
标题翻译：内燃机排气控制装置
公开(公告)号：JP2009167940A
公开(公告)日：2009-07-30
申请号：JP2008008253
申请日：2008-01-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOSHIOKA TOSHISUKE , ODA TOMIHISA , NAKAMURA YOSHITAKA
IPC分类号： F01N3/18 , B01D53/56 , B01D53/94 , F01N3/02 , F01N3/08 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To detect the concentration of urea water by an inexpensive method, by using a NO
X sensor.
SOLUTION: The exhaust emission control device is arranged with a NO
X selective reducing catalyst 15 and an oxidation catalyst 12 in an engine exhaust passage. In addition to a first urea water supplying valve 17 for supplying urea water to the NO
X selective reducing catalyst 15, a second urea water supplying valve 21 for supplying the urea water to the oxidation catalyst 12 are provided. NO
X and ammonia flowing out from the oxidation catalyst 12 when the urea water is supplied from the second urea water supplying valve 21, are detected by a NO
X sensor 40. The concentration of the urea water is detected from a detection value of the NO
X sensor 40.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过使用NO X 传感器，通过廉价的方法来检测尿素水的浓度。解决方案：排气排放控制装置在发动机排气通道中设置有NO X 选择还原催化剂15和氧化催化剂12。除了用于向NO X SB选择还原催化剂15供给尿素水的第一尿素水供给阀17之外，还设置有用于将尿素水供给至氧化催化剂12的第二尿素水供给阀21。当从第二尿素水供给阀21供给尿素水时，从NO X SB传感器40检测出从氧化催化剂12流出的氨的NO X 。从NO X 传感器40的检测值检测尿素水的浓度。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2009057843A Egr control system of internal combustion engine 有权
标题翻译：内燃机EGR控制系统
公开(公告)号：JP2009057843A
公开(公告)日：2009-03-19
申请号：JP2007223694
申请日：2007-08-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO KAZUHIRO , ASANUMA TAKAMITSU , TOSHIOKA TOSHISUKE , HAYASHI ATSUSHI
IPC分类号： F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To further suitably control the CO
2 concentration of intake air of an internal combustion engine, when introducing EGR gas into an intake system of the internal combustion engine.
SOLUTION: This EGR control system has a reducing agent adding valve 8 arranged on the upstream side along a flow of exhaust gas rather than a connecting part with an EGR passage in an exhaust system of the internal combustion engine and adding a reducing agent in the exhaust gas, and a CO
2 sensor 14 arranged on the upstream side along the flow of the exhaust gas rather than a part supplied with the reducing agent added from the reducing agent adding valve in the exhaust system of the internal combustion engine and detecting the CO
2 concentration of the exhaust gas, and controls a flow rate of the EGR gas introduced into the intake system of the internal combustion engine based on an output value of the CO
2 sensor 14.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了进一步适当地控制内燃机的进气的CO 2 浓度，当将EGR气体引入到内燃机的进气系统中时。解决方案：该EGR控制系统具有沿着排气流而排列在上游侧的还原剂添加阀8，而不是与内燃机排气系统中的EGR通道的连接部分，并且添加还原剂在排气中的CO 2 传感器14，沿着排气的流动配置在上游侧，而不是由排气系统中的还原剂添加阀添加的还原剂供给的部分并且检测排气的CO 2 浓度，并且基于CO的输出值控制引入到内燃机的进气系统中的EGR气体的流量 2 传感器14.版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009013931A Exhaust gas purification device 有权
标题翻译：排气排放控制装置
公开(公告)号：JP2009013931A
公开(公告)日：2009-01-22
申请号：JP2007178712
申请日：2007-07-06
申请人： Hino Motors Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日野自動車株式会社
发明人： YABE MASAHIKO , YOKOTA HARUYUKI , SHIMIZU TAKAHARU , NINOMIYA HIROYUKI , SATO SHINYA , HAYASHI TAKAHIKO , TOSHIOKA TOSHISUKE , WATABE SATORU , ODA TOMIHISA , TAUCHI YUTAKA
IPC分类号： F01N3/08 , B01D53/94 , F01N3/02 , F01N3/24 , F01N3/28
CPC分类号： F01N3/2066 , B01D53/9418 , B01D53/9431 , B01D53/944 , B01D2251/2067 , B01D2251/208 , B01D2258/012 , F01N3/0814 , F01N3/103 , F01N9/00 , F01N13/009 , F01N2570/14 , F01N2610/02 , F01N2610/03 , F01N2900/1404 , F01N2900/1602 , Y02A50/2344 , Y02T10/24 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To obtain excellent NOx reducing effect from an exhaust temperature lower than a conventional one without causing a trouble in engine starting or the like after long time engine stop. SOLUTION: An exhaust emission control device which includes at some midpoint of an exhaust pipe 4 a selective reduction type catalyst 5 and which reduces and controls NOx by adding urea water 6 as a reducing agent in the exhaust pipe 4 on the upstream side from the selective reduction type catalyst 5, is provided with an oxidation catalyst 9, to the exhaust pipe 4 on the upstream side from the adding position of the urea water 6, having a property in which NOx in the exhaust 3 is physically adsorbed at a temperature lower than an active lower limit temperature of the selective reduction type catalyst 5 and the absorbed NOx is discharged at a temperature higher than its own active lower limit temperature, and a fuel addition means (a fuel injection device 14) for adding fuel in the exhaust 3 on the upstream side from the oxidation catalyst 9 so as to allow the suspension of the start of fuel addition until an exhaust temperature of the selective reduction type catalyst 5 inlet side rises to the set temperature equivalent to the active lower limit temperature of the oxidation catalyst 9. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了从低于常规排气温度的废气温度获得优异的NOx还原效果，在长时间的发动机停止后不会引起发动机起动等问题。解决方案：一种废气排放控制装置，其在排气管4的一些中点处包括选择还原型催化剂5，并且通过在上游侧的排气管4中添加作为还原剂的尿素水6来还原和控制NOx 从选择还原型催化剂5，在尿素水6的添加位置的上游侧的排气管4上设有氧化催化剂9，其特征在于排气3中的NOx被物理吸附在低于选择还原型催化剂5的活性下限温度的温度和吸收的NOx在比其自身的有效下限温度高的温度下排出;以及燃料添加装置（燃料喷射装置14），用于在在氧化催化剂9的上游侧具有排气3，以允许燃料添加开始的停止直到选择还原型催化剂5的入口侧r的排气温度等于氧化催化剂9的活性下限温度的设定温度。（C）2009年，JPO＆INPIT

7. 发明专利

JP2008255936A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2008255936A
公开(公告)日：2008-10-23
申请号：JP2007100648
申请日：2007-04-06
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOSHIOKA TOSHISUKE , ODA TOMIHISA , ITO KAZUHIRO
IPC分类号： F01N3/08 , B01D53/94 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To prevent a large amount of ammonia generating compound from being discharged from a catalyst even when the easiness of storage of ammonia generating compound by the catalyst is changed. SOLUTION: The catalyst 27 suitable for reducing NOx contained in an exhaust gas using ammonia under excessive oxygen is disposed in the exhaust passage of an engine. A urea solution is supplied from an addition control valve 32 to the catalyst 27 to store a part of the urea supplied to the catalyst 27 in the catalyst 27 and reduce NOx contained in the exhaust gas by the ammonia generated from the urea stored in the catalyst 27. It is determined whether or not the storage capacity of the catalyst 27 is larger than an allowable upper limit predetermined beforehand. When the storage capacity of the catalyst 27 is determined to be larger than the allowable upper limit, the supply of the urea solution is prohibited. The storage capacity of the catalyst 27 is corrected based on the degree of easiness of storage which represents the easiness of storage of the urea solution by the catalyst 27. Then, it is determined whether or not the corrected storage capacity is larger than the allowable upper limit. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了防止由于催化剂易于储存氨产生化合物而导致催化剂排出的大量氨产生化合物。解决方案：在发动机的排气通道中设置适于在过量氧气下使用氨还原包含在排气中的NOx的催化剂27。将尿素溶液从添加控制阀32供给到催化剂27，以将供给到催化剂27的一部分尿素存储在催化剂27中，并且通过由存储在催化剂中的尿素产生的氨来还原废气中的NOx 确定催化剂27的储存容量是否比预先规定的允许上限大。当催化剂27的储存容量被确定为大于允许上限时，禁止供应尿素溶液。基于表示通过催化剂27容易地储存尿素溶液的储存容易程度来校正催化剂27的储存容量。然后，确定校正后的储存容量是否大于容许上限限制。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008255899A Method of estimating amount of n2o generated in ammonia oxidation catalyst and exhaust emission control system of internal combustion engine 有权
标题翻译：氧化氮氧化物催化剂生成量和内燃机废气排放控制系统的估算方法
公开(公告)号：JP2008255899A
公开(公告)日：2008-10-23
申请号：JP2007099688
申请日：2007-04-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOSHIOKA TOSHISUKE , ODA TOMIHISA , ITO KAZUHIRO
IPC分类号： F01N3/08 , B01D53/86 , B01D53/94 , F01N3/00 , F01N3/24 , F01N3/36
CPC分类号： F01N3/206 , B01D53/30 , B01D53/9409 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2258/012 , F01N3/2066 , F01N11/00 , F01N13/009 , F01N2560/026 , F01N2570/145 , F01N2610/02 , F01N2900/1616 , Y02A50/2344 , Y02C20/10 , Y02T10/24 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To estimate the amount of N 2 O generated in an ammonia oxidation catalyst when the ammonia oxidation catalyst is installed in the exhaust passage of an internal combustion engine. SOLUTION: When the ammonia oxidation catalyst 14 having the function of oxidizing ammonia is installed in the exhaust passage 6 of the internal combustion engine 1, the amount of N 2 O generated in the ammonia oxidation catalyst 14 is estimated based on the difference between the value detected by an upstream side NOx sensor 17 installed in the exhaust passage 6 on the downstream side of the ammonia oxidation catalyst 14 and the value detected by a downstream side NOx sensor 18 installed in the exhaust passage on the downstream side of the ammonia oxidation catalyst 14. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：当氨氧化催化剂安装在内燃机的排气通道中时，估计在氨氧化催化剂中产生的N 2 SB 2 O的量。解决方案：当具有氧化氨功能的氨氧化催化剂14安装在内燃机1的排气通道6中时，在氨氧化催化剂中产生的N 2 SB 2 O的量 14基于安装在氨氧化催化剂14的下游侧的排气通路6中的上游侧NOx传感器17检测出的值与由安装在排气通路中的下游侧NOx传感器18检测出的值之差在氨氧化催化剂14的下游侧。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008231966A Exhaust emission control device for compression-ignition internal combustion engine 有权
标题翻译：用于压缩点火内燃机的排气控制装置
公开(公告)号：JP2008231966A
公开(公告)日：2008-10-02
申请号：JP2007070020
申请日：2007-03-19
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOSHIOKA TOSHISUKE , ODA TOMIHISA , ITO TAKEKAZU , ITO KAZUHIRO , TAUCHI YUTAKA
IPC分类号： F01N3/08 , B01D53/94 , F01N3/24 , F01N3/28 , F01N3/36
CPC分类号： F01N3/0814 , B01D53/9418 , B01D53/9477 , B01D53/9495 , B01D53/96 , B01D2251/2067 , B01D2251/21 , B01D2255/1021 , B01D2255/20738 , B01D2255/50 , B01D2258/012 , F01N3/106 , F01N3/2033 , F01N3/2066 , F01N9/00 , F01N13/009 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2610/03 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a sufficient NOx conversion rate by warming up a NOx selective reduction catalyst in an early stage and also neutralizing the HC poisoning of the NOx selective reduction catalyst.
SOLUTION: A NOx selective reduction catalyst 15 is disposed in an engine exhaust passage, and an oxidation catalyst 12 is disposed in the engine exhaust passage upstream of the NOx selective reduction catalyst 15. HC is supplied to the oxidation catalyst 12 from an HC supply valve 28 when an engine is started to raise the temperature of the NOx selective reduction catalyst 15 by the oxidative reaction heat of the HC. At this time, the temperature of the NOx selective reduction catalyst 15 is raised to a range of HC desorption temperature where the HC is desorbed from the NOx selective reduction catalyst 15.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过在早期阶段预热NOx选择还原催化剂并且还中和NOx选择还原催化剂的HC中毒来提供足够的NOx转化率。解决方案：在发动机排气通道中设置NOx选择还原催化剂15，氧化催化剂12设置在NOx选择还原催化剂15上游的发动机排气通道中。从氧化催化剂12向 HC发动机启动时，通过HC的氧化反应热使NOx选择还原催化剂15的温度上升。此时，NOx选择还原催化剂15的温度升高到HC从NOx选择还原催化剂15解吸的HC解吸温度的范围。（C）2009，JPO＆INPIT

10. 发明专利

JP2008115838A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2008115838A
公开(公告)日：2008-05-22
申请号：JP2006302541
申请日：2006-11-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOSHIOKA TOSHISUKE , ASANUMA TAKAMITSU , OHASHI NOBUMOTO , YOSHIDA KOHEI
IPC分类号： F01N3/36 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/24 , F01N3/28
摘要： 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
摘要翻译：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

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