Injector assembly
    35.
    发明公开
    Injector assembly 有权
    组装注射器

    公开(公告)号:EP1493917A1

    公开(公告)日:2005-01-05

    申请号:EP03012438.2

    申请日:2003-05-30

    发明人: D'Arrigo, Angelo

    IPC分类号: F02M61/16 F02M59/46

    摘要: The invention refers to a piezoelectric injector unit, in particular for injecting fuel into a vehicle engine, comprising a housing (10) containing a valve needle (32) for opening and closing a metering opening (31) and a piezoelectrically driven actuator element for actuating the valve needle (32) according to an electrical control voltage. The invention is characterized by the valve needle (32) and the metering opening (31) being part of a functionally independent valve module (30); the actuator element being part of a functionally independent piezoelectric actuator module (20); and both modules being inserted into the rigid housing (10). The invention further refers to a method for producing a piezoelectric injector unit.

    Fuel injector with a damping element and method for manufacturing a fuel injector
    36.
    发明公开
    Fuel injector with a damping element and method for manufacturing a fuel injector 有权
    燃料喷射阀具有用于制造燃料喷射阀的阻尼元件和方法

    公开(公告)号:EP1460262A1

    公开(公告)日:2004-09-22

    申请号:EP03006018.0

    申请日:2003-03-18

    IPC分类号: F02M51/06 F02M61/16 F02M55/04

    摘要: The proposed fuel injector comprises a fuel passage way in which a harmonic damper 25 is arranged. The harmonic damper dampens the noise and vibration of the fuel injector. The harmonic damper is fixed to the inlet tube of the fuel injector. The harmonic damper has a cylindrical shape with a central bore. An outer face of the harmonic damper is adjacent to an inner face of the inlet tube. The harmonic damper may be made of plastics or metal.

    摘要翻译: 建议燃油喷射器包括其中谐波减振器(25)布置的燃料通道的方式。 谐波阻尼器阻尼的燃料喷射器的噪音和振动。 谐波阻尼器被固定到所述燃料喷射器的入口管。 谐波阻尼器具有与中心孔的筒状。 谐波阻尼器的外表面邻近所述入口管的帧内面。 谐波阻尼器可以由塑料或金属制成。

    Metering device with flow calibrator and method for setting a flow rate of a metering device
    37.
    发明公开
    Metering device with flow calibrator and method for setting a flow rate of a metering device 有权
    测量与流量校准装置及方法的装置,用于调整所述测量装置的流动速率

    公开(公告)号:EP1445477A1

    公开(公告)日:2004-08-11

    申请号:EP03001633.1

    申请日:2003-01-24

    发明人: D'Arrigo, Angelo

    IPC分类号: F02M61/16 F02M51/06

    摘要: The invention relates to a metering device for dosing pressurized fluids, particularly an injection valve for a fuel injection system in an internal combustion engine, comprising a housing (12) having an end part provided with an outlet passage (14) terminating with a metering opening (16), an axially moveable valve needle (20) passing through the outlet passage (14), and controlling opening and closing of the metering opening (16), and a piezoelectric actuator (18) in axial alignment with the valve needle (20) and cooperating with the valve needle (20) to control its axial movement. A plastically deformable adjustment element (22) is arranged axially aligned between a bottom end piece (24) of the piezoelectric actuator (18) and a head (26) of the valve needle (20), wherein a plastic deformation of the adjustment element (22) regulates the axial spacing between the piezoelectric actuator (18) and the valve needle (20), thereby setting a flow rate for the metering device.

    摘要翻译: 本发明涉及计量装置用于计量加压流体,特别是喷射阀用于在内燃发动机的燃料喷射系统,其包括具有在出口通道(14)设置有端部的壳体(12)用计量开口处终止 (16)轴向可移动的阀针(20)通过出口通道(14)使,并控制所述计量开口(16),和压电致动器(18)轴向对准与阀针的打开和关闭(20 )并与阀针(20),以控制其轴向运动合作。 塑性可变形调整元件(22)是压电致动器的底部端件(24)(18)和阀针的worin调节元件的塑性变形(一个头(26)(20)之间布置成轴向对准的 22)调节压电致动器(18)和阀针(20),从而设置所述计量装置的流量之间的轴向间距。

    Metering device with an electrical connector
    38.
    发明公开
    Metering device with an electrical connector 审中-公开
    Dosiervorrichtung mit Steckanschluss

    公开(公告)号:EP1445470A1

    公开(公告)日:2004-08-11

    申请号:EP03001634.9

    申请日:2003-01-24

    摘要: The invention relates to a metering device for dosing pressurized fluids, comprising a housing (12) with a metering opening, controlled an axially moveable valve needle (26), an axially extendable piezoelectric actuator (18), a thermal compensator unit (20), and an electrical connector (30) for supplying electrical power to the piezoelectric actuator (18). According to the invention the electrical connector (30) comprises a connector body (32) containing a first set of pins (34A, 34B, 36A, 36B) adapted to be connected with an external power supply, and a second set of pins (38A, 38B) electrically connected to the first set of pins (34A, 34B, 36A, 36B) and providing electrical contact to the piezoelectric actuator (18), wherein the first set of pins (34A, 34B, 36A, 36B) is rigidly mounted in the connector body (32) and the second set of pins (38A, 38B) is axially moveably mounted in the connector body (32) to permit rapid axial movement of the thermal compensator unit (20).

    摘要翻译: 本发明涉及一种用于计量加压流体的计量装置,包括具有计量开口的壳体(12),控制可轴向移动的阀针(26),可轴向延伸的压电致动器(18),热补偿器单元(20) 以及用于向压电致动器(18)供电的电连接器(30)。 根据本发明,电连接器(30)包括连接器主体(32),其包含适于与外部电源连接的第一组引脚(34A,34B,36A,36B)和第二组引脚(38A ,38B),电连接到第一组引脚(34A,34B,36A,36B)并且提供与压电致动器(18)的电接触,其中第一组引脚(34A,34B,36A,36B)刚性地安装 连接器主体(32)和第二组销(38A,38B)可轴向移动地安装在连接器主体(32)中,以允许热补偿器单元(20)的快速轴向移动。

    Nozzle for a fuel injector
    39.
    发明公开
    Nozzle for a fuel injector 有权
    用于喷油器的喷嘴

    公开(公告)号:EP1413743A1

    公开(公告)日:2004-04-28

    申请号:EP02023553.7

    申请日:2002-10-22

    IPC分类号: F02M51/06 F02M61/08 F02M61/16

    摘要: The invention describes a nozzle (2) for a fuel injector (37) that comprises a simple damping element (1) for protecting a sealing connection between the needle (3) and the nozzle (2) from high pressure waves. The damping element (1) has the shape of a ring plate (1) that is positioned above an upper surface of the nozzle (2). The ring plate (1) is held against the upper surface of the nozzle (2) by a holding member (4). The holding member (4) has basically the shape of a sleeve and is used with a bellow (5) for tightly sealing off an actor chamber (38) from fuel.

    摘要翻译: 本发明描述了用于燃料喷射器(37)的喷嘴(2),其包括用于保护针(3)和喷嘴(2)之间的密封连接免受高压波的简单阻尼元件(1)。 阻尼元件(1)具有位于喷嘴(2)的上表面上方的环形板(1)的形状。 环形板(1)通过保持构件(4)保持抵靠喷嘴(2)的上表面。 保持件(4)基本上具有套筒的形状,并与波纹管(5)一起使用,用于将活动腔(38)与燃料紧密隔离。

    Method for producing an injector with a common plane end face
    40.
    发明公开
    Method for producing an injector with a common plane end face 有权
    一种用于在一个共同的平面端面产生具有一躺的喷射阀的过程

    公开(公告)号:EP1400311A1

    公开(公告)日:2004-03-24

    申请号:EP02018665.6

    申请日:2002-08-20

    IPC分类号: B24B15/02 F02M61/16 F02M61/08

    摘要: The invention describes a method for producing a plane common face (8) for an end face (7) of a needle (1) and an end face (8) of a corresponding nozzle (2) of an outwardly opening injector. The nozzle (2) and the needle (1) are produced with shapes, which fit at least roughly together, the needle (1) comprising a closing member (4) with an upper end face (19) with a second sealing face (5) and a lower end face (7) and the nozzle (2) comprising an opening end with an inner end face (18) with a first sealing face (3) and an outer end face (6). Moreover, the needle (1) is inserted into the nozzle (2) from the opening end and pressed with the second sealing face (5) against the first sealing face (3) of the nozzle. Afterwards the lower end face (7) of the needle (1) and the outer end face (6) of the nozzle are grinded to a common plane end face (8), which is at least at the border of the lower end face (7) and the outer end face (6).

    摘要翻译: 本发明针描述在端面产生平面共同面(8)一种方法向外开口的喷射器的相应的喷嘴(2)的(1)和端面(8)(7)。 喷嘴(2)和所述针(1)的产生具有的形状,哪个适合至少粗略地一起,(1),包括关部件的针(4),在上端面(19)与第二密封面(5 )及下端面(7)和(2)在含有内侧端面(18开口端,其包括喷嘴)具有第一密封面(3)和外端面(6)。 更上方,所述针(1)被插入到从开口端的喷嘴(2)和与所述第二密封面(5)抵靠喷嘴(3)的所述第一密封面按压。 之后的下端面(7)(1)和所述喷嘴的所述外端面(6)被研磨至一个共同的平面端面的针(8)的所有其至少,在下端面部的边界( 7)和所述外端面(6)。