Fuel injection pump for internal combustion engines
    11.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号:US4811710A

    公开(公告)日:1989-03-14

    申请号:US220278

    申请日:1988-07-18

    CPC classification number: F02D1/12 F02D17/04 F02D41/221 F02M63/0205

    Abstract: A fuel injection pump for internal combustion engines having a hydraulic control mechanism includes a control cylinder with a control piston actuating a control member, a hydraulic work chamber and one switching valve each for an input and an output controlled by a valve control unit. The inflow to and return from the work chamber is provided with the control valves in order to shut down the engine upon a shutoff or a malfunction in the hydraulic control mechanism. The fuel feed pump is electrically driven, and the hydraulic work chamber communicates with the fuel tank via a relief device. The supply of current to the valve control unit and the feed pump is switched on and off, along with the rest of the current supply to the engine, via a driving switch. Additionally, the valve control unit is embodied such that upon the appearance of a persistent control deviation of the control member, the valve control unit shuts off the feed pump. The relief device includes various variant embodiments operative upon shutoff of the current supply or the occurrence of a malfunction and enables the restoration of the control mechanism to its zero or stopping position.

    Abstract translation: 一种具有液压控制机构的内燃机用燃料喷射泵,具有:控制气缸,具有致动控制构件的控制活塞,液压工作室和一个切换阀,各自用于由阀控制单元控制的输入和输出。 为了在液压控制机构的关闭或故障时关闭发动机,从工作室流入和返回的控制阀设有控制阀。 燃料供给泵是电驱动的,并且液压工作室通过释放装置与燃料箱连通。 通过驱动开关,向阀控制单元和进给泵的电流供应以及通向发动机的剩余电流被打开和关闭。 此外,阀控制单元被实施为使得在出现控制构件的持续控制偏差时,阀控制单元关闭进给泵。 卸载装置包括在关闭当前供应或发生故障时操作的各种变型实施例,并且使得能够将控制机构恢复到其零点或停止位置。

    Safety arrangement for an internal combustion engine
    12.
    发明授权
    Safety arrangement for an internal combustion engine 失效
    内燃机的安全装置

    公开(公告)号:US4515125A

    公开(公告)日:1985-05-07

    申请号:US571477

    申请日:1984-01-17

    Abstract: The invention is directed to a safety arrangement for an internal combustion engine having self-ignition where, in the sense of an overall system monitoring, specific signals relating to the operating conditions of the internal combustion engine are continuously monitored. These signals are indicative, for example, of the position of the throttle pedal, the computed rack-travel nominal or desired value, and the rotational speed. The monitored signals are processed and a corrected rack-travel nominal value is generated by means of a minimum-value selection circuit. The corrected rack-travel nominal value signal generated in this manner is fed to the rack controller of an EDC unit. At the same time, a deviation in rack travel is determined utilizing the corrected rack travel nominal value in combination with an actual-value signal of the rack travel fed back from the rack-travel sensor. The signal indicative of actual rack travel also serves for a comparison with the upper and lower limits of the rack-travel sensor voltage; and, depending on the error condition occurring, either the output stage of the rack controller is de-energized and/or the fuel-injection pump is simultaneously shut off by means of an electrical shutoff valve (ELAB); or, a decision for an emergency operation is made.

    Abstract translation: 本发明涉及一种具有自点火的内燃机的安全装置,其中在整个系统监测的意义上,连续监测与内燃机的运行状况相关的特定信号。 这些信号例如表示节气门踏板的位置,所计算的齿条运动标称值或期望值以及转速。 监视的信号被处理,并且通过最小值选择电路产生校正的机架行进标称值。 以这种方式产生的校正的机架行进标称值信号被馈送到EDC单元的机架控制器。 同时,利用校正的齿条运动标称值与从齿条移动传感器反馈的齿条行程的实际值信号结合来确定齿条行程的偏差。 表示实际机架行程的信号也用于与机架行程传感器电压的上限和下限进行比较; 并且根据发生的错误情况,机架控制器的输出级被断电,和/或燃料喷射泵同时被电截止阀(ELAB)切断; 或者进行紧急操作的决定。

    Apparatus for fixing the composition of the gas content of internal
combustion engine cylinders

    公开(公告)号:US4279235A

    公开(公告)日:1981-07-21

    申请号:US70471

    申请日:1979-08-28

    Abstract: An apparatus for fixing the composition of the gas content and the degree of filling of cylinders in an internal combustion engine having autoignition, including a fuel metering device to which a signal dependent at least on the position of the driving pedal can be delivered and having an exhaust gas feedback control element in the air intake line as well as an apparatus for controlling the exhaust feedback rate. The apparatus includes measurement value transducers for the at least indirectly detectable total cylinder filling and the ratio of fresh air to exhaust gas or the air ratio pertaining to the aspirated fresh air and/or the fuel metering is influenced among others in accordance with this measurement value. The detection of the total cylinder filling can be accomplished indirectly by using measurement techniques for detecting pressure and temperature in the intake manifold. Besides using pressure transducers, whose output signal may be corrected in accordance with temperature, if desired, it is also possible to use an arrangement for measurement of the total gas quantity between the exhaust feedback point and the inlet valves. The object of the proposed apparatus is to set the mixture of fresh air and exhaust gas which is optimal at any given time with respect to toxic substances in the exhaust, by means of processing as many observable influencing factors as possible, and in particular by processing the total cylinder filling, which is of significance especially in terms of the limitation of solids in the exhaust which is expected to be made a legal requirement. Alternatively, the signal for the total cylinder filling can be used in order to adjust a suitably controllable supercharger via a governor in such a manner that the total cylinder filling (charge quantity) is constantly controlled. Thus, under altered environmental conditions, the optimal air ratio for normal conditions pertaining to the aspirated fresh air can be maintained with respect to toxic substances in the exhaust.

    Apparatus for controlling the mixture of an internal combustion engine
    15.
    发明授权
    Apparatus for controlling the mixture of an internal combustion engine 失效
    用于控制内燃机的混合物的装置

    公开(公告)号:US4170967A

    公开(公告)日:1979-10-16

    申请号:US952905

    申请日:1978-10-19

    CPC classification number: F02D41/1474 F02D41/1494

    Abstract: The fuel mixture of an engine is controlled by a mechanism responsive to the signals from an oxygen sensor located in the exhaust pipe. The oxygen sensor is provided with a heater to permit rapid attainment of normal operating temperatures. The heater is controlled by a switch actuated by a timing circuit. The timing circuit closes the switch whenever the alternating signals from a comparator responsive to sensor signals do not occur, indicating sensor non-operation.

    Abstract translation: 发动机的燃料混合物由响应于位于排气管中的氧传感器的信号的机构控制。 氧传感器设有一个加热器,可以快速达到正常工作温度。 加热器由由定时电路驱动的开关控制。 每当响应于传感器信号的比较器的交流信号不发生时,定时电路关闭开关,指示传感器不工作。

    Electronic control device for operating parameters
    17.
    发明授权
    Electronic control device for operating parameters 失效
    用于操作参数的电子控制装置

    公开(公告)号:US4762107A

    公开(公告)日:1988-08-09

    申请号:US557392

    申请日:1983-12-02

    Abstract: An electronic control device is proposed for manipulated variables of an internal combustion engine having self-ignition. In this device, an injection duration signal is utilized as a load signal. While the injection onset signal can be satisfactorily detected via the opening speed, the hysteresis signal is efficaciously utilized to detect the signal for the end of injection. The proposed solution makes it possible to detect and regulate both the injection onset and the fuel quantity, using only a single transducer in the injection valve, on or in the fuel line, or on the pumping element, and this load signal is available for generalized uses in the control device. It is furthermore possible to obtain an rpm signal on the basis of the signal for injection onset and/or end, and to process it further.

    Abstract translation: 提出了一种具有自点火的内燃机的操纵变量的电子控制装置。 在该装置中,使用喷射持续时间信号作为负载信号。 虽然可以通过打开速度令人满意地检测注射开始信号,但是有效地利用滞后信号来检测用于注射结束的信号。 所提出的解决方案使得可以仅使用注射阀中的单个换能器,在燃料管线上或燃料管线上或泵送元件上来检测和调节喷射开始和燃料量,并且该负载信号可用于广义的 用于控制装置。 此外,还可以基于注射开始和/或结束的信号获得rpm信号,并进一步处理。

    System for control of the supercharging of an internal combustion engine
    18.
    发明授权
    System for control of the supercharging of an internal combustion engine 失效
    用于控制内燃机增压的系统

    公开(公告)号:US4686830A

    公开(公告)日:1987-08-18

    申请号:US781758

    申请日:1985-09-30

    CPC classification number: F02D41/02 F02D41/0007 F02B1/04 Y02T10/144 Y02T10/42

    Abstract: An automatic control for an adjustable turbosupercharger in the air supply of an internal combustion engine adds a static anticipatory control signal and a dynamic anticipatory control signal to the error signal that is provided to an actuating mechanism for the control of the supercharger. The error signal is obtained by comparing actual charging pressure with a reference charging pressure for one portion of the control displacement and in the other portion of the control displacement the error signal is obtained by comparing actual air quantity supplied to an engine cylinder with a reference air quantity. This results from a limiting device interposed in the charging pressure control loop. The static anticipatory control depends on engine speed and engine load and is supplied with additive corrections for engine temperature and for battery voltage. A limit value dependent upon engine speed is introduced through a minimum circuit to put a lower limit on the sum of error signal and static anticipatory control and the resulting signal is then added to a dynamic anticipatory control and derived from rate of control displacement. The control signal is also interrupted during the engine start period.

    Abstract translation: 在内燃机的空气供应中的可调涡轮增压器的自动控制将静态预期控制信号和动态预期控制信号添加到提供给用于控制增压器的致动机构的误差信号。 通过将实际充气压力与控制位移的一部分的参考充气压力进行比较,并且在控制位移的另一部分中,通过将供给发动机气缸的实际空气量与参考空气进行比较来获得误差信号,从而获得误差信号 数量。 这是由插入在充电压力控制回路中的限制装置产生的。 静态预期控制取决于发动机转速和发动机负荷,并提供发动机温度和电池电压的附加校正。 通过最小电路引入取决于发动机转速的极限值,以对误差信号和静态预期控制的总和进行下限,然后将所得到的信号加到动态预期控制中,并从控制位移速率导出。 在发动机起动期间,控制信号也被中断。

    Apparatus for actuating an adjustment device acting upon a control
apparatus for exhaust recirculation in internal combustion engines
    20.
    发明授权
    Apparatus for actuating an adjustment device acting upon a control apparatus for exhaust recirculation in internal combustion engines 失效
    用于致动调节装置的装置,其作用在用于内燃机中的排气再循环的控制装置

    公开(公告)号:US4300515A

    公开(公告)日:1981-11-17

    申请号:US96072

    申请日:1979-11-20

    CPC classification number: F02M41/126 F02D1/04 F02D21/08 F02M26/21 F02M26/62

    Abstract: An apparatus is proposed which serves the purpose of load-dependent actuation of an adjustment device, wherein the cross section and/or the pressure drop of an exhaust recirculation line in an internal combustion engine can be varied in accordance with load. An injection pump of conventional design is associated with the internal combustion engine and further includes a quantity adjustment device, the position of which acts as a control variable for the load. With this control variable, a booster apparatus is controlled via a comparison apparatus; the output variable of the booster apparatus in turn is the control variable for the actuation of an adjustment device which acts on an exhaust recirculation control apparatus. When a threshold value for load is exceeded, the exhaust recirculation is precluded. The control variable is preferably formed as a fuel pressure signal with the fuel withdrawn from the suction chamber of the injection pump. Apparatuses are proposed by means of which, in the event of the actuation of the control apparatus for exhaust recirculation, the smallest possible removal quantity of fuel is required for control purposes.

    Abstract translation: 提出了一种用于调节装置的负载相关致动的装置,其中内燃机中的排气再循环管线的横截面积和/或压降可以根据负载而变化。 常规设计的注射泵与内燃机相关联,并且还包括量调节装置,其位置作为负载的控制变量。 利用该控制变量,通过比较装置控制升压装置; 升压装置的输出变量又是作用在排气再循环控制装置上的调节装置的致动的控制变量。 当超过负载阈值时,不排除排气再循环。 控制变量优选地形成为从喷射泵的吸入室排出的燃料的燃料压力信号。 提出了一种装置,通过该装置,在用于排气再循环的控制装置的致动的情况下,为了控制目的,需要最小的可能的燃料去除量。

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