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    Electronic fuel injection system
    2.
    发明授权
    Electronic fuel injection system 失效
    电子燃油喷射系统

    公开(公告)号：US3918417A

    公开(公告)日：1975-11-11

    申请号：US30142272

    申请日：1972-10-27

    Applicant: GEN MOTORS CORP

    Inventor： GAMBILL CHARLES C ,  MCGAVIC JOHN P

    IPC: F02D41/34 ,  F02D41/04 ,  F02D41/32 ,  F02B3/00

    CPC classification number: F02D41/32

    Abstract: A primary control pulse is initiated in synchronization with the operation of an internal combustion engine and is terminated after a time duration Tp which is determined as a preselected function of a primary engine operating parameter. A control voltage is developed across a capacitor having a capacitance C. The capacitor is charged with a charge current Ic in response to the presence of a primary control pulse to increase the control voltage from an initial level Li to a peak level Lp. The capacitor is discharged with a discharge current Id in response to the absence of a primary control pulse to decrease the control voltage from the peak level Lp to a final level Lf. Fuel is applied to the engine in an amount proportional to the time interval established between the departure of the control voltage from the initial level Li and the arrival of the control voltage at the final level Lf. As a result, the total quantity of fuel Q delivered to the engine is defined by the following equation:

    Abstract translation: 主控制脉冲与内燃机的运行同步启动，并在被确定为主发动机运行参数的预选功能的持续时间Tp之后终止。 在具有电容C的电容器上产生控制电压。响应于主控制脉冲的存在，对电容器充电充电电流Ic，以将控制电压从初始电平Li增加到峰值电平Lp。 响应于不存在初级控制脉冲，电容器以放电电流Id放电，以将控制电压从峰值电平Lp降低到最终电平Lf。 燃料以与控制电压离开初始电平Li之间建立的时间间隔和控制电压到达最终电平Lf成比例的量施加到发动机。 结果，发送到发动机的燃料Q的总量由以下等式定义：Q NOTEQUAL T p（1 + Ic / Id）+（Li-Lf）C / Id。 充电电流Ic和放电电流Id中的至少一个被确定为与主发动机工作参数相乘的次级发动机工作参数的预选功能。 将初始水平Li和最终水位Lf中的至少一个确定为与主发动机工作参数相加的二次发动机运转参数的预选功能。

    Fuel supply system for an internal combustion engine providing voltage compensated cranking enrichment
    5.
    发明授权
    Fuel supply system for an internal combustion engine providing voltage compensated cranking enrichment 失效
    用于提供电压补偿起重机的内燃机的燃油供应系统

    公开(公告)号：US3683871A

    公开(公告)日：1972-08-15

    申请号：US3683871D

    申请日：1970-07-17

    Applicant: GEN MOTORS CORP

    Inventor： BARR PAUL N ,  GAMBILL CHARLES C

    IPC: F02D41/06 ,  F02B3/00 ,  F02N17/00

    CPC classification number: F02D41/065

    Abstract: In an electronic fuel injection system, fuel is applied to an internal combustion engine for the duration of individual control pulses developed in synchronization with the engine rotation. During cranking of the engine, additional control pulses are supplied at a frequency which is inversely related to the temperature of the engine and which is also inversely related to the supply voltage of a power source. In a preferred embodiment, the frequency of the additional control pulses is doubled when the supply voltage falls below a minimum acceptable level.

    Abstract translation: 在电子燃料喷射系统中，在与发动机旋转同步产生的单个控制脉冲的持续时间内，向内燃机施加燃料。 在发动机起动期间，以与发动机温度成反比的频率提供额外的控制脉冲，并且也与电源的电源电压成反比。 在优选实施例中，当电源电压低于最小可接受电平时，附加控制脉冲的频率加倍。

    Speed control circuit for split phase motors
    6.
    发明授权
    Speed control circuit for split phase motors 失效
    分相电机的速度控制电路

    公开(公告)号：US3576483A

    公开(公告)日：1971-04-27

    申请号：US3576483D

    申请日：1969-11-25

    Applicant: GEN MOTORS CORP

    Inventor： GAMBILL CHARLES C

    IPC: H02P23/10 ,  H02P5/40 ,  H02P1/44

    CPC classification number: H02P23/10

    Abstract: A speed control circuit for split phase motors of the type having the series combination of a phase winding and an electrical impedance element connected in parallel with the running winding. One diagonal of a resistive bridge circuit having at least one variable resistor is connected across a control circuit resistor, connected in series with the motor across a source of alternating current potential, and the baseemitter electrodes of a transistor are connected across the other diagonal of the bridge circuit. With the bridge circuit unbalanced with a change of resistance value of the variable resistor in a direction to produce emitter-base current flow through the transistor, this device conducts through the emittercollector electrodes to complete an energizing circuit for the gate-cathode electrodes of a silicon controlled rectifier. The resulting gate-cathode current flow triggers this device conductive through the anode-cathode electrodes thereof which are connected in series with the heater element of a thermal relay across the control resistor to operate the normally open contacts of the relay to the closed condition to complete a low resistance circuit in shunt with the phase winding of the motor.

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