-
公开(公告)号：US08887492B2
公开(公告)日：2014-11-18
申请号：US12920975
申请日：2009-02-26
CPC分类号： F01N3/0878 , F01N3/0807 , F01N3/0814 , F01N3/2033 , F01N13/02 , F01N2240/18 , F01N2240/36 , F01N2410/03 , F01N2550/03 , F01N2560/06 , F01N2560/14 , F01N2570/22 , F02D41/0245 , F02D41/025 , F02D41/0275 , Y02T10/26
摘要： In an exhaust gas purification apparatus of an internal combustion engine, there is provided a technique capable of suppressing a reduction in exhaust gas purification performance. The apparatus includes: an exhaust gas purification catalyst (6) that is arranged in an exhaust passage of the internal combustion engine for purifying an exhaust gas; an adsorption device (5) that is arranged at an upstream side of the exhaust gas purification catalyst, rises in temperature up to an upper limit temperature due to heat generated by adsorption thereto of an incoming first component, and falls in temperature after its temperature has reached said upper limit temperature; and a heat generating component supply unit (10) that supplies a second component which generates reaction heat in the exhaust gas purification catalyst, before the temperature of the adsorption device begins to fall.
摘要翻译： 在内燃机的废气净化装置中，提供了能够抑制排气净化性能降低的技术。 该装置包括：排气净化催化剂（6），其布置在用于净化废气的内燃机的排气通道中; 布置在排气净化催化剂的上游侧的吸附装置（5）由于进入的第一成分的吸附而产生的热量升温至上限温度，其温度下降后的温度 达到上限温度; 以及在吸附装置的温度开始下降之前，在排气净化催化剂中供给产生反应热的第二成分的发热部件供给部（10）。
-
公开(公告)号：US08156787B2
公开(公告)日：2012-04-17
申请号：US12377039
申请日：2008-06-30
CPC分类号： G01N33/287 , F01N2560/027 , G01N33/0042 , Y02A50/248
摘要： A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOX, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOX.
摘要翻译： 排气中的硫成分的金属化合物（50）配置在废气的流路中，金属化合物（50）的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物（50），并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面，假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SOX量的假定累积值。 根据SOX量的实际累积值和SOX量的假定累积值判断是否使用高硫浓度的燃料或油。
-
公开(公告)号：US20090241638A1
公开(公告)日：2009-10-01
申请号：US12377039
申请日：2008-06-30
IPC分类号： G01N1/22
CPC分类号： G01N33/287 , F01N2560/027 , G01N33/0042 , Y02A50/248
摘要： A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOx, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOx.
摘要翻译： 排气中的硫成分的金属化合物（50）配置在废气的流路中，金属化合物（50）的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物（50），并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面，假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SO x的量的假定累积值。 根据SOX量的实际累积值和SOx量的假定累计值判断是否使用了高硫浓度的燃料或油。
-
公开(公告)号：US20090107121A1
公开(公告)日：2009-04-30
申请号：US12289239
申请日：2008-10-23
IPC分类号： F01N9/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/2066 , F01N11/00 , F01N13/009 , F01N2240/00 , F01N2570/04 , F01N2570/14 , F01N2610/02 , Y02A50/2344 , Y02T10/24 , Y02T10/47
摘要： A SOx trap catalyst, an oxidation catalyst, a particulate filter, an aqueous urea supply valve, and a NOx selective reduction catalyst are arranged in order from upstream to downstream in an engine exhaust passage. It is determined whether a discharge concentration of hydrogen sulfide H2S will become equal to or greater than a preset maximum concentration when SOx is released from the SOx trap catalyst. If it is estimated that the discharge concentration of the hydrogen sulfide H2S will become equal to or greater than the maximum concentration when SOx is released, an adsorbed ammonia amount adsorbed on the NOx selective reduction catalyst is reduced before SOx is released so that the discharge concentration of the hydrogen sulfide H2S is less than the maximum concentration when SOx is released.
摘要翻译： 在发动机排气通道中从上游到下游依次布置有SO x捕集催化剂，氧化催化剂，颗粒过滤器，含水尿素供给阀和NOx选择还原催化剂。 当SO x从SO X捕集催化剂释放时，确定硫化氢H 2 S的排出浓度是否将变为等于或大于预设最大浓度。 如果估计硫化氢H 2 S的排放浓度将变为等于或大于SO x释放时的最大浓度，则在释放SOx之前吸附在NOx选择还原催化剂上的吸附氨量降低，使得排放浓度 的硫化氢H2S小于SOx释放时的最大浓度。
-
公开(公告)号：US20110056190A1
公开(公告)日：2011-03-10
申请号：US12920975
申请日：2009-02-26
CPC分类号： F01N3/0878 , F01N3/0807 , F01N3/0814 , F01N3/2033 , F01N13/02 , F01N2240/18 , F01N2240/36 , F01N2410/03 , F01N2550/03 , F01N2560/06 , F01N2560/14 , F01N2570/22 , F02D41/0245 , F02D41/025 , F02D41/0275 , Y02T10/26
摘要： In an exhaust gas purification apparatus of an internal combustion engine, there is provided a technique capable of suppressing a reduction in exhaust gas purification performance. The apparatus includes: an exhaust gas purification catalyst (6) that is arranged in an exhaust passage of the internal combustion engine for purifying an exhaust gas; an adsorption device (5) that is arranged at an upstream side of the exhaust gas purification catalyst, rises in temperature up to an upper limit temperature due to heat generated by adsorption thereto of an incoming first component, and falls in temperature after its temperature has reached said upper limit temperature; and a heat generating component supply unit (10) that supplies a second component which generates reaction heat in the exhaust gas purification catalyst, before the temperature of the adsorption device begins to fall.
摘要翻译： 在内燃机的废气净化装置中，提供了能够抑制排气净化性能降低的技术。 该装置包括：排气净化催化剂（6），其布置在用于净化废气的内燃机的排气通道中; 布置在排气净化催化剂的上游侧的吸附装置（5）由于进入的第一成分的吸附而产生的热量升温至上限温度，其温度下降后的温度 达到上限温度; 以及在吸附装置的温度开始下降之前，在排气净化催化剂中供给产生反应热的第二成分的发热部件供给部（10）。
-
公开(公告)号：US08307639B2
公开(公告)日：2012-11-13
申请号：US12308768
申请日：2008-01-29
申请人： Hiromasa Nishioka , Shinya Hirota , Kotaro Hayashi , Takamitsu Asanuma , Kohei Yoshida , Hiroshi Otsuki
发明人： Hiromasa Nishioka , Shinya Hirota , Kotaro Hayashi , Takamitsu Asanuma , Kohei Yoshida , Hiroshi Otsuki
IPC分类号： F01N3/10
CPC分类号： F02D41/0285 , B01D53/9477 , B01D2251/208 , B01D2255/1021 , B01D2257/302 , B01D2257/404 , F01N3/0807 , F01N3/0842 , F01N3/085 , F01N13/009 , F01N2550/03 , F01N2560/023 , F01N2560/027 , F01N2570/04 , F01N2610/03 , F02D2200/0818
摘要： An SOx trap catalyst able to trap SOx contained in the exhaust gas is arranged in an engine exhaust passage upstream of an NOx storing catalyst in an internal combustion engine. When the SOx trap rate of the SOx trap catalyst falls, fuel is added in the exhaust gas flowing into the SOx trap catalyst to form in the SOx trap catalyst a region in which an air-fuel ratio becomes locally rich. SOx released from the SOx trap catalyst in this region can be trapped in the SOx trap catalyst at the downstream side once again without flowing out from the downstream end of the SOx trap catalyst.
摘要翻译： 在内燃机中的NOx吸留催化剂的上游的发动机排气通路中配置能够捕集废气中含有的SO x的SO X捕集催化剂。 当SOx捕集催化剂的SOx捕获率下降时，在排入SO x捕集催化剂的废气中添加燃料，在SO x捕集催化剂中形成空燃比局部浓缩的区域。 从该区域的SOx捕集催化剂释放的SOx可以再次被捕获在下游侧的SO x捕集催化剂中，而不会从SOx捕集催化剂的下游端流出。
-
公开(公告)号：US08156731B2
公开(公告)日：2012-04-17
申请号：US12227876
申请日：2008-04-03
IPC分类号： F01N3/00
CPC分类号： F01N3/0885 , B01D53/9422 , B01D53/9431 , B01D53/9477 , B01D2255/202 , B01D2255/204 , B01D2255/2061 , B01D2255/2063 , B01D2255/91 , B01D2257/302 , F01N3/0842 , F01N3/085 , F01N13/0093 , F01N2560/026 , F01N2570/04 , F01N2610/03
摘要： An internal combustion engine in which a front end catalyst (12) and rear end catalyst (14) comprising NOx storing catalysts are arranged in an engine exhaust passage. When these catalysts (12, 14) should recover from SOx poisoning, SOx poisoning recovery proceeding is performed in which the temperatures of the corresponding catalysts (12, 14) are raised to the SOx release temperature and the air-fuel ratio of the exhaust gas flowing into the corresponding catalysts (12, 14) is made rich. In this case, the frequency of performing the SOx poisoning recovery proceeding of the rear end catalyst (14) is made higher than the frequency of performing the SOx poisoning recovery proceeding of the front end catalyst (12).
摘要翻译： 在发动机排气通路中配置有前端催化剂（12）和包含NOx储存催化剂的后端催化剂（14）的内燃机。 当这些催化剂（12,14）从SOx中毒中恢复时，进行SOx中毒恢复进程，其中相应的催化剂（12,14）的温度升高到SOx释放温度，排气的空燃比 流入相应的催化剂（12,14）中。 在这种情况下，使后端催化剂（14）的SOx中毒恢复进行的频率比进行前端催化剂（12）的SOx中毒恢复进行的频率高。
-
公开(公告)号：US20100089039A1
公开(公告)日：2010-04-15
申请号：US12522183
申请日：2008-07-02
申请人： Takamitsu Asanuma , Shinya Hirota , Kohei Yoshida , Hiromasa Nishioka , Hiroshi Otsuki , Tomihisa Oda , Shunsuke Toshioka
发明人： Takamitsu Asanuma , Shinya Hirota , Kohei Yoshida , Hiromasa Nishioka , Hiroshi Otsuki , Tomihisa Oda , Shunsuke Toshioka
CPC分类号： F01N3/035 , B01D53/9409 , B01D53/9495 , B01D2251/2067 , B01D2257/404 , F01N3/0814 , F01N3/0871 , F01N3/208 , F01N13/009 , F01N2560/06 , F01N2610/146 , F01N2900/08 , Y02T10/24
摘要： In an internal combustion engine, an NOx selective reduction catalyst (14) is arranged in an engine exhaust passage, and an NOx storage catalyst (12) is arranged in the engine exhaust passage upstream of the NOx selective reduction catalyst (14). When the amount of NOx stored in the NOx storage catalyst (12) exceeds a predetermined allowable value, the NOx storage catalyst (12) is raised in temperature to make the NOx storage catalyst (12) release the NOx. The amount of urea feed is decreased by exactly the amount of reduction of the calculated stored NOx amount with respect to the amount of urea feed determined from the engine operating state, and the amount of urea feed is increased by exactly the amount of reduction of the calculated released NOx amount with respect to the amount of urea feed determined from the engine operating state.
摘要翻译： 在内燃机中，在发动机排气通路中配置NOx选择还原催化剂（14），在NOx选择还原催化剂（14）的上游配置有NOx吸留催化剂（12）。 当存储在NOx吸留催化剂（12）中的NOx的量超过预定的容许值时，NOx吸留催化剂（12）升温，使NOx吸留催化剂（12）释放NOx。 尿素进料的量相对于从发动机运转状态确定的尿素进料量的精确量减少计算的存储的NOx量的量减少，并且尿素进料量的精确量减少 相对于从发动机工作状态确定的尿素进料量计算的释放的NOx量。
-
公开(公告)号：US08341941B2
公开(公告)日：2013-01-01
申请号：US12522183
申请日：2008-07-02
申请人： Takamitsu Asanuma , Shinya Hirota , Kohei Yoshida , Hiromasa Nishioka , Hiroshi Otsuki , Tomihisa Oda , Shunsuke Toshioka
发明人： Takamitsu Asanuma , Shinya Hirota , Kohei Yoshida , Hiromasa Nishioka , Hiroshi Otsuki , Tomihisa Oda , Shunsuke Toshioka
IPC分类号： F01N3/20
CPC分类号： F01N3/035 , B01D53/9409 , B01D53/9495 , B01D2251/2067 , B01D2257/404 , F01N3/0814 , F01N3/0871 , F01N3/208 , F01N13/009 , F01N2560/06 , F01N2610/146 , F01N2900/08 , Y02T10/24
摘要： In an internal combustion engine, an NOx selective reduction catalyst (14) is arranged in an engine exhaust passage, and an NOx storage catalyst (12) is arranged in the engine exhaust passage upstream of the NOx selective reduction catalyst (14). When the amount of NOx stored in the NOx storage catalyst (12) exceeds a predetermined allowable value, the NOx storage catalyst (12) is raised in temperature to make the NOx storage catalyst (12) release the NOx. The amount of urea feed is decreased by exactly the amount of reduction of the calculated stored NOx amount with respect to the amount of urea feed determined from the engine operating state, and the amount of urea feed is increased by exactly the amount of reduction of the calculated released NOx amount with respect to the amount of urea feed determined from the engine operating state.
摘要翻译： 在内燃机中，在发动机排气通路中配置NOx选择还原催化剂（14），在NOx选择还原催化剂（14）的上游配置有NOx吸留催化剂（12）。 当存储在NOx吸留催化剂（12）中的NOx的量超过预定的容许值时，NOx吸留催化剂（12）升温，使NOx吸留催化剂（12）释放NOx。 尿素进料的量相对于从发动机运转状态确定的尿素进料量的精确量减少计算的存储的NOx量的量减少，并且尿素进料量的精确量减少 相对于从发动机工作状态确定的尿素进料量计算的释放的NOx量。
-
公开(公告)号：US08297042B2
公开(公告)日：2012-10-30
申请号：US12674627
申请日：2009-01-27
CPC分类号： F01N3/0814 , B01D53/9422 , B01D53/949 , B01D2255/202 , B01D2255/204 , B01D2257/302 , B01D2257/404 , B01D2258/012 , F01N3/085 , F01N3/101 , F01N13/009 , F01N2410/12 , F01N2450/30 , F01N2560/027 , F02D41/0285 , Y02T10/22
摘要： In an exhaust purification system of an internal combustion engine comprising an exhaust purification device which receives a bad influence from SOX in the exhaust gas and a S trap device arranged upstream of the exhaust purification device, which can store SOX in the exhaust gas, an amount of SOX passing through the S trap device is integrated as an integrated value, each allowance value of the integrated value for each elapsed period from the start time of the use of the S trap device is set, and when the current integrated value exceeds the corresponding allowance value and between a first set period ago and the current time, fuel has been supplied into the fuel tank and engine oil has not been exchanged, it is determined that fuel with a high concentration of sulfur has been supplied into the fuel tank.
摘要翻译： 在具有排气净化装置的排气净化装置的内燃机的排气净化装置中，所述排气净化装置受到排气中的SOX的不良影响，以及配置在排气净化装置的上游侧的能够将SOX存储在废气中的S捕集装置， 通过S捕集装置的SOX被积分为积分值，设定从使用S捕获装置的开始时刻起的每个经过时间段的积分值的每个允许值，并且当当前积分值超过相应的 余量值，并且在第一设定时段和当前时间之间，燃料已经被供应到燃料箱中，并且发动机油未被更换，则确定具有高浓度硫的燃料已经被供应到燃料箱中。
-
-
-
-
-
-
-
-
-
搜索结果
72 条记录 (耗时 0.03 秒)
