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    • 61. 发明授权
    • Control unit for controlling a pressure build-up in a pump unit
    • 控制单元,用于控制泵单元中的压力积聚
    • US06530556B1
    • 2003-03-11
    • US09529655
    • 2000-06-05
    • Friedrich Boecking
    • Friedrich Boecking
    • F16K3102
    • F02M59/366F02M59/466
    • The invention relates to a control unit (4) for controlling the pressure buildup in a pump unit (2), with a control valve (5) and a valve actuation unit (6) connected to it, wherein the control valve (5) is embodied as an I-valve that opens inward in the flow direction, which has a valve body (11) that is supported so that it can move axially in a housing (12) of the control unit (4) and rests against a valve seat (13) of the control valve (5) from the inside when the control valve (5) is closed. In order to produce a control unit (4) whose control valve (5) requires lower valve actuation forces and has short switching times, the invention proposes a control unit (4) which is characterized by means of an axially effective surface of the valve body (11) which surface is embodied in such a way that the forces, which act on the valve body (11) when the control valve (5) is closed and are due to the pressure present in the pump unit (2), cancel each other out.
    • 本发明涉及一种控制单元(4),用于控制泵单元(2)中的压力积分,其中控制阀(5)和与其连接的阀致动单元(6),其中控制阀(5)是 体现为在流动方向向内打开的I型阀,其具有阀体(11),所述阀体被支撑成使得其能够在所述控制单元(4)的壳体(12)中轴向移动并靠在阀座 (5)关闭时从控制阀(5)的内部(13)移动。 为了产生控制单元(4),其控制阀(5)需要较低的阀致动力并具有短的切换时间,本发明提出了一种控制单元(4),其特征在于阀体的轴向有效表面 (11),其表面以这样一种方式实现:当控制阀(5)关闭并且由于泵单元(2)中存在的压力而作用在阀体(11)上的力抵消每个 另外出来
    • 62. 发明申请
    • Fuel injection device for an internal combustion engine
    • 内燃机燃油喷射装置
    • US20030042334A1
    • 2003-03-06
    • US10216230
    • 2002-08-12
    • Peter Boehland
    • F02M059/00
    • F02M61/16F02M45/08F02M57/023F02M59/366F02M59/466F02M59/48F02M61/168F02M61/205F02M63/0007F02M2200/304F02M2200/40
    • The fuel injection device has a fuel injection valve that has an injection valve member, which is guided so that it can slide in a valve body and controls at least one injection opening and which can be moved in the opening direction, counter to the force of a closing spring contained in a spring chamber by means of the pressure prevailing in a pressure chamber of the fuel injection valve. Highly pressurized fuel is supplied from a high pressure source to the pressure chamber of the fuel injection valve. An electrically controlled valve at least indirectly controls a connection of the pressure chamber to a relief chamber and connects the pressure chamber to the relief chamber in order to terminate the fuel injection. The pressure chamber of the fuel injection valve has a connection to the spring chamber, which connection contains a check valve that opens toward the pressure chamber.
    • 燃料喷射装置具有燃料喷射阀,其具有喷射阀构件,该喷射阀构件被引导为能够在阀体中滑动并且控制至少一个喷射开口并且能够沿打开方向移动, 封闭弹簧通过燃料喷射阀的压力室中的压力容纳在弹簧室中。 高压燃料从高压源供应到燃料喷射阀的压力室。 电控阀至少间接地控制压力室与释放室的连接,并将压力室连接到释放室以终止燃料喷射。 燃料喷射阀的压力室具有与弹簧室的连接,该连接包含朝向压力室打开的止回阀。
    • 63. 发明授权
    • Control valve for hydraulically oil activated fuel injector
    • 液压油活化燃油喷射器控制阀
    • US06526943B2
    • 2003-03-04
    • US09983037
    • 2001-10-22
    • Ulrich Augustin
    • Ulrich Augustin
    • F02M3704
    • F02M59/46F02M57/025F02M59/466
    • An oil activated fuel injector which includes a control valve having a groove which provides a fluid path between a bore and a cross bore of the valve body. The fluid path leads to ambient such that a pressure within a pressure chamber is less than that of the rail pressure. This equalized pressure allows the spool within the valve body to move to a first position thus forming a fluid path between an inlet port and the working port leading to the intensifier chamber. When the fluid path is blocked, via movement of the groove out of alignment with the cross bar, the pressure within the pressure chamber increases thereby forcing the spool to move towards a second position. In the second position, a space is formed between the spool and the body of the injector to provide venting of the working fluid from the intensifier chamber to ambient.
    • 一种油激活燃料喷射器,其包括具有凹槽的控制阀,所述槽在孔体与阀体的横孔之间提供流体路径。 流体路径导致环境,使得压力室内的压力小于轨道压力的压力。 这种均衡的压力允许阀体内的阀芯移动到第一位置,从而在进入端口和通向增压室的工作端口之间形成流体路径。 当流体路径被阻挡时,通过槽的移动与横杆对准,压力室内的压力增加,从而迫使阀芯向第二位置运动。 在第二位置,在阀芯和喷射器主体之间形成空间,以使工作流体从增压室排放到环境中。
    • 64. 发明申请
    • Variable pressure fuel injection system with dual flow rate injector
    • 具有双流量注射器的可变压力燃油喷射系统
    • US20030038185A1
    • 2003-02-27
    • US09933898
    • 2001-08-22
    • John T. Carrol IIIDonald J. BensonYul J. Tarr
    • F02M041/16
    • F02M47/027F02M45/04F02M45/086F02M45/12F02M53/04F02M59/466F02M59/468F02M61/042F02M61/12F02M61/1806F02M61/20F02M61/205F02M2200/21F02M2200/46
    • A variable pressure fuel injection system and multi-flow rate injector is provided which produces multiple fuel injection flow rates from a common source of pressurized fuel to enable reductions in emissions, combustion noise and particulates while improving fuel consumption. The present invention includes inner and outer needle valve elements biased into respective closed positions against respective valve seats for controlling the flow through corresponding sets of injection orifices. The movement of each valve is controlled by an injection control valve controlling the drain flow of control fuel from respective control volumes positioned at outer ends of the valve elements. Valve element bias spring preloads along with control flow orifices and needle valve element surface areas are selected to cause, for example, single valve operation at low fuel supply pressure and dual valve operation at high supply pressure.
    • 提供了可变压力燃料喷射系统和多流量喷射器,其从共同的加压燃料源产生多个燃料喷射流量,以在减少燃料消耗的同时减少排放,燃烧噪声和颗粒物。 本发明包括内针和外针阀元件,其相对于相应的阀座偏压到相应的关闭位置,用于控制通过相应组的注射孔的流量。 每个阀的运动通过一个喷射控制阀来控制,该喷射控制阀控制控制燃料从定位在阀元件外端的相应控制体积的排出流。 选择阀元件偏压弹簧与控制流量孔和针阀元件表面区域的预加载,例如在低燃料供应压力下进行单阀操作,并在高供应压力下双阀操作。
    • 66. 发明申请
    • Fuel injection system for internal combustion engines
    • 内燃机燃油喷射系统
    • US20020152992A1
    • 2002-10-24
    • US10083130
    • 2002-02-27
    • Robert Bosch GmbH
    • Nestor Rodriguez-AmayaRoger PotschinJuergen GruenUlrich Projahn
    • F02M001/00
    • F02M63/0049F02M45/04F02M45/08F02M45/12F02M47/027F02M59/366F02M59/466F02M59/468F02M63/0017F02M63/0026F02M63/0061F02M2200/703
    • The fuel injection apparatus has one fuel pump or each cylinder of the engine, which pump has a pump piston, driven by the engine in a reciprocating motion, that defines a pump work chamber, which communicates via a line with a fuel injection valve, disposed on the engine separately from the fuel pump, which valve has an injection valve member, by which at least one injection opening is controlled, and which is movable in the opening direction, counter to a closing force, by the pressure generated in the pump work chamber; a first electrically triggered control valve is provided, by which a communication of the line with a relief chamber is controlled. A second electrically triggered control valve is provided, which is disposed near the fuel injection valve and by which the pressure prevailing in a control pressure chamber of the fuel injection valve is controlled, by which pressure the injection valve member is urged at least indirectly in the closing direction. Both control valves are disposed on the fuel injection valve.
    • 燃料喷射装置具有一个燃料泵或发动机的每个气缸,该泵具有由往复运动的发动机驱动的泵活塞,该泵活塞限定了经由管线与燃料喷射阀连通的泵工作室, 在与发动机分开的发动机上,该阀具有喷射阀构件,通过该喷射阀构件至少一个喷射开口被控制,并且其能够通过在泵工作中产生的压力与打开方向相反的方向与闭合力相反 房间 提供了第一电触发控制阀,通过该控制阀控制线与释放室的连通。 提供了第二电触发控制阀,其设置在燃料喷射阀附近,并且通过该第二电触发控制阀控制燃料喷射阀的控制压力室中的压力,通过该压力,喷射阀构件至少间接地被推压在 关闭方向。 两个控制阀设置在燃料喷射阀上。
    • 67. 发明授权
    • Rate shaped fluid driven piston assembly and fuel injector using same
    • 速率形流体驱动活塞组件和使用其的燃料喷射器
    • US06412473B1
    • 2002-07-02
    • US09607164
    • 2000-06-29
    • Xinshuang NanYe Tian
    • Xinshuang NanYe Tian
    • F02M700
    • F02M59/46F02M47/043F02M57/025F02M59/466F02M61/205F02M2200/502
    • A hydraulically actuated fuel injector includes an injector body that defines an actuation fluid passage, a low pressure area and a nozzle outlet. A piston having a hydraulic surface is positioned in the injector body and moveable a stroke distance between a retracted position and an advance position. At least one of the piston and injector body define a first cavity and a second cavity when the piston is located in an initial portion of its stroke distance. Before a first portion of the hydraulic surface is exposed to fluid pressure in the first cavity, and a second portion of the hydraulic surface is exposed to fluid pressure in the second cavity when the piston is in its initial portion of its stroke distance. A valve is positioned in the injector body and has an open position that fluidly connects the second cavity to the low pressure area when the piston is located in the initial portion of its stroke distance, and a closed position when the piston is located away from the initial portion of the stroke distance.
    • 液压致动燃料喷射器包括限定致动流体通道,低压区域和喷嘴出口的喷射器主体。 具有液压表面的活塞定位在喷射器主体中并且能够在缩回位置和提前位置之间移动行程距离。 当活塞位于其行程距离的初始部分中时,活塞和喷射器主体中的至少一个限定第一腔和第二腔。 在液压表面的第一部分暴露于第一腔中的流体压力之前,并且当活塞处于其行程距离的初始部分时,液压表面的第二部分暴露于第二腔中的流体压力。 阀门定位在喷射器主体中,并且具有打开位置,当活塞位于其行程距离的初始部分时,将第二腔体流体连接到低压区域,并且当活塞远离 行程距离的初始部分。