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
    1.
    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 失效
    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

    公开(公告)号:US4472965A

    公开(公告)日:1984-09-25

    申请号:US420778

    申请日:1982-09-21

    IPC分类号: G01F1/68 G01F1/684 G01F1/698

    摘要: 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.

    摘要翻译: 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。

    Electromagnetically actuatable fuel injection valve
    2.
    发明授权
    Electromagnetically actuatable fuel injection valve 失效
    电磁致动燃油喷射阀

    公开(公告)号:US4813599A

    公开(公告)日:1989-03-21

    申请号:US62983

    申请日:1987-06-17

    摘要: The invention relates to an electromagnetically actuatable fuel injection valve which is used to supply fuel to a mixture compressing internal combustion engine. The fuel injection valve comprises a valve housing provided with an extension in which a valve seat body is disposed. A magnetic coil is mounted on each of the pole parts and a permanent magnet is disposed between the poles of the pole parts. The valve seat body is connected to a guide via a collet. The guide, collet and valve seat body are penetrated by a valve needle which is connected at its one end to an armature and which, at its other end, ends in a closing end. In the guide is a guide bore which is adapted to radially guide a spherical head portion of the valve needle and which then tapers into an abutment face, against which face the valve needle rests by way of the head when the injection valve is open. To open the valve, the valve needle is moved outwardly, thereby uncovering an ejection opening between a valve seat and the closing head. The valve seat body and collet may be screwed together for the purpose of adjusting the valve stroke.

    摘要翻译: 本发明涉及一种用于向压缩内燃机的混合物供给燃料的电磁致动燃料喷射阀。 燃料喷射阀包括设置有阀座体的延伸部的阀壳体。 每个磁极部分安装有一个电磁线圈,并且在磁极部分的磁极之间设置一个永久磁铁。 阀座主体通过夹头连接到引导件。 引导件,夹头和阀座体被阀针贯穿,该阀针的一端连接到电枢,并且在其另一端在闭合端部终止。 在引导件中是导向孔,该引导孔适于径向地引导阀针的球形头部,并随后逐渐变细成邻接面,当喷射阀打开时,所述导向孔朝着与针头相对的头部。 为了打开阀门,阀针向外移动,从而露出阀座和闭合头之间的排出口。 阀座主体和夹头可以拧紧在一起,以调节阀行程。

    Electromagnetically actuatable fuel injection valve
    3.
    发明授权
    Electromagnetically actuatable fuel injection valve 失效
    电磁致动燃油喷射阀

    公开(公告)号:US4786030A

    公开(公告)日:1988-11-22

    申请号:US124528

    申请日:1987-11-24

    IPC分类号: F02M51/06 F02M51/08 F16K31/08

    摘要: An electromagnetically actuatable fuel injection valve which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a valve seat body is disposed, included are two magnet coils two cores and one armature, which has a spherical guide section and the later is being connected to a valve needle. The spherical guide section is slidably supported with its circumference in a guide bore of the valve seat body and in its stroke movement away from the core is limited by a tapering stop opening which adjoins the guide bore. Flat faces are provided on the circumference of the spherical guide section, such that they decrease the area of contact between the spherical contact section and the stop opening.

    摘要翻译: 一种电磁致动燃料喷射阀,其用于将燃料供给具有外部提供的点火的混合物压缩内燃机。 燃料喷射阀包括具有其中设置有阀座体的口部件的阀壳体,具有两个磁芯和两个磁芯,一个电枢,其具有球形引导部分,并且稍后与阀针连接。 球形引导部分在其阀座主体的引导孔中以圆周方式可滑动地支撑,并且其远离芯部的行程运动受到与导向孔邻接的锥形止动开口的限制。 在球形导向部分的圆周上设置有平面,从而减小了球形接触部分与止动开口之间的接触面积。

    Fuel injection apparatus
    4.
    发明授权
    Fuel injection apparatus 失效
    燃油喷射装置

    公开(公告)号:US4753205A

    公开(公告)日:1988-06-28

    申请号:US285893

    申请日:1981-07-23

    摘要: 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.

    摘要翻译: 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。

    Device for measuring the mass of a flowing medium
    5.
    发明授权
    Device for measuring the mass of a flowing medium 失效
    用于测量流动介质质量的装置

    公开(公告)号:US4299124A

    公开(公告)日:1981-11-10

    申请号:US64265

    申请日:1979-08-06

    摘要: 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.

    摘要翻译: 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。

    Electromagnetically actuatable fuel injection valve
    6.
    发明授权
    Electromagnetically actuatable fuel injection valve 失效
    电磁致动燃油喷射阀

    公开(公告)号:US4807846A

    公开(公告)日:1989-02-28

    申请号:US124527

    申请日:1987-11-24

    摘要: An electromagnetically actuatable fuel injection valve which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece in which a valve seat body is disposed, two magnet coils two cores and one armature, which has a spherical guide section and is connected to a valve needle. The spherical guide section is slidably supported with its circumference in a guide bore of the valve seat body and in its stroke movement away from the core is limited by a tapering stop opening which adjoins the guide bore. A plastic bushing is mounted on a guide step of the valve seat body and is pressed by a spring against the core end face, thereby preventing a dirct flow of fuel to the remnant air gap on the armature, as a result of which the depositing of soil particles in the gap is avoided.

    摘要翻译: 一种电磁致动燃料喷射阀,其用于将燃料供给具有外部提供的点火的混合物压缩内燃机。 燃料喷射阀包括:阀壳体,其具有设置有阀座体的口部件,两个磁体线圈,两个芯部和一个电枢,其具有球形引导部并连接到阀针。 球形引导部分在其阀座主体的引导孔中以圆周方式可滑动地支撑,并且其远离芯部的行程运动受到与导向孔邻接的锥形止动开口的限制。 塑料衬套安装在阀座主体的引导台阶上,并被弹簧压靠在芯端面上,从而防止燃料旋转到电枢上的剩余空气间隙,结果, 避免间隙中的土壤颗粒。

    Electromagnetically actuatable fuel injection valve
    7.
    发明授权
    Electromagnetically actuatable fuel injection valve 失效
    电磁致动燃油喷射阀

    公开(公告)号:US4795097A

    公开(公告)日:1989-01-03

    申请号:US114946

    申请日:1987-10-30

    摘要: An electromagnetically actuatable fuel injection valve, which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a valve seat body is disposed, included are two magnet coils, two cores and one armature, which has a spherical guide section and is connected to a valve needle. The spherical guide section is slidably supported with its circumference in a guide bore of the valve seat body and in its stroke movement away from the core is limited by a tapered stop opening which adjoins the guide bore. Radially extending grooves are machined into the wall of the stop opening and are coextensive in the wall of the guide bore, so that the area of contact between the spherical guide section and the stop opening is decreased.

    摘要翻译: 一种可电磁致动的燃料喷射阀,其用于向具有外部点火供应的混合物压缩内燃机供应燃料。 燃料喷射阀包括具有其中设置有阀座体的口部件的阀壳体,具有两个磁体线圈,两个磁芯和一个电枢,其具有球形引导部分并连接到阀针。 球形引导部分在其阀座主体的引导孔中以圆周方式可滑动地支撑,并且远离芯部的行程移动受到邻接引导孔的锥形止动开口的限制。 径向延伸的槽被加工到止动开口的壁中并且在引导孔的壁中共同延伸,使得球形引导部分和止动开口之间的接触面积减小。

    Mixture formation system for mixture-compressing internal combustion
engines with externally supplied ignition
    9.
    发明授权
    Mixture formation system for mixture-compressing internal combustion engines with externally supplied ignition 失效
    用于混合压缩内燃机的混合物形成系统与外部提供的点火

    公开(公告)号:US4416241A

    公开(公告)日:1983-11-22

    申请号:US287002

    申请日:1981-07-27

    摘要: A mixture formation system is proposed for mixture-compressing internal combustion engines with externally supplied ignition. The mixture formation system includes an air intake fitting in which an electromagnetically actuatable injection valve is held concentrically, upstream of a throttle valve. Disposed upstream of the injection valve is an air flow rate meter provided with a temperature-dependent resistor. The electronic regulating device of the air flow rate meter and a pressure regulator for regulating the fuel pressure at the injection valve as well as a supplementary air valve for controlling an air bypass bypassing the throttle valve during the warm-up phase of the engine may be provided on the air intake fitting. As a result, a mixture formation system is attained which is simply constructed and functions reliably, and which because of its compact structure can be accommodated in the engine compartment of an internal combustion engine even where space is extremely limited.

    摘要翻译: 提出一种混合物形成系统,用于混合压缩具有外部点火的内燃机。 混合物形成系统包括进气配件,其中电磁致动喷射阀同心地保持在节流阀的上游。 设置在喷射阀上游的是具有温度依赖电阻器的空气流量计。 空气流量计的电子调节装置和用于调节喷射阀处的燃料压力的压力调节器以及用于控制在发动机的预热阶段旁路节流阀的空气旁路的辅助空气阀可以是 设在进气口上。 结果,实现了简单构造和功能可靠的混合物形成系统,并且由于其紧凑的结构可以容纳在内燃机的发动机室中,即使在空间极其有限的情况下也是如此。