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33 条记录 (耗时 0.017 秒)

    Hydrogen gas sensor
    2.
    发明公开
    Hydrogen gas sensor 有权
    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.

    Gas sensor
    4.
    发明公开
    Gas sensor 审中-公开
    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。

    Supercharger
    5.
    发明公开
    Supercharger 失效
    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。

    Piezoelectric sensor and method for manufacturing the same
    8.
    发明公开
    Piezoelectric sensor and method for manufacturing the same 审中-公开
    Piezoelektrischer传感器和Verfahren zur Herstellung desselben

    公开(公告)号：EP1353175A3

    公开(公告)日：2005-07-20

    申请号：EP03007959.4

    申请日：2003-04-09

    申请人： NGK SPARK PLUG CO., LTD

    发明人： Ishikawa, Hideki ,  Sato, Yoshikuni ,  Banno, Keigo ,  Sakamoto, Masashi ,  Ishida, Noboru ,  Oshima, Takafumi

    IPC分类号： G01N29/22 ,  G01N29/24 ,  G01N29/02

    CPC分类号： G01N29/223 ,  G01N2291/021 ,  G01N2291/02809 ,  G01N2291/02818 ,  G01N2291/02881

    摘要： A detecting-element assembly 40 is configured such that a piezoelectric element 51 is housed in a casing body portion 43 of a casing 42, and is attached to a housing portion 22 of a flow path formation member 20 via a flange portion 41. Therefore, the path between the piezoelectric element 51 and the position of attachment of the detecting-element assembly 40 is elongated, whereby ultrasonic waves which leak into the interior of the detecting-element assembly 40 from the piezoelectric element 51 become unlikely to reflectively return from a joint. Thus, the influence of, for example, noise stemming from reflected waves is reduced, thereby enhancing the accuracy of detection. An average clearance of 1 millimeter or more is provided along the outer circumferential surface of the casing body portion 43 of the detecting-element assembly 40, whereby a problem of collected foreign matter is unlikely to occur.

    摘要翻译： 检测元件组件40被构造成使得压电元件51容纳在壳体42的壳体主体部分43中，并且经由凸缘部分41附接到流路形成构件20的容纳部分22。 压电元件51与检测元件组件40的安装位置之间的路径是细长的，由此从压电元件51泄漏到检测元件组件40的内部的超声波不可能从接头反射回来 。 因此，例如由反射波产生的噪声的影响降低，从而提高检测的准确性。 沿着检测元件组件40的壳体主体部分43的外圆周表面设置了1毫米或更大的平均间隙，由此不可能发生收集的异物问题。

    Method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine
    9.
    发明公开
    Method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine 有权
    使用气体浓度传感器用于精确地控制内燃机的空气燃料比的方法和装置

    公开(公告)号：EP1022451A3

    公开(公告)日：2002-12-04

    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 ,  F02D35/00 ,  G01N33/00

    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%).

    Method and sensor for measuring NOx concentration
    10.
    发明公开
    Method and sensor for measuring NOx concentration 有权
    用于测量的NOx的浓度的方法和传感器

    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

    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 ,  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.