公开(公告)号：US06554983B2

公开(公告)日：2003-04-29

申请号：US09810180

申请日：2001-03-19

申请人： Hiroo Imamura ,  Toshitaka Saito ,  Keigo Mizutani ,  Daisuke Makino

发明人： Hiroo Imamura ,  Toshitaka Saito ,  Keigo Mizutani ,  Daisuke Makino

IPC分类号： G01N27407

CPC分类号： G01N27/419

摘要： An objective gas is successively introduced into first and second chambers which are connected via a narrow passage. A first monitor cell, provided on a surface of the first chamber, generates an electromotive force representing an oxygen concentration in the first chamber. A second monitor cell, provided on a surface of the second chamber, generates an electromotive force representing an oxygen concentration in the second chamber. A voltage applied to a pump cell is controlled based on the electromotive forces obtained from the first and second monitor cells.

公开(公告)号：US20090084673A1

公开(公告)日：2009-04-02

申请号：US11994093

申请日：2006-06-29

申请人： Itsuhei Ogata ,  Daisuke Makino ,  Satoshi Nakamura ,  Hiroo Imamura ,  Akio Tanaka

发明人： Itsuhei Ogata ,  Daisuke Makino ,  Satoshi Nakamura ,  Hiroo Imamura ,  Akio Tanaka

IPC分类号： C04B35/48

CPC分类号： G01N27/4077 ,  B32B18/00 ,  B82Y30/00 ,  C04B35/119 ,  C04B35/443 ,  C04B35/4885 ,  C04B35/62635 ,  C04B35/62655 ,  C04B35/63416 ,  C04B2235/3244 ,  C04B2235/3246 ,  C04B2235/5454 ,  C04B2235/6021 ,  C04B2235/6025 ,  C04B2235/604 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/94 ,  C04B2235/96 ,  G01N27/4073

摘要： There is described a gas sensor element 1 including a solid electrolyte body 11, insulators 15, 141, 142, 197, 161, 162, 163, 164, 165, and a pair of electrodes 121, 131 formed such that the solid electrolyte body 11 is held therebetween. The gas sensor element 1 satisfies the following requirement (a) and/or the requirement (b). (a) The solid electrolyte body 11 is made of ion-conductive composite material in which nanoparticles with specific particle diameters are dispersed in ion-conductive ceramics. (b) The insulators 15, 141, 197, 161, 162, 163, 164, 165 are made of insulative composite material in which nanoparticles with specific particle diameters are dispersed in insulative ceramics. Further, there is described a manufacturing method of a gas sensor element in which the particle diameter and dispersion quantity of the nanoparticles dispersed in the solid electrolyte body 11 and/or insulative ceramics 11 are controlled.

摘要翻译： 描述了一种气体传感器元件1，其包括固体电解质体11，绝缘体15,141,142,197,161,162,163,164,165和一对电极121,131，其形成为使得固体电解质体11 在它们之间。 气体传感器元件1满足以下要求（a）和/或要求（b）。 （a）固体电解质体11由离子导电性复合材料制成，其中具有特定粒径的纳米颗粒分散在离子导电陶瓷中。 （b）绝缘体15,141,197,161,162,163,164,165由绝缘复合材料制成，其中具有特定粒径的纳米颗粒分散在绝缘陶瓷中。 此外，还描述了其中分散在固体电解质体11和/或绝缘陶瓷11中的纳米颗粒的粒径和分散量被控制的气体传感器元件的制造方法。

公开(公告)号：US07007543B2

公开(公告)日：2006-03-07

申请号：US10686773

申请日：2003-10-17

申请人： Toshihiro Sakawa ,  Daisuke Makino ,  Hiroo Imamura ,  Fumihiko Sato ,  Katsuya Hirai

发明人： Toshihiro Sakawa ,  Daisuke Makino ,  Hiroo Imamura ,  Fumihiko Sato ,  Katsuya Hirai

IPC分类号： G01N27/407

CPC分类号： G01N27/4077

摘要： An air-fuel ratio sensor includes a sensor element inserted through a cylindrical housing for detecting an air-fuel ratio in an atmosphere of unburnt gas, and a measured gas side cover disposed on an end of the cylindrical housing so as to cover the sensor element and defining an inside chamber for storing therein a gas to be measured. The cover has a nested structure composed of a plurality of cup-shaped cover members disposed one inside another, each cover member having a gas inlet hole formed in a side wall thereof and a bottom hole formed in a bottom wall thereof. The gas inlet hole of an innermost one of the plural cover members that directly faces the sensor element is offset from an air-fuel ratio detecting portion of the sensor element toward the housing in an axial direction of the sensor.

摘要翻译： 空燃比传感器包括：插入通过圆柱形壳体的传感器元件，用于检测未燃气体的空气中的空燃比;以及测量气体侧盖，设置在圆柱形壳体的端部上，以覆盖传感器元件 并且限定用于在其中存储要测量的气体的内部室。 盖具有由多个彼此设置的杯形盖构件组成的嵌套结构，每个盖构件具有形成在其侧壁中的气体入口孔和形成在其底壁中的底孔。 直接面向传感器元件的多个盖构件中最内侧的气体入口孔沿着传感器的轴向朝向壳体偏离传感器元件的空燃比检测部。

公开(公告)号：US06279376B1

公开(公告)日：2001-08-28

申请号：US09405837

申请日：1999-09-27

申请人： Masaru Yamada ,  Kengo Toguchi ,  Hidetaka Hayashi ,  Satoshi Nakamura ,  Hiroo Imamura ,  Daisuke Makino

发明人： Masaru Yamada ,  Kengo Toguchi ,  Hidetaka Hayashi ,  Satoshi Nakamura ,  Hiroo Imamura ,  Daisuke Makino

IPC分类号： G01N27407

CPC分类号： G01N27/4077

摘要： A gas sensor has a housing, a gas sensing element held by the housing and having a gas contact portion and an element cover for covering the gas contact portion. The element cover has a double pipe structure formed by layering an outer pipe and an inner pipe. The outer pipe has an outer bottom portion having an outer bottom hole and an outer side portion having plural outer side holes. The inner pipe has an inner bottom portion having an inner bottom hole and an inner side portion having plural inner side holes disposed not to overlap the outer side holes. A spacing D of 0.2-1.0 mm is formed between the outer bottom portion and the inner bottom portion. As a result, flow resistance in the spacing D is relatively high, and the sample gas sufficiently and more smoothly flows toward the gas sensing element. Therefore, the element cover prevents condensed water from entering the inside of the gas sensor and improves response of the gas sensor.

摘要翻译： 气体传感器具有壳体，由壳体保持的气体感测元件，并具有气体接触部分和用于覆盖气体接触部分的元件盖。 元件盖具有通过分层外管和内管形成的双管结构。 外管具有外底部的外底部和具有多个外侧孔的外侧部。 内管具有内底部底部和内侧部分，内侧部分具有多个设置成不与外侧孔重叠的内侧孔。 在外底部和内底部之间形成间距D为0.2-1.0mm。 结果，间隔D中的流动阻力相对较高，并且样品气体充分且更平稳地流向气体感测元件。 因此，元件盖防止冷凝水进入气体传感器的内部并改善气体传感器的响应。

公开(公告)号：US20050274615A1

公开(公告)日：2005-12-15

申请号：US11151593

申请日：2005-06-14

申请人： Susumu Naito ,  Hiroo Imamura

发明人： Susumu Naito ,  Hiroo Imamura

IPC分类号： G01N27/26 ,  G01N27/407

CPC分类号： G01N27/4072 ,  G01N27/4071

摘要： A gas sensing element includes a solid electrolyte body having oxygen ionic conductivity, a measured gas side electrode provided on one surface of the solid electrolyte body, and a reference gas side electrode provided on the other surface of the solid electrolyte body. The measured gas side electrode is positioned in a chamber space. The gas sensing element has an introducing hole connecting the chamber space to a measured gas atmosphere outside of the gas sensing element. The introducing hole is filled with a porous member having an average pore diameter of 2 to 30 μm.

摘要翻译： 气体感测元件包括具有氧离子传导性的固体电解质体，设置在固体电解质体的一个表面上的测量气体侧电极和设置在固体电解质体的另一个表面上的参考气体侧电极。 测量的气体侧电极位于腔室中。 气体感测元件具有将腔室空间连接到气体感测元件外部的测量气体气氛的引入孔。 引入孔填充有平均孔径为2〜30μm的多孔构件。

公开(公告)号：US6104128A

公开(公告)日：2000-08-15

申请号：US335181

申请日：1999-06-17

申请人： Akira Fujii ,  Takumi Kataoka ,  Hiroo Imamura ,  Eturo Yasuda

发明人： Akira Fujii ,  Takumi Kataoka ,  Hiroo Imamura ,  Eturo Yasuda

IPC分类号： C04B35/49 ,  C04B35/491 ,  H01L41/107 ,  H01L41/187

CPC分类号： H01L41/107 ,  C04B35/491 ,  H01L41/187

摘要： PZT piezoelectric ceramics for forming a piezoelectric transformer includes a main composition consisting of Pb [Zr.sub.A Ti.sub.B (Zn.sub.1/3 Nb.sub.2/3).sub.c (Mn.sub.1/2 W.sub.1/2).sub.D ]O.sub.3. When A/B is in a range of 0.92-1.13, C is 0 or larger, D is in a range of 0.02-0.08 and total of A, B, C and D is 1, the piezoelectric transformer is fired at 1,100.degree. C. or lower, while having relatively high voltage rising ratio and efficiency. Therefore, a relatively low-priced Ag--Pd electrode having heat resistance of approximately 1,100.degree. C. can be used as an inside electrode of a laminated-type transformer. Thus, production cost of the piezoelectric transformer is reduced while the transformer has relatively high voltage rising ratio and efficiency.

摘要翻译： 用于形成压电变压器的PZT压电陶瓷包括由Pb [ZrATiB（Zn + E，fra 1/3 + EE Nb + E，fra 2/3 + EE）c（Mn + E， EE W + E，fra 1/2 + EE）D] O 3。 当A / B在0.92-1.13的范围内时，C为0以上，D为0.02〜0.08的范围，A，B，C，D的合计为1，压电变压器在1100℃ 或更低，同时具有相对高的升压比和效率。 因此，可以使用具有大约1100℃的耐热性的相对低价格的Ag-Pd电极作为层叠型变压器的内部电极。 因此，压电变压器的生产成本降低，而变压器具有较高的升压比和效率。