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40 条记录 (耗时 0.026 秒)

    Oxygen sensor
    31.
    发明授权
    Oxygen sensor 失效
    氧传感器

    公开(公告)号：US5609825A

    公开(公告)日：1997-03-11

    申请号：US468761

    申请日：1995-06-06

    申请人： Tomoji Fukaya ,  Naoto Miwa

    发明人： Tomoji Fukaya ,  Naoto Miwa

    IPC分类号： G01N27/409 ,  G01N27/406 ,  G01N27/26

    CPC分类号： G01N27/4067

    摘要： To provide an oxygen sensor having a heater unit without being broken by vibration impact of a vehicle, the oxygen sensor includes a cylindrical oxygen detecting element with a closed bottom and a heater unit installed in an inside of the oxygen detecting element. The heater unit includes insulators, the heat generating body helically wound a surface thereof and lead wires. In the insulators, concave portions reaching lead holes are disposed. Lead wires are put through the lead holes from an outer circumferential surface. In the concave portions, the heat generating body and the lead wires are connected. The outer circumference of a winding portion of the heat generating body is preferably formed at a position more inwardly than the outer circumferential surface of the adjacent insulator.

    摘要翻译： 为了提供具有加热器单元的氧传感器，不会被车辆的振动冲击破坏，氧传感器包括具有封闭底部的圆柱形氧气检测元件和安装在氧气检测元件内部的加热器单元。 加热器单元包括绝缘体，发热体螺旋地缠绕其表面和引线。 在绝缘体中，设置到达引线孔的凹部。 引线从外周面穿过引线孔。 在凹部中连接发热体和引线。 发热体的卷绕部的外周优选形成在比相邻的绝缘体的外周面更靠内侧的位置。

    Positive ceramic semiconductor device
    32.
    发明授权
    Positive ceramic semiconductor device 失效
    正陶瓷半导体器件

    公开(公告)号：US4831432A

    公开(公告)日：1989-05-16

    申请号：US19972

    申请日：1987-02-27

    申请人： Makoto Hori ,  Itsuhei Ogata ,  Hitoshi Niwa ,  Naoto Miwa

    发明人： Makoto Hori ,  Itsuhei Ogata ,  Hitoshi Niwa ,  Naoto Miwa

    IPC分类号： H01C1/14

    CPC分类号： H01C1/1406

    摘要： A positive ceramic semiconductor device having positive temperature coefficient of resistance comprises a pair of electrodes provided on a ceramic semiconductor substrate. One of the paired electrodes which is to serve as the positive pole is basically constituted by at least an electrically conductive layer of silver-palladium series containing silver and palladium at a predetermined ratio. For preventing a localized current concentration from occurring in the current conducting state, improvement is made as the structure of the positive pole electrode ormed of the electrically conductive material of silver-palladium series and/or the structure of the negative pole electrode. Silver-migration phenomenon on the positive ceramic semiconductor substrate as well as degradation of the mechanical strength thereof is positively prevented.

    摘要翻译： 具有正温度系数电阻的正陶瓷半导体器件包括设置在陶瓷半导体衬底上的一对电极。 用作正极的成对电极中的一个基本上由至少包含以规定比例含有银和钯的银 - 钯系列的导电层构成。 为了防止在电流导通状态下发生局部电流集中，作为负极电极的结构或者银 - 钯系的导电材料的结构和/或负极电极的结构的改进。 积极地防止正极陶瓷半导体衬底上的银迁移现象以及其机械强度的劣化。

    Self-temperature controlling type heating device
    33.
    发明授权
    Self-temperature controlling type heating device 失效
    自控式加热装置

    公开(公告)号：US4716279A

    公开(公告)日：1987-12-29

    申请号：US771053

    申请日：1985-08-30

    申请人： Makoto Hori ,  Toshiatsu Nagaya ,  Hirokatsu Mukai ,  Hitoshi Niwa ,  Naoto Miwa

    发明人： Makoto Hori ,  Toshiatsu Nagaya ,  Hirokatsu Mukai ,  Hitoshi Niwa ,  Naoto Miwa

    IPC分类号： H01C7/02 ,  H05B3/00 ,  H05B3/14 ,  H05B3/22 ,  H05B1/02

    CPC分类号： H05B3/22 ,  H05B3/141

    摘要： A self-temperature controlling type heating device comprises a positive temperature coefficient ceramic resistor having a thin layer portion, a first electrode provided on one face of the thin layer portion, a second electrode provided on the other face of the thin layer portion opposite to the first electrode, and at least one third electrode provided on the surface of the PTC ceramic resistor in spaced relation to the first electrode. An electric current is allowed to flow between the first and second electrodes to form a heating element, and an electric resistance value between the first and third electrodes is detected to thereby make a temperature control. Thus, a high output is obtained at a low voltage and the control temperature is freely varied.

    摘要翻译： 一种自温度控制型加热装置，包括具有薄层部分的正温度系数陶瓷电阻器，设置在薄层部分的一个面上的第一电极，设置在薄层部分相对的薄层部分的另一个面上的第二电极 第一电极和至少一个第三电极，其设置在PTC陶瓷电阻器的与第一电极间隔开的表面上。 允许电流在第一和第二电极之间流动以形成加热元件，并且检测第一和第三电极之间的电阻值，从而进行温度控制。 因此，在低电压下获得高输出，并且控制温度可自由变化。

    Oxygen concentration sensing apparatus
    38.
    发明授权
    Oxygen concentration sensing apparatus 失效
    氧气浓度检测装置

    公开(公告)号：US4313810A

    公开(公告)日：1982-02-02

    申请号：US53181

    申请日：1979-06-27

    申请人： Hitoshi Niwa ,  Naoto Miwa ,  Masatoshi Suzuki ,  Masami Ouki

    发明人： Hitoshi Niwa ,  Naoto Miwa ,  Masatoshi Suzuki ,  Masami Ouki

    IPC分类号： G01N27/409 ,  B01D53/86 ,  B01D53/94 ,  F23N5/00 ,  G01N27/406 ,  G01N27/407 ,  G01N27/413 ,  G01N27/58

    CPC分类号： G01N27/407 ,  F23N5/006 ,  G01N27/4065

    摘要： An oxygen concentration sensing apparatus in which a block of an oxygen-ion conductive solid electrolyte is interposed between a first electrode and a second electrode disposed opposite to each other. The first electrode is made of a catalytic metal and is exposed at a portion thereof on a surface of the solid electrolyte block, and an electrical insulating heat-resistive layer having a plurality of communication pores covers the exposed portion of the first electrode. The second electrode is porous and made of a catalytic metal. The solid electrolyte is wholly exposed to a stream of gases containing oxygen whose concentration is to be measured, and during measurement, a current source supplies continuously an electric current in a direction from the first electrode toward the second electrode. When the partial pressure of oxygen gas produced at the first electrode and existing in the vicinity thereof exceeds a predetermined value, the excess pressure portion of oxygen gas is discharged into the stream of gases through the communication pores of the heat-resistive layer thereby maintaining substantially constant the partial pressure of oxygen gas in the vicinity of the first electrode. An electromotive force representing the ratio between the partial pressure of oxygen around the first electrode and that in the stream of gases containing oxygen is measured to determine the concentration of oxygen contained in the gases.

    摘要翻译： 一种氧浓度检测装置，其中氧离子传导性固体电解质块插入在彼此相对设置的第一电极和第二电极之间。 第一电极由催化金属制成，并在其一部分暴露在固体电解质块的表面上，具有多个连通孔的电绝缘耐热层覆盖第一电极的暴露部分。 第二电极是多孔的并由催化金属制成。 固体电解质完全暴露于含有浓度要测量的氧气的气流中，并且在测量期间，电流源在从第一电极朝向第二电极的方向上连续供给电流。 当在第一电极处产生的并且存在于其附近的氧气的分压超过预定值时，氧气的过量压力部分通过耐热层的连通孔排放到气流中，从而基本上保持 使第一电极附近的氧气的分压恒定。 测量表示第一电极周围的氧分压与含氧气体流之间的比率的电动势，以确定气体中所含的氧浓度。

    Oxygen concentration sensing apparatus
    39.
    发明授权
    Oxygen concentration sensing apparatus 失效
    氧气浓度检测装置

    公开(公告)号：US4220517A

    公开(公告)日：1980-09-02

    申请号：US24773

    申请日：1979-03-28

    申请人： Hitoshi Niwa ,  Naoto Miwa ,  Masatoshi Suzuki ,  Masami Ouki

    发明人： Hitoshi Niwa ,  Naoto Miwa ,  Masatoshi Suzuki ,  Masami Ouki

    IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N27/58

    CPC分类号： G01N27/4075

    摘要： In an oxygen concentration sensing apparatus comprising a solid, oxygen ion conductive, electrolyte and intervening between two electrodes to generate across the two electrodes a potential difference due to a difference in oxygen concentrations at the boundaries between the two electrodes and the solid electrolyte, one of the two electrodes is made of a metal performing catalytic action, one end portion of the one electrode is embedded in the solid electrolyte to be fixed thereby, the other end portion of the one electrode projects outwardly of the solid electrolyte, a portion of the one electrode contacting with an outer surface of the solid electrolyte is hermetically sealed with a nonconductive layer of a heat-resistant material, and the other electrode is made of a porous metal performing catalytic action and is disposed on the outer surface of the solid electrolyte but preventing the other electrode from being in contact with the one electrode.Further, the oxygen concentration sensing apparatus may be provided with an electric circuit for making an electric current flow intermittently from the one electrode through the solid electrolyte to the other electrode thereby to maintain the oxygen concentration at the boundary between the one electrode and the solid electrolyte at a constant level.

    摘要翻译： 在包含固体，氧离子导电，电解质和介于两个电极之间的氧浓度感测装置中，在两个电极之间产生由于两个电极和固体电解质之间的边界处的氧浓度差异而产生的电位差， 两个电极由执行催化作用的金属制成，一个电极的一个端部嵌入固体电解质中以固定，一个电极的另一个端部突出于固体电解质的外部，一部分 与固体电解质的外表面接触的电极用耐热材料的非导电层气密密封，另一个电极由执行催化作用的多孔金属制成，并且设置在固体电解质的外表面上，但是防止 另一个电极与一个电极接触。 此外，氧浓度检测装置可以设置有用于使电流从一个电极通过固体电解质间歇地流动到另一个电极的电路，从而保持在一个电极和固体电解质之间的边界处的氧浓度 在一个恒定的水平。

    High temperature thermistor
    40.
    发明授权
    High temperature thermistor 失效
    高温热敏电阻

    公开(公告)号：US3958209A

    公开(公告)日：1976-05-18

    申请号：US547095

    申请日：1975-02-04

    申请人： Kazuya Soda ,  Naoto Miwa

    发明人： Kazuya Soda ,  Naoto Miwa

    IPC分类号： C04B35/12 ,  C04B35/111 ,  H01C7/04

    CPC分类号： C04B35/111 ,  H01C7/043

    摘要： Thermistors having a resistor which comprises aluminum oxide (Al.sub.2 O.sub.3) and chromium oxide (Cr.sub.2 O.sub.3) are excellent in heat resistance even when they are used at a high temperature of 400.degree. - 1,100.degree.C. Proportion of Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3 is preferably 11 mol % of Cr.sub.2 O.sub.3 and 89 mol % - 6 mol % of Al.sub.2 O.sub.3. Furthermore, calcium oxide and silicon oxide may be added to accelerate the sintering of the Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3. In addition, manganese oxide or titamium oxide may be contained in the resistor for more accurate control of temperature.