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    • 2. 发明授权
    • Fuel injection apparatus for injecting a fuel mixture comprising at
least two components
    • 一种用于喷射包括至少两个部件的燃料混合物的燃料喷射装置
    • US4554903A
    • 1985-11-26
    • US585464
    • 1984-03-02
    • Max StraubelKlaus-Dieter Zimmermann
    • Max StraubelKlaus-Dieter Zimmermann
    • F02M43/02F02M39/00
    • F02M43/02
    • In the pump work chamber of a fuel injection pump, the main fuel delivered by a first metering valve is admixed with at least one further additional fluid by means of a second metering valve via a second inflow conduit. The two metering valves inserted into the inflow conduits and being electromechanically actuatable receive control pulses (I.sub.Z1, I.sub.Z2) dependent on operating characteristics (n, T, S, L) from an electric control unit. By means of the metering into the pump work chamber, the respective amounts of the fuel components are very well mixed or emulsified and pumped to the injection nozzle. The electric triggering of the metering valves enables a rapid adaptation from one stroke to another of the mixture ratio of the various fuel components to the instant operating condition of the internal combustion engine. A particularly advantageous feature is the use of a refill reservoir receiving the return-flow fuel quantity diverted at the end of supply and returning it to the pump work chamber before the next subsequent supply stroke begins, this refill chamber being connected to an overflow conduit controlled by an oblique control edge on the pump piston.
    • 在燃料喷射泵的泵工作室中,由第一计量阀输送的主燃料通过第二流入管道与第二计量阀与至少一个另外的附加流体混合。 插入到流入管道中并且可机电致动的两个计量阀根据来自电气控制单元的操作特性(n,T,S,L)接收控制脉冲(IZ1,IZ2)。 通过计量进入泵工作室,相应量的燃料组分非常好地混合或乳化并被泵送到喷嘴中。 计量阀的电触发使得能够从各种燃料部件的混合比率到内燃机的即时运行状态的一冲程迅速地适应。 特别有利的特征是使用补充储存器,其接收在供应结束时转向的返回流量燃料量,并且在下次随后的供给冲程开始之前将其返回到泵工作室,该再填充室连接到控制的溢流管道 通过泵活塞上的倾斜控制边缘。
    • 3. 发明授权
    • Method and apparatus for fuel injection in internal combustion engines
in particular diesel engines
    • 内燃机特别是柴油发动机燃油喷射的方法和装置
    • US4378775A
    • 1983-04-05
    • US277426
    • 1981-06-25
    • Max StraubelHermann EiseleKlaus-Dieter ZimmermannWilhelm Vogel
    • Max StraubelHermann EiseleKlaus-Dieter ZimmermannWilhelm Vogel
    • F02B3/06F02M57/02F02M59/26F02M59/36F02M39/00
    • F02M57/02F02M59/26F02M59/366F02B3/06
    • In the method according to the invention, the inlet pressure and the inlet cross section of the fuel pre-stored in the pump work chamber is constant, and it is solely the opening duration of an inlet valve which is electrically regulated. In addition, a shift in the instant of supply onset controlled in accordance with operating characteristics is attained by means of a variation in the return-flow fuel quantity. A shift in the instant of supply onset, which is undesired when there is a change in the quantity of fuel to be injected, is prevented by means of a simultaneously-effected correction of the return-flow fuel quantity. A fuel injection apparatus suitable for performing the method has, as the inlet valve, a magnetic valve which determines the quantity of fuel pre-stored in the pump work chamber. The rotary position of the pump piston is variable in order to shift or correct the instant of supply onset by means of an adjacent device actuated by an electromechanical adjustment element. An electric control device emitting the metering pulse and a control pulse is connected with a set-point transducer and an adjustment-path transducer of the adjustment device. The apparatus can be equipped with either a pump/nozzle or a normal piston injection pump supplying the injection nozzle via a pressure line, or with a distributor injection pump.
    • 在根据本发明的方法中,预先存储在泵工作室中的燃料的入口压力和入口横截面是恒定的,并且仅仅是电气调节的入口阀的打开持续时间。 此外,通过返回流量燃料量的变化来实现根据操作特性控制的供给开始时刻的变化。 通过同时进行的返回流量燃料量的校正来防止在待喷射燃料量发生变化时不期望的供应开始瞬间的变化。 适于执行该方法的燃料喷射装置具有作为入口阀的确定预先存储在泵工作室中的燃料量的电磁阀。 泵活塞的旋转位置是可变的,以便通过由机电调节元件致动的相邻装置移动或校正供给开始的时刻。 发射计量脉冲和控制脉冲的电气控制装置与调节装置的设定点换能器和调节路径换能器连接。 该装置可以配备有通过压力管线或分配器注射泵供应喷嘴的泵/喷嘴或普通活塞注射泵。
    • 4. 发明授权
    • Heating device for an atomic absorption spectrometer
    • 原子吸收光谱仪加热装置
    • US4653913A
    • 1987-03-31
    • US745737
    • 1985-06-17
    • Bernhard LersmacherPaul-Heinz PoqueKlaus-Dieter Zimmermann
    • Bernhard LersmacherPaul-Heinz PoqueKlaus-Dieter Zimmermann
    • G01N21/31G01N21/74
    • G01N21/74
    • In a heating device for atomic absorption spectrometers with electrothermal excitation of a sample, a tubular body for receiving the sample comprises a radial aperture (15) for introducing the sample at the central part of the tubular body. A pair of contacts (1, 2) can be cooled comprise current supplies (3), each consisting of a detachable upper part (5) and a fixed lower part (6) with the upper part and the lower part being connected together so as to be detachable. Each contact comprises an aperture (9) which is coaxial with the tubular body with the apertures extending partly in the upper part and partly in the lower part of the contacts and holding the ends of the tubular body. Damage and deformations of the contacts are avoided in that the diameters of the apertures (9), with the upper parts (5) laid flush on the lower parts (6), are shorter in the vertical direction than in the horizontal direction. The upper parts (5) of the apertures (9) each have a groove (12) which points upwards and extends parallel to the longitudinal axis of the apertures (9). On each end of the tubular bodies (11) a resilient clamping ring (10) is slid whose inside diameter is smaller than the outside diameter of the tubular body (11) and whose outside diameter corresponds to the apertures of the contacts (1, 2). The clamping ring comprises a vertical slot (13) at the area of the lower part (6). Alternatively instead of the clamping rings the ends of the tubular body (11) optionally comprise flanges (14) at its end and are surrounded by graphite foil.
    • 在用于具有电热激发样品的原子吸收光谱仪的加热装置中,用于接收样品的管状体包括用​​于将样品引入管状体的中心部分的径向孔(15)。 可以冷却一对触点(1,2),其包括电源(3),每个电源由可拆卸的上部(5)和固定的下部(6)组成,上部和下部连接在一起,以便 可拆卸 每个接触件包括与管状体同轴的孔口(9),孔口部分地部分地在接触件的上部部分延伸并且保持在管状体的端部。 避免了接触件的损伤和变形,因为上部(5)与下部件(6)齐平的孔(9)的直径在垂直方向上比在水平方向上更短。 孔(9)的上部(5)各自具有向上指向并平行于孔(9)的纵向轴线延伸的凹槽(12)。 在管状体(11)的每一端上,弹性夹紧环(10)滑动,其内径小于管状体(11)的外径,其外径对应于触头(1,2)的孔径 )。 夹紧环包括在下部(6)的区域处的垂直槽(13)。 或者代替夹紧环,管状体(11)的端部任选地在其端部包括凸缘(14)并被石墨箔包围。