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    • 3. 发明授权
    • Distributor-type fuel injection pump
    • 分配式燃油喷射泵
    • US06280160B1
    • 2001-08-28
    • US09202928
    • 1999-12-09
    • Heinz NothdurftNestor Rodriguez-AmayaAndreas DuttHubert Greif
    • Heinz NothdurftNestor Rodriguez-AmayaAndreas DuttHubert Greif
    • F04B3900
    • F02M59/466F02M41/1411
    • A fuel injection pump of the distributor type which has a reciprocatingly driven pump piston that is load-bearing in a rotating distributor shaft which pumps fuel out of a pump work chamber to various fuel injection valves via a distributor opening. To control the duration of high-pressure injection, an electrically actuated valve is provided with a valve member in a valve chamber that communicates with the pump work chamber and from a second valve chamber, communicates with a low-pressure region. To terminate the high-pressure injection, the valve member makes a communication between the two valve chambers, whereupon the outflow of the fuel stream is controlled by disposing a diameter constriction in the connecting line, thus reducing any tendency to cavitation.
    • 一种分配器类型的燃料喷射泵,其具有往复驱动的泵活塞,该活塞在旋转的分配器轴中承载,其经由分配器开口将燃料从泵工作室泵出到各种燃料喷射阀。 为了控制高压喷射的持续时间,电动阀在阀室中设置有与泵工作室连通的阀构件,并且与第二阀室连通,与低压区连通。 为了终止高压喷射,阀构件在两个阀室之间进行连通,由此通过在连接管线中设置直径收缩来控制燃料流的流出,从而减少空化的倾向。
    • 6. 发明授权
    • Fuel injection pump
    • 燃油喷射泵
    • US5243943A
    • 1993-09-14
    • US867109
    • 1992-08-18
    • Gunter BofingerHeinz NothdurftKarl-Friedrich RusselerJosef HainHubertus ZedlerManfred Narr-HessRemy Schmitt
    • Gunter BofingerHeinz NothdurftKarl-Friedrich RusselerJosef HainHubertus ZedlerManfred Narr-HessRemy Schmitt
    • F02D1/18F02M41/12
    • F02M41/128F02D1/183F02D2001/186
    • A distributor-type fuel injection pump is provided with a hydraulic injection adjusting mechanism whose injection adjusting piston adjusts the cam gear unit for driving the pump plunger to execute strokes corresponding to the desired position of the start of injection. The injection adjusting piston defines a control space on one side and a spring space receiving a return spring on the other side. The control space is connected via a throttle bore with the pump interior space which is filled with fuel by a delivery pump. The fuel pressure is adjusted by a pressure control valve. To prevent unstable pressure vibrations on the injection adjusting piston, which leads to defects in the operation of the fuel injection pump, the spring space is connected on one side with the suction side of the delivery pump via a first throttle and on the other side with the pressure side of the delivery pump via a second throttle having a smaller throttle cross section.
    • PCT No.PCT / DE90 / 00908 Sec。 371日期:1992年8月18日 102(e)日期1992年8月18日PCT 1990年11月24日PCT PCT。 WO91 / 10056 PCT公开号 1991年7月11日,分配式燃油喷射泵设有液压喷射调节机构,其喷射调节活塞调节用于驱动泵柱塞的凸轮齿轮单元,以执行对应于注射开始期望位置的冲程。 注射调节活塞在一侧限定一个控制空间,另一侧限定弹簧空间,该弹簧空间容纳复位弹簧。 控制空间通过节流孔与泵内部空间连接,泵内部空间由输送泵填充燃料。 燃油压力由压力控制阀调节。 为了防止喷射调节活塞上的不稳定的压力振动,这导致燃料喷射泵的操作的缺陷,弹簧空间通过第一节气门在一侧与输送泵的吸力侧连接,另一侧与 输送泵的压力侧经由具有较小节流横截面的第二节流阀。
    • 8. 发明授权
    • Testing device for injection pumps
    • 注射泵检测装置
    • US4214476A
    • 1980-07-29
    • US37453
    • 1979-05-09
    • Claus KosterJoachim SiegertHeinz Nothdurft
    • Claus KosterJoachim SiegertHeinz Nothdurft
    • F02M65/00G05D23/22G01M19/00
    • F02M65/00G05D23/22
    • The device for testing the nozzles of injection pumps includes a temperature-responsive element arranged in the return-flow conduit of the injection pump and connected to the input of a control device the output of which controls two solenoid-operated 4/2 directional control valves which alternately open or close the feeding port to the intake conduit of the pump under test. The test liquid which is alternately delivered into the intake conduit by means of two delivery pumps from two containers storing the test liquid at different temperatures. When the temperature of the test liquid discharged by the overflow valve in the injection pump exceeds an upper limit (for example 55.degree. C.), the control valve through which the warmer test liquid is supplied is closed and the other valve delivers the cooler test liquid into the injection pump. Similarly, when the temperature of the overflow drops below the limit value, the delivery of the test liquid is switched over to take place from the warmer container. In this manner it is possible to keep the temperature of the test fluid in the injection pump constant and the reproducibility of the injection test is considerably improved.
    • 用于测试喷射泵的喷嘴的装置包括温度响应元件,该温度响应元件布置在喷射泵的回流管道中并且连接到控制装置的输入端,控制装置的输出控制两个电磁操作的4/2方向控制阀 其将进料口交替地打开或关闭到被测泵的进气管道。 测试液体通过两个输送泵交替地输送到进气管道中,两个输送泵从不同温度下储存测试液体的两个容器中排出。 当喷射泵中的溢流阀排出的试验液体的温度超过上限(例如55℃)时,供给较温的试验液的控制阀关闭,另一个阀提供冷却器试验 液体进入注射泵。 类似地,当溢流温度下降到极限值以下时,切换出试验液从更暖的容器中进行。 以这种方式,可以将注射泵中的测试流体的温度保持恒定,并且注入测试的再现性显着提高。