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    Fuel injector
    1.
    发明授权
    Fuel injector 有权
    喷油器

    公开(公告)号：US09068540B2

    公开(公告)日：2015-06-30

    申请号：US13884772

    申请日：2011-10-18

    Applicant: Holger Rapp ,  Helmut Clauss ,  Wolfgang Stoecklein ,  Bernd Berghaenel ,  Marco Beier ,  Changyi Wang

    Inventor： Holger Rapp ,  Helmut Clauss ,  Wolfgang Stoecklein ,  Bernd Berghaenel ,  Marco Beier ,  Changyi Wang

    IPC: F02M47/02 ,  F02M57/00

    CPC classification number: F02M57/005 ,  F02M47/027 ,  F02M2200/16 ,  F02M2200/21 ,  F02M2200/244 ,  F02M2200/247

    Abstract: The invention relates to a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine, comprising a nozzle needle (1) which is able to perform stroke motions and by the stroke motion of which at least one injection opening can be exposed or closed, and further comprising a control valve (2) for controlling the stroke motion of the nozzle needle (1) in that, depending on the respective switch position of the control valve (2), hydraulic pressure applied in closing direction to the nozzle needle (1) in a control chamber (3) is altered, and further comprising a sensor array (4) for detecting the needle closing time. According to the invention, the sensor array (4) is arranged in the low-pressure area of the fuel injector in a space (5) which is sealed with respect to the fuel-conducting area (6). Sealing of the space (5) is effected by a membrane (7) made of a fuel-resistant, electrically conductive material, allowing the membrane (7) to also be utilized for implementing a ground connection.

    Abstract translation: 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器，其包括能够执行冲击运动的喷嘴针（1）和能够暴露至少一个喷射开口的冲程运动 并且还包括用于控制喷嘴针（1）的冲程运动的控制阀（2），其中，根据控制阀（2）的各个开关位置，在关闭方向上施加到喷嘴针的液压 （1）在控制室（3）中被改变，并且还包括用于检测针闭合时间的传感器阵列（4）。 根据本发明，传感器阵列（4）布置在燃料喷射器的低压区域中，该空间（5）相对于燃料传导区域（6）被密封。 通过由耐燃导电材料制成的膜（7）来实现空间（5）的密封，从而允许膜（7）用于实现接地连接。

    Common rail system
    5.
    发明申请
    Common rail system 审中-公开
    共轨系统

    公开(公告)号：US20030062026A1

    公开(公告)日：2003-04-03

    申请号：US10129520

    申请日：2002-08-09

    Inventor： Friedrich Boecking

    IPC: F02M001/00 ,  F16K031/12

    CPC classification number: F02D41/3872 ,  F02D41/2096 ,  F02M47/027 ,  F02M57/005 ,  F02M61/167 ,  F02M63/0026 ,  F02M63/0036 ,  F02M63/0225 ,  F02M2200/24 ,  F02M2200/244 ,  F02M2200/247 ,  F02M2200/703

    Abstract: A valve for triggering a fluid is proposed, having an actuator unit (7) for actuating an axially displaceable valve member (6), with which a valve closing member (15) is associated, which for opening and closing the valve (1) cooperates with a valve seat (23) and which separates a high-pressure region (3) from the valve (1). In the high-pressure region (3), the fluid to be triggered is at an operating pressure (p_R). This operating pressure (p_R) and an overpressure that may occur in some circumstances is recorded, because of the provision that the actuator unit (7) is embodied as a force-measuring sensor. In particular, this valve (1) serves as a pressure-limiting valve in a common rail system (Drawing).

    Abstract translation: 提出了一种用于触发流体的阀，其具有致动器单元（7），用于致动一个可轴向移动的阀构件（6），阀门关闭构件（15）与该阀构件相关联，用于打开和关闭阀门 具有阀座（23）并且将高压区域（3）与阀（1）分离。 在高压区域（3）中，待触发的流体处于工作压力（p_R）。 由于将致动器单元（7）实施为力测量传感器，所以记录了在某些情况下可能发生的该操作压力（p_R）和过压。 特别地，该阀（1）用作共轨系统中的限压阀（图）。

    Fuel Injector
    6.
    发明申请
    Fuel Injector 审中-公开

    公开(公告)号：US20180087480A1

    公开(公告)日：2018-03-29

    申请号：US15567025

    申请日：2016-03-01

    Applicant: Robert Bosch GmbH

    Inventor： Martin Bernhaupt

    IPC: F02M57/00

    CPC classification number: F02M57/005 ,  F02M2200/24 ,  F02M2200/244 ,  F02M2200/247

    Abstract: A fuel injector includes an injector housing, a longitudinally movable nozzle needle, and a force sensing element. The injector housing defines a nozzle chamber, a pressure chamber, and a measuring chamber. The nozzle chamber is configured to be supplied with pressurized fuel via a feed line formed in the injector housing. The pressure chamber is configured to be hydraulically connected to the feed line. The nozzle needle is disposed in the nozzle chamber and is configured to open and to close at least one spray hole. The force sensing element is disposed in the measuring chamber and is configured to detect a pressure in the pressure chamber. The measuring chamber is separated from the pressure chamber by a diaphragm-like intermediate wall. The force sensing element supports the intermediate wall.

    MODULAR ACTUATOR UNIT FOR A FUEL INJECTION VALVE
    7.
    发明申请
    MODULAR ACTUATOR UNIT FOR A FUEL INJECTION VALVE 有权
    燃油喷射阀模块执行器单元

    公开(公告)号：US20160053910A1

    公开(公告)日：2016-02-25

    申请号：US14781443

    申请日：2014-04-16

    Applicant: CONTINENTAL AUTOMOTIVE GMBH

    Inventor： Claus Zumstrull

    IPC: F16K31/00 ,  F16K7/12

    CPC classification number: F16K31/007 ,  F02M57/005 ,  F02M2200/244 ,  F16K7/12 ,  F16K31/008

    Abstract: An actuator unit for a fuel injection valve of a vehicle internal combustion engine. The actuator unit includes an electronic component formed as a stack. The component includes a plurality of electrode layers and a plurality of material layers which are arranged alternately and react to the application of an electric field. The component also has two outer electrodes electrically connected to respective electrode layers on at least one circumferential side of the component. Additionally, the actuator unit has a piezoelectric sensor coupled to the component in a force-fitting manner, in the stroke direction of the component. When the component is in operation, the sensor detects a force generated by the component, as a voltage or charge between two electrodes arranged on opposing end faces, of a sensor element. The electrodes are deposited from an electrically conductive material directly onto at least the end faces of the sensor element.

    Abstract translation: 一种用于车辆内燃机的燃料喷射阀的致动器单元。 致动器单元包括形成为堆叠的电子部件。 该组件包括多个电极层和多个材料层，它们交替布置并对电场的施加作出反应。 该部件还具有在部件的至少一个周向侧上电连接到相应电极层的两个外部电极。 此外，致动器单元具有在部件的冲程方向上以力配合的方式联接到部件的压电传感器。 当部件运行时，传感器检测由传感器元件作为布置在相对端面上的两个电极之间的电压或电荷产生的力。 电极从导电材料直接沉积到传感器元件的至少端面上。

    Method for Operating a Fuel Injection System with Pressure Reduction, and a Fuel Injection System Comprising a Fuel Injection Valve with a Servo Valve
    8.
    发明申请
    Method for Operating a Fuel Injection System with Pressure Reduction, and a Fuel Injection System Comprising a Fuel Injection Valve with a Servo Valve 有权
    用于操作具有减压的燃料喷射系统的方法，以及包括具有伺服阀的燃料喷射阀的燃料喷射系统

    公开(公告)号：US20150053181A1

    公开(公告)日：2015-02-26

    申请号：US14382054

    申请日：2013-03-18

    Applicant: CONTINENTAL AUTOMOTIVE GMBH

    Inventor： Hong Zhang ,  Detlev Schöppe

    IPC: F02M63/02 ,  F02M51/06

    CPC classification number: F02M63/023 ,  F02D41/2096 ,  F02D41/3872 ,  F02M47/027 ,  F02M51/0603 ,  F02M57/005 ,  F02M63/0026 ,  F02M63/02 ,  F02M2200/21 ,  F02M2200/244

    Abstract: A method for operating a fuel injection system with pressure reduction, and a fuel injection system that includes a fuel injection valve with a servo valve are provided. The method for operating a fuel injection system includes performing a desired pressure reduction in the pressure accumulator using at least one fuel injection valve of the fuel injection system. This is achieved by opening a servo valve in the fuel injection valve, which is opened, during a pressure reduction phase, just wide enough that the actual closing element remains closed and as a result no fuel injection process takes place.

    Abstract translation: 提供一种用于操作具有减压的燃料喷射系统的方法，以及包括具有伺服阀的燃料喷射阀的燃料喷射系统。 用于操作燃料喷射系统的方法包括使用燃料喷射系统的至少一个燃料喷射阀来执行压力蓄能器中期望的压力降低。 这是通过打开燃料喷射阀中的伺服阀来实现的，该燃料喷射阀在减压阶段打开，刚好足够宽使得实际关闭元件保持关闭，并且因此没有发生燃料喷射过程。

    Modular actuator unit for a fuel injection valve
    9.
    发明授权
    Modular actuator unit for a fuel injection valve 有权

    公开(公告)号：US09709186B2

    公开(公告)日：2017-07-18

    申请号：US14781443

    申请日：2014-04-16

    Applicant: Continental Automotive GmbH

    Inventor： Claus Zumstrull

    IPC: F16K31/00 ,  F02M57/00 ,  F16K7/12

    CPC classification number: F16K31/007 ,  F02M57/005 ,  F02M2200/244 ,  F16K7/12 ,  F16K31/008

    Abstract: An actuator unit for a fuel injection valve of a vehicle internal combustion engine. The actuator unit includes an electronic component formed as a stack. The component includes a plurality of electrode layers and a plurality of material layers which are arranged alternately and react to the application of an electric field. The component also has two outer electrodes electrically connected to respective electrode layers on at least one circumferential side of the component. Additionally, the actuator unit has a piezoelectric sensor coupled to the component in a force-fitting manner, in the stroke direction of the component. When the component is in operation, the sensor detects a force generated by the component, as a voltage or charge between two electrodes arranged on opposing end faces, of a sensor element. The electrodes are deposited from an electrically conductive material directly onto at least the end faces of the sensor element.

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