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公开(公告)号：US5086742A
公开(公告)日：1992-02-11
申请号：US726112
申请日：1991-06-21
申请人： Hans-Jorg Vogtmann
发明人： Hans-Jorg Vogtmann
CPC分类号： F02M41/126 , F02D1/04 , F02D1/125 , F02M45/00
摘要： For the sake of improving quiet operation during idling and at low partial load by lengthening the injection duration, a fuel injection pump for internal combustion engines has a relief conduit originating in a pump work chamber, the relief conduit including a throttle and being blockable at upper partial load, full load and openable by a control slide. The relief conduit is controlled by a pressure maintenance valve, the opening pressure of which can be adapted from outside to the opening pressure of injection nozzles. The control slide is controlled by a centrifugal governor in such a manner that at idling and lower partial load. The control slide is shifted by the pressure in a fuel low-pressure chamber into its operating position that uncovers the relief conduit, and at upper partial load, full load and starting, the control slide is disconnected from the low-pressure chamber, so that it can drop back into its basic position that blocks off the relief conduit.
摘要翻译： 为了通过延长注射持续时间来改善怠速和低部分负荷期间的静音操作，用于内燃机的燃料喷射泵具有源自泵工作室的释放导管，该释放导管包括节气门并可在上部阻塞 部分负载，满载并可由控制滑块打开。 泄压管由压力维持阀控制，压力维持阀的开启压力可以从外部喷射到喷嘴的打开压力。 控制滑块由离心调速器以空转和较低部分负载的方式控制。 控制滑块通过燃料低压室中的压力移动到其露出释放导管的操作位置，并且在上部分负载满载和启动时，控制滑块与低压室断开，使得 它可以回到其基本位置，从而阻止卸压管道。
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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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公开(公告)号：US4870936A
公开(公告)日：1989-10-03
申请号：US136806
申请日：1987-12-22
IPC分类号： F02M41/12
CPC分类号： F02M41/126
摘要： A fuel injection pump of the distributor type in which a pump piston is driven to reciprocate and rotate simultaneously, thereby acting as a distributer. For fuel injection quantity regulation, an annular slide that is displaceable on a pump piston is provided, by way of which the pump work chamber can be relieved. To attain a low injection rate in the idling range, in addition to a first outlet opening, controlled by an upper edge of the annular slide, second outlet openings axially offset from the first are provided, for a relief conduit of the pump work chamber which cooperate with a radial control opening, which communicates with the pump suction chamber and is disposed in the wall of the annular slide. In the opening direction of this control opening, a groove provided with a throttle is provided, by way of which during idling operation, prior to the opening of the first relief opening, fuel can flow out of the pump piston in order to decrease the pumping rate of the pump piston. For higher load ranges, the control opening is moved out of the operative range of the groove which is effected by rotating the annular slide or interrupting the communication of the control opening with the suction chamber.
摘要翻译： 一种分配器类型的燃料喷射泵，其中泵活塞被驱动以同时往复运动并旋转，从而用作分配器。 对于燃料喷射量调节，提供可在泵活塞上移动的环形滑块，借此可以释放泵工作室。 为了在怠速范围内获得低喷射率，除了由环形滑动件的上边缘控制的第一出口开口之外，还提供了与第一出口开口轴向偏离的第二出口，用于泵工作室的释放导管， 配合径向控制开口，该径向控制开口与泵抽吸室连通并设置在环形滑块的壁中。 在该控制开口的打开方向上，设置有节气门的槽，通过该槽在空转操作期间，在第一排气口打开之前，燃料可以从泵活塞流出以减少泵送 泵活塞的速率。 对于较高的负载范围，控制开口移动到通过旋转环形滑块或中断控制开口与吸入室的连通来实现的槽的操作范围之外。
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公开(公告)号：US4733645A
公开(公告)日：1988-03-29
申请号：US859541
申请日：1986-05-05
CPC分类号： F02D1/025 , F02M41/126 , F02M59/447 , F02D2001/186
摘要： A fuel injection pump for internal combustion engines which has an rpm-proportional injection onset adjusting device, a pressure control valve controlling the supply pressure (phd f), a cold-start acceleration device having a pressure valve associated with the pressure control valve, and a full-load stop, controlled by an adjustment device, for limiting the maximum full-load quantity injected by the fuel injection pump. The adjustment device has a piston, which is acted upon on one end by the supply pressure in the suction chamber of the injection pump and on the other end by a pressure (p.sub.a) that is made to differ from the supply pressure by means of two separate throttles. The two throttles have the effect that if the pressure valve is closed, the adaptation device is subjected to a differential pressure which is approximately equal to that when the pressure valve is opened, and so the full-load courses attained in normal operation and in cold operation are virtually identical.
摘要翻译： 一种用于内燃机的燃料喷射泵，其具有rpm比例喷射开始调节装置，控制供应压力的压力控制阀（phd f），具有与压力控制阀相关联的压力阀的冷启动加速装置，以及 由调节装置控制的全负载停止，用于限制由燃料喷射泵喷射的最大满载量。 调节装置具有活塞，该活塞通过喷射泵的吸入室内的供给压力而作用在另一端，另一端由与供给压力不同的压力（pa）通过两个 单独的节流。 两个节流阀的作用是，如果压力阀关闭，则适配装置受到的压差近似等于压力阀打开时的压差，因此在正常运行和冷态下达到满载运行 操作几乎相同。
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公开(公告)号：US4733640A
公开(公告)日：1988-03-29
申请号：US857665
申请日：1986-04-30
申请人： Helmut Laufer , Max Straubel
发明人： Helmut Laufer , Max Straubel
CPC分类号： F02M63/0205 , F02M41/124 , F02M41/126 , F02M41/128
摘要： A fuel injection pump for internal combustion engines is described, which for controlling fuel quantity is provided with control unit that controls an electric final control element, which in turn actuates the regulating member that determines the fuel injection quantity per pump piston supply stroke. The supply of fuel to the pump work chamber is effected from a fuel supply chamber, which is kept at a controlled pressure by a fuel feed pump. To limit the maximum speed of the engine supplied by the fuel injection pump in the event of failure of the control unit, a valve is provided in the intake line of the fuel feed pump. Using this valve, the flow cross section of the intake line can be varied or closed. By means of the modification of the fuel pressure in the fuel supply chamber effected thereby, a control of the fuel injection quantity that is not dependent on the position of the quantity-determining member is attained.
摘要翻译： 描述了一种用于内燃机的燃料喷射泵，用于控制燃料量的控制单元设置有控制单元，该控制单元控制电动最终控制元件，该控制单元又致动调节构件，该调节构件确定每个泵活塞供应冲程的燃料喷射量。 向泵工作室供给燃料由燃料供给室进行，燃料供给室通过燃料供给泵保持受控制的压力。 为了在控制单元发生故障的情况下限制由燃料喷射泵供给的发动机的最大速度，在燃料供给泵的进气管路中设置有阀。 使用该阀，可以改变或关闭进气管线的流动横截面。 通过对由此实现的燃料供给室中的燃料压力的修改，可以获得不依赖于数量决定部件的位置的燃料喷射量的控制。
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6.发明授权
公开(公告)号：US4655183A
公开(公告)日：1987-04-07
申请号：US775125
申请日：1985-09-12
申请人： Shigeo Taira , Toru Ishibashi
发明人： Shigeo Taira , Toru Ishibashi
CPC分类号： F02M41/125 , F02M41/126 , F02M59/08 , F02M59/366
摘要： A distributor-type fuel injection pump for an internal combustion engine wherein the plunger has first and second portions with different diameters from each other, defining first and second pump working chambers, respectively. A communication passageway is arranged for communicating the second pump working chamber with fuel delivery passageways leading to respective fuel injection valves of the engine. A drain passageway is arranged for communicating the communication passageway with a zone under a lower pressure of the pump, and is selectively closed and opened by a selector valve. An electronic control unit is responsive to operating conditions of the engine for driving the selector valve to selectively assume closed and open positions. Fuel is pressure delivered to the fuel injection valves from one or both of the first and second pump working chambers, depending upon whether the selector valve assumes the closed position or the open position. The pump is so constructed that the plunger has an increased delivery stroke, when the selector valve is controlled by the control means to assume a predetermined one of the closed position and the open position and at the same time the control sleeve assumes a predetermined position relative to the plunger.
摘要翻译： 一种用于内燃机的分配器式燃料喷射泵，其中柱塞具有分别具有彼此不同直径的第一和第二部分，分别限定第一和第二泵工作室。 连通通道被设置成使第二泵工作室与通向发动机的各个燃料喷射阀的燃料输送通道连通。 排水通道被布置成用于使连通通道与泵的较低压力下的区域连通，并且由选择阀选择性地关闭和打开。 电子控制单元响应于发动机的操作条件来驱动选择阀以选择性地采取闭合和打开位置。 燃料是根据选择阀是处于关闭位置还是打开位置，将压力从第一和第二泵工作室中的一个或两个输送到燃料喷射阀。 该泵被构造成使得柱塞具有增加的输送行程，当选择阀由控制装置控制以呈现关闭位置和打开位置中的预定的一个时，并且同时控制套筒呈现相对于预定位置 到柱塞。
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公开(公告)号：US4611563A
公开(公告)日：1986-09-16
申请号：US678009
申请日：1984-11-30
申请人： Manfred Bauer
发明人： Manfred Bauer
CPC分类号： F02M41/126 , F02M41/125 , F02M59/34
摘要： A fuel injection pump for self-igniting internal combustion engines includes a displaceable control slide which is operative for blocking a relief conduit provided in the pump for controlling an outflow of a partial quantity of fuel in the pump for affecting the injection time. The control slide is arbitrarily displaceable by a rocker lever which is actuated by a driver by an adjusting lever positioned outside the pump.
摘要翻译： 一种用于自燃内燃机的燃油喷射泵包括可移动的控制滑块，其可操作用于阻塞设置在泵中的释放导管，用于控制泵中部分量的燃料的流出以影响喷射时间。 控制滑块可以通过由位于泵外部的调节杆由驾驶员驱动的摇杆来任意移动。
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公开(公告)号：US4594979A
公开(公告)日：1986-06-17
申请号：US668807
申请日：1984-11-06
申请人： Seishi Yasuhara
发明人： Seishi Yasuhara
IPC分类号： F02D41/04 , F02D41/00 , F02D41/12 , F02D41/24 , F02D41/40 , F02M41/12 , F02M65/00 , F02D31/00
CPC分类号： F02D41/28 , F02D41/123 , F02M41/126 , F02M65/005
摘要： A fuel injection pump serves to inject fuel into an engine. A movable member adjustably determines the rate of fuel injection into the engine. The fuel injection rate depends on the position of the movable member. A critical position of the movable member defines the boundary between a fuel injection enabling range and a fuel injection disabling range. This critical position is measured. An operating condition of the engine is sensed. The movable member is then controlled on the basis of the measured engine operating condition and the measured critical position.
摘要翻译： 燃料喷射泵用于将燃料喷射到发动机中。 可移动部件可调节地确定燃料喷射到发动机中的速率。 燃料喷射率取决于可动部件的位置。 可动构件的临界位置限定了燃料喷射使能范围和燃料喷射禁用范围之间的边界。 测量这个临界位置。 感测发动机的运行状态。 然后根据所测量的发动机工作条件和所测量的临界位置来控制可动构件。
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公开(公告)号：US4567868A
公开(公告)日：1986-02-04
申请号：US650885
申请日：1984-09-17
申请人： Seishi Yasuhara
发明人： Seishi Yasuhara
CPC分类号： F02M41/126 , F02M45/06 , F02B2075/027
摘要： In a fuel injection system, as an engine crankshaft rotates twice, a working chamber contracts and expands a number of times equal to twice the number of engine combustion chambers. Each time the working chamber expands, fuel is conducted to the working chamber. During alternate contractions of the working chamber, fuel is directed from the working chamber toward each of the combustion chambers in sequence to be injected thereinto at a first timing. During the intervening contractions of the working chamber, fuel is directed from the working chamber toward each of the combustion chambers in sequence to be injected thereinto at a second timing. The second timing follows the first timing by a fraction of at least one operating stroke of the engine. In another fuel injection system of this invention, fuel is periodically injected into an engine combustion chamber at a first timing with respect to rotation of the engine crankshaft. Fuel is also periodically injected into the combustion chamber at a second timing with respect to rotation of the crankshaft. The quantity of fuel injected at the first timing increases to a preset maximum level as the quantity of fuel injected at the second timing increases to a predetermined level. The first timing fuel quantity remains at the preset maximum level as the second timing fuel quantity increases from the predetermined level.
摘要翻译： 在燃料喷射系统中，当发动机曲轴旋转两次时，工作室收缩并膨胀等于发动机燃烧室数量的两倍。 每次工作室膨胀时，燃料被传导到工作室。 在工作室的交替收缩期间，燃料依次从工作室朝向每个燃烧室引导以在第一时间被注入。 在工作室的中间收缩期间，燃料依次从工作室朝向每个燃烧室被引导到第二时间。 第二时间是按照发动机的至少一个操作冲程的一小部分的第一时间。 在本发明的另一种燃料喷射系统中，相对于发动机曲轴的旋转的第一定时，燃料被周期性地喷射到发动机燃烧室中。 在相对于曲轴的旋转的第二定时，燃料也周期性地向燃烧室中喷射。 当在第二定时喷射的燃料量增加到预定水平时，在第一定时喷射的燃料量增加到预设的最大水平。 随着第二定时燃料量从预定水平增加，第一正时燃料量保持在预设最大水平。
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公开(公告)号：US4501140A
公开(公告)日：1985-02-26
申请号：US428221
申请日：1982-09-29
IPC分类号： G01F1/00 , F02B3/06 , F02D21/08 , F02D35/00 , F02D41/40 , F02M41/12 , F02M55/00 , F02M65/00 , G01F1/708 , G01F9/00 , F02M59/00
CPC分类号： G01F1/7088 , F02D41/408 , F02M41/126 , F02M55/00 , F02M65/005 , F02B3/06 , F02D41/0065 , F02M55/007 , Y02T10/44
摘要： A fuel injection rate deducing system for a diesel engine includes a fuel injection pump and a fuel feed pump. The injection pump has an inlet, an outlet, and an overflow outlet. The outlet is connected to the engine to conduct fuel from the injection pump to the engine to effect fuel injection. The overflow outlet is internally connected to the inlet. A fuel feed line is connected to the inlet to conduct fuel to the injection pump. The feed pump is disposed in the feed line to drive fuel into the injection pump via the feed line. A fuel return line connects the overflow outlet to the feed line at a position upstream of the feed pump. At least some of the fuel conducted to the injection pump via the inlet exits from the injection pump via the overflow outlet and then all enters the feed pump via the return line and the feed line. A flowmeter measures the rate of fuel flow through the feed line upstream of the connection of the return line to the feed line. The measured results are used to indicate the rate of fuel injection via the injection pump.
摘要翻译： 柴油发动机的燃料喷射率推算系统包括燃料喷射泵和燃料供给泵。 注射泵具有入口，出口和溢流出口。 出口连接到发动机以将燃料从喷射泵引导到发动机以实现燃料喷射。 溢流出口内部连接到入口。 燃料供给管线连接到入口以将燃料引导到注射泵。 进料泵设置在进料管线中，以通过进料管线将燃料驱动到喷射泵中。 燃料回流管线在供给泵的上游位置将溢流出口连接到进料管线。 经由入口传导到注射泵的至少一些燃料经由溢流出口从注射泵排出，然后经由返回管线和进料管线进入进料泵。 流量计测量通过返回管线连接到进料管线上游的进料管线的燃料流量。 测量结果用于指示通过喷射泵的燃油喷射速率。
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