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公开(公告)号：US4585174A
公开(公告)日：1986-04-29
申请号：US584353
申请日：1984-02-28
申请人： Heinrich Knapp
发明人： Heinrich Knapp
CPC分类号： F02M51/0632 , F02M2051/08 , F02M2200/304 , Y10S239/90
摘要： An electro-magnetically operable valve serving especially as fuel injection valve for a fuel injection device of internal combustion engines. The valve is composed of a valve housing, in which a magnetic coil is disposed around a core. The core has a concavely formed stop face against which, during excitation of the magnetic coil, a ball rests. The ball serves as an armature and movable valve part and cooperates with a fixed valve seat. The radius (r.sub.1) of the concavely formed stop face of the core is larger by about 0.1 to 1 mm than the radius (r.sub.2) of the ball. This causes a sufficient hydraulic cushion between the end face of the core and the ball when the ball is attracted toward the core upon magnetic energization of the latter and thus prevents a bouncing movement of the ball or its sticking to the core, when the ball is biased toward the valve seat upon de-energization of the core.
摘要翻译： 一种电磁操作阀，其特别用作内燃机燃料喷射装置的燃料喷射阀。 阀由阀壳体构成，其中磁性线圈围绕芯部设置。 芯部具有凹形形成的止动面，在磁性线圈的激励期间，该止动面处于一个球状部。 球用作衔铁和可动阀部分，并与固定阀座配合使用。 芯的凹形形成止挡面的半径（r1）比球的半径（r2）大0.1〜1mm左右。 这在球体的磁场通电时，当球被吸引到铁心时，在球芯的端面与球之间产生足够的液压衬垫，从而防止球的弹跳运动或其粘附到球心上 在芯芯断电时偏压阀座。
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公开(公告)号：US4416238A
公开(公告)日：1983-11-22
申请号：US375900
申请日：1982-05-07
申请人： Heinrich Knapp , Rudolf Sauer , Rudolf Krauss , Udo Hafner
发明人： Heinrich Knapp , Rudolf Sauer , Rudolf Krauss , Udo Hafner
CPC分类号： F02M69/043 , F02M61/145 , F02M69/042
摘要： A fuel injection system for injecting fuel into the air intake tube of an internal combustion engine, including at least one fuel injection valve, which is disposed in a holder body and communicates with a fuel supply line and a fuel outflow line. The fuel injection valve is provided with a fuel supply groove, branching off from which are fuel inlet openings, and a fuel outflow groove, leading away from which are fuel outlet openings. The fuel injection valve is guided in the radial direction in a guide opening of the holder body by supporting bodies of a fuel filter which extends axially over the fuel injection valve, covering the fuel supply groove and the fuel outflow groove. The middle supporting body of the fuel filter is embodied such that it seals off the fuel supply line and the fuel supply groove from the fuel outflow line and the fuel outflow groove. In order to carry away vapor bubbles, there is either a degassing conduit embodied on the fuel injection valve between the fuel supply groove and the fuel outflow groove, a degassing conduit embodied on the middle supporting point, or a degassing conduit embodied on the holder body.
摘要翻译： 一种用于将燃料喷射到内燃机的进气管中的燃料喷射系统，所述燃料喷射系统包括至少一个燃料喷射阀，所述至少一个燃料喷射阀设置在保持器主体中并与燃料供应管线和燃料流出管线连通。 燃料喷射阀设置有燃料供给槽，从燃料供给槽分支为燃料入口，以及燃料流出槽，其远离燃料出口。 燃料喷射阀通过沿燃料喷射阀轴向延伸并覆盖燃料供给槽和燃料流出槽的燃料过滤器的支撑体沿着保持器主体的引导开口在径向上被引导。 燃料过滤器的中间支撑体被实施为使得燃料供给管线和燃料供给槽与燃料流出管线和燃料流出槽密封。 为了携带蒸汽气泡，在燃料供给槽和燃料流出槽之间的燃料喷射阀上具有脱气导管，在中间支撑点上实现的脱气导管，或者在保持体上实施的脱气导管 。
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公开(公告)号：US4354472A
公开(公告)日：1982-10-19
申请号：US146867
申请日：1980-05-05
申请人： Heinrich Knapp , Wolfgang Maisch
发明人： Heinrich Knapp , Wolfgang Maisch
CPC分类号： F02M69/28
摘要： A fuel injection system is proposed which can be triggered in such a manner that when control signals characterizing engine overrunning are present the fuel injection is interrupted. The fuel injection system includes metering valves, each of which is assigned one regulating valve, the movable valve element of which can be exposed on one side to the fuel pressure downstream of the pertinent metering valve and on the other side to the pressure in a control pressure line, which is limited on one side by a control throttle and on the other side by a control pressure valve. During engine overrunning, an electromagnetic valve which is disposed in a bypass that bypasses the control throttle or the control pressure valve or an electromagnetic valve in the control pressure line can be controlled in such a manner that the fuel pressure in the control pressure line increases and the regulating valves close, as a result of which the fuel injection is interrupted.
摘要翻译： 提出了一种燃料喷射系统，其可以以表征发动机超速的控制信号的方式被触发，燃料喷射被中断。 燃料喷射系统包括计量阀，每个计量阀被分配一个调节阀，其可动阀元件可以在一侧暴露于相关计量阀下游的燃料压力，另一侧暴露于控制器中的压力 压力线通过控制节流阀一侧限制，另一侧由控制压力阀限制。 在发动机超速运转期间，可以以控制压力线上的燃料压力增加的方式控制设置在绕过控制节气门的旁路的电磁阀或控制压力阀中的电磁阀， 调节阀关闭，因此燃料喷射被中断。
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公开(公告)号：US4300506A
公开(公告)日：1981-11-17
申请号：US59362
申请日：1979-07-20
申请人： Heinrich Knapp , Wolfgang Rehmann
发明人： Heinrich Knapp , Wolfgang Rehmann
CPC分类号： F02M69/22 , F02D9/103 , F02M69/30 , Y10S261/82
摘要： A fuel supply system for supplying fuel and for satisfactorily preparing the fuel-air mixture fed to a mixture-compressing, spark-ignited internal combustion engine which comprises an arbitrarily operable throttle element arranged in the air intake manifold wherein fuel can be supplied upstream of this throttle element. The throttle element is mounted on a rocking lever connected to a bearing shaft arranged outside of the air flow at the air intake manifold and is displaceable in the opening direction during full load and at higher speeds against the force of a compensating spring until the throttle element comes into contact, with a full-load stop, with the rocking lever. During full load and at low speeds, the compensating spring displaces the throttle element in the closing direction so that a rather large pressure drop occurs at the throttle element so that an improved conditioning of the injected fuel is obtained. A resilient member, engaging via a compensating lever on the bearing shaft, serves to compensate for the opening moment effective at the throttle element due to the air pressure drop. The resilient member is under the effect, on the one hand, of the air pressure in the air intake manifold section downstream of the throttle element and, on the other hand, of the atmospheric pressure or the air pressure upstream of the throttle element with a resetting spring effective on the throttle element.
摘要翻译： 一种用于供应燃料并且令人满意地准备供给到混合压缩的火花点火的内燃机的燃料 - 空气混合物的燃料供应系统，其包括布置在进气歧管中的任意操作的节流元件，其中可以在该空气混合物的上游供应燃料 节流元件 节流元件安装在连接到位于进气歧管处的空气流的外侧的轴承轴上的摆动杆上，并且能够在满负载期间以较高的速度抵抗打开方向移动，抵抗补偿弹簧的力直到节流元件 与摇杆接触，用全负载停止。 在满载和低速期间，补偿弹簧在关闭方向上使节流元件移位，使得在节流元件处发生相当大的压降，从而获得喷射燃料的改进的调节。 通过轴承轴上的补偿杆接合的弹性构件用于补偿由于气压下降而在节流元件处有效的打开力矩。 另一方面，弹性构件一方面处于节气门元件下游的进气歧管部分中的空气压力，另一方面由节气门元件上游的空气压力 复位弹簧在节流元件上有效。
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公开(公告)号：US4100904A
公开(公告)日：1978-07-18
申请号：US758369
申请日：1977-01-11
申请人： Konrad Eckert , Heinrich Knapp , Gerhard Stumpp
发明人： Konrad Eckert , Heinrich Knapp , Gerhard Stumpp
摘要： A fuel injection system employing continuous injection into the induction manifold for varying the fuel-air ratio during the warm-up phase of the engine. A pivoting flap responds to the air flow through the induction tube and rotates a metering valve core. Openings in this valve core cooperate with openings in the valve cylinder to form a metering valve aperture of variable cross-section. The pressure differential across this aperture influences the metered fuel quantity and this pressure differential can be varied during the warm-up phase of the engine. The variation in the pressure differential is accomplished by heating a bi-metallic spring which disengages from the closure element of a diaphragm valve, increasing the closing bias thereof. The resulting increase in fuel pressure downstream of the metering aperture displaces a piston which removes the additional biasing force on another diaphragm valve, permitting the reduction of fuel pressure upstream of the metering aperture with the net effect of a reduction of the pressure differential across the metering aperture and a corresponding reduction of the metered fuel quantity, i.e., a leaning out of the fuel-air mixture.
摘要翻译： 一种燃料喷射系统，其采用连续喷射到所述感应歧管中以在所述发动机的预热阶段期间改变燃料空气比。 枢转翼片响应通过感应管的空气流并旋转计量阀芯。 该阀芯中的开口与阀缸中的开口配合以形成具有可变横截面的计量阀孔。 该孔口上的压力差影响计量燃料量，并且该压差可以在发动机的预热阶段期间变化。 压差的变化通过加热从隔膜阀的闭合元件脱离的双金属弹簧来增加其闭合偏压来实现。 所产生的在计量孔口下游的燃料压力的增加使活塞消除了另一个隔膜阀上的附加偏压力，从而允许在计量孔口上游减少燃料压力，同时减小了计量上的压力差 孔径和相应的计量燃料量的减少，即从燃料 - 空气混合物中倾斜出来。
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公开(公告)号：US4007719A
公开(公告)日：1977-02-15
申请号：US645385
申请日：1975-12-30
CPC分类号： F02D21/10 , F02D35/0038 , F02D41/1454 , F02D41/1456
摘要： An apparatus for the detoxification of exhaust gases of an internal combustion engine having a fuel metering mechanism, such as a carburetor, which meters out fuel corresponding to the air quantity, is described. An air quantity measuring device is provided which controls the metering mechanism so as to achieve a slightly enriched fuel-air mixture. Thus, the air number (.lambda.) is initially maintained at less than 1, the air number 1 designating a stoichiometric fuel-air mixture. Secondary air is admitted via a secondary air pump, an oxygen sensor being disposed on the exhaust side, until such time an optimum of fuel-air mixture is reached. The secondary air is admitted into the suction tube of the internal combustion engine downstream of the air measuring device.
摘要翻译： 描述了一种用于对具有诸如化油器的燃料计量机构排出对应于空气量的燃料排出的内燃机的排气的装置。 提供一种空气量测量装置，其控制计量机构以实现略微富集的燃料 - 空气混合物。 因此，空气数（λ）最初保持在小于1，空气数1指定化学计量的燃料 - 空气混合物。 二次空气通过二次空气泵进入，氧传感器设置在排气侧，直到达到最佳的燃料 - 空气混合物。 二次空气进入空气测量装置下游的内燃机的吸入管中。
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公开(公告)号：US3993034A
公开(公告)日：1976-11-23
申请号：US577118
申请日：1975-05-13
CPC分类号： F02M69/386 , F02M69/22
摘要： A fuel injection system for externally ignited internal combustion engines in which a fuel metering and distributing valve is controlled by an air sensing element disposed in the air suction tube of the engine and by structure which is adapted to alter the restoring force exerted on the air sensing element through the fuel metering and distributing valve. The noted structure includes a control pressure conduit, an uncoupling throttle disposed between a fuel supply conduit and the control pressure conduit, at least one electromagnetic valve disposed in the control pressure conduit for varying pressure in the control pressure conduit in dependence on at least one operating parameters of the engine, at least one pressure regulating valve also serving to vary the pressure in the control pressure conduit, and a storage element for hydraulic integration during pressure changes in the control pressure conduit. The storage element, the electromagnetic valve and the pressure regulating valve are disposed in series in the control pressure conduit downstream of the uncoupling throttle, and the restoring force is generated by the fuel pressure downstream of the uncoupling throttle.
摘要翻译： 一种用于外部点燃的内燃机的燃料喷射系统，其中燃料计量和分配阀由设置在发动机的空气吸入管中的空气感测元件控制，并且其结构适于改变施加在空气感测上的恢复力 元件通过燃油计量分配阀。 所指出的结构包括控制压力导管，设置在燃料供应管道和控制压力导管之间的非耦合节气门，至少一个设置在控制压力管道中的电磁阀，用于根据至少一个操作来改变控制压力管道中的压力 发动机的参数，至少一个压力调节阀，其也用于改变控制压力导管中的压力，以及用于在控制压力导管中的压力变化期间用于液压一体化的存储元件。 存储元件，电磁阀和压力调节阀串联设置在解耦节流阀下游的控制压力导管中，并且通过非耦合节气门下游的燃料压力产生恢复力。
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公开(公告)号：US3945204A
公开(公告)日：1976-03-23
申请号：US483816
申请日：1974-06-27
申请人： Heinrich Knapp
发明人： Heinrich Knapp
CPC分类号： F02D41/182 , F02D41/1441 , F02D41/1475
摘要： A process for reducing the concentration of undesirable components in the exhaust gases of an internal combustion machine. The process provides injecting fuel into the hot exhaust gases within the exhaust system and controlling the quantity of this additional fuel by means of an oxygen sensor located within the exhaust system and by appropriate settings of the primary fuel metering system of the engine. A catalyzer unit for chemical interaction with the exhaust gases may also be provided.
摘要翻译： 一种降低内燃机废气中不需要的组分浓度的方法。 该过程为排气系统内的热废气提供喷射燃料，并通过位于排气系统内的氧气传感器以及通过发动机的一次燃料计量系统的适当设定来控制该附加燃料的量。 还可以提供用于与废气化学相互作用的催化剂单元。
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公开(公告)号：US3930478A
公开(公告)日：1976-01-06
申请号：US396410
申请日：1973-09-12
CPC分类号： F02M31/0805 , F02M7/17 , Y02T10/126
摘要： An exhaust gas-detoxicating system for an externally ignited internal combustion engine having at least one air intake suction tube wherein a fuel/air mixture is produced by metering into said tube fuel from a fuel metering device, and wherein the fuel air mixture, before its entry into a cylinder of the engine, can be deviated through a heated-up bypass of at least one suction tube by means of a flap valve being disposed in said suction tube and being controllable in dependence on characteristic engine data, is improved by providing, in combination, measuring means for detecting the amount of air flowing through the said suction tube and means for controlling the flap valve in dependence on the detected air amount. Preferably, the measuring means comprise a Venturi constriction in the suction tube, a pneumatic-mechanical converter, and means actuating the converter in dependence on the pressure difference between the air pressure upstream, and the air pressure in the Venturi constriction at the narrowest cross sectional area of the latter.
摘要翻译： 一种用于外部点燃的内燃机的排气解毒系统，其具有至少一个进气抽吸管，其中通过从燃料计量装置计量到所述管燃料中产生燃料/空气混合物，并且其中所述燃料空气混合物在其之前 通过设置在所述吸入管中并根据特征性引擎数据可控的至少一个抽吸管的加热旁路可以进入发动机的气缸，通过提供， 组合地，用于检测流过所述吸入管的空气量的测量装置和根据检测到的空气量控制瓣阀的装置。 优选地，测量装置包括吸入管中的文氏管收缩部，气动 - 机械转换器，以及根据上游空气压力之间的压力差和在最狭窄横截面处文丘里收缩部中的空气压力来驱动转换器的装置 后者的区域。
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公开(公告)号：US4826082A
公开(公告)日：1989-05-02
申请号：US134266
申请日：1987-12-17
申请人： Max Greiner , Udo Hafner , Waldemar Hans , Heinrich Knapp , Wolfgang Kramer , Rudolf Krauss , Ferdinand Reiter , Peter Romann , Rudolf Sauer
发明人： Max Greiner , Udo Hafner , Waldemar Hans , Heinrich Knapp , Wolfgang Kramer , Rudolf Krauss , Ferdinand Reiter , Peter Romann , Rudolf Sauer
CPC分类号： F02M51/0632 , F02M51/0621 , F02M51/0689 , F02M51/0692 , F02M53/04 , F02M61/165 , F02M2051/08
摘要： An electromagnetically actuatable fuel injection valve which has an internal scavenging system for cleaning dirt particles from a magnetic field air gap. A portion of the fuel flowing in via an inflow line and an inflow opening reaches the vicinity of an air gap defined on one side by an armature and on the other by magnetic poles and flows through this gap, and then flows via an outflow opening to enter an outflow line that communicates with a fuel return. As a result of the described scavenging of the air gap, dirt particles are prevented from becoming firmly attached there and causing impairment of the performance of the fuel injection valve.
摘要翻译： 一种电磁致动燃料喷射阀，其具有用于从磁场空气间隙清洁污垢颗粒的内部扫气系统。 通过流入管路和流入口流入的燃料的一部分通过电枢到达一侧的气隙附近，另一方面通过磁极流过该间隙，然后通过流出口流入 进入与燃油回路连通的流出管路。 作为对间隙的清除的结果，防止了灰尘颗粒牢固地附着在其上并且导致燃料喷射阀的性能受损。
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