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公开(公告)号：US06871801B2
公开(公告)日：2005-03-29
申请号：US10275885
申请日：2002-03-09
CPC分类号： F02M61/20 , F02M47/02 , F02M47/027 , F02M2200/21
摘要： An injection nozzle has a nozzle body, a nozzle needle that is supported displaceably in the nozzle body, a control chamber that communicates with a fluid inlet and a fluid outlet, and a valve element that can open and close the fluid outlet. The control chamber is laterally defined by a displaceable ring which rests on the nozzle needle, and a closing spring presses the ring against the nozzle needle in fluid-tight fashion.
摘要翻译： 喷嘴具有喷嘴体，在喷嘴体中可移动地支撑的喷嘴针，与流体入口和流体出口连通的控制室，以及能够打开和关闭流体出口的阀体。 控制室由位于喷嘴针上的可移动环横向地限定，并且闭合弹簧以流体密封的方式将环压在喷嘴针上。
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公开(公告)号：US06726121B1
公开(公告)日：2004-04-27
申请号：US09806716
申请日：2001-08-20
IPC分类号： F02M4116
CPC分类号： F02M47/027 , F02M2200/21 , F02M2547/003
摘要： The invention relates to a common rail injector for injecting fuel in a common rail injection system of an internal combustion engine, which system has an injector housing (1) with a fuel inlet (24) that is in communication with a central high-pressure fuel reservoir outside the injector housing (1) and with a pressure chamber (27) inside the injector housing (1), from which fuel subjected to high pressure is injected as a function of the position of a control valve (18) that assures that a nozzle needle (8), which is movable back and forth and received in a longitudinal bore (6) of the injector axially counter to the prestressing force of a nozzle spring (21) that is received in a nozzle spring chamber (20), lifts from a seat when the pressure in the pressure chamber (27) is greater than the pressure in a control chamber (30) that communicates with the fuel inlet (24) via an inlet throttle (19). To achieve markedly higher nozzle needle speeds, the control chamber (15) is formed by a cylindrical chamber, in which a control peg (12), embodied on the end of the nozzle needle (8) remote from the combustion chamber, is displaceable causing a sealing effect, and that the nozzle spring chamber (20) is disposed outside the control chamber (15), in the region of the end of the nozzle needle (8) remote from the combustion chamber.
摘要翻译： 本发明涉及一种用于在内燃机的共轨喷射系统中喷射燃料的共轨喷射器，该系统具有喷射器壳体（1），其具有与中心高压燃料连通的燃料入口（24） 喷射器壳体（1）外部的压力室和喷射器壳体（1）内部的压力室（27），根据控制阀（18）的位置来喷射经受高压的燃料，其确保 喷嘴针（8）可前后移动并且被容纳在喷射器弹簧室（20）中的喷嘴弹簧（21）的预应力轴向上的轴向孔（6）内， 当压力室（27）中的压力大于通过入口节流阀（19）与燃料入口（24）连通的控制室（30）中的压力时，从座位开始，为了获得显着更高的喷嘴针速度， 控制室（15）由cy形成 其中在喷嘴针（8）的远离燃烧室的端部上实施的控制栓（12）可移动，引起密封效果，并且喷嘴弹簧室（20）设置在控制之外 在喷嘴针（8）的远离燃烧室的端部的区域中的腔室（15）。
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公开(公告)号：US06705551B1
公开(公告)日：2004-03-16
申请号：US09806697
申请日：2001-09-05
IPC分类号： F02M3900
CPC分类号： F02M61/042 , F02M47/02 , F02M47/027 , F02M61/12 , F02M61/168 , F02M2200/16 , F02M2200/28 , F02M2547/001 , F02M2547/006
摘要： The invention relates to a common rail fuel injector having an injector housing with a fuel inlet in communication with a central high-pressure fuel reservoir outside the injector housing and with a pressure chamber inside the injector housing. A control valve assures that a nozzle needle lifts from a seat when the pressure in the pressure chamber is greater than the pressure in a control chamber that communicates with the fuel inlet via an inlet throttle. The control chamber is defined by a bush that is displaceable, causing a sealing action, on the end of the nozzle needle remote from the combustion chamber and that is kept in contact against the injector housing with the aid of the nozzle spring.
摘要翻译： 本发明涉及一种共轨燃料喷射器，其具有喷射器壳体，其具有与喷射器壳体外部的中央高压燃料储存器连通的燃料入口以及喷射器壳体内的压力室。 当压力室中的压力大于通过入口节气门与燃料入口连通的控制室中的压力时，控制阀确保喷嘴针从座上提升。 控制室由可在位于喷嘴针远离燃烧室的端部处移动的引起密封作用的衬套限定，并且在喷嘴弹簧的帮助下保持与喷射器壳体接触。
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公开(公告)号：US06419164B1
公开(公告)日：2002-07-16
申请号：US09673358
申请日：2000-12-29
IPC分类号： F02M4702
CPC分类号： F02M51/0603 , F02M47/02
摘要： The invention relates to a fuel injection valve that has a valve member which can control a fuel outlet opening. The valve member has a first opening surface, which defines a first opening pressure chamber in the opening direction of the valve member, wherein the first opening pressure chamber is connected to a high-pressure fuel source and the pressure in the first opening pressure chamber produces a first opening force against the first opening surface. The valve member also has a first closing surface, which defines a first closing pressure chamber in the closing direction of the valve member, wherein the first closing pressure chamber is connected to the high-pressure fuel source and the pressure in the first closing pressure chamber produces a first closing force against the first closing surface.
摘要翻译： 本发明涉及一种燃料喷射阀，其具有能够控制燃料出口的阀构件。 阀构件具有第一开口表面，其在阀构件的打开方向上限定第一开启压力室，其中第一开启压力室连接到高压燃料源，并且第一开启压力室中的压力产生 抵抗第一开口表面的第一打开力。 阀构件还具有第一闭合表面，其在阀构件的关闭方向上限定第一闭合压力室，其中第一闭合压力室连接到高压燃料源，并且第一闭合压力室 产生抵抗第一关闭表面的第一关闭力。
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公开(公告)号：US07990023B2
公开(公告)日：2011-08-02
申请号：US12303401
申请日：2007-05-22
申请人： Albano De Paoli , Stefan Schuerg , Wolfgang Stoecklein , Holger Rapp , Thomas Pauer , Friedrich Boecking , Marco Holst , Helmut Sommariva , Claudia Klotz , Peter Cromme
发明人： Albano De Paoli , Stefan Schuerg , Wolfgang Stoecklein , Holger Rapp , Thomas Pauer , Friedrich Boecking , Marco Holst , Helmut Sommariva , Claudia Klotz , Peter Cromme
IPC分类号： H01L41/083
CPC分类号： H01L41/0533 , F02M51/0603 , H01L41/0475 , H01L41/083 , Y10T29/42
摘要： An arrangement is proposed for forming a piezoelectric actuator, which has at least one piezoelectric element that in each case consists of a multi-layer structure of piezoelectric-layers, wherein internal electrodes arranged between the piezoelectric-layers in the direction of the build-up of the layers of the piezoelectric element, have an electrical voltage of different polarity alternately applied to them. Around the piezoelectric element, or in the case of multiple piezoelectric elements positioned in series in the activation direction, around the piezoelectric elements, and at least partially around the actuator head and the actuator foot there is arranged a covering system made from at least one layer of an insulating material. The at least one layer encloses the joints between the piezoelectric element or elements and the actuator head and the actuator foot, forming a seal.
摘要翻译： 提出了一种用于形成压电致动器的装置，其具有至少一个压电元件，每个压电元件在每种情况下由压电层的多层结构组成，其中内部电极在堆积方向上布置在压电层之间 的压电元件的层具有不同极性的电压交替地施加到它们。 在压电元件周围，或者在多个压电元件在激活方向上串联定位的情况下，围绕压电元件，并且至少部分地围绕致动器头部和致动器脚部布置有由至少一层 的绝缘材料。 至少一个层包围压电元件和致动器头部和致动器脚之间的接合部，形成密封。
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公开(公告)号：US06448692B1
公开(公告)日：2002-09-10
申请号：US09520017
申请日：2000-03-06
IPC分类号： H01L4104
CPC分类号： H01L41/083 , H01L41/053
摘要： A piezoelectric actuator for actuating control valves or injection valves in motor vehicles. The actuator includes an actuator body in the form of a multilayer laminate of stacked layers of piezoelectric material and intervening metallic or electrically conductive layers acting as electrodes. One bottom plate toward the valve and an opposed top plate are mounted on each of the end faces of the actuator body. The piezoelectric actuator is characterized in that the actuator body on each of its end faces has one piezoelectrically inactive cover layer and that the connection faces of the bottom plate and the top plate which adjoin the end faces of the actuator body have fixation elements that grip the cover layers, for at least nonpositive fixation of the cover layers of the actuator body.
摘要翻译： 用于在机动车辆中起动控制阀或喷射阀的压电致动器。 致动器包括致动器本体，其为压电材料层叠层和作为电极的中间金属或导电层的多层叠层形式。 朝向阀门的一个底板和相对的顶板安装在致动器主体的每个端面上。 压电致动器的特征在于，其每个端面上的致动器主体具有一个压电非活性覆盖层，并且底板和顶板的与致动器主体的端面相邻的连接面具有固定元件， 覆盖层，用于致动器主体的覆盖层的至少非正极固定。
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公开(公告)号：US06290204B1
公开(公告)日：2001-09-18
申请号：US09319118
申请日：1999-07-08
IPC分类号： F02M5100
CPC分类号： F16K31/007 , F02M63/0026 , F02M2200/703
摘要： A valve for controlling liquids for its actuation is provided with a liquid-filled coupling chamber, which is disposed between a step-up piston, actuatable by a piezoelectric actuator, and a piston that actuates a valve member. To compensate for leakage in the coupling chamber that is at high pressure, a filling valve is provided. The filling valve is disposed between the step-up piston and the piezoelectric actuator. Upon each return stroke of the piezoelectric actuator, the step-up piston follows the piezoelectric actuator with a time lag, so that the filling valve opens briefly and allows filling of the coupling chamber. The valves intended for use in fuel injection systems for internal combustion engines of motor vehicles.
摘要翻译： 用于控制其致动液体的阀设置有液体填充的联接室，其设置在可由压电致动器致动的升压活塞和致动阀构件的活塞之间。 为了补偿处于高压的联接室中的泄漏，提供了一个填充阀。 填充阀设置在升压活塞和压电致动器之间。 在压电致动器的每次返回行程时，升压活塞以时间滞后于压电致动器，使得充填阀短暂打开并允许填充联接室。 用于汽车内燃机燃油喷射系统的阀门。
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公开(公告)号：US6155532A
公开(公告)日：2000-12-05
申请号：US165634
申请日：1998-10-02
CPC分类号： F02M47/027 , F02M2200/21 , F02M2200/706 , F02M2547/003
摘要： A valve for controlling fluids, which is provided with a fluid-filled coupling chamber that is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member. In order to compensate for a leakage in the coupling chamber that is intermittently under high pressure during a switching procedure, a filling valve is provided that is disposed radially on the coupling chamber, but outside the chamber, and this valve monitors an inflow from an inlet conduit that is under ambient pressure in the valve. In this manner, on the one hand, the clearance volume produced by the attachment of the filling valve is very small and on the other hand, the filling valve is independent of the accelerated movements of the pistons, i.e., independent of their acceleration forces. The valve is designated for use in fuel injection devices for internal combustion engines of motor vehicles.
摘要翻译： 一种用于控制流体的阀，其设置有设置在压电致动器的致动器活塞和致动阀构件的活塞之间的流体填充的联接室。 为了补偿在切换过程中在高压下间歇地连接的联接室中的泄漏，设置有径向设置在联接室上但在室外的填充阀，并且该阀监视来自入口的流入 在阀门处于环境压力下的管道。 以这种方式，一方面，通过安装充填阀产生的间隙体积非常小，另一方面，填充阀独立于活塞的加速运动，即不依赖于它们的加速力。 该阀被指定用于机动车内燃机的燃料喷射装置。
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公开(公告)号：US06581850B1
公开(公告)日：2003-06-24
申请号：US09869779
申请日：2001-09-06
IPC分类号： B05B108
CPC分类号： F02M45/08 , F02M47/02 , F02M47/025 , F02M47/027 , F02M2200/21 , F02M2200/703
摘要： The fuel injection valve (16) has an injection valve member (24), by which at least one injection opening (26) is controlled. The motion of the injection valve member (24) is influenced by a control valve (18), which has a control valve member (62) by which the pressure in a control pressure chamber (48) is controlled and which is movable by an adjusting force generated by a piezoelectric actuator (80) and in the process control the communication of the control pressure chamber (48) with a relief chamber (12). The control valve (18) has two valve seats (60, 74), spaced apart from one another in the direction of motion of the control valve member (62), with which seats the control valve member (62) cooperates, each with a respective sealing face (66, 69) disposed on it, so that the control valve member (62) has two closing positions, in which the control pressure chamber (48) is disconnected from the relief chamber (12). When the control valve member (62) is not in one of the two closing positions, the control pressure chamber (48) does communicate with the relief chamber (12). With a motion of the control valve member (62) between its two closing positions, a brief opening of the fuel injection valve (16) is made possible.
摘要翻译： 燃料喷射阀（16）具有喷射阀构件（24），通过该喷射阀构件控制至少一个喷射开口（26）。 喷射阀构件（24）的运动受控制阀（18）的影响，控制阀（18）具有控制阀构件（62），通过该控制阀构件控制控制压力室（48）中的压力，并且其可通过调节 由压电致动器（80）产生的力，并且在过程中控制压力室（48）与释放室（12）的连通。 控制阀（18）具有两个阀座（60,74），它们在控制阀构件（62）的运动方向上彼此间隔开，控制阀构件（62）与其配合， 设置在其上的相应的密封面（66,69），使得控制阀构件（62）具有两个关闭位置，其中控制压力室（48）与释放室（12）断开。 当控制阀构件（62）不处于两个关闭位置中的一个时，控制压力室（48）与释放室（12）连通。 随着控制阀构件（62）在其两个关闭位置之间的运动，燃料喷射阀（16）的简单开口成为可能。
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10.发明授权公开(公告)号：US07339308B2
公开(公告)日：2008-03-04
申请号：US10553419
申请日：2004-03-19
IPC分类号： H01L41/053
CPC分类号： F02M51/0603 , F02M2200/26 , H01L41/053 , H01L41/0536
摘要： An actuator unit which is suitable for actuating a fuel injection valve of an injection system for internal combustion engines includes a piezoelectric actuator and a hollow body embodied as a spring. The service life of the actuator unit can be improved by designing the hollow body to eliminate or minimize bending stresses on the piezoelectric actuator.
摘要翻译： 适于致动用于内燃机的喷射系统的燃料喷射阀的致动器单元包括压电致动器和体现为弹簧的中空体。 致动器单元的使用寿命可通过设计中空体来消除或最小化压电致动器上的弯曲应力来改善。
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