专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP1361430A3 Gas concentration sensor 审中-公开
标题翻译：气体浓度传感器
公开(公告)号：EP1361430A3
公开(公告)日：2005-05-04
申请号：EP03251861.5
申请日：2003-03-25
申请人： NGK SPARK PLUG CO., LTD
发明人： Sakamoto, Masashi, c/o NGK Spark Plug Co., Ltd. , Sato, Yoshikuni, c/o NGK Spark Plug Co., Ltd. , Ishikawa, Hideki, c/o NGK Spark Plug Co., Ltd. , Banno, Keigo , Ishida, Noboru
IPC分类号： G01N29/02 , G01N29/22
CPC分类号： G01N29/222 , G01N29/024 , G01N2291/011 , G01N2291/015 , G01N2291/0212 , G01N2291/0217 , G01N2291/02809 , G01N2291/045 , G01N2291/101
摘要： A gas concentration sensor includes a measurement chamber for measuring a concentration of a specific gas component in a gas under measurement; an inflow path for allowing inflow of the gas under measurement thereinto and an outflow path for allowing outflow of the gas under measurement therefrom; a reflection wall for reflecting an acoustic wave; and an acoustic wave transmitting-receiving element having a transmitting-receiving surface adapted to transmit an acoustic wave toward the reflection wall and receive an acoustic wave reflected from the reflection wall. The concentration of the specific gas in the gas under measurement is detected on the basis of a propagation time between transmission of the acoustic wave and reception of the reflected acoustic wave. When a predetermined member having the sensor attached thereto is placed in a horizontal plane, the transmitting-receiving surface faces downward. A recess is formed in a peripheral portion of the reflection wall. The recess is receded toward a back surface of the reflection wall, i.e. in a direction away from the transmitting-receiving surface.

2. 发明公开

EP1103807A3 Hydrogen gas sensor 有权
标题翻译：氢气传感器
公开(公告)号：EP1103807A3
公开(公告)日：2004-07-21
申请号：EP00310212.6
申请日：2000-11-17
申请人： NGK SPARK PLUG CO., LTD
发明人： Nadanami, Norihiko , Ishida, Noboru , Oshima, Takafumi , Inoue, Ryuji , Kondo, Tomonori
IPC分类号： G01N27/407 , G01N27/49
CPC分类号： G01N27/4074 , G01N33/005
摘要： In a hydrogen gas sensor, the flow sectional area of a diffusion-rate limiting portion 6 is rendered small; the electrode surfaces of first and second electrodes 3 and 4 are rendered large; and/or a solution containing a polymer electrolyte identical with that of a proton-conductive layer 2 is applied onto the surfaces of the first and second electrodes 3 and 4 to thereby form a layer containing the polymer electrolyte. Thus, the rate of conduction of protons from the first electrode 3 to the second electrode 4 becomes greater than the rate at which protons are derived from hydrogen gas which is introduced onto the first electrode 3 via the diffusion-rate limiting portion 6. A hydrogen gas sensor capable of accurately measuring a hydrogen gas concentration of a measurement gas atmosphere in the presence of a variety of interfering gasses such as H 2 O and CO is thereby provided.

3. 发明公开

EP1074833A1 Method and apparatus for measuring NOx gas concentration 失效
标题翻译：用于测量NOx气体浓度的方法和设备
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
申请人： NGK SPARK PLUG CO., LTD
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。

4. 发明公开

EP0987547A2 Gas sensor 审中-公开
标题翻译：气体传感器
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
申请人： NGK SPARK PLUG CO., LTD
发明人： Sugaya, Satoshi , Nadanami, Norihiko , Ishida, Noboru , Oshima, Takafumi , Yamada, Tetsuo
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。

5. 发明公开

EP0472170A2 Supercharger 失效
标题翻译： Auflader。
公开(公告)号：EP0472170A2
公开(公告)日：1992-02-26
申请号：EP91113946.7
申请日：1991-08-20
申请人： NGK Spark Plug Co. Ltd.
发明人： Yoshikawa, Takaya , Ishida, Noboru
IPC分类号： F01D25/16 , F01D5/02
CPC分类号： F01D25/16 , F01D5/02 , F05D2220/40 , F16C19/548 , F16C25/083 , F16C2360/24
摘要： A turbocharger for an automotive vehicle is comprised of a rotatable shaft having a cup-shaped section to which an axial projection of a turbine wheel is fitted under a shrinkage fit. The rotatable shaft is rotatably supported by ball bearings. A nut is screwed on the rotatable shaft in a manner to clamp the ball bearings together with a compressor wheel between it and the cup-shaped section. The inner race of the ball bearing on the turbine wheel side is in axially tight contact with an abutting surface formed in the rotatable shaft. In this arrangement, a setting is made to safisfy the following formala:

ℓ/P ≧ 0.002

where ℓ is a distance (mm) in the rotatable shaft, between a bottom inner surface of the cup-shaped section and the abutting surface; and P is an axial tensile force developed by screwing up the nut in the direction of the cup-shaped section.
摘要翻译：用于机动车辆的涡轮增压器包括具有杯形部分的可旋转轴，涡轮机叶轮的轴向突出部在收缩配合下安装在该部分上。旋转轴由球轴承可转动地支撑。螺母被拧在可旋转轴上，以将球轴承与压缩机轮夹在其与杯形部分之间。涡轮机侧的球轴承的内圈与形成在可旋转轴中的邻接表面轴向紧密接触。在这种布置中，进行以下格式的设置：l / P> / = 0.002其中l是可旋转轴中的距离（mm），在杯状部分的底部内表面与抵接表面之间; 并且P是通过沿着杯形部分的方向拧紧螺母而产生的轴向张力。

6. 发明授权

EP1074834B1 Method and apparatus for measuring NOx gas concentration 失效
标题翻译：用于测量NOx气体浓度的方法和设备
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
申请人： NGK SPARK PLUG CO., LTD
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.

7. 发明公开

EP1445606A1 Gas sensor 审中-公开
标题翻译：气体传感器
公开(公告)号：EP1445606A1
公开(公告)日：2004-08-11
申请号：EP04002159.4
申请日：2004-01-30
申请人： NGK Spark Plug Co., Ltd.
发明人： Ishikawa, Hideki , Kitanoya, Shoji , Morita, Takeshi , Ishida, Noboru
IPC分类号： G01N27/407 , G01N33/00
CPC分类号： G01N33/005
摘要： There is provided a gas sensor for measuring the concentration of a specific gas component in a gas under measurement, including a gas diffusion rate limiting portion (27), a measurement chamber (21) communicating with an atmosphere of the gas under measurement through the gas diffusion rate limiting portion (27), a sensor element (7) having an ion-conductive layer (13) with first and second surfaces, a first electrode (15) disposed in contact with the first surface of the ion-conductive layer (13) within the measurement chamber (21) and a second electrode (17) disposed in contact with the second surface of the ion-conductive layer (13) and communicating exclusively with the atmosphere of the gas under measurement and a cylindrical support member (3) installing therein the sensor element (7) with the first and second surfaces of the ion-conductive layer (13) directed toward front and base end sides of the support member (3), respectively.
摘要翻译：本发明提供一种气体传感器，其用于测量被测量气体中的特定气体成分的浓度，该气体传感器包括气体扩散速度限制部分（27），通过气体与被测气体的气氛连通的测量室（21）扩散速率限制部分27，具有带第一和第二表面的离子传导层13的传感器元件7，设置成与离子传导层13的第一表面接触的第一电极15，）和与所述离子传导层（13）的所述第二表面接触设置且仅与所述被测气体的气氛连通的第二电极（17）以及圆柱形支撑构件（3），所述第二电极（17）在其中安装传感器元件（7），其中离子传导层（13）的第一和第二表面分别指向支撑构件（3）的前端和基端侧。

8. 发明授权

EP0845670B1 Method and apparatus for measuring NOx gas concentration 有权
标题翻译：的方法和装置的氮氧化物的测量
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
申请人： NGK SPARK PLUG CO., LTD
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

9. 发明公开

EP1022451A2 Method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine 有权
标题翻译：用于使用气体浓度传感器精确地控制在内燃发动机的空气 - 燃料比的方法和装置
公开(公告)号：EP1022451A2
公开(公告)日：2000-07-26
申请号：EP00300139.3
申请日：2000-01-11
申请人： NGK SPARK PLUG CO., LTD
发明人： Sato, Yoshikuni , Ishida, Noboru , Ishikawa, Hideki , Oshima, Takafumi , Sato, Yasushi
IPC分类号： F02D41/14
CPC分类号： F02D41/1459 , F02D41/0042 , F02D41/0045 , F02D41/144 , F02D41/2441 , F02D41/2474 , F02D2200/0614 , G01N2291/02809
摘要： The present invention provides a method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine, featuring in that before the fuel-vaporized gas purged from the canister enters into the intake manifold whereat the sensor detects the gas concentration of the purged gas, the sensor is adjusted so as to adjust a zero point (or zero output level) of the sensor output.
In step 100, a judgment is made as to whether the flow rate of air reaches a predetermined level. In step 110, processing for zero-point correction of the gas concentration sensor is performed. Specifically, in a state in which the purge valve 17 is closed, concentration of purge gas is measured by use of the gas concentration sensor 4, and a sensor output S1 at that time is obtained. Subsequently, the sensor output S1 is compared with a correct sensor output S0 in order to obtain a difference ΔS therebetween. Accordingly, during subsequent gas concentration measurement, a value S3 obtained through subtraction of the difference ΔS from an obtained sensor output S2 is used as a correct sensor output. In step 120, a supply amount of purge gas, i.e., a concentration of the purge gas to be supplied is obtained. In subsequent step 130, the purge valve 17 is driven in order to supply purge gas to the intake pipe 2 in a required amount (A%).
摘要翻译：本发明提供使用气体浓度传感器，用于精确地设置在控制内燃机的空气燃料比，具有在之前从罐吹扫燃料汽化气体进入进气歧管，在这里，传感器没有检测气体的方法和装置吹扫气体的浓度，所述传感器被调整，以调整零点传感器输出的（或零输出电平）。在步骤100中，判断作出是否空气的流速达到预定水平。在步骤110中，执行用于气体浓度传感器的零点校正处理。具体而言，在将净化阀17关闭的状态下，净化气体的浓度是通过使用气体浓度传感器4的测量，并且一个传感器的输出S1在没有时间被获得。随后，传感器输出S1被以正确的传感器输出S0，以便获得存在之间的差DELTA标准相比较。因此，随后的气体浓度测量过程中，一个值S3通过从获得的传感器输出S2被用作正确的传感器输出的差DELTA S的减法获得。在步骤120中，吹扫气体，即的供给量，所供给的净化气体的浓度被获得。之后的放气阀17，以供应吹扫气体到进气管2步骤130中，在一个所需的量（A％）驱动。

10. 发明公开

EP0930501A2 Method and sensor for measuring NOx concentration 有权
标题翻译： Verfahren zur Konzentrationsmessung von NOx
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
申请人： NGK Spark Plug Co. Ltd.
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℃

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式