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公开(公告)号：US06765337B1
公开(公告)日：2004-07-20
申请号：US09381755
申请日：1999-09-22
IPC分类号： H01L4108
CPC分类号： H01L41/0472 , H01H57/00 , H01L41/0475
摘要： A piezoelectric actuator having a plurality of plates of a piezoelectric material whose polarization direction runs perpendicularly to the plate plane, and which are stacked one over another in their polarization direction. The piezoelectric actuator includes a control voltage source having two contacts, two groups of at least two outer electrodes, respectively, and a plurality of internal electrodes which, in each case, are arranged between the piezoelectric plates. In this context, the outer electrodes of the first group are electrically connected to a first contact of control voltage source, and the outer electrodes of the second group to the second contact of control voltage source. Internal electrodes alternately contact outer electrodes in such a way that, in each case, an internal electrode is electrically connected to one contact of control voltage source, and the internal electrode that is next in the stacking direction is electrically connected to the other contact of control voltage source. The internal electrodes contact the outer electrodes in a cyclic sequence.
摘要翻译： 一种压电致动器，具有压电材料的多个板，其极化方向垂直于板平面延伸，并且在其极化方向上一个层叠。 压电致动器包括分别具有两个触点，两组至少两个外部电极的控制电压源，以及在每种情况下布置在压电板之间的多个内部电极。 在本上下文中，第一组的外部电极电连接到控制电压源的第一触点，第二组的外部电极连接到控制电压源的第二触点。 内部电极交替地接触外部电极，使得在每种情况下，内部电极电连接到控制电压源的一个触点，并且下一个层叠方向上的内部电极电连接到控制的另一个触点 电压源。 内部电极以周期顺序与外部电极接触。
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公开(公告)号：US5915361A
公开(公告)日：1999-06-29
申请号：US169945
申请日：1998-10-13
CPC分类号： F02M63/0045 , F02M47/027 , F02M63/0026
摘要： A fuel device which has a high-pressure fuel source from which a number of fuel injection valves, which are each controlled by a 3-way valve, are supplied with fuel. This 3-way valve has a valve member with a closing body provided with sealing faces that cooperates with valve seats and in addition, in its closed positions, defines pressure-exposed surfaces that produce resulting forces that are active in the respective closed position of the closing body.
摘要翻译： 具有高压燃料源的燃料装置由多个由三通阀控制的燃料喷射阀供给燃料。 该三通阀具有阀构件，该阀构件具有密封面，密封面与阀座配合，另外在其闭合位置限定压力暴露表面，该表面产生在相应闭合位置中有效的力 关闭体。
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公开(公告)号：US06452308B1
公开(公告)日：2002-09-17
申请号：US09601353
申请日：2000-08-25
申请人： Rudolf Heinz , Klaus-Peter Schmoll
发明人： Rudolf Heinz , Klaus-Peter Schmoll
IPC分类号： H01L4108
CPC分类号： F02M63/0026 , F02M47/027 , F02M51/0603 , H01L41/0472 , H01L41/0533 , H01L41/0536
摘要： A piezoelectric actuator for actuating control valves or injection valves in internal combustion engines in motor vehicles. The piezoelectric actuator body is in the form of a multilayer laminate of layered plies of piezoelectric material and intervening metal, for instance electrically conductive layers acting as electrodes. The electrode layers are contacted by electrically conductive common electrode leads, and the actuator body is surrounded by a metal module wall which encircles an interstice that contains the common electrode leads. The common electrode leads are designed in the form of a three-dimensionally structured surface or a three-dimensionally structured body, and a portion thereof contacting the actuator body has a lengthened portion or enlargement, that protrudes into the interstice, for dissipating heat from the actuator body, and an elastomer filling with heat-conducting additive particles in the interstice.
摘要翻译： 一种用于在机动车辆内燃机中驱动控制阀或喷射阀的压电致动器。 压电致动器主体是压电材料和中间金属的层叠层的多层层压体的形式，例如用作电极的导电层。 电极层与导电公共电极引线接触，并且致动器主体被围绕包含公共电极引线的间隙的金属模块壁围绕。 公共电极引线被设计成三维结构化表面或三维结构体的形式，并且其与致动器本体接触的部分具有突出到间隙中的延长部分或扩大部分，以从其中散出热量 致动器主体，以及在空隙中填充导热添加剂颗粒的弹性体。
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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：US06291929B1
公开(公告)日：2001-09-18
申请号：US09601727
申请日：2000-08-25
申请人： Rudolf Heinz , Klaus-Peter Schmoll
发明人： Rudolf Heinz , Klaus-Peter Schmoll
IPC分类号： H01L4108
CPC分类号： H01L41/0536 , H01L41/083
摘要： The invention relates to a piezoelectric actuator, in particular for actuating control valves or injection valves in internal combustion engines of motor vehicles, having a piezoelectric actuator body in the form of a multi-layer laminate of stacked layers of piezoelectric material and metal or electrically conductive layers, acting as electrodes, located between them, in which one of the face ends of the actuator body is fixed to a stationary metal actuator base, and the other face end borders a metal retaining plate that is movable with the actuator stroke. The piezoelectric actuator is characterized in that the piezoelectric material has blind metal electrodes on both face ends, each of which electrodes is located in a passive piezoceramic cover layer between the respective outermost active piezoceramic layer and the movable retaining plate and actuator base.
摘要翻译： 本发明涉及一种压电致动器，特别是用于致动机动车辆的内燃机中的控制阀或喷射阀，具有压电致动器主体，其形式为压电材料和金属或导电的堆叠层的多层叠层 作为电极的位于它们之间的电极，其中致动器主体的一个端面固定到固定的金属致动器基座，另一个端面与可与致动器行程一起移动的金属保持板相接。 压电致动器的特征在于，压电材料在两个端部具有盲金属电极，每个电极位于各个最外面的有源压电陶瓷层与可动保持板和致动器基座之间的无源压电陶瓷覆盖层中。
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公开(公告)号：US06196193B1
公开(公告)日：2001-03-06
申请号：US09254632
申请日：1999-05-28
IPC分类号： F02M4100
CPC分类号： F02M63/0045 , F02D41/2096 , F02M45/08 , F02M47/027 , F02M63/0026
摘要： A fuel device including a high-pressure fuel source from which fuel is supplied to fuel injection valves. The fuel injection valves are controlled with the aid of a valve that is driven by a piezoelectric or magnetostrictive drive mechanism. With the aid of this drive mechanism, a 3-way valve having a closing body can be adjusted in an intermediary position in which a control chamber, by way of which a hydraulic force can be exerted in the closing direction on a valve closing member of the injection valve, can simultaneously be connected to a high-pressure fuel source and a relief chamber in order to adjust a control pressure that lies between the high pressure of the high-pressure source and a relief pressure. In this manner, a partial opening of the injection valve member of the injection valve can be adjusted in order to introduce a reduced injection quantity into the combustion chamber of the internal combustion engine.
摘要翻译： 一种燃料装置，包括向燃料喷射阀供给燃料的高压燃料源。 燃料喷射阀借助于由压电或磁致伸缩驱动机构驱动的阀来控制。 借助该驱动机构，可以在中间位置调节具有闭合体的三通阀，其中控制室通过该控制室可以在闭合方向上向阀关闭件施加液压力 喷射阀可以同时连接到高压燃料源和释放室，以便调节位于高压源的高压和安全压力之间的控制压力。 以这种方式，可以调节喷射阀的喷射阀构件的部分打开，以将减少的喷射量引入内燃机的燃烧室。
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公开(公告)号：US06172445B2
公开(公告)日：2001-01-09
申请号：US09117891
申请日：1999-02-05
IPC分类号： H01L4108
CPC分类号： F16F1/025 , F02M47/027 , F02M51/005 , F02M51/0603 , F02M63/0026 , F02M2200/26 , F16K31/004 , F16K31/007 , H01L41/0536 , H01L41/083
摘要： A piezoelectric actuator intended for instance for actuating injection valves in internal combustion engines of motor vehicles is protected against destructive tensile strains in that resilient prestressing elements that subject the piezoelectric body to precompression are provided for the piezoelectric body of the actuator.
摘要翻译： 旨在例如用于在机动车辆的内燃机中致动喷射阀的压电致动器被保护以防止破坏性的拉伸应变，因为对于致动器的压电体提供使压电体预压缩的弹性预应力元件。
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公开(公告)号：US06168133A
公开(公告)日：2001-01-02
申请号：US09319168
申请日：1999-06-02
IPC分类号： F16K31124
CPC分类号： F02M63/0026 , F02M47/027 , F02M63/0035 , F02M63/0043 , F02M63/0057 , F02M63/0225 , F02M2200/704 , F02M2200/705 , F02M2547/003
摘要： A valve for controlling liquids which for its actuation is provided with a liquid-filled coupling chamber, which is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member. To compensate for liquid losses suffered by the coupling chamber, which is briefly at high in each work cycle, the pressure difference that exists during the return stroke of the actuator piston between the coupling chamber and the opposite sides of the actuator piston and of the that actuates the valve member that are remote from the coupling chamber is utilized to achieve refilling in valveless fashion along gaps. The valve is used for use in fuel injection systems for internal combustion engines of motor vehicles.
摘要翻译： 用于控制用于其致动的液体的阀设置有液体填充的联接室，该液体填充的联接室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。 为了补偿每个工作循环中短暂高度的联接室所遭受的液体损失，在致动器活塞在致动器活塞在致动器活塞与致动器活塞的相对侧之间的返回冲程期间存在的压力差 驱动离开联接室的阀构件用于实现沿着间隙以无瓣方式的再填充。 该阀用于汽车内燃机的燃油喷射系统。
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公开(公告)号：US6085719A
公开(公告)日：2000-07-11
申请号：US289617
申请日：1999-04-12
IPC分类号： F02M45/08 , F02M47/00 , F02M47/02 , F02M51/00 , F02M59/46 , F02M61/20 , F02B3/00 , F02M41/00
CPC分类号： F02M63/0056 , F02M45/08 , F02M47/027 , F02M63/0026 , F02M63/0078
摘要： A fuel injection system for internal combustion engines is proposed which supplies fuel injection valves with fuel from a high-pressure fuel source, under the control of a control unit. The fuel injection valve has an injection valve member, whose opening or closing position is determined by a pressure that acts upon this injection valve member and that is set in a control chamber. To that end, to perform an injection, the pressure in the control chamber must be relieved; which is achieved with a control valve that opens two different outflow cross sections of an outflow conduit of the control chamber in succession. This makes it possible to accomplish an adapted opening of the fuel injection valve member for a preinjection and for a main injection.
摘要翻译： 提出了一种用于内燃机的燃料喷射系统，其在控制单元的控制下为燃料喷射阀提供来自高压燃料源的燃料。 燃料喷射阀具有喷射阀构件，其打开或关闭位置由作用在该喷射阀构件上并被设置在控制室中的压力决定。 为此，要进行注射，必须缓解控制室内的压力; 其通过控制阀连续打开控制室的流出管道的两个不同的流出横截面来实现。 这使得可以实现用于预喷射和主喷射的燃料喷射阀构件的适当打开。
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公开(公告)号：US06547213B1
公开(公告)日：2003-04-15
申请号：US09856600
申请日：2001-05-23
IPC分类号： F16K3112
CPC分类号： F02M63/0026 , F02M47/027 , F16K31/007
摘要： A valve for controlling fluids is described, wherein a valve closing member (13) divides a low-pressure region (16) in the valve (1) from a high-pressure region (17), and a filling device (19) is provided to compensate for a leakage quantity from the low-pressure region (16) by withdrawal of hydraulic fluid from the high-pressure region (17). The filling device (19) is embodied in a valve body (9) with a conduitlike hollow chamber (18) in which a solid body (26) is disposed in such a way that a gap (28) is formed between the solid body (26) and the valve body (9). The material of the solid body (26) has a coefficient of thermal expansion that is so much greater than that of the material of the valve body (9) that with increasing temperature, a viscosity-dictated increase in the volumetric flow around the solid body (26) is at least partly limited (FIG. 1).
摘要翻译： 描述了一种用于控制流体的阀，其中，阀关闭构件（13）将阀（1）中的低压区域（16）与高压区域（17）分开，并且提供填充装置（19） 以通过从高压区域（17）中取出液压流体来补偿来自低压区域（16）的泄漏量。 填充装置（19）被实施在具有导管状中空室（18）的阀体（9）中，其中固体（26）以这样的方式设置，使得在固体之间形成间隙（28） 26）和阀体（9）。 固体（26）的材料具有比阀体（9）的材料大得多的热膨胀系数，随着温度的升高，固体附近的体积流量的粘度增加 （26）至少部分受限（图1）。
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