公开(公告)号：US4167169A

公开(公告)日：1979-09-11

申请号：US766190

申请日：1977-02-07

申请人： Jack M. White

发明人： Jack M. White

IPC分类号： F02D41/34 ,  F02D3/00 ,  F02D41/32 ,  F02M19/01 ,  F02M69/18 ,  F02M69/26 ,  F02D1/04 ,  F02D1/06

CPC分类号： F02M69/26 ,  F02M69/18

摘要： A fuel flow control system which, in response to the true mass of air entering the throttle body of an engine, provides a regulated flow of fuel to the throttle body, thereby delivering the optimum mass fuel-air ratio to the engine and maintaining idealized engine performance. The air flow rate drawn through the throttle body by the engine is monitored along with air temperature and pressure, and an electronic control circuit computes the true mass of air and the ideal fuel flow rate which will produce the optimum mass fuel-air ratio. The circuit generates a command signal to a novel fuel flow regulating assembly which adjusts the fuel flow in response to the command signal. The regulating assembly includes a control valve positionable in response to the command signal and a pressure differential mechanism movably responsive to the control valve position. A fuel flow metering valve in turn is positioned by the pressure differential mechanism. A fuel flowmeter is included to measure the actual fuel flow rate delivered to the throttle body and a feedback signal generated from the flowmeter to the control circuit further aids in accurately positioning the metering valve and thereby insures correct fuel delivery to the engine.

摘要翻译： 一种燃料流量控制系统，其响应于进入发动机的节气门体的空气的真实质量向节气门体提供调节的燃料流，从而向发动机提供最佳质量燃料空气比并维持理想的发动机 性能。 通过发动机通过节气门体抽取的空气流量与空气温度和压力一起被监测，并且电子控制电路计算真实的空气质量和将产生最佳质量空气 - 空气比的理想燃料流量。 该电路产生一个命令信号给一个新的燃料流量调节组件，该装置根据命令信号来调节燃料流量。 调节组件包括可响应于命令信号定位的控制阀和可移动地响应于控制阀位置的压差机构。 燃料流量计量阀依次由压差机构定位。 包括燃料流量计以测量传送到节气门体的实际燃料流量，并且从流量计产生到控制回路的反馈信号进一步有助于精确地定位计量阀，从而确保向发动机输送正确的燃料。

公开(公告)号：US4142497A

公开(公告)日：1979-03-06

申请号：US629351

申请日：1975-11-06

申请人： E. David Long

发明人： E. David Long

IPC分类号： F02D21/08 ,  F02D41/32 ,  F02M37/08 ,  F02M51/00 ,  F02M51/06 ,  F02M51/08 ,  F02M55/04 ,  F02M61/16 ,  F02M69/04 ,  F04B9/06 ,  F04B11/00 ,  F04B17/04 ,  F04B53/10 ,  F02M59/16

CPC分类号： F02M37/08 ,  F02D21/08 ,  F02D41/32 ,  F02M51/005 ,  F02M51/0639 ,  F02M55/04 ,  F02M61/165 ,  F02M69/04 ,  F04B11/0033 ,  F04B17/046 ,  F04B53/1035 ,  F04B9/06 ,  F02M2051/08

摘要： A fuel injection system for an internal combustion engine employs a relatively low pressure pump to provide fuel to injectors located at the engine cylinders. A booster device for maintaining the fluid pressure constant, at a substantially higher level, is connected in series with the line between the pump and the injector and includes one way valves at its inlet and outlet. The booster employs a chamber connected to the fuel line and pressurized by a piston which acts to contract the chamber volume under the force of the coil spring. The piston is cocked against the spring at regular intervals to renew the original volume of the chamber by an arm driven from the engine crankshaft. Sealed volume converters having flexible diaphragm walls are disposed adjacent to the inlet and outlet of the booster device and in the fluid conduit adjacent the injectors to obviate sharp drops in the fluid pressure in the fuel line when the injectors actuate.

摘要翻译： 用于内燃机的燃料喷射系统采用相对低压的泵向位于发动机气缸的喷射器提供燃料。 用于将流体压力保持恒定的升压装置以相当高的水平与泵和喷射器之间的管线串联连接，并且在其入口和出口处包括单向阀。 增压器采用连接到燃油管路的腔室，并通过活塞加压，该活塞用于在螺旋弹簧的力作用下收缩室体积。 活塞以规则的间隔对着弹簧，通过从发动机曲轴驱动的臂来更新腔室的原始体积。 具有柔性隔膜壁的密封体积转换器设置在增压装置的入口和出口附近以及与喷射器相邻的流体导管中，以避免在喷射器致动时在燃料管线中的流体压力的急剧下降。

公开(公告)号：US4134368A

公开(公告)日：1979-01-16

申请号：US803606

申请日：1977-06-06

申请人： Dawson N. Hadley

发明人： Dawson N. Hadley

IPC分类号： F02D41/32 ,  F02B3/00

CPC分类号： F02D41/32

摘要： A plurality of sensors generate signals representing engine parameters indicative of the engine fuel requirement. These signals are all applied to a single function generator to form a composite signal that is a nonlinear function of the engine fuel requirement. One of the sensors responds to absolute intake manifold pressure; responsive to this sensor, operation is inhibited, while the absolute intake manifold pressure is below a predetermined value representative of engine deceleration. An engine starter switch generates a trigger pulse to actuate an overriding multivibrator that overrides normal operation as the engine is started. One of the sensors also responds to engine coolant temperature; responsive to this sensor, the actuation duration of the overriding multivibrator is controlled in reverse relation to the coolant temperature. A manual switch, which generates a trigger pulse responsive to closing, is coupled to the overriding multivibrator to with actuate it responsive to each trigger pulse generated by the switch.

摘要翻译： 多个传感器产生表示发动机燃料要求的发动机参数的信号。 这些信号都被应用于单个函数发生器以形成作为发动机燃料需求的非线性函数的复合信号。 其中一个传感器响应绝对进气歧管压力; 响应于该传感器，禁止操作，而绝对进气歧管压力低于表示发动机减速度的预定值。 发动机起动开关产生一个触发脉冲，以启动一个超控多谐振荡器，当发动机起动时，它将覆盖正常运行。 其中一个传感器也响应发动机冷却液温度; 响应于该传感器，超控多谐振荡器的致动持续时间被控制为与冷却剂温度相反。 响应于闭合产生触发脉冲的手动开关耦合到超控多谐振荡器，以响应于由开关产生的每个触发脉冲来致动它。

公开(公告)号：US4112477A

公开(公告)日：1978-09-05

申请号：US803744

申请日：1977-06-06

申请人： Walter M. Sherwin

发明人： Walter M. Sherwin

IPC分类号： F02D41/20 ,  F02D41/32 ,  H01F7/18 ,  H01H47/32 ,  H03K3/57

CPC分类号： H01H47/32 ,  F02D41/20 ,  F02D41/32 ,  H01F7/1816 ,  H03K3/57 ,  F02D2041/2006 ,  F02D2041/2013 ,  F02D2041/2017 ,  F02D2041/2075

摘要： A circuit for energizing a fuel injector valve coil in response to a fuel injection pulse including a storage capacitor which is charged from a relatively high voltage source and which is discharged through the fuel injector valve coil through a controlled rectifier gated conductive upon the initiation of a fuel injection pulse signal. The charging circuit for the capacitor is disabled upon initiation of capacitor discharge for a time period at least greater than the time for the capacitor discharge current to decrease to a value to effect commutation of the controlled rectifier after which capacitor charging is reinitiated. A holding circuit is provided for holding the fuel injector valve coil energized for the duration of the fuel injection pulse signal.

摘要翻译： 一种用于响应于燃料喷射脉冲激励燃料喷射阀线圈的电路，该燃料喷射脉冲包括从相对高的电压源充电的储存电容器，并且其在开始时通过可控整流器门控导体通过燃料喷射器阀线圈排出 燃油喷射脉冲信号。 电容器的充电电路在电容器放电开始至少大于电容器放电电流的时间减少到可控整流器的重新变换的值的时间段被禁用，在此时间之后电容器充电被重新启动。 提供保持电路用于在燃料喷射脉冲信号的持续时间内保持燃料喷射器阀线圈通电。

公开(公告)号：US4096830A

公开(公告)日：1978-06-27

申请号：US629349

申请日：1975-11-06

申请人： E. David Long

发明人： E. David Long

IPC分类号： F02D21/08 ,  F02D41/32 ,  F02M37/08 ,  F02M51/00 ,  F02M51/06 ,  F02M51/08 ,  F02M55/04 ,  F02M61/16 ,  F02M69/04 ,  F04B9/06 ,  F04B11/00 ,  F04B17/04 ,  F04B53/10 ,  F02B3/00

CPC分类号： F02M51/0639 ,  F02D21/08 ,  F02D41/32 ,  F02M37/08 ,  F02M51/005 ,  F02M55/04 ,  F02M61/165 ,  F02M69/04 ,  F04B11/0033 ,  F04B17/046 ,  F04B53/1035 ,  F04B9/06 ,  F02M2051/08

摘要： A control system for a positive displacement, electrically actuated fuel pump receives one trigger pulse per engine cycle during normal operating conditions and a plurality of pulses per cycle during starting conditions from a computer circuit forming part of a fuel injection system. A control circuit generates one driving pulse for the fuel pump for each trigger pulse as long as the period between the pulses remains sufficient for the pump to complete its cycle and deletes control pulses to the pump when the engine speed is excessively high. A variable displacement electric pump is controlled to provide the engine with a fuel flow proportional to its operating rate by a variable on-time switching system controlled by an engine speed sensor and/or load sensor.

摘要翻译： 用于正位移电致动燃料泵的控制系统在正常操作条件期间每个发动机循环接收一个触发脉冲，并且在起动条件期间从形成燃料喷射系统的一部分的计算机电路接收多个脉冲。 控制电路为每个触发脉冲产生用于燃料泵的一个驱动脉冲，只要这些脉冲之间的周期保持足以使泵完成其循环，并且当发动机转速过高时，将其去除对泵的控制脉冲。 可变排量电动泵被控制以通过由发动机速度传感器和/或负载传感器控制的可变接通时间切换系统为发动机提供与其运行速率成比例的燃料流量。

公开(公告)号：US4058709A

公开(公告)日：1977-11-15

申请号：US629443

申请日：1975-11-06

申请人： E. David Long

发明人： E. David Long

IPC分类号： F02D21/08 ,  F02D41/32 ,  F02M37/08 ,  F02M51/00 ,  F02M51/06 ,  F02M51/08 ,  F02M55/04 ,  F02M61/16 ,  F02M69/04 ,  F04B9/06 ,  F04B11/00 ,  F04B17/04 ,  F04B53/10 ,  G06G7/66

CPC分类号： F04B53/1035 ,  F02D21/08 ,  F02D41/32 ,  F02M37/08 ,  F02M51/005 ,  F02M51/0639 ,  F02M55/04 ,  F02M61/165 ,  F02M69/04 ,  F04B11/0033 ,  F04B17/046 ,  F04B9/06 ,  F02M2051/08

摘要： A fuel injection system for multi cylinder engine employs a plurality of separate computing circuits for generating variable width control pulses to fuel injectors. Each channel actuates at least one fuel injector during more than 50% of an engine cycle. To derive the start times for these four pulses, a counter is advanced in timed relation to the operation of the engine by pulses from the ignition primary circuit. To control the phase of the firing pulses relative to the cycle time of the engine the counter is reset once each engine cycle by a pulse derived from one of the spark plug leads.

摘要翻译： 用于多气缸发动机的燃料喷射系统采用多个单独的计算电路，用于向燃料喷射器产生可变宽度控制脉冲。 在大约50％的发动机循环中，每个通道致动至少一个燃料喷射器。 为了导出这四个脉冲的起始时间，计时器以与点火一次回路的脉冲相对于发动机运转的定时关系提前。 为了控制相对于发动机的循环时间的点火脉冲的相位，每个发动机循环一次，通过从火花塞引线之一导出的脉冲来重置计数器。

公开(公告)号：US4048964A

公开(公告)日：1977-09-20

申请号：US599243

申请日：1975-07-24

申请人： William Ronald Kissel

发明人： William Ronald Kissel

IPC分类号： F02D41/34 ,  F02D41/04 ,  F02D41/14 ,  F02D41/18 ,  F02D41/32 ,  F02D43/00 ,  F02M37/08 ,  F02B3/00 ,  F02M39/00

CPC分类号： F02D41/185 ,  F02D43/00 ,  Y10T137/2529

摘要： A closed loop, electronically controlled and regulated fuel metering system for operating an internal combustion engine in accordance with a predetermined mass fuel-air ratio scheduled in the controller for different engine operating conditions. Linear air flow and fuel flow measuring devices and transducers responsive to selected ambient fluid and engine operating parameters develop electrical signals, which are related to the air flow rate and fuel flow rate and are modified in accordance with the sensed ambient parameters and a programmed signal from the scheduler representing the fuel-air ratio according to which it is desired to operate the engine over its range of operation. The modified fuel and air signals are electrically combined to balance the controller which operates a fuel metering or supply device to deliver a quantum of fuel precisely in accordance with the desired mass fuel-air ratio scheduled in the controller for said different engine operating conditions over the entire range of engine operation and ambient fluid parameter variations.

摘要翻译： 一种闭环，电子控制和调节的燃料计量系统，用于根据针对不同发动机运行条件在控制器中调度的预定质量燃料 - 空气比来操作内燃机。 响应于所选择的环境流体和发动机操作参数的线性气流和燃料流量测量装置和换能器产生与空气流速和燃料流量相关的电信号，并且根据所感测的环境参数和来自 调度器表示在其操作范围内期望操作发动机的燃料 - 空气比。 改进的燃料和空气信号被电气组合以平衡操作燃料计量或供应装置的控制器，以根据在控制器中为所述不同发动机操作条件调度的所需质量燃料 - 空气比精确地输送量子 整个发动机运行范围和环境流体参数变化。

公开(公告)号：US4046129A

公开(公告)日：1977-09-06

申请号：US667296

申请日：1976-03-16

申请人： Erhard Bigalke ,  Jurgen Wolf ,  Gunther Schmelzer

发明人： Erhard Bigalke ,  Jurgen Wolf ,  Gunther Schmelzer

IPC分类号： F02D41/04 ,  F02D41/06 ,  F02D41/08 ,  F02D41/32 ,  F02D1/04

CPC分类号： F02D41/32 ,  F02D41/045 ,  F02D41/065 ,  F02D41/08 ,  F02D41/083

摘要： The operation of an internal combustion engine is regulated by an electronic regulation circuit which utilizes suction pipe pressure to modulate the width of a pulsed signal and to vary the amplitude of a sawtooth wave signal in accordance with the duration of said pulsed signal so that the fuel injection to the engine may be controlled as desired under all operating conditions. The regulation circuitry includes apparatus for modifying the slope of the time versus pressure characteristic of the suction pipe transducer to account for the differences between full load and no load torque of the engine. This is accomplished byvarying the amplitude of the sawtooth waveforms by shunting a portion of the charging current to the sawtooth generator in accordance with the load conditions on the engine.

摘要翻译： 内燃机的操作由电子调节电路调节，该电子调节电路利用吸管压力来调制脉冲信号的宽度，并根据所述脉冲信号的持续时间来改变锯齿波信号的幅度，使得燃料 可以在所有操作条件下根据需要控制对发动机的喷射。 调节电路包括用于改变吸入管换能器的时间与压力特性的斜率以解决发动机的满载和无负载扭矩之间的差异的装置。 这通过根据发动机上的负载条件将一部分充电电流分流到锯齿波发生器来改变锯齿波形的幅度来实现。

公开(公告)号：US3971348A

公开(公告)日：1976-07-27

申请号：US570889

申请日：1975-04-23

申请人： Bruce A. Scofield

发明人： Bruce A. Scofield

IPC分类号： F02D41/32 ,  F02D41/36 ,  F02B3/00

CPC分类号： F02D41/32 ,  F02D41/365

摘要： Computer means for sequential fuel injection including coupling means for applying manifold pressure and speed signals to control fuel injection time in accordance with the product of the signals, at least one of the coupling means including conditioning means having a predetermined non-linear characteristic. In one embodiment, conditioning means having non-linear characteristics are included in both the pressure and speed signal coupling means and each comprises operational amplifier and diode blocking means operative to provide two break point, three slope characteristics. In another, the conditioning means is included in the pressure signal coupling means and a biasing circuit responds to the speed signal to bias the fuel injection time.This invention relates to computer means for sequential fuel injection and more particularly to computer means operative to provide characteristics closely matching the requirements of a particular engine, to obtain optimum injection of fuel under all operating conditions with a high degree of accuracy.

摘要翻译： 用于顺序燃料喷射的计算机装置，包括用于根据所述信号的乘积施加歧管压力和速度信号以控制燃料喷射时间的耦合装置，所述耦合装置中的至少一个包括具有预定非线性特性的调节装置。 在一个实施例中，具有非线性特征的调节装置包括在压力和速度信号耦合装置中，并且每个包括运算放大器和二极管阻塞装置，其可操作以提供两个断点，三个斜率特性。 另一方面，调节装置包括在压力信号耦合装置中，偏置电路响应于速度信号以偏置燃料喷射时间。

公开(公告)号：US3949713A

公开(公告)日：1976-04-13

申请号：US435211

申请日：1974-01-21

申请人： Jean Pierre Rivere

发明人： Jean Pierre Rivere

IPC分类号： F02D41/34 ,  F02D41/32 ,  F02M51/00 ,  F02M51/08 ,  F02M59/36 ,  F02B3/00

CPC分类号： F02M51/00 ,  F02M59/366

摘要： An electronic fuel injection system for an internal combustion engine wherein the amount of fuel injected is metered according to variations in the injection pressure. Mechanical injectors having a preset opening pressure are fed from a distribution chamber which, in turn, is fed by a fuel circuit pressurized by by an electronically controlled fuel supply flow. The fuel supply flow is the difference between the flow through an inlet injector receiving fuel under pressure and that through an outlet injector regulating the return flow of fuel to the reservoir, these injectors being of the continuous flow electromagnetic type. The fuel supply is frequency controlled by a computer and regulated by a servo loop to assure a constant richness. The preferred embodiment is particularly adaptable to a low priced electronic fuel injection system using mechanical devices whose precision is relatively unimportant.

摘要翻译： 一种用于内燃机的电子燃料喷射系统，其中根据喷射压力的变化计量喷射的燃料量。 具有预定打开压力的机械喷射器从分配室进料，分配室又由被电子控制燃料供应流加压的燃料回路供给。 燃料供给流是通过在压力下接收燃料的入口喷射器的流量与通过调节到储存器的燃料的返回流量的出口喷射器的流量之间的差，这些喷射器是连续流动电磁式的。 燃料供应由计算机进行频率控制，并通过伺服回路进行调节，以确保丰富度。 优选的实施例特别适用于使用其精度相对不重要的机械装置的低价电子燃料喷射系统。