Electronic ignition system for internal combustion engine
    1.
    发明授权
    Electronic ignition system for internal combustion engine 失效
    内燃机电子点火系统

    公开(公告)号:US3942491A

    公开(公告)日:1976-03-09

    申请号:US431540

    申请日:1974-01-07

    IPC分类号: F02P5/15 F02P5/04

    CPC分类号: F02P5/15 Y02T10/46

    摘要: The crankshaft bears a mark which passes in front of a sensor. When the crankshaft is rotated as the engine turns, the sensor delivers a squarewave signal when this mark passes in front of it. The mark and the sensor are positioned with respect to each other such that when the end of the mark passes in front of the sensor the piston is in a given low position and moves up toward the spark plug and such that when the other end of the mark passes in front of the sensor, the piston has substantially reached its maximum stroke within the cylinder in the vicinity of the spark plug, i.e. when it produces the maximum compression of the combustion gases located in the cylinder. The output of the sensor is connected to the input of a reset circuit of a counter and to the input of a count start and stop circuit of this counter and also to the input of a transfer control circuit. The count input of the counter is connected to the output of a pulse generator, such as a clock, for example, delivering pulses at a given constant frequency. The output of the counter is connected to the input of a buffer memory whose control input is connected to the output of the transfer control circuit. The output of the buffer memory is connected to the input of a permanent memory whose function will be explained further below. The output of the permanent memory is connected to a first input of a binary comparator whose other input is connected to the output of the counter. The output of the binary comparator is connected to the input of the ignition system, i.e. the spark plug. This connection, shown in a dotted line, can be achieved, for example, by an amplifier or any other electronic system making it possible, from an electric pulse delivered by a binary comparator, to produce between the electrodes of the spark plug a spark with a sufficient energy to produce the combustion of the combustion gases contained in the cylinder.

    摘要翻译: 曲轴在传感器前方有一个标记。 当发动机转动时曲轴旋转时,当该标记在其前方通过时,传感器传递方波信号。 标记和传感器相对于彼此定位,使得当标记的端部通过传感器前方时,活塞处于给定的低位置并向着火花塞向上移动,并且当另一端 标记在传感器前方通过,活塞已经在火花塞附近的气缸内基本达到其最大行程,即当其产生位于气缸中的燃烧气体的最大压缩时。 传感器的输出连接到计数器的复位电路的输入端以及该计数器的计数启动和停止电路的输入端以及传输控制电路的输入端。 计数器的计数输入连接到诸如时钟的脉冲发生器的输出,例如以给定的恒定频率递送脉冲。 计数器的输出连接到缓冲存储器的输入端,其缓冲存储器的控制输入连接到传输控制电路的输出端。 缓冲存储器的输出连接到永久存储器的输入,其功能将在下面进一步说明。 永久存储器的输出连接到二进制比较器的第一输入,其另一个输入连接到计数器的输出端。 二进制比较器的输出端连接到点火系统的输入端,即火花塞。 虚线所示的这种连接可以例如由放大器或任何其他电子系统实现,使得可以从二进制比较器传送的电脉冲在火花塞的电极之间产生火花与火花塞 足够的能量来产生包含在气缸中的燃烧气体的燃烧。

    Process for the control of the position of the focus of an X-ray tube
and control apparatus performing said process
    2.
    发明授权
    Process for the control of the position of the focus of an X-ray tube and control apparatus performing said process 失效
    用于控制执行所述处理的X射线管和控制装置的焦点的位置的处理

    公开(公告)号:US4675892A

    公开(公告)日:1987-06-23

    申请号:US735358

    申请日:1985-05-17

    CPC分类号: H05G1/52 H01J35/24 H05G1/26

    摘要: The invention relates to a process for the controlling of the position of the focus of an X-ray tube, a applicable to the monitoring of X-ray equipment equipped with X-ray tubes and to the installation of the latter in shields. The invention also relates to a control apparatus for performing the above process. According to the process of the invention, the image of the focus of an X-ray tube is produced on two X-radiation sensitive, contiguous detector means. Each of the detector means supplied an output signal, whose amplitude is a function of the distribution of said image of said detector means. The output signals are applied to a comparison means, which supplies a difference signal linked with the position of the focus along a first given axis.

    摘要翻译: 本发明涉及一种用于控制X射线管的焦点位置的方法,该方法适用于配备有X射线管的X射线设备的监视以及将其安装在屏蔽中。 本发明还涉及一种用于执行上述过程的控制装置。 根据本发明的方法,X射线管的焦点的图像在两个X射线敏感的连续检测器装置上产生。 每个检测器装置提供输出信号,其幅度是所述检测器装置的所述图像分布的函数。 输出信号被施加到比较装置,该比较装置沿着第一给定轴提供与焦点的位置相关联的差分信号。