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.

    Device to activate an adjusting member in dependence on load
    34.
    发明授权
    Device to activate an adjusting member in dependence on load 失效
    根据负载激活调整构件的装置

    公开(公告)号:US4228773A

    公开(公告)日:1980-10-21

    申请号:US861378

    申请日:1977-12-16

    CPC classification number: F02M26/62

    Abstract: A device which serves to activate an adjusting member in dependence on load, in which especially the cross section and/or the pressure differential of an exhaust gas return line which is provided in the intake manifold of an internal combustion engine can be altered in dependence on the load. A fuel injection pump of a known construction is associated with the internal combustion engine, and includes a rate adjusting element, the position of which serves as the control value for the load. This control value, together with a subsequently arranged amplifier device for the control value, produces an adjusting value for the activation of the adjusting element.

    Abstract translation: 用于根据负载激活调节构件的装置,其特别是设置在内燃机的进气歧管中的废气返回管的横截面和/或压差可以根据 负载。 已知结构的燃料喷射泵与内燃机相关联,并且包括速率调节元件,其位置用作负载的控制值。 该控制值与随后布置的用于控制值的放大器装置一起产生用于激活调节元件的调整值。

    Apparatus for controlling the mixture of an internal combustion engine
    35.
    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。

    Apparatus to control the composition of the operating mixture of an
internal combustion engine
    36.
    发明授权
    Apparatus to control the composition of the operating mixture of an internal combustion engine 失效
    用于控制内燃机的操作混合物的组成的装置

    公开(公告)号:US4161934A

    公开(公告)日:1979-07-24

    申请号:US832704

    申请日:1977-09-12

    Applicant: Gerhard Stumpp

    Inventor: Gerhard Stumpp

    CPC classification number: F02D1/12 F02D1/065

    Abstract: An apparatus to control the composition of the operating mixture of an internal combustion engine in which the fuel is apportioned by means of a variable cross-sectional apportionment area where the pressure drop is kept constant by a differential pressure valve. The uncontrolled pressure chamber (reference pressure chamber) of the differential pressure valve lies downstream of an apportioning recessed area. A given fuel discharge quantity from the controlled pressure chamber of the differential pressure valve is determined in accordance with the fluctuations of the pressure in the reference pressure chamber, and a positioning motor provided for the correction of the magnitude effecting the deviation of the reference pressure is further actuated in accordance with the discharge quantity. The controlled pressure chamber lies upstream of the apportioning recessed area within a fuel supply line connected to a fuel feed pump, and a storage chamber having a wall displaceable against a restoring force as well as a pressure control valve that is connected to the fuel supply line.

    Abstract translation: 一种用于控制内燃机的操作混合物的组成的装置,其中燃料通过可变横截面分摊区域分摊,其中压降通过差压阀保持恒定。 差压阀的不受控制的压力室(参考压力室)位于分配凹陷区域的下游。 来自差压阀的受控压力室的给定燃料排出量根据参考压力室中的压力的​​波动来确定,并且用于校正影响参考压力偏差的量值的定位电动机是 根据排出量进一步致动。 控制压力室位于连接到燃料供给泵的燃料供应管线内的分配凹陷区域的上游,以及具有可抵抗恢复力移动的壁的储存室以及连接到燃料供给管线的压力控制阀 。

    Fuel-air mixture controller for internal combustion engines
    38.
    发明授权
    Fuel-air mixture controller for internal combustion engines 失效
    内燃机燃油混合控制器

    公开(公告)号:US4015571A

    公开(公告)日:1977-04-05

    申请号:US551498

    申请日:1975-02-20

    Applicant: Gerhard Stumpp

    Inventor: Gerhard Stumpp

    CPC classification number: F02D1/02 F02D11/06 F02M41/124

    Abstract: An air flow rate sensor, located in the induction tube of an internal combustion engine, displaces a fuel metering slide, thereby changing the fuel flow and the fuel pressure gradient. This pressure gradient is applied to a differential pressure valve which actuates a fuel flow control throttle until the pressure gradient has been restored to a nominal value, corresponding to a desired fuel-air ratio.In a variant embodiment, an arbitrary change in the metered out fuel results in a fuel pressure gradient which is used to reset an air-flow control member until the nominal value of the pressure gradient has been restored, corresponding to a desired fuel-air ratio.

    Abstract translation: 位于内燃机的感应管中的空气流量传感器使燃料计量滑块移位,从而改变燃料流量和燃料压力梯度。 该压力梯度被施加到差压阀,该差压阀致动燃料流量控制节气门,直到压力梯度恢复到对应于所需燃油比的标称值。

    Fuel injection system
    40.
    发明授权

    公开(公告)号:US3983849A

    公开(公告)日:1976-10-05

    申请号:US589856

    申请日:1975-06-24

    Applicant: Gerhard Stumpp

    Inventor: Gerhard Stumpp

    Abstract: A fuel injection system for stratified-charge engines includes a fuel metering valve assembly controlled by an air flow sensor. The restoring force on the movable plunger in the fuel metering assembly may be varied in dependence on load by a differential pressure valve whose bias is changed by a cam-follower which cooperates with a gas-pedal linked cam. The system may also include a throttle bypass also controlled by a cam. The system may further include separate fuel injection valves for each main combustion chamber, fed by a fuel distributor mechanism.

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