ACTUATOR MODULE WITH A SHEATHED PIEZOELECTRIC ACTUATOR
    1.
    发明申请
    ACTUATOR MODULE WITH A SHEATHED PIEZOELECTRIC ACTUATOR 有权
    具有压电压电致动器的执行器模块

    公开(公告)号:US20100163650A1

    公开(公告)日:2010-07-01

    申请号:US12305753

    申请日:2007-09-13

    IPC分类号: F02M63/00 H01L41/053

    CPC分类号: H01L41/053 H01L41/083

    摘要: An actuator module including a piezoactuator, for example for a piezoinjector for metering fuel in an internal combustion engine, is proposed. The piezoactuator has piezoelements stacked one above another between an actuator head and an actuator foot and is provided with at least one elastomer layer enclosing the piezoelements. The elastomer layer is enveloped by a corrugated bellows or by telescopic tubes, composed of a material that is diffusion-impermeable with respect to a fuel to be metered by the piezoinjector. The corrugated bellows or the telescopic tubes have on their periphery grooves which can absorb expansions of the elastomer layer or of the piezoactuator.

    摘要翻译: 提出了一种致动器模块,其包括压电致动器,例如用于在内燃机中计量燃料的压电喷射器。 压电致动器具有在致动器头和致动器脚之间彼此叠置的压电元件,并且设置有至少一个围绕压电元件的弹性体层。 弹性体层被波纹波纹管或伸缩管包围,该管由相对于由压电式注射器计量的燃料扩散不渗透的材料组成。 波纹波纹管或伸缩管在其外围凹槽上具有可吸收弹性体层或压电致动器的膨胀的凹槽。

    Piezoelectric Actuator Having a Self-Centering Plug-In Connection
    2.
    发明申请
    Piezoelectric Actuator Having a Self-Centering Plug-In Connection 审中-公开
    具有自定心插入式连接的压电致动器

    公开(公告)号:US20080309197A1

    公开(公告)日:2008-12-18

    申请号:US12064396

    申请日:2006-07-13

    IPC分类号: H02N2/04

    摘要: The invention relates to a piezoelectric actuator used as a piezoelectric injector, comprising a holding body provided with an inner region, an upper part and a lower part, and a piezoelectric element which is arranged in the inner region against the upper part of the holding body and includes a plurality of piezoelectric layers arranged in the form of a stack, The piezoelectric element can be electrically contacted through the holding body. The upper part of the holding body has at least one connection for electrically contacting the piezoelectric element, and at least one connection and flow channels for feeding the inner chamber with a fluid that can be metered by means of a regulating element containing the piezoelectric element. An electrical plug-in connection is arranged between the piezoelectric element and the upper part of the holding body, which includes a mechanical plug-in connection being arranged between the holding body upper part and the piezoelectric element.

    摘要翻译: 本发明涉及一种用作压电喷射器的压电致动器,包括一个设置有内部区域,上部和下部的保持体,以及压电元件,该压电元件被布置在保持体的上部的内部区域中 并且包括以堆叠形式布置的多个压电层。压电元件可以通过保持体电接触。 保持体的上部具有用于电接触压电元件的至少一个连接件,以及至少一个连接和流动通道,用于通过借助于包含压电元件的调节元件计量的流体来供给内室。 在压电元件和保持体的上部之间设置电插入连接,其包括设置在保持体上部和压电元件之间的机械插入连接。

    Common rail injector
    3.
    发明授权
    Common rail injector 失效
    共轨喷油器

    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

    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)。

    Leak fuel connection that can be designed individually
    4.
    发明授权
    Leak fuel connection that can be designed individually 失效
    泄漏燃油连接可以单独设计

    公开(公告)号:US06705299B2

    公开(公告)日:2004-03-16

    申请号:US10129475

    申请日:2002-07-29

    IPC分类号: F02B3704

    CPC分类号: F02M55/002

    摘要: The present invention relates to a leak fuel connection, in particular for a common rail system or a common rail injector, for connecting a leak fuel line via a connecting conduit to a connection end piece. The leak fuel connection, on the outer circumference of a component on which the leak fuel connection is provided, has an at least intermittently annularly embodied conduit, into which the connecting conduit for connecting to the leak fuel line discharges. The annular conduit is connected to the connection end piece via a connection element.

    摘要翻译: 泄漏燃料连接技术领域本发明涉及一种泄漏燃料连接,特别是用于共轨系统或共轨喷射器,用于经由连接导管将泄漏燃料管路连接到连接端部件。 在设置有泄漏燃料连接的部件的外周上的泄漏燃料连接具有至少间歇地环形地实现的管道,用于连接到泄漏燃料管线的连接导管排放到该管道中。 环形导管通过连接元件连接到连接端部件上。

    Piezoelectrically actuated fuel injection valve
    6.
    发明授权
    Piezoelectrically actuated fuel injection valve 失效
    压电式燃油喷射阀

    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

    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。

    Fuel injection system for internal combustion engines
    7.
    发明授权
    Fuel injection system for internal combustion engines 失效
    内燃机燃油喷射系统

    公开(公告)号:US6085719A

    公开(公告)日:2000-07-11

    申请号:US289617

    申请日:1999-04-12

    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。

    PIEZOELECTRIC ACTUATOR WITH A SHEATH, FOR DISPOSITION IN A PIEZOELECTRIC INJECTOR
    8.
    发明申请
    PIEZOELECTRIC ACTUATOR WITH A SHEATH, FOR DISPOSITION IN A PIEZOELECTRIC INJECTOR 失效
    压电式致动器,用于压电注射器处理

    公开(公告)号:US20080265716A1

    公开(公告)日:2008-10-30

    申请号:US11846736

    申请日:2007-08-29

    IPC分类号: H01L41/04

    摘要: A piezoelectric actuator with piezoelectric elements, fastened between an actuator head and an actuator foot, and with a plastic sleeve surrounding at least the piezoelectric elements is proposed, which is set in a clamping ring on the actuator head and/or the actuator foot of the piezoelectric actuator. The respective clamping ring may be a metal part or a plastic part, which is equipped with clamping lugs suitable for setting the plastic sleeve and is thrust, pressed, or shrunk onto the respective actuator head and/or actuator foot of the steel piezoelectric actuator.

    摘要翻译: 提出了一种具有压电元件的压电致动器,其紧固在致动器头部和致动器脚部之间,以及至少围绕至少压电元件的塑料套管,其被设置在致动器头部和/或致动器脚的致动器脚上的夹紧环中 压电执行器。 相应的夹紧环可以是金属部件或塑料部件,其配备有适于设置塑料套筒并且被推压,压缩或收缩在钢压电致动器的相应致动器头部和/或致动器脚上的夹紧凸耳。