Measuring sensor for determining the oxygen content in gases
    21.
    发明授权
    Measuring sensor for determining the oxygen content in gases 失效
    用于测定气体中氧含量的测量传感器

    公开(公告)号:US4756885A

    公开(公告)日:1988-07-12

    申请号:US852807

    申请日:1986-02-21

    CPC分类号: G01N27/4077

    摘要: A combination of a measuring sensor and protector having a measuring sensor with a housing and having an elongated cup-like protective pipe engaged with the housing. The pipe has a bottom having a convex shape with an inlet opening. The pipe also has at least one outlet opening spaced away from the bottom. A deflector extends inward from the pipe at an acute angle relative to a longitudinal axis of the pipe and away from the bottom so that when gas flows longitudinally within the pipe from the inlet opening, the gas is deflected by the deflector to flow around the deflector to the at least one outlet opening. The bottom also has a boss-like bulging portion projecting outward to form the inlet opening so as to reduce contamination of the measuring element by preventing solid particles in the gas from entering inside the pipe.

    摘要翻译: PCT No.PCT / DE85 / 00229 Sec。 371日期1986年2月21日 102(e)日期1986年2月21日PCT提交1985年7月4日PCT公布。 出版物WO86 / 00709 日期1986年1月30日。测量传感器和保护器的组合,其具有带壳体的测量传感器,并具有与壳体接合的细长的杯状保护管。 管具有具有入口开口的凸形的底部。 管道还具有至少一个与底部间隔开的出口开口。 偏转器相对于管的纵向轴线以锐角从管子向内延伸并且远离底部,使得当气体从入口开口在管道内纵向流动时,气体被偏转器偏转以流过偏转器 至少一个出口开口。 底部还具有向外突出以形成入口开口的凸起状凸出部,以便通过防止气体中的固体颗粒进入管内而减少测量元件的污染。

    Regulation device for the mixture composition of an internal combustion
engine
    22.
    发明授权
    Regulation device for the mixture composition of an internal combustion engine 失效
    用于内燃机的混合物组成的调节装置

    公开(公告)号:US4594984A

    公开(公告)日:1986-06-17

    申请号:US755213

    申请日:1985-07-15

    CPC分类号: F02D41/1475 F02D41/1479

    摘要: A regulating device is proposed for the mixture composition of an internal combustion engine having a signal sensor and having regulating ranges which can be switched over between lambda equals one and the lean range. The lambda-equal-to-one regulation is effected by means of a two-point regulator and the lean regulation is effected either via an altered set-point value of the two-point regulator or with the aid of a steady regulator. The transitions between the two types of regulation take a course dependent on a selectable function, in order to avoid abrupt changes in rpm. A switchover is also made to controlled operation for a brief period at the beginning of each type of regulation.

    摘要翻译: 提出了一种调节装置,用于具有信号传感器的内燃机的混合组成,其具有可在等于1和稀的范围之间切换的调节范围。 通过两点调节器实现λ等于一的调节,并且通过两点调节器的改变的设定值或借助于稳定调节器来实现贫调节。 两种类型的调节之间的转换取决于可选择的功能,以避免rpm的突然变化。 在每种类型的调节开始时,也进行了短时间的控制操作。

    Wide-range temperature operating system for combustion gas oxygen
sensor, and method
    23.
    发明授权
    Wide-range temperature operating system for combustion gas oxygen sensor, and method 失效
    用于燃烧气体氧传感器的宽范围温度操作系统及方法

    公开(公告)号:US4463594A

    公开(公告)日:1984-08-07

    申请号:US377604

    申请日:1982-05-13

    CPC分类号: F02D41/1481

    摘要: To compensate for temperature-dependent shift on the operating characteristics of an oxygen ion conductive sensor which tends to shift the operating characteristics towards the "lean" range (.lambda.>1) at low temperature, and towards the "rich" range (.lambda.

    摘要翻译: 为了补偿氧离子传导传感器的操作特性的温度依赖性变化,其倾向于在低温下将工作特性向“贫”范围(λ> 1)移动,并且朝向“富”范围(λ<1) ),从传感器导出的脉冲被延迟或移位,使得代表从偏移到丰富方向的脉冲的后沿延迟地传输; 依赖于温度,从丰富到精益的转变也延迟传递。 通过具有可变时间延迟的定时电路(9,14)获得延迟,时间延迟由通过感测传感器的a-c电阻导出的温度信号(9a)控制,由高通滤波器分流并整流。 通过将第一定时级(9)延迟脉冲的后沿或缩短脉冲,从而延迟由第二定时电路(14)产生脉冲前沿的脉冲,各个脉冲被逻辑地组合 取决于比较器(18)相对于例如300℃-400℃设定点的温度水平确定的温度。

    Method and apparatus to measure the operating temperature of solid
electrolyte-type gas sensors
    24.
    发明授权
    Method and apparatus to measure the operating temperature of solid electrolyte-type gas sensors 失效
    测量固体电解质型气体传感器工作温度的方法和装置

    公开(公告)号:US4419190A

    公开(公告)日:1983-12-06

    申请号:US357803

    申请日:1982-03-12

    摘要: To provide for temperature measurement of a solid electrolyte polarographic gas composition sensor, an ac signal is superimposed from an ac voltage source (2) on the applied voltage from a voltage source (1) if the sensor is a polarographic sensor, the ac signal being separated from the output by a filter combination (6, 7), the dc output being evaluated as usual, and the ac output being rectified in a rectifier (9) to obtain a measure of the temperature since the ac resistance (R.sub.alt) is highly temperature dependent (see FIG. 3). The ac preferably is about 10% of the applied dc voltage, so that the voltage swing of the ac potential falls well within the linear range of output current with respect to voltage (see FIG. 2). The output from the ac channel (7, 9) to evaluate the temperature signal can be connected to a control loop circuit (10, 11), including a heater (11) to heat the sensor to maintain a uniform temperature thereof.

    摘要翻译: 为了提供固体电解质极谱气体组成传感器的温度测量,如果传感器是极谱传感器,则交流电信号从交流电压源(2)叠加在来自电压源(1)的施加电压上,交流信号为 通过滤波器组合(6,7)从输出分离,直流输出按照常规进行评估,并且交流输出在整流器(9)中整流以获得由于交流电阻(Ralt)高的温度的测量 温度依赖(参见图3)。 交流电压优选为所施加的直流电压的约10%,使得交流电位的电压摆幅相对于电压在输出电流的线性范围内很好地下降(见图2)。 来自用于评估温度信号的交流通道(7,9)的输出可以连接到包括加热器(11)的控制回路电路(10,11),以加热传感器以保持其均匀的温度。