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2. 发明授权

US4375205A Glow plug control circuit 失效
标题翻译：辉光插头控制电路
公开(公告)号：US4375205A
公开(公告)日：1983-03-01
申请号：US165730
申请日：1980-07-03
申请人： Samuel J. Green
发明人： Samuel J. Green
IPC分类号： F02B3/06 , F02P11/02 , F02P19/02 , F02N17/00
CPC分类号： F02P19/02 , F02B3/06
摘要： Apparatus for applying power to at least two heater filaments of two glow plugs in a diesel engine, or to a heater of one glow plug and a ballast load having substantially the same maximum rated voltage as the filament, is disclosed. The power source has a supply voltage greater than the maximum rated voltage of the filament and sufficiently high to cause an overheating temperature capable of burning out the filament under continuous operation. A switch is operable in a first position to prevent the application of the supply voltage to the apparatus, operable in a second position to apply the supply voltage to the apparatus, and operable in a third position to maintain the condition of the second position and to apply the supply voltage to the apparatus and to a starter for the engine. The apparatus comprises means for applying the full supply voltage to each of the filaments by turning the switch from the first to the second position, and means operable, after a preheat time period which varies as an inverse function of available supply voltage and equals the time required to raise a filament from ambient temperature to a higher operating temperature sufficient for diesel engine starting, to reduce the voltage applied to the filaments by the first-named means and to maintain the operating temperature thereof for a prestart time period. The apparatus also includes means operable, after turning the switch from the second to the third position, to continue application of the reduced voltage to the filaments for an afterglow time period predetermined by the amount of time required for smooth engine idling and to minimize engine noise and white smoke emission.
摘要翻译：公开了一种用于向柴油发动机中的两个电热塞的至少两个加热器丝线或者一个电热塞的加热器和具有与灯丝具有基本相同的最大额定电压的镇流器负载施加功率的装置。电源的电源电压大于灯丝的最大额定电压，并且足够高，导致连续运行时能够熄灭灯丝的过热温度。开关可操作在第一位置，以防止施加电源电压到设备，在第二位置可操作以将电源电压施加到设备，并可操作在第三位置以保持第二位置的状态，并且将电源电压施加到发动机的装置和起动器。该装置包括用于通过将开关从第一位置转动到第二位置而将全电源电压施加到每个灯丝的装置，以及可在可用电源电压的反函数变化等于时间的预热时间段之后操作的装置需要将灯丝从环境温度升高到足以用于柴油发动机起动的较高工作温度，以通过第一名称的装置降低施加到灯丝的电压并将其工作温度保持在预先设定的时间段。该装置还包括在将开关从第二位置转移到第三位置之后可操作的装置，以继续将减小的电压施加到长丝上以保持平滑的发动机怠速所需的时间量并使发动机噪声最小化的余辉时间和白烟排放。

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