Moving-coil electromagnetic actuator, particularly for a control valve, with resilient element incorporated in the coil
    1.
    发明授权
    Moving-coil electromagnetic actuator, particularly for a control valve, with resilient element incorporated in the coil 有权
    动圈式电磁执行机构,尤其适用于控制阀,弹性元件装在线圈中

    公开(公告)号:US06674352B2

    公开(公告)日:2004-01-06

    申请号:US09893689

    申请日:2001-06-29

    IPC分类号: H01F713

    摘要: An electromagnetic actuator, particularly for a valve for controlling the injection of fuel or fuel oil is described and comprises: a fixed permanent magnetic core, and an electrical control winding which is disposed in the magnetic field generated by the core and is movable relative to the core when an electrical current flows through the winding, in which the winding is intended to be connected to a movable member actuable by the device, in a manner such as to bring about movement of the movable member between a rest position and at least one operative position. The winding is also arranged to act on the movable member by exerting a resilient force which can hold the member in the rest position or return the member to the rest position.

    摘要翻译: 描述了一种电磁致动器,特别是用于控制燃料或燃料油喷射的阀门,它包括:一个固定的永久磁芯,以及一个电气控制绕组,它设置在由磁芯产生的磁场中并且可相对于磁芯移动 当电流流过绕组时,其中绕组旨在连接到由该装置致动的可动构件,以使得可动构件在静止位置和至少一个操作位置之间的移动 绕组还被布置成通过施加能够将构件保持在静止位置或将构件返回到静止位置的弹性力作用在可动构件上。

    Control valve with a self-compensating piezoelectric actuator
    2.
    发明授权
    Control valve with a self-compensating piezoelectric actuator 有权
    具有自补偿压电执行器的控制阀

    公开(公告)号:US06552473B2

    公开(公告)日:2003-04-22

    申请号:US09893469

    申请日:2001-06-29

    IPC分类号: H01L4108

    摘要: An actuator for a control valve includes a piezoelectric actuating member for bringing about the movement of a closure member of the valve between an open position and a closure position; the member has a reference portion for connection to a fixed portion of the device and a free portion for connection to the closure member, the free portion being movable relative to the reference portion as a result of mechanical deformations produced in the actuating member by the piezoelectric effect. The reference portion of the actuating member is controllable selectively between a condition in which it is locked in a reference position and is fixed firmly to the fixed portion of the device, and a free condition in which it is movable relative to the fixed portion.

    摘要翻译: 用于控制阀的致动器包括用于使阀门的关闭构件在打开位置和关闭位置之间运动的压电致动构件; 所述构件具有用于连接到所述装置的固定部分的参考部分和用于连接到所述封闭构件的自由部分,所述自由部分可相对于所述参考部分移动,所述自由部分由于在所述致动构件中由所述压电 影响。 致动构件的参考部分可选择性地在其被锁定在参考位置中并且牢固地固定到装置的固定部分的状态之间以及相对于固定部分可移动的自由状态下是可控的。

    System for controlling a piezoelectric actuator, in particular for the fuel injectors of a diesel engine
    3.
    发明授权
    System for controlling a piezoelectric actuator, in particular for the fuel injectors of a diesel engine 有权
    用于控制压电致动器的系统,特别是用于柴油发动机的燃料喷射器

    公开(公告)号:US06943480B2

    公开(公告)日:2005-09-13

    申请号:US10619482

    申请日:2003-07-16

    IPC分类号: F02D41/20 H01L41/08

    摘要: The system makes it possible to control at least one piezoelectric actuator having a capacitive impedance and includes a source of voltage, a control circuit branch in parallel with the source, in which the actuator is connected in series to two electronic switches each having a respective parallel diode; an energy accumulating inductor with one terminal connected between the said switches and the other connected to the voltage source; and an electronic unit operable to control the said controlled switches according to predetermined modes of operation.

    摘要翻译: 该系统使得可以控制至少一个具有电容性阻抗的压电致动器,并且包括电压源,与源并联的控制电路,其中致动器串联连接到两个电子开关,每个电子开关具有各自的平行 二极管; 一个蓄电电感器,一个端子连接在所述开关之间,另一端连接到电压源; 以及电子单元,其可操作以根据预定的操作模式来控制所述受控开关。

    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine
    4.
    发明授权
    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine 有权
    用于驱动电致动器的控制电路,特别是用于内燃机的电动燃料喷射器

    公开(公告)号:US07224565B2

    公开(公告)日:2007-05-29

    申请号:US10956071

    申请日:2004-10-04

    IPC分类号: H01H47/00 H01F13/00

    摘要: A control circuit that drives an electronic actuator. The control circuit includes a direct voltage source, a chopper circuit arranged between the source and an electric actuator, and an electronic control circuit designed to apply to the chopper circuit a command signal of the PWM type, with a predefined ON/OFF switching period and a predetermined duty cycle, for a predefined activation time, to produce a flow, within the electric actuator, of a correspondingly switched current having a nominal duration corresponding to the activation time. The control circuit detects the last whole or complete switching period included within the activation time, splits, in accordance with a predefined duty cycle, the final interval including the last complete switching period and any subsequent fraction of a switching period included within the activation time, and drives the chopper circuit in this final interval.

    摘要翻译: 驱动电子执行器的控制电路。 所述控制电路包括直流电压源,布置在所述源极和电致动器之间的斩波电路,以及电子控制电路,被设计成以预定义的ON / OFF开关周期向所述斩波电路施加所述PWM型指令信号;以及 对于预定义的激活时间,预定的占空比在电致动器内产生具有对应于激活时间的标称持续时间的相应切换电流的流。 控制电路检测包括在激活时间内的最后整个或完整的切换周期,根据预定义的占空比拆分包括最后完整切换周期的最后间隔以及包括在激活时间内的切换周期的任何后续部分, 并在最后的间隔内驱动斩波电路。

    Control circuit for predominantly inductive loads in particular
electroinjectors
    5.
    发明授权
    Control circuit for predominantly inductive loads in particular electroinjectors 失效
    主要是电感负载的控制电路,特别是电子注射器

    公开(公告)号:US5532526A

    公开(公告)日:1996-07-02

    申请号:US430869

    申请日:1995-04-28

    摘要: A control circuit for supplying a load with current having a high-amplitudeortion with a rapid leading edge, and a lower-amplitude portion. The circuit is input-connected to a low-voltage supply source, and comprises a number of actuator circuits parallel-connected between the input terminals and each including a capacitor and a load. Each actuator circuit also comprises a first controlled switch between the respective load and a reference line, for enabling energy supply and storage by the respective load. A second controlled switch is provided between the capacitor line and the load line, for rapidly discharging the capacitors into the load selected by the first switch and recirculating the load current, or for charging the capacitors with the recirculated load current.

    摘要翻译: 一种用于向负载提供具有快速前沿的高幅度部分的电流和较低振幅部分的控制电路。 该电路输入连接到低压电源,并且包括并联在输入端子之间的各个致动器电路,并且每个致动器电路包括电容器和负载。 每个致动器电路还包括在相应的负载和参考线之间的第一受控开关,用于使相应负载能量供应和存储。 在电容器线路和负载线路之间提供第二受控开关,用于将电容器快速放电到由第一开关选择的负载中并再循环负载电流,或者用再循环负载电流对电容器充电。

    Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency
    6.
    发明授权
    Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency 有权
    用于以高效率控制电感负载,特别是电致动器的电路

    公开(公告)号:US07382065B2

    公开(公告)日:2008-06-03

    申请号:US10867752

    申请日:2004-06-16

    IPC分类号: H02M3/158 H02M3/135 H01F7/18

    摘要: The control circuit comprises a source of dc voltage, a first electronic switch, interposed between a first terminal of the voltage source and a corresponding first terminal of the load, a second electronic switch, interposed between the other or second terminal of the load and the other or second terminal of the source, a current recirculation device, including a diode connected between the said first terminal of the load and the other or second terminal of the voltage source to allow a circulation current in the load when the first switch is open, and a control circuit arranged to control the switches in a predetermined manner. The recirculation device further includes a third electronic switch disposed between the first terminal of the load and the other or second terminal of the voltage source, and the control unit is arranged to control this third switch in a synchronous manner, but in phase opposition, in relation to the first switch.

    摘要翻译: 所述控制电路包括直流电源,插入所述电压源的第一端和所述负载的对应的第一端之间的第一电子开关,插入在所述负载的另一端或第二端之间的第二电子开关, 源极的另一个或第二端子,电流再循环装置,包括连接在负载的所述第一端子和电压源的另一端子或第二端子之间的二极管,以在第一开关断开时允许负载中的循环电流, 以及控制电路,被布置成以预定方式控制开关。 再循环装置还包括设置在负载的第一端子和电压源的另一端子或第二端子之间的第三电子开关,并且控制单元被布置成以同步方式控制该第三开关,但是相位相反地 与第一个开关的关系。

    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine
    7.
    发明申请
    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine 有权
    用于驱动电致动器的控制电路,特别是用于内燃机的电动燃料喷射器

    公开(公告)号:US20050111160A1

    公开(公告)日:2005-05-26

    申请号:US10956071

    申请日:2004-10-04

    摘要: The control circuit comprises: a direct voltage source; a chopper circuit arranged between the source and an electric actuator; and an electronic control circuit designed to apply to the chopper circuit a command signal of the PWM type, with a predefined ON/OFF switching period and a predetermined duty cycle, for a likewise predefined activation time, so as to produce a flow, within the electric actuator, of a correspondingly choppered current having a nominal duration corresponding to the activation time. The unit being arranged to: detect the last whole or complete switching period included within the activation time; allocate in accordance with a predefined duty cycle the final interval comprising said last complete switching period and any subsequent fraction of a switching period included within said activation time, and correspondingly drive the chopper circuit in this final interval.

    摘要翻译: 所述控制电路包括:直流电压源; 布置在源和电致动器之间的斩波电路; 以及电子控制电路,被设计成对于同样预定的激活时间,以预定的ON / OFF切换周期和预定的占空比向斩波电路施加PWM类型的命令信号,以产生流 电动执行器,具有对应于激活时间的标称持续时间的相应选择的电流。 所述单元被布置成:检测包括在激活时间内的最后整个或完整切换周期; 根据预定义的占空比分配包括所述最后完成切换周期的最后间隔以及包括在所述激活时间内的切换周期的任何后续分数,并且在该最后间隔中相应地驱动斩波电路。

    Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency
    8.
    发明申请
    Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency 有权
    用于以高效率控制电感负载,特别是电致动器的电路

    公开(公告)号:US20050017583A1

    公开(公告)日:2005-01-27

    申请号:US10867752

    申请日:2004-06-16

    摘要: The control circuit comprises a source of dc voltage, a first electronic switch, interposed between a first terminal of the voltage source and a corresponding first terminal of the load, a second electronic switch, interposed between the other or second terminal of the load and the other or second terminal of the source, a current recirculation device, including a diode connected between the said first terminal of the load and the other or second terminal of the voltage source to allow a circulation current in the load when the first switch is open, and a control circuit arranged to control the switches in a predetermined manner. The recirculation device further includes a third electronic switch disposed between the first terminal of the load and the other or second terminal of the voltage source, and the control unit is arranged to control this third switch in a synchronous manner, but in phase opposition, in relation to the first switch.

    摘要翻译: 所述控制电路包括直流电源,插入所述电压源的第一端和所述负载的对应的第一端之间的第一电子开关,插入在所述负载的另一端或第二端之间的第二电子开关, 源极的另一个或第二端子,电流再循环装置,包括连接在负载的所述第一端子和电压源的另一端子或第二端子之间的二极管,以在第一开关断开时允许负载中的循环电流, 以及控制电路,被布置成以预定方式控制开关。 再循环装置还包括设置在负载的第一端子和电压源的另一端子或第二端子之间的第三电子开关,并且控制单元被布置成以同步方式控制该第三开关,但是相位相反地 与第一个开关的关系。