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    • 4. 发明授权
    • Fuel injection apparatus
    • 燃油喷射装置
    • US4753205A
    • 1988-06-28
    • US285893
    • 1981-07-23
    • Heinrich KnappPeter RomannRudolf Sauer
    • Heinrich KnappPeter RomannRudolf Sauer
    • F02D41/34F02D41/18F02M69/00F02M69/04F02M69/46F02M69/48G01F1/684G01F1/698G01N23/225F02M39/00
    • G01F1/6983F02D41/187F02M69/043F02M69/46G01F1/6842
    • A fuel injection apparatus for separately ignited internal combustion gas engines is proposed. The fuel injection apparatus comprises an air intake stack in which an injection valve is arranged upstream of a throttle valve. A ring slot developed approximately Venturi-shaped is formed between the casing of the injection valve and the cylindrical inner wall of the air intake stack. An air bypass line discharges into the narrowest cross-section of the ring slot developed approximately Venturi-shaped which begins upstream of the approximately Venturi-shaped ring slot. An air measuring organ with at least one temperature dependent resistance for measuring the air mass flowing through is arranged in the air bypass line. Downstream of the temperature dependent resistance the air bypass line has a section developed in the shape of a funnel into which a cone shaped brake body concentrically protrudes which is supported axially displaceable and through which not only an optimal output signal of the air measuring organ in dependence on the sucked in air mass can be adjusted, but a balancing of the characteristic curve of the air measuring organ can take place as well. The proposed fuel injection apparatus allows a compact construction which permits the accommodation in the engine room of the internal combustion engine of motor vehicles even with cramped conditions as well as a reliable method of operation.
    • 提出了一种用于分别点燃的内燃机的燃油喷射装置。 燃料喷射装置包括其中喷射阀布置在节流阀的上游的进气排气管。 在喷射阀的外壳和进气口的圆柱形内壁之间形成有大致文氏管状的环槽。 空气旁路管线排放到大致文丘里管形状的环形狭槽的最窄的横截面,其开始在大致文丘里形环槽的上游。 在空气旁路管路中布置有具有至少一个温度依赖性电阻的空气测量器,用于测量流过的空气质量。 在温度依赖性电阻的下游,空气旁路管线具有形成为锥形形状的截面,锥形制动器体同心地突出到其中,该锥形制动体被轴向移位,并且不仅依赖于空气测量器官的最佳输出信号 可以调节吸入的空气质量,但也可以平衡空气测量器官的特性曲线。 所提出的燃料喷射装置允许紧凑的结构,即使在狭窄的条件下也允许机动车辆的内燃机的发动机室的容纳以及可靠的操作方法。
    • 5. 发明授权
    • Device for measuring the mass of a flowing medium
    • 用于测量流动介质质量的装置
    • US4299124A
    • 1981-11-10
    • US64265
    • 1979-08-06
    • Heinrich KnappRudolf SauerPeter RomannUdo HafnerThomas WilfertWerner Kammerer
    • Heinrich KnappRudolf SauerPeter RomannUdo HafnerThomas WilfertWerner Kammerer
    • G01F1/68G01F1/684G01F1/69G01F1/698
    • G01F1/698G01F1/684G01F1/6842G01F1/69
    • A temperature-dependent resistor or hot wire is extended over at least three anchoring points and to improve the measuring accuracy of the hot wire and to ensure sufficiently high temperatures over the entire active length of the hot wire during a cleaning step by burning, the hot wire is configured in the shape of loops at all anchoring points and the intersecting wire sections of the loops are conductively connected with one another. Current lead wires are preferably conductively attached to the hot wire by means of which the current is conducted to an electric control device. The end anchoring points are preferably electrically heated during an interruption of the measuring process of the hot wire and the hot wire may be directed in a W-shape over anchoring points whereat the hot wire is connected to the electric current, during the measuring process, via the two central, symmetrical anchoring points and upon an interruption of the measuring process, by means of a switching device, via the two end anchoring points.
    • 温度依赖的电阻器或热丝在至少三个锚定点上延伸,并提高热丝的测量精度,并确保在清洁步骤期间在热丝的整个有效长度上的足够高的温度通过燃烧,热 导线在所有锚固点处被构造成环形,并且环的相交线部分彼此导电连接。 电流引线优选地导电地附接到热丝,通过该导线将电流传导到电控制装置。 端部锚固点优选在热丝的测量过程中断期间被电加热,并且在测量过程期间,热丝可以在锚固点处被引导成W形,其中热线连接到电流, 通过两个中心的对称锚固点,并且在中断测量过程时,通过开关装置经由两个端部锚定点。
    • 10. 发明授权
    • Method for preventing damage to a temperature-dependent resistor
disposed in a flow cross-section caused by overheating and air flow
rate measuring device for performing the method
    • 用于防止由过热引起的流动横截面中设置的温度依赖性电阻器的损坏的方法和用于执行该方法的空气流量测量装置
    • US4472965A
    • 1984-09-25
    • US420778
    • 1982-09-21
    • Heinrich KnappPeter RomannFranz-Josef Thiel
    • Heinrich KnappPeter RomannFranz-Josef Thiel
    • G01F1/68G01F1/684G01F1/698
    • G01F1/684G01F1/6842G01F1/6983
    • A method for preventing damage to a temperature-dependent resistor disposed in a flow cross-section caused by overheating as a result of the ignition of a combustible, gaseous mixture during a burnoff process and an air flow rate measuring device for performing the method are proposed. The air flow rate measuring device includes a temperature-dependent resistor disposed in a bypass line. Deposits on the surface of the temperature-dependent resistor are removed in a burnoff process, preferably following the opening of the ignition switch. The danger then exists that if the device is used in a motor vehicle, combustible fuel-air mixture located in the vicinity of the temperature-dependent resistor may ignite, and the temperature-dependent resistor would thereby be destroyed because of overheating. For this reason, a slide member is pushed into the flow cross-section during the burnoff process, so that only a small combustible volume is available in the vicinity of the temperature-dependent resistor.
    • 提出了一种用于防止由于在燃烧过程中燃烧的气体混合物的点燃而引起的由过热引起的流动横截面中的温度依赖电阻的损坏的方法和用于执行该方法的空气流量测量装置 。 空气流量测量装置包括设置在旁路管线中的温度依赖电阻器。 在燃烧过程中,优选在点火开关打开之后,在温度依赖性电阻器的表面上的沉积物被去除。 因此存在如下危险:如果该装置用于机动车辆中,位于温度敏感电阻附近的可燃燃料 - 空气混合物可能会点燃,因此温度依赖性电阻器将由于过热而被破坏。 因此,在燃烧过程中,滑动构件被推入流动横截面,使得在温度依赖性电阻器附近只有小的可燃体积可用。