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1. 发明授权

US07007543B2 Air-fuel ratio sensor 有权
标题翻译：空燃比传感器
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。

2. 发明授权

US06202469B1 Gas concentration detecting device 失效
标题翻译：气体浓度检测装置
公开(公告)号：US06202469B1
公开(公告)日：2001-03-20
申请号：US08953480
申请日：1997-10-17
申请人： Satoshi Nakamura , Masanori Yamada , Michihiro Wakimoto , Daisuke Makino , Hideomi Kawachi , Toshihiro Sakawa
发明人： Satoshi Nakamura , Masanori Yamada , Michihiro Wakimoto , Daisuke Makino , Hideomi Kawachi , Toshihiro Sakawa
IPC分类号： G01N2712
CPC分类号： G01N27/4077
摘要： A gas concentration detecting device for detecting the concentration of a component, such as an oxygen in an exhaust gas of an internal combustion engine. The device has a concentration detecting body 2 for detecting the oxygen and a cover 3 of a double wall structure which is for encircling the portion of the detecting body opened to the flow of the exhaust gas to be detected. The cover 3 has, at its axial tip end wall, a plurality of holes 33 and 34 arranged in such a manner that one of the holes functions as a gas inlet hole and the other hole functions as a gas outlet hole in order to cause the gas to be smoothly ventilated. The cover has, at its side, a wall of a closed structure with no hole for the passage of the gas, which is effective for preventing the cover 3 and the detecting body 2 from being cooled by the exhaust gas, thereby enhancing a heat retaining capacity, thereby preventing particulates from being deposited.
摘要翻译：一种气体浓度检测装置，用于检测内燃机的废气中的诸如氧的组分的浓度。该装置具有用于检测氧的浓度检测体2和双层壁结构的盖3，该双层壁结构的盖3围绕检测体的对待检测的排气的流动开放的部分。盖3在其轴向端壁处具有多个孔33和34，孔33和34布置成使得一个孔用作气体入口孔，另一个孔用作气体出口孔，以便引起气体通风顺畅。该盖在其侧面具有没有用于气体通过的孔的封闭结构的壁，这有效地防止盖3和检测体2被废气冷却，从而增强了热量的保持容量，从而防止颗粒沉积。

3. 发明授权

US06258234B1 Air fuel ratio sensor 有权
标题翻译：空燃比传感器
公开(公告)号：US06258234B1
公开(公告)日：2001-07-10
申请号：US09540535
申请日：2000-03-31
申请人： Isao Watanabe , Michihiro Yamakawa , Masanori Fukutani , Toshihiro Sakawa , Nobuyuki Tsuji , Minoru Ohta
发明人： Isao Watanabe , Michihiro Yamakawa , Masanori Fukutani , Toshihiro Sakawa , Nobuyuki Tsuji , Minoru Ohta
IPC分类号： G01N2726
CPC分类号： G01N27/4077 , G01N27/407 , G01N27/4078
摘要： Air fuel ratio sensor for use in an exhaust gas purification system for an internal combustion engine. The sensor has an outer and inner cover 12 and 13 for protection of lead wires 16, 18 and 19 to a detecting element 3 and a heater 5 of the sensor, a rubber seal for 2 for obtaining a sealing between the covers and the lead wires and a water repellent filter 36 for obtaining a seal between the inner and outer covers 12 and 13, while keeping an air ventilation capability of the space inside the covers. For receiving the lead wires 16, 18 and 19, the seal 2 is formed with holes 20 such that the minimum thickness between the holes and the minimum thickness between the hole and an outer surface of the seal is 1 mm or more. A crimping of the outer cover 12 is done so that a deformation of the seal 2 in a range between 10 to 20% of the outer diameter is obtained. A crimping of the outer cover 12 is further done at a first section 12A at a larger force for fixation of the outer cover 12 to the inner cover 12 and at a second section 12B at a smaller force for holding the water repellent filter 36 between the outer and inner covers. In the crimping, the crimping at the first section is completed simultaneously or earlier from the completion of the crimping at the second section.
摘要翻译：用于内燃机排气净化系统的空燃比传感器。传感器具有外盖和内盖12和13，用于将导线16,18和19保护到传感器的检测元件3和加热器5;橡胶密封件2，用于获得盖和导线之间的密封以及用于在保持盖内的空间的空气通气能力的同时在内盖12和外盖13之间获得密封的防水过滤器36。为了接收引线16,18和19，密封件2形成有孔20，使得孔之间的最小厚度和孔与密封件的外表面之间的最小厚度为1mm以上。进行外盖12的压接，使得密封件2的变形在外径的10％至20％之间的范围内。外罩12的压接在第一部分12A处进一步进行，用于以较小的力将外盖12固定到内盖12和第二部分12B上的力，用于将防水过滤器36保持在外盖和内盖之间。在卷曲中，第一部分的卷曲在第二部分的卷曲完成的同时或更早地完成。

4. 发明授权

US5688390A Oxygen concentration sensor 失效
标题翻译：氧浓度传感器
公开(公告)号：US5688390A
公开(公告)日：1997-11-18
申请号：US584464
申请日：1996-01-11
申请人： Masanobu Yamauchi , Isao Watanabe , Toshihiro Sakawa
发明人： Masanobu Yamauchi , Isao Watanabe , Toshihiro Sakawa
IPC分类号： G01N27/409 , G01N27/407
CPC分类号： G01N27/4077 , G01N27/407 , G01N27/4071 , G01N27/4078
摘要： A laminated type oxygen concentration sensor includes a laminated type oxygen concentration sensor element having a plate shape with a flange on a side surface thereof, and a housing in a tubular shape having an inclination seat inclined in a central axial direction thereof. The housing supports the laminated type oxygen concentration sensor element by contacting the inclination seat with the flange of the laminated type oxygen concentration sensor element at an outer circumference of the inclination seat. Since the sensor element is supported by contacting the flange with the inclination seat of the housing at the outer circumference of the inclination seat, the pressure per unit area imposed on the sensor element is minimized and cracking of the sensor element is prevented.
摘要翻译：叠层型氧浓度传感器包括具有在其侧表面上具有凸缘的板形的层叠型氧浓度传感器元件和具有在其中心轴线方向上倾斜的倾斜座的管状形状的壳体。壳体通过使倾斜座与层叠型氧浓度传感器元件的凸缘在倾斜座的外周接触来支撑层叠型氧浓度传感器元件。由于传感器元件通过使凸缘与倾斜座的外周处的壳体的倾斜座接触来支撑，所以施加在传感器元件上的每单位面积的压力被最小化并且防止了传感器元件的破裂。

5. 发明授权

US5948226A Oxygen concentration detector 失效
标题翻译：氧浓度检测仪
公开(公告)号：US5948226A
公开(公告)日：1999-09-07
申请号：US582476
申请日：1996-01-03
申请人： Toshihiro Sakawa , Taiji Yokoyama , Michihiro Yamakawa
发明人： Toshihiro Sakawa , Taiji Yokoyama , Michihiro Yamakawa
IPC分类号： G01N27/409 , G01N27/407 , H01R4/64
CPC分类号： H01R4/64 , G01N27/407 , G01N27/4078
摘要： An oxygen concentration detector easily assembled without producing conducting malfunctions at an external electrode includes a cylindrical housing and a detecting element being inserted into and disposed inside the housing. Powdery seal materials made of ceramic power are filled under pressure between a top portion of the detecting element and the housing. The detecting element has the external electrode at an external surface thereof and a lead portion extending upwardly from the external electrode. A ring-shaped conducting member is installed between the lead portion of the detecting element and the housing as a ground to conduct electricity therebetween and has a resilient contacting piece in contact with the lead portion at an inner peripheral portion of the ring-shaped conducting member.
摘要翻译：在外部电极上容易组装而不产生导通故障的氧浓度检测器包括：一个圆柱形壳体和一个插入并设置在壳体内部的检测元件。由陶瓷动力制成的粉状密封材料在检测元件的顶部和壳体之间的压力下被填充。检测元件的外表面具有外部电极和从外部电极向上延伸的引线部分。环状导电部件安装在检测元件的引线部分和壳体之间作为接地，以在其间导电，并且在环形导电部件的内周部分具有与引线部分接触的弹性接触片。

6. 发明授权

US5874664A Air fuel ratio sensor and method for assembling the same 失效
标题翻译：空燃比传感器及其组装方法
公开(公告)号：US5874664A
公开(公告)日：1999-02-23
申请号：US787016
申请日：1997-01-29
申请人： Isao Watanabe , Michihiro Yamakawa , Masanori Fukutani , Toshihiro Sakawa , Nobuyuki Tsuji , Minoru Ohta
发明人： Isao Watanabe , Michihiro Yamakawa , Masanori Fukutani , Toshihiro Sakawa , Nobuyuki Tsuji , Minoru Ohta
IPC分类号： G01N27/407 , G01N27/00 , G01M15/00
CPC分类号： G01N27/4077 , G01N27/407 , G01N27/4078
摘要： Air fuel ratio sensor for use in an exhaust gas purification system for an internal combustion engine. The sensor has an outer and inner cover 12 and 13 for protection of lead wires 16, 18 and 19 to a detecting element 3 and a heater 5 of the sensor, a rubber seal for 2 for obtaining a sealing between the covers and the lead wires and a water repellent filter 36 for obtaining a seal between the inner and outer covers 12 and 13, while keeping an air ventilation capability of the space inside the covers. For receiving the lead wires 16, 18 and 19, the seal 2 is formed with holes 20such that the minimum thickness between the holes and the minimum thickness between the hole and an outer surface of the seal is 1 mm or more. A crimping of the outer cover 12 is done so that a deformation of the seal 2 in a range between 10 to 20% of the outer diameter is obtained.A crimping of the outer cover 12 is further done at a first section 12A at a larger force for fixation of the outer cover 12 to the inner cover 12 and at a second section 12B at a smaller force for holding the water repellent filter 36 between the outer and inner covers. In the crimping, the crimping at the first section is completed simultaneously or earlier from the completion of the crimping at the second section.
摘要翻译：用于内燃机排气净化系统的空燃比传感器。传感器具有外盖和内盖12和13，用于将导线16,18和19保护到传感器的检测元件3和加热器5;橡胶密封件2，用于获得盖和导线之间的密封以及用于在保持盖内的空间的空气通气能力的同时在内盖12和外盖13之间获得密封的防水过滤器36。为了接收引线16,18和19，密封件2形成有孔20，孔之间的最小厚度和孔与密封件的外表面之间的最小厚度为1mm以上。进行外盖12的压接，使密封件2在外径的10〜20％的范围内变形。外盖12的压接还在第一部分12A处以较大的力进行，用于将外盖12固定到内盖12，并且在第二部分12B处以较小的力将防水滤清器36固定在外盖和内盖。在卷曲中，第一部分的卷曲在第二部分的卷曲完成的同时或更早地完成。

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