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公开(公告)号:US4065236A
公开(公告)日:1977-12-27
申请号:US623383
申请日:1975-10-17
申请人: Gerald Hofer , Gunter Bofinger , Heinz Nothdurft , Mohammad-Ali Khosrawi , Helmut Simon , Karl Konrath
发明人: Gerald Hofer , Gunter Bofinger , Heinz Nothdurft , Mohammad-Ali Khosrawi , Helmut Simon , Karl Konrath
CPC分类号: F02M41/126
摘要: The pump piston in a fuel injection pump is provided with longitudinal grooves which provide communication between the pressure chamber and the fuel supply chamber. An annular groove on the pump piston connects the longitudinal grooves so that communication between the pressure chamber and the fuel supply chamber is interrupted only after onset of the axial pressure stroke regardless of prior piston rotation.
摘要翻译: 燃料喷射泵中的泵活塞设置有提供压力室和燃料供应室之间的连通的纵向凹槽。 泵活塞上的环形槽连接纵向槽,使得压力室和燃料供应室之间的连通仅在轴向压力冲程开始之后才被中断,而与先前的活塞旋转无关。
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公开(公告)号:US5243943A
公开(公告)日:1993-09-14
申请号:US867109
申请日:1992-08-18
申请人: Gunter Bofinger , Heinz Nothdurft , Karl-Friedrich Russeler , Josef Hain , Hubertus Zedler , Manfred Narr-Hess , Remy Schmitt
发明人: Gunter Bofinger , Heinz Nothdurft , Karl-Friedrich Russeler , Josef Hain , Hubertus Zedler , Manfred Narr-Hess , Remy Schmitt
CPC分类号: F02M41/128 , F02D1/183 , F02D2001/186
摘要: 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.
摘要翻译: 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。
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公开(公告)号:US4430974A
公开(公告)日:1984-02-14
申请号:US417976
申请日:1982-09-14
申请人: Gunter Bofinger , Werner Faupel
发明人: Gunter Bofinger , Werner Faupel
CPC分类号: F02D1/025 , F02M41/126 , F02M59/447
摘要: A fuel injection pump for an internal combustion engine is proposed having an adjustment piston for the adjustment of the onset of the injection, on which an rpm-proportional fuel pressure determined by a pressure control valve and a pressure valve placed behind it and controllable in dependence on temperature acts. An adjustment device controls a full load stop for the limitation of the full-load fuel maximally injected by the fuel injection pump. The adjustment device has a movable piston for this purpose disposed movably in a work bore. The circumference of the piston is formed as a cam and is scanned by a scanner determining the position of the full load stop. The movable piston is acted on one side by the fuel pressure in the suction chamber and on the other side by a spring and by the fuel pressure between the pressure control valve and the pressure valve. This results in a compensation of the fuel pressure force at the movable piston, which is caused by the pressure valve.
摘要翻译: 提出了一种用于内燃机的燃料喷射泵,其具有用于调节喷射开始的调节活塞,由压力控制阀和位于其后面的压力阀确定的转速成比例的燃料压力依赖于其 温度上升。 调节装置控制全负荷停止,限制由燃料喷射泵最大程度地喷射的全负荷燃料。 调节装置具有用于该目的的可移动活塞,可移动地设置在工作孔中。 活塞的圆周形成为凸轮并且由扫描仪扫描以确定满载停止的位置。 可移动活塞通过吸入室中的燃料压力和另一侧由弹簧和压力控制阀与压力阀之间的燃料压力作用在一侧。 这导致由压力阀引起的可移动活塞处的燃料压力的补偿。
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公开(公告)号:US4615317A
公开(公告)日:1986-10-07
申请号:US729024
申请日:1985-04-30
申请人: Gunter Bofinger , Claus Maier
发明人: Gunter Bofinger , Claus Maier
摘要: An rpm governor for internal combustion engines having two cooperating levers pivotable about a shaft and engaged at one end by at least one governor spring and, counter to this force, by at least one rpm signal transducer is proposed. An idling spring engages one of the two levers, and its other end is adjustably disposed in the governor housing. As a result, a very fine idling adjustment is attainable, independently of the conventional governor springs, and so a "hole" in the engine torque during a transition from overrunning to loaded operation is avoided.
摘要翻译: 一种用于内燃机的转速调速器,其具有两个可围绕轴枢转的配合杆,其一端通过至少一个调速弹簧接合,并且与该力抵抗至少一个rpm信号换能器。 空转弹簧与两个杠杆中的一个接合,另一端可调节地设置在调速器壳体中。 结果,与传统的调速器弹簧无关,可以实现非常精细的怠速调节,因此避免了在从超速到装载操作的转变期间的发动机扭矩中的“孔”。
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公开(公告)号:US4975030A
公开(公告)日:1990-12-04
申请号:US347777
申请日:1989-04-21
申请人: Gunter Bofinger , Claus Maier , Gerhard Reichan
发明人: Gunter Bofinger , Claus Maier , Gerhard Reichan
IPC分类号: F02M41/12
CPC分类号: F02M41/126
摘要: A fuel injection pump for internal combustion engines comprising a pump plunger displaceable in a pump cylinder for delivering fuel to a plurality of injection locations, and elements for controlling fuel injection quantity. The controlling elements include a relief channel in the pump plunger for communicating a pump working space defined by the pump plunger with a relief chamber, an outlet port on an outer surface of the pump plunger for communicating the relief channel with the relief chamber, at least two connecting cross-sections of different shape for communicating the relief chamber with the outer port, and a slide valve displaceable along the outer surface of the plunger and having a control edge for controlling flow of fuel through the connecting cross-sections during a delivery stroke of the pump plunger.
摘要翻译: PCT No.PCT / DE87 / 00498 Sec。 371日期:1989年4月21日 102(e)日期1989年4月21日PCT提交1987年11月6日PCT公布。 出版物WO88 / 04726 日期:1988年6月30日。一种用于内燃机的燃料喷射泵,包括可在泵缸中移动的泵柱塞,用于将燃料输送到多个喷射位置,以及用于控制燃料喷射量的元件。 控制元件包括在泵柱塞中的用于将由泵柱塞限定的泵工作空间与释放室连通的释放通道,泵柱塞的外表面上的出口,用于将排泄通道与排放室连通,至少 用于将释放室与外部端口连通的不同形状的两个连接横截面,以及沿着柱塞的外表面可移动的滑动阀,并具有用于在输送冲程期间控制通过连接横截面的燃料流动的控制边缘 的泵柱塞。
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