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公开(公告)号：EP2463648A3
公开(公告)日：2013-04-24
申请号：EP11193248.9
申请日：2011-12-13
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N27/4077 , G01N33/0037 , G01N33/0054 , Y02A50/245 , Y02A50/246
摘要： A multigas sensor (200A) including a gas sensor element (100A) extending in an axial direction (O) and having an NO x sensor portion (30) and an ammonia sensor portion (42); a metallic shell (138); and a closed-bottomed tubular protector (141) having gas introduction holes (143a) formed in its side wall (143d), and a gas discharge hole (143b) formed in its front end wall (143t). At least a subportion of the ammonia sensor portion (42) is disposed within a positional range along the axial direction (O) between the gas introduction holes (143a) and the gas discharge hole (143b). The shortest distance (d1) between the gas introduction hole (143a) and the ammonia sensor portion (42) is shorter than the shortest distance (d2) between the gas introduction hole (143a) and the gas diffusion hole (8a).
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公开(公告)号：EP1074833A1
公开(公告)日：2001-02-07
申请号：EP00109522.3
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417 , F01N11/00
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.
摘要翻译： 排气浓度检测装置技术领域本发明涉及检测排气浓度的装置，其包括：设置在内燃机的排气管中的NOx吸留催化剂，安装在排气管中的NOx吸留催化剂下游的NOx传感器，用于检测NOx浓度 用于暂时提供用于净化在所述NOx吸留催化剂中吸留的NOx的浓空燃比的驱动条件设定装置以及用于基于检测输出的变化来检测所述NOx吸留催化剂的劣化状态的装置 在设定浓空燃比之前和之后设定所述NOx传感器。
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公开(公告)号：EP0987547A2
公开(公告)日：2000-03-22
申请号：EP99118554.7
申请日：1999-09-20
IPC分类号： G01N27/417
CPC分类号： G01N27/417 , G01N27/419
摘要： A gas sensor comprises a first pump cell 6 including first internal and external electrodes 10 and 11 so formed as to face from inside and outside a first flow passage 2, respectively, for pumping oxygen out from, and into, the first flow passage, and a second pump cell 8 including second internal and external electrodes 14 and 15 so formed as to face from inside and outside a second flow passage 4 communicating with the first flow passage through a diffusion resistance, wherein a measurement gas component undergoes reaction inside the second flow passage 4 and a current corresponding to the concentration of the measurement gas component flows between the electrodes 14 and 15 through the oxygen ion conductor. At least a part of the first internal electrode 10 contains a platinum group element and Cu.
摘要翻译： 气体传感器包括第一泵单元6，第一泵单元6包括第一内部电极10和第一外部电极11，第一内部电极10和第一外部电极11被形成为分别从第一流动通道2的内部和外部面对，用于将氧气从第一流动通道泵出并进入第一流动通道; 第二泵单元8，其包括第二内部电极14和外部电极15，第二内部电极14和外部电极15被形成为从第二流动通道4的内部和外部面对，第二流动通道4通过扩散阻力与第一流动通道连通，其中测量气体成分在第二流动内部 通道4中，并且与测量气体成分的浓度相对应的电流通过氧离子导体在电极14和15之间流动。 第一内部电极10的至少一部分含有铂族元素和Cu。
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公开(公告)号：EP2463648A2
公开(公告)日：2012-06-13
申请号：EP11193248.9
申请日：2011-12-13
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N27/4077 , G01N33/0037 , G01N33/0054 , Y02A50/245 , Y02A50/246
摘要： A multigas sensor (200A) including a gas sensor element (100A) extending in an axial direction (O) and having an NO x sensor portion (30) and an ammonia sensor portion (42); a metallic shell (138); and a closed-bottomed tubular protector (141) having gas introduction holes (143a) formed in its side wall (143d), and a gas discharge hole (143b) formed in its front end wall (143t). At least a subportion of the ammonia sensor portion (42) is disposed within a positional range along the axial direction (O) between the gas introduction holes (143a) and the gas discharge hole (143b). The shortest distance (d1) between the gas introduction hole (143a) and the ammonia sensor portion (42) is shorter than the shortest distance (d2) between the gas introduction hole (143a) and the gas diffusion hole (8a).
摘要翻译： 包括沿轴向（O）延伸并且具有NO x传感器部分（30）和氨传感器部分（42）的气体传感器元件（100A）的多气体传感器（200A） 金属壳（138）; 以及在其侧壁（143d）中形成有气体导入孔（143a）的封闭式管状保护器（141）和形成在其前端壁（143t）中的气体排出孔（143b）。 氨传感器部（42）的至少一部分配置在气体导入孔（143a）和气体排出孔（143b）之间的轴向（O）的位置范围内。 气体导入孔（143a）和氨传感器部（42）之间的最短距离（d1）比气体导入孔（143a）和气体扩散孔（8a）的最短距离（d2）短。
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公开(公告)号：EP1074834B1
公开(公告)日：2012-05-23
申请号：EP00109523.1
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.
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公开(公告)号：EP0845670B1
公开(公告)日：2000-09-06
申请号：EP97121139.6
申请日：1997-12-02
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatuo
IPC分类号： G01N27/407 , G01N27/419 , G01N27/406
CPC分类号： G01N27/4074 , Y10T436/179228
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7.发明公开
公开(公告)号：EP0930501A2
公开(公告)日：1999-07-21
申请号：EP99101007.5
申请日：1999-01-18
发明人： Yamada, Tessho , Ishida, Noboru , Matsuura, Toshitaka , Noda, Yoshiro , Hayakawa, Nobuhiro , Nadanami, Norihiko , Sugaya, Satoshi , Otsuka, Takaki , Ando, Masashi , Oshima, Takafumi
IPC分类号： G01N27/417
CPC分类号： G01N27/417
摘要： The invention relates to an apparatus and a method using a two-serial space sensor (having first and second internal spaces (2, 3)) for accurately measuring NOx concentration in gas, e.g., exhausted from an internal combustion engine. Both NOx (nitrogen oxide) and oxygen are forced to be partially dissociated in the first space (2) to an oxygen concentration level of 2 x 10 -7 to 2 x 10 -10 atm by pumping out oxygen from the first space (2). The NOx concentration is determined based on the second current measured in the second space (4) and based on the NO dissociation percentage in the first space (2) which is 0.5-50%, or preferably 2-20%. The NOx measurement accuracy is further improved when the above oxygen concentration level is maintained from 2 x 10 -8 to 2 x 10 -9 and the temperature drift of the sensor is maintained within ± 5°C under a sensor temperature range of 700-900 °C.
摘要翻译： 本发明涉及一种使用双串行空间传感器（具有第一和第二内部空间（2,3））的装置和方法，用于精确地测量例如从内燃机排出的气体中的NOx浓度。 在第一空间（2）中，NOx（氮氧化物）和氧被强制部分解离，氧浓度水平为2×10 -7至2×10 -10 atm，通过从第一空间 空间（2）。 基于在第二空间（4）中测量的第二电流，并且基于第一空间（2）中的NO解离百分比为0.5-50％，或优选2-20％来确定NOx浓度。 当上述氧浓度水平维持在2×10 -8至2×10 -9时，NOx传感器的测量精度进一步提高，传感器的温度漂移保持在+/- 5℃以下 温度范围700-900℃
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公开(公告)号：EP2463648B1
公开(公告)日：2017-11-01
申请号：EP11193248.9
申请日：2011-12-13
IPC分类号： G01N27/407 , G01N33/00
CPC分类号： G01N27/4074 , G01N27/4077 , G01N33/0037 , G01N33/0054 , Y02A50/245 , Y02A50/246
摘要： A multigas sensor (200A) including a gas sensor element (100A) extending in an axial direction (O) and having an NO x sensor portion (30) and an ammonia sensor portion (42); a metallic shell (138); and a closed-bottomed tubular protector (141) having gas introduction holes (143a) formed in its side wall (143d), and a gas discharge hole (143b) formed in its front end wall (143t). At least a subportion of the ammonia sensor portion (42) is disposed within a positional range along the axial direction (O) between the gas introduction holes (143a) and the gas discharge hole (143b). The shortest distance (d1) between the gas introduction hole (143a) and the ammonia sensor portion (42) is shorter than the shortest distance (d2) between the gas introduction hole (143a) and the gas diffusion hole (8a).
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公开(公告)号：EP1482306B1
公开(公告)日：2014-09-24
申请号：EP04253253.1
申请日：2004-06-01
发明人： Fujita, Hiroki , Fujita, Koichi , Sugaya, Satoshi , Kato, Kenji , Inoue, Ryuji , Ishida, Noboru
IPC分类号： G01N27/12
CPC分类号： G01N27/121
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公开(公告)号：EP0930501A3
公开(公告)日：2002-04-24
申请号：EP99101007.5
申请日：1999-01-18
发明人： Yamada, Tessho , Ishida, Noboru , Matsuura, Toshitaka , Noda, Yoshiro , Hayakawa, Nobuhiro , Nadanami, Norihiko , Sugaya, Satoshi , Otsuka, Takaki , Ando, Masashi , Oshima, Takafumi
IPC分类号： G01N27/417 , G01N27/419
CPC分类号： G01N27/417
摘要： The invention relates to an apparatus and a method using a two-serial space sensor (having first and second internal spaces (2, 3)) for accurately measuring NOx concentration in gas, e.g., exhausted from an internal combustion engine. Both NOx (nitrogen oxide) and oxygen are forced to be partially dissociated in the first space (2) to an oxygen concentration level of 2 x 10 -7 to 2 x 10 -10 atm by pumping out oxygen from the first space (2). The NOx concentration is determined based on the second current measured in the second space (4) and based on the NO dissociation percentage in the first space (2) which is 0.5-50%, or preferably 2-20%. The NOx measurement accuracy is further improved when the above oxygen concentration level is maintained from 2 x 10 -8 to 2 x 10 -9 and the temperature drift of the sensor is maintained within ± 5°C under a sensor temperature range of 700-900 °C.
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