Fuel injection pump for internal combustion engines
    1.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号:US5396871A

    公开(公告)日:1995-03-14

    申请号:US211527

    申请日:1994-04-05

    摘要: A fuel injection pump for internal combustion engines, having a pump piston that moves in a cylinder liner and defines a pump work chamber with the cylinder. The piston has two control edges that cooperate with a control opening in the cylinder liner. One, control edge is oblique, disposed on the jacket face and communicates continuously with the pump work chamber which controls the end of supply. A first upper control edge formed by the face end of the pump piston, controls the supply onset upon overtaking the control opening. For a load- and temperature-dependent shift of the supply onset toward early, the face end of the pump piston has a first region (B), axially indented in the direction of the cam drive, forming a second control edge, which is separated from the flat region (A) on the face end by a longitudinal groove and in the first region a second region (C), indented via shoulders is disposed in turn in the direction of the cam drive, with a third control edge.

    摘要翻译: PCT No.PCT / DE93 / 00641 Sec。 371日期1994年04月5日 102(e)日期1994年4月5日PCT提交1993年7月21日PCT公布。 公开号WO94 / 03722 日期1994年2月17日。一种用于内燃机的燃料喷射泵,具有在气缸套中移动并且与气缸限定泵工作室的泵活塞。 活塞具有与气缸套中的控制开口配合的两个控制边缘。 一个,控制边缘是倾斜的,设置在护套表面上,并与控制供应结束的泵工作室连续连通。 由泵活塞的表面端形成的第一上控制边缘在超过控制开口时控制供应开始。 对于供应开始朝向早期的负载和温度相关的变化,泵活塞的表面端具有沿凸轮驱动方向轴向缩进的第一区域(B),形成第二控制边缘,该第二控制边缘被分离 通过纵向槽从平面区域(A)的端部延伸,并且在第一区域中具有第二区域(C),凹凸的通孔肩部沿着凸轮驱动的方向依次设置有第三控制边缘。

    Fuel pump control valve assembly
    2.
    发明授权
    Fuel pump control valve assembly 失效
    燃油泵控制阀总成

    公开(公告)号:US5954487A

    公开(公告)日:1999-09-21

    申请号:US911819

    申请日:1997-08-15

    摘要: A fuel pump for a vehicular diesel fuel pump member having a control valve assembly which includes a housing having a control valve chamber, and an actuatable control valve disposed in the control valve chamber. The control valve includes a piston valve body axially movable over a motion displacement interval between first and second positions. The motion displacement interval is defined by first and second sub-intervals bounded by the first and second positions, respectively. The control valve assembly further includes means for actuating the control valve. A valve stop is disposed in the housing adjacent the control valve chamber, and a piston valve body seat contacts the valve stop whenever the piston valve body is in the second position. The piston valve body seat contacts a pump body seating surface whenever the piston valve body is in the first position. A first control valve spring resiliently biases the piston valve body toward the unactuated position whenever the piston valve body is in the first sub-interval. A second control valve spring resiliently biases the piston valve body into damped engagement with the valve stop whenever the piston valve body is in the second sub-interval.

    摘要翻译: 一种用于车辆柴油燃料泵构件的燃料泵,其具有包括具有控制阀室的壳体和设置在所述控制阀室中的致动控制阀的控制阀组件。 控制阀包括可在第一和第二位置之间的运动位移间隔上轴向移动的活塞阀体。 运动位移间隔由分别由第一和第二位置限定的第一和第二子区间限定。 控制阀组件还包括用于致动控制阀的装置。 阀门与壳体相邻设置在控制阀室内,只要活塞阀体处于第二位置,活塞阀体阀座与阀门停止接触。 每当活塞阀体处于第一位置时,活塞阀体座接触泵本体座面。 每当活塞阀体处于第一次间隔时,第一控制阀弹簧弹性地将活塞阀体朝向未致动位置偏压。 每当活塞阀体处于第二次间隔时,第二控制阀弹簧弹性地将活塞阀体偏压到阀止挡件上。

    Fuel injection system for Diesel engines, in particular for Diesel motor
vehicle engines
    3.
    发明授权
    Fuel injection system for Diesel engines, in particular for Diesel motor vehicle engines 失效
    用于柴油发动机的燃油喷射系统,特别是柴油发动机

    公开(公告)号:US4384560A

    公开(公告)日:1983-05-24

    申请号:US104212

    申请日:1979-12-17

    摘要: A fuel injection system is proposed for Diesel type internal combustion engines, by means of which the ignition conditions of a Diesel engine are kept optimal even during operation at high altitudes despite a reduced air charge. The system includes a fuel injection pump equipped with an injection timing adjustment apparatus which functions in accordance with rpm and a control apparatus functions in accordance with the air quantity supplied to the engine. By means of the control apparatus, a correction controlled in accordance with air pressure and therefore dependent on air quantity is superimposed on the change in the onset of the fuel supply controlled by the injection adjuster at least in accordance with rpm. When a hydraulic injection adjuster is used, the supply pressure of a control pump is increased by a correcting final control element of the control apparatus when the air quantity is decreasing in the direction toward an early adjustment of the onset of supply.

    摘要翻译: 提出了一种用于柴油机型内燃机的燃油喷射系统,即使在高空作业下,柴油发动机的点火条件仍然保持最佳,尽管气流减少。 该系统包括配备有根据rpm起作用的喷射定时调节装置的燃料喷射泵,并且控制装置根据供应给发动机的空气量而起作用。 通过控制装置,根据空气压力并因此依赖于空气量控制的校正与至少根据转速控制的喷射调节器控制的燃料供应开始的变化重叠。 当使用液压喷射调节器时,当空气量在供应开始的早期调节的方向上减小时,通过控制装置的校正最终控制元件来增加控制泵的供应压力。

    Method and apparatus for injecting fuel to attain a smooth combustion in
a combustion engine
    4.
    发明授权
    Method and apparatus for injecting fuel to attain a smooth combustion in a combustion engine 失效
    用于喷射燃料以在内燃机中获得平稳燃烧的方法和装置

    公开(公告)号:US4633836A

    公开(公告)日:1987-01-06

    申请号:US548043

    申请日:1983-11-02

    申请人: Werner Faupel

    发明人: Werner Faupel

    摘要: A method and apparatus for injecting fuel directly into the combustion chambers of an internal combustion engine in which a hydraulic threshold switch is provided which detects the pressure reversal of the pressure course at the end of fuel pumping by a fuel injection pump to a fuel injection valve; upon the attainment of a threshold value of the decreasing pressure, fuel is diverted into a relief chamber to effect a rapid decrease of pressure.

    摘要翻译: 一种用于将燃料直接喷射到内燃机的燃烧室中的方法和装置,其中设置有液压阈值开关,其检测在燃料喷射泵向燃料喷射阀的燃料泵送结束时的压力进程的压力反转 ; 在获得降低的压力的阈值时,燃料被转移到释放室中以实现压力的快速降低。

    Fuel injection pump for internal combustion engines
    5.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号:US4430974A

    公开(公告)日:1984-02-14

    申请号:US417976

    申请日:1982-09-14

    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。

    Fuel injection pump
    6.
    发明授权
    Fuel injection pump 失效
    燃油喷射泵

    公开(公告)号:US4273090A

    公开(公告)日:1981-06-16

    申请号:US844933

    申请日:1977-10-25

    CPC分类号: F02M41/128 F02D1/183 F02B3/06

    摘要: A fuel injection pump for Diesel engines in which a rotating and reciprocating piston pressurizes and distributes fuel to individual pressure lines leading to the injection valves of the engine. In order to change the timing of injection with respect to the engine cycle, there is provided a mechanism to change the relative angle between the pressurizing piston and its drive means, which runs in synchronism with the engine. The mechanism operates hydraulically and is affected by the fuel pressure in the sump of the injection pump. There is also provided a hydraulic control valve mechanism which permits varying amounts of fuel to flow back from the sump to the low pressure side of the fuel delivery pump, thereby changing the injection timing. A primary control valve adjusts the sump pressure on the basis of engine speed while a secondary control valve adjusts the sump pressure on the basis of engine temperature in order to adapt the timing of fuel injection to engine starting and engine warm-up. Various embodiments are presented.

    摘要翻译: 一种用于柴油发动机的燃料喷射泵,其中旋转和往复活塞将燃料加压并分配到通向发动机的喷射阀的各个压力管线。 为了改变相对于发动机循环的喷射时间,提供了一种改变加压活塞与其与发动机同步运行的驱动装置之间的相对角度的机构。 该机构液压操作并受到注射泵的油槽中的燃料压力的影响。 还提供了一种液压控制阀机构,其允许不同量的燃料从燃料输送泵的贮槽向低压侧回流,由此改变喷射正时。 主控制阀基于发动机转速来调节油底壳压力,而二次调节阀根据发动机温度来调节油底壳压力,以便使燃料喷射的时间适应于发动机起动和发动机预热。 呈现各种实施例。

    Fuel-injection pump for internal-combustion engines
    7.
    发明授权
    Fuel-injection pump for internal-combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号:US5638793A

    公开(公告)日:1997-06-17

    申请号:US569775

    申请日:1995-12-08

    IPC分类号: F02M59/26 F02M37/04 F04B7/04

    CPC分类号: F02M59/265

    摘要: A fuel injection pump for internal combustion engines in which to control the fuel injection quantities with the internal combustion engine cold, a first control edge is provided. For controlling the start of fuel injection with the internal combustion engine hot, a second control edge and a third control edge are provided. Assigned to respective control edges are provided a first and second oblique control edge, by means of which an effective pump piston feed stroke is controlled according to the rotary position of the pump piston. To switch off the internal combustion engine, in the region of transition from the first control edge to the second control edge the assignment of this second control edge to the second oblique control edge is provided in such a way that injection ceases on account of an overlap with a control port. This measure is assisted by an additional longitudinal groove which, in this rotary position, is in overlap with an additional control port, this additional longitudinal groove being the extension of a longitudinal groove, via which a pump working space is relieved during the operation of the internal combustion engine and after a reopening of the control ports by the oblique control edges.

    摘要翻译: 一种用于内燃机的燃料喷射泵,其中用于控制内燃机冷却的燃料喷射量,提供第一控制边缘。 为了控制内燃机的燃料喷射的开始热,提供第二控制边缘和第三控制边缘。 分配给相应控制边缘的第一和第二倾斜控制边缘通过泵活塞的旋转位置来控制有效的泵活塞进给行程。 为了关闭内燃机,在从第一控制边缘到第二控制边缘的转变区域中,这种第二控制边缘到第二倾斜控制边缘的分配被提供,使得注入由于重叠而停止 与控制端口。 该措施由附加的纵向槽辅助,该纵向槽在该旋转位置与附加的控制端口重叠,该附加的纵向槽是纵向槽的延伸部,通过该纵向槽在泵的运行期间减轻泵的工作空间 内燃机和通过倾斜控制边缘重新打开控制端口之后。

    Fuel injection pump for internal combustion engines
    8.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号:US4635605A

    公开(公告)日:1987-01-13

    申请号:US740139

    申请日:1985-06-03

    CPC分类号: F02M45/06 F02M41/126

    摘要: A fuel injection pump of the distributor type is proposed, in which the injection quantity is controlled by controlling the first outlet cross section D of a first relief line and the stroke-offset outlet C of a second relief line for the pump work chamber of the fuel injection pump by means of a control edge that is variable in accordance with load and/or rpm. To attain nonsupply of fuel within the intended supply stroke of the pump piston during idling and at low partial load, communication between the first and second relief lines is provided. The communication exists only for the duration of a predetermined stroke portion (h.sub.e) and is additionally controlled in accordance with load and/or rpm by controlling the following outlet of the second relief line, so that from a predetermined upper load range to full-load operation, the entire fuel quantity pumped by the pump piston over the effective supply stroke does in fact become injected.

    摘要翻译: 提出了一种分配器类型的燃料喷射泵,其中通过控制第一泄放线的第一出口横截面D和用于泵工作室的第二泄放线的行程偏移出口C来控制喷射量 燃料喷射泵通过根据负载和/或rpm可变的控制边缘。 为了在怠速期间和在低部分负载期间在泵活塞的预期供应冲程内获得燃料不足,提供第一和第二救生线之间的连通。 通信仅在预定行程部分的持续时间内存在,并且通过控制第二救生线的后续出口,根据负载和/或转速额外地控制,使得从预定的上负载范围到满载 实际上,通过泵活塞泵送的有效供给冲程的整个燃料量实际上被注入。

    Fuel injection pump
    9.
    发明授权
    Fuel injection pump 失效
    燃油喷射泵

    公开(公告)号:US4395990A

    公开(公告)日:1983-08-02

    申请号:US260475

    申请日:1981-05-04

    CPC分类号: F02M41/128 F02D1/183 F02B3/06

    摘要: A fuel injection pump for Diesel engines in which a rotating and reciprocating piston pressurizes and distributes fuel to individual pressure lines leading to the injection valves of the engine. In order to change the timing of injection with respect to the engine cycle, there is provided a mechanism to change the relative angle between the pressurizing piston and its drive means, which runs in synchronism with the engine. The mechanism operates hydraulically and is affected by the fuel pressure in the sump of the injection pump. There is also provided a hydraulic control valve mechanism which permits varying amounts of fuel to flow back from the sump to the low pressure side of the fuel delivery pump, thereby changing the injection timing. A primary control valve adjusts the sump pressure on the basis of engine speed while a secondary control valve adjusts the sump pressure on the basis of engine temperature in order to adapt the timing of fuel injection to engine starting and engine warm-up. Various embodiments are presented.

    摘要翻译: 一种用于柴油发动机的燃料喷射泵,其中旋转和往复活塞将燃料加压并分配到通向发动机的喷射阀的各个压力管线。 为了改变相对于发动机循环的喷射时间,提供了一种改变加压活塞与其与发动机同步运行的驱动装置之间的相对角度的机构。 该机构液压操作并受到注射泵的油槽中的燃料压力的影响。 还提供了一种液压控制阀机构,其允许不同量的燃料从燃料输送泵的贮槽向低压侧回流,由此改变喷射正时。 主控制阀基于发动机转速来调节油底壳压力,而二次调节阀根据发动机温度来调节油底壳压力,以便使燃料喷射的时间适应于发动机起动和发动机预热。 呈现各种实施例。

    Fuel injection pump
    10.
    发明授权
    Fuel injection pump 失效
    燃油喷射泵

    公开(公告)号:US4905640A

    公开(公告)日:1990-03-06

    申请号:US317503

    申请日:1989-03-01

    IPC分类号: F02D1/18 F02M59/46 F02M63/00

    CPC分类号: F02M59/46 F02D1/183 F02M63/00

    摘要: A pressure control valve is connected at one end with a suction chamber and with increasing pressure in the suction chamber shifts the instant of injection to early. A pressure relief line connects between a restoring chamber in the pressure control chamber with a pressure maintenance valve. The pressure maintenance valve includes a valve insert comprising a valve cylinder in which a compression spring-loaded valve body is disposed. The valve body has a sealing face that closes the pressure relief line. The diameter of the pressure relief line is smaller than the valve cylinder diameter. The diameter of the pressure relief line is selected such that the suction chamber pressure present at the sealing face moves the valve body away from the valve seat counter to the force of a compression spring contacting the valve body and opens up a pressure relief line leading onward. After the lifting of the valve body from the pressure relief line, the suction chamber pressure is present at the entire cross section of the valve body, and the force, now embodied by the cross section of the valve body and the suction chamber pressure established at idling rpm, attains a value, by comparison with the force of the compression spring that keeps the valve body away from the pressure relief line. This assures that the function of the cold start acceleration takes place only upon the first run-up of the engine. A rapid cold start acceleration is thereby advantageously attained, and a loud engine noise is only briefly audible.

    摘要翻译: 压力控制阀的一端与抽吸室连接,吸入室中的压力增加使注射时间早一些。 压力释放管线连接在压力控制室中的恢复室与压力维持阀之间。 压力维持阀包括阀插入件,该阀插入件包括设置有压缩弹簧加载阀体的阀筒。 阀体具有封闭压力释放线的密封面。 泄压线的直径小于阀筒直径。 压力释放线的直径被选择成使得存在于密封面处的吸入室压力使阀体远离阀座反向抵抗与阀体接触的压缩弹簧的力,并打开向前导向的压力释放线 。 在阀体从压力释放管线提升之后,吸入室压力存在于阀体的整个横截面处,现在由阀体横截面和抽吸室压力确定的力 与压缩弹簧的力相比,空转转速达到一个值,从而使阀体远离压力释放线。 这确保冷启动加速的功能仅在发动机的第一次起动时进行。 因此,有利地实现了快速的冷启动加速,并且仅仅可听见大声的发动机噪音。