公开(公告)号：US20120159771A1

公开(公告)日：2012-06-28

申请号：US13412026

申请日：2012-03-05

申请人： Yoshio SUZUKI ,  Yuji Okuda ,  Kunihiko Nakagaki

发明人： Yoshio SUZUKI ,  Yuji Okuda ,  Kunihiko Nakagaki

IPC分类号： B23P17/04

CPC分类号： G01N27/4071 ,  G01N27/4073 ,  Y10T29/49

摘要： A gas sensor element, wherein an amount of flexure in a first section extending in a longitudinal direction of the sensor element from the position 8/27 of a size of the element apart from one end of the element to the other end, is set to be greater than or equal to 1/1360 and less than or equal to 1/670 with respect to the size in the longitudinal direction of the element. The amount of flexure is a sum of a distance from a regression line to an upper side maximum displacement point and a distance from the regression line to a lower side maximum displacement point when calculating the regression line representing the relation of the position X in the longitudinal direction of the element and the displacement Y in a thickness direction from a plurality of data sets showing the relation of position X and displacement Y.

摘要翻译： 一种气体传感器元件，其中在从所述元件的一端的尺寸的距离从所述元件的尺寸的位置8/27延伸到所述传感器元件的纵向方向上的第一部分中的挠曲量被设置为 相对于元件的纵向尺寸大于或等于1/1360且小于或等于1/670。 弯曲量是当计算表示纵向中的位置X的关系的回归线时，从回归线到上侧最大位移点的距离和从回归线到下侧最大位移点的距离之和 元件的方向和从表示位置X和位移Y的关系的多个数据集合在厚度方向上的位移Y.

公开(公告)号：US20090120791A1

公开(公告)日：2009-05-14

申请号：US12349707

申请日：2009-01-07

申请人： Takeya Miyashita ,  San Jae Lee ,  Kunihiko Nakagaki

发明人： Takeya Miyashita ,  San Jae Lee ,  Kunihiko Nakagaki

IPC分类号： G01N27/417

CPC分类号： G01N27/4077 ,  G01N27/4072 ,  G01N27/417

摘要： A gas sensor and nitrogen oxide sensor, which, when fitted to the exhaust system of an internal combustion engine, can suppress the influence of harmful substances contained in a measurement gas and can prevent the reduction in sensitivity over time. A harmful substance-trapping layer is formed at a gas inlet for introducing a to-be-measured gas from an external space into an internal space, and in a buffering space formed between diffusion resistance portions. In a trap-formed portion of a gas passage in which the harmful substance-trapping layer is formed, the measurement gas can pass in an amount of 80% or more of when the harmful substance-trapping layer is not formed in the trap-formed portion. A diffusion resistance is attained in the diffusion resistance portions; a harmful substance is trapped in the harmful substance-trapping layer; and the measurement gas is allowed to flow into a detection electrode side.

摘要翻译： 一种气体传感器和氮氧化物传感器，当装配到内燃机的排气系统时，可以抑制测量气体中所含的有害物质的影响，并且可以防止随时间的灵敏度降低。 在气体入口形成有害物质捕获层，用于将待测气体从外部空间引入内部空间，并形成在扩散阻力部分之间形成的缓冲空间中。 在其中形成有害物质捕获层的气体通道的陷阱形成部分中，当陷阱形成的有害物质捕获层未形成时，测量气体可以通过80％以上的量 一部分。 在扩散电阻部分中获得扩散电阻; 有害物质被捕获在有害物质捕获层中; 使测定气体流入检测电极侧。

公开(公告)号：US20060231397A1

公开(公告)日：2006-10-19

申请号：US11451825

申请日：2006-06-13

申请人： Kunihiko Nakagaki ,  Hideyuki Suzuki ,  Sang Lee

发明人： Kunihiko Nakagaki ,  Hideyuki Suzuki ,  Sang Lee

IPC分类号： G01N27/26

CPC分类号： G01N27/4075 ,  G01N27/4045

摘要： A technology which makes it possible to prolong the service life of a porous electrode constituted by a sintered body of an electrode metal material and a ceramic material, and the service life of an NOx sensor element having the porous electrode. The porous electrode is produced so as to have a total pore volute of at least 0.013 ml/g and a peak pore diameter of at least 0.31 μm as measured by mercury penetration method, by a process wherein a composition which includes the electrode material and the ceramic material and to which a vanishable solid material that vanishes by firing is formed into a thin film, which is then fired to form the sintered body which consists of the electrode material and the ceramic material and which has a multiplicity of pores formed as a result of vanishing of the vanishable solid material.

摘要翻译： 可以延长由电极金属材料和陶瓷材料的烧结体构成的多孔电极的使用寿命以及具有多孔电极的NOx传感器元件的使用寿命的技术。 通过以下方法制造多孔电极，以使其具有至少0.013ml / g的总细孔径和至少0.31μm的峰值孔径，其中包括电极材料和 陶瓷材料，通过烧成而消失的可消除的固体材料形成为薄膜，然后将其烧制以形成由电极材料和陶瓷材料组成并且具有多个孔的结构的烧结体 消失的固体物质消失。

公开(公告)号：US06527929B2

公开(公告)日：2003-03-04

申请号：US10021196

申请日：2001-10-30

申请人： Nobuhide Kato ,  Kunihiko Nakagaki

发明人： Nobuhide Kato ,  Kunihiko Nakagaki

IPC分类号： G01N27407

CPC分类号： G01N27/4072 ,  G01N27/417 ,  G01N27/419

摘要： A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.

公开(公告)号：US06196053B1

公开(公告)日：2001-03-06

申请号：US09565401

申请日：2000-05-05

申请人： Nobuhide Kato ,  Kunihiko Nakagaki

发明人： Nobuhide Kato ,  Kunihiko Nakagaki

IPC分类号： G01N2741

CPC分类号： G01N27/419 ,  F02D2041/1468 ,  G01N27/4074

摘要： A method and a sensing device of measuring a concentration of a gas component of a measurement gas, which method includes the steps of: introducing the measurement gas containing the gas component, from an external measurement-gas space into a first internal space, under a diffusion resistance; controlling an amount of oxygen in the measurement gas within the first internal space, so as to produce an atmosphere which does not substantially affect measurement of the gas component and which does not convert the gas component; introducing the atmosphere from the first internal space into a second internal space, under a diffusion resistance; and measuring the concentration of the gas component present in the atmosphere in the second internal space.

摘要翻译： 一种测量测量气体的气体成分浓度的方法和检测装置，该方法包括以下步骤：将含有气体成分的测量气体从外部测量气体空间引入第一内部空间， 扩散阻力; 控制第一内部空间内的测量气体中的氧气量，以产生实质上不影响气体成分测量且不转化气体组分的气氛; 将气氛从第一内部空间引入第二内部空间，在扩散阻力下; 并且测量存在于第二内部空间中的气氛中的气体成分的浓度。

公开(公告)号：US5942190A

公开(公告)日：1999-08-24

申请号：US802280

申请日：1997-02-19

申请人： Nobuhide Kato ,  Kunihiko Nakagaki

发明人： Nobuhide Kato ,  Kunihiko Nakagaki

IPC分类号： G01N27/407 ,  G01N27/416 ,  G01N27/419 ,  G01N27/41

CPC分类号： G01N27/4074 ,  G01N27/419 ,  Y10T436/177692 ,  Y10T436/179228

摘要： Disclosed is an oxide sensor in which a measuring electrode is arranged at a distance d to satisfy -3t.ltoreq.d.ltoreq.3t for a downstream end of an inner pumping electrode for a first chamber, i.e., the end located on a side of a second diffusion rate-determining section, provided that d represents a distance between the measuring electrode and the downstream end in a positive direction directed from the first chamber to a second chamber, and t represents a height of the first chamber. A partial pressure of oxygen in the first chamber is measured by using the measuring electrode. A main pumping cell is subjected to feedback control on the basis of a measured value so that the partial pressure of oxygen in the first chamber is controlled. After that, a measurement gas is introduced into the second chamber. Oxides contained in the measurement gas are decomposed by the aid of a detecting electrode or a catalyst. A partial pressure of oxygen produced by the decomposition is measured to determine the concentration of the oxides. Accordingly, it is possible to measure the oxides contained in the measurement gas with an extremely high degree of accuracy. Moreover, the obtainable oxide sensor is compact and inexpensive.

摘要翻译： 公开了一种氧化物传感器，其中，对于第一室的内部泵送电极的下游端，即位于一侧的端部，距离d设置测量电极以满足-3t≤d≤3t 第二扩散速率确定部分，其中d表示测量电极和从第一室指向第二室的正方向上的下游端之间的距离，t表示第一室的高度。 通过使用测量电极测量第一室中的氧的分压。 基于测量值对主泵送单元进行反馈控制，从而控制第一室中的氧分压。 之后，将测量气体引入第二室。 包含在测量气体中的氧化物通过检测电极或催化剂分解。 测量分解产生的氧分压，以确定氧化物的浓度。 因此，能够以极高的精度测定测定气体中所含的氧化物。 此外，可获得的氧化物传感器是紧凑且便宜的。

公开(公告)号：US5902469A

公开(公告)日：1999-05-11

申请号：US820351

申请日：1997-03-12

申请人： Nobuhide Kato ,  Kunihiko Nakagaki

发明人： Nobuhide Kato ,  Kunihiko Nakagaki

IPC分类号： G01N27/41 ,  G01N27/407 ,  G01N27/416 ,  G01N27/419

CPC分类号： G01N27/4074 ,  G01N27/419

摘要： Disclosed is a gas sensor comprising inner pumping electrodes arranged on upper and lower surfaces and both side surfaces in a first chamber so that O.sub.2 contained in a measurement gas introduced through a first diffusion rate-determining section is effectively removed by the aid of a pumping voltage applied between the inner pumping electrodes and an outer pumping electrode. After the removal of O.sub.2, the measurement gas is introduced into a second chamber through a second diffusion rate-determining section so that oxides contained in the measurement gas are decomposed by the aid of a detecting electrode, or O.sub.2 is bound to inflammable gases contained in the measurement gas. An amount of oxygen moved or transported in accordance therewith is measured to determine the concentration of the oxides or the inflammable gases. Accordingly, the oxygen contained in the measurement gas can be effectively controlled, making it possible to highly accurately measure the oxides or the inflammable gases.

摘要翻译： 公开了一种气体传感器，其包括布置在第一室中的上表面和下表面以及两个侧表面上的内部泵浦电极，使得通过第一扩散速率确定部分引入的测量气体中包含的O2被有效地通过泵浦电压 施加在内部泵送电极和外部泵浦电极之间。 在除去O 2之后，通过第二扩散速率确定部将测量气体引入第二室，借助于检测电极使包含在测量气体中的氧化物分解，或者O 2与包含在其中的可燃气体结合 测量气体。 测量根据其移动或运输的氧气量以确定氧化物或易燃气体的浓度。 因此，可以有效地控制测量气体中所含的氧气，从而可以高精度地测量氧化物或易燃气体。

公开(公告)号：US5672811A

公开(公告)日：1997-09-30

申请号：US681363

申请日：1996-07-23

申请人： Nobuhide Kato ,  Kunihiko Nakagaki

发明人： Nobuhide Kato ,  Kunihiko Nakagaki

IPC分类号： G01N27/407 ,  G01N27/419 ,  G01N33/00 ,  G01N27/41

CPC分类号： G01N27/419 ,  G01N27/4074 ,  F02D2041/1468

摘要： A method and a sensing device of measuring a concentration of a gas component of a measurement gas, which method includes the steps of: introducing the measurement gas containing the gas component, from an external measurement-gas space into a first internal space, under a diffusion resistance; controlling an amount of oxygen in the measurement gas within the first internal space, so as to produce an atmosphere which does not substantially affect measurement of the gas component and which does not convert the gas component; introducing the atmosphere from the first internal space into a second internal space, under a diffusion resistance; and measuring the concentration of the gas component present in the atmosphere in the second internal space.

摘要翻译： 一种测量测量气体的气体成分浓度的方法和检测装置，该方法包括以下步骤：将含有气体成分的测量气体从外部测量气体空间引入第一内部空间， 扩散阻力; 控制第一内部空间内的测量气体中的氧气量，以产生实质上不影响气体成分测量且不转化气体组分的气氛; 将气氛从第一内部空间引入第二内部空间，在扩散阻力下; 并且测量存在于第二内部空间中的气氛中的气体成分的浓度。

公开(公告)号：US08460527B2

公开(公告)日：2013-06-11

申请号：US12036383

申请日：2008-02-25

申请人： Yoshio Suzuki ,  Kouji Tagawa ,  Kunihiko Nakagaki

发明人： Yoshio Suzuki ,  Kouji Tagawa ,  Kunihiko Nakagaki

IPC分类号： G01N27/407

CPC分类号： G01N27/4073

摘要： A gas sensor contains a sensor element for detecting the concentration of a particular gas component in a measurement gas and a housing for supporting the sensor element inside, and the sensor element has a rectangular solid structure of a solid electrolyte body containing a ceramic material. In the gas sensor, four edges of the solid electrolyte body are beveled over the entire length thereof to form eleventh to fourteenth chamfered portions corresponding to the four edges.

摘要翻译： 气体传感器包括用于检测测量气体中的特定气体成分的浓度的传感器元件和用于将传感器元件支撑在内部的壳体，并且传感器元件具有包含陶瓷材料的固体电解质体的矩形固体结构。 在气体传感器中，固体电解质体的四个边缘在其整个长度上被倒角以形成对应于四个边缘的第十一至第十四倒角部分。

公开(公告)号：US08163148B2

公开(公告)日：2012-04-24

申请号：US11967328

申请日：2007-12-31

申请人： Kunihiko Nakagaki ,  Hideyuki Suzuki ,  Osamu Nakasone

发明人： Kunihiko Nakagaki ,  Hideyuki Suzuki ,  Osamu Nakasone

IPC分类号： G01N27/407

CPC分类号： G01N27/419

摘要： A gas sensor element including: a sensor layer in which at least one pair of electrodes are provided in a solid electrolyte for measuring an electromotive force based on a difference in an oxygen concentration between atmospheres; and a heater layer which includes a heater element with a heat generating portion and an electrically insulating layer disposed so as to enclose the heater element and which is configured to heat, by an electric current supplied to the heater element, at least a portion of the solid electrolyte at which the at least one pair of electrodes are provided, the sensor layer and the heater layer being laminated integrally on each other, wherein the electrically insulating layer contains at least one metal oxide selected from the group consisting of alkali metal oxide and alkaline earth metal oxide.

摘要翻译： 一种气体传感器元件，包括：传感器层，其中至少一对电极设置在固体电解质中，用于基于气氛之间的氧浓度差来测量电动势; 以及加热器层，其包括具有发热部分的加热器元件和设置为包围加热器元件的电绝缘层，并且被配置为通过供应到加热器元件的电流来加热至少一部分 固体电解质，其中设置有至少一对电极，所述传感器层和所述加热器层彼此层叠在一起，其中所述电绝缘层包含至少一种选自碱金属氧化物和碱金属的金属氧化物 地球金属氧化物。