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1.发明授权
公开(公告)号：US6157277A
公开(公告)日：2000-12-05
申请号：US204174
申请日：1998-12-03
CPC分类号： F01L9/04 , H01F3/02 , H01F7/06 , H01F7/081 , H01F7/1638
摘要： An electromagnetic actuator is provided and includes upper and lower electromagnets. Each electromagnet includes a lamination core assembly comprising a plurality of individual stacked laminations. Upper and lower housings are provided, each having opposing end walls. The core assembly of the upper electromagnet is disposed between the end walls of the upper housing and the core assembly of the lower electromagnet is disposed between the end walls of the lower housing. An armature is mounted for movement between the core assemblies. Spacer structure is disposed between the core assemblies and contacts each of the core assemblies to prevent the core assemblies from moving towards each other. A pin provides a connection between a lamination core assembly and the end walls of an associated housing. Each housing has a contact surface between the end walls and each of the core assemblies includes a solid core member defining a central portion of each core assembly. Each of the solid core members is secured to a contact surface of an associated housing via at least one fastener.
摘要翻译： 提供电磁致动器并且包括上电磁体和下电磁体。 每个电磁体包括层叠芯组件，其包括多个单独堆叠的叠片。 提供上和下壳体，每个具有相对的端壁。 上电磁铁的芯组件设置在上壳体的端壁之间，下电磁铁的芯组件设置在下壳体的端壁之间。 安装电枢以在芯组件之间移动。 间隔结构设置在芯组件之间并与每个芯组件接触以防止芯组件相互移动。 销提供层压芯组件和相关壳体的端壁之间的连接。 每个壳体在端壁之间具有接触表面，并且每个芯组件包括限定每个芯组件的中心部分的实芯部件。 每个固体芯构件经由至少一个紧固件固定到相关壳体的接触表面。
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公开(公告)号：US5873335A
公开(公告)日：1999-02-23
申请号：US5632
申请日：1998-01-09
CPC分类号： F01L9/04 , F01L2001/0478 , F01L2009/0411
摘要： There is shown an electric motor control of the engine valves of an internal combustion engine. A brushless torque actuator controls the rotation of a cam member which provides the appropriate lift to the engine valve to move the valve from the closed to the open position. The electronic control which is connected to the actuator includes a look-up table for controlling the timing of the engine in accordance with the operation of the internal combustion engine. The electronic control operates to return the cam member to its home position closing the engine valves.
摘要翻译： 示出了内燃机的发动机气门的电动机控制。 无刷扭矩致动器控制凸轮构件的旋转，该凸轮构件向发动机气门提供适当的升程以将阀从关闭位置移动到打开位置。 连接到致动器的电子控制器包括用于根据内燃机的操作来控制发动机的定时的查找表。 电子控制器操作以将凸轮构件返回到其关闭发动机气门的原始位置。
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公开(公告)号：US6049264A
公开(公告)日：2000-04-11
申请号：US181206
申请日：1998-10-28
CPC分类号： F01L9/04 , H01F3/02 , H01F7/06 , H01F7/081 , H01F7/1638
摘要： A core assembly for an electromagnet includes a plurality of stacked laminations extending along a stacking axis. The laminations each having generally the same thickness in a direction along the stacking axis. A solid core member has opposing ends. The core member is disposed generally centrally with respect to the plurality of stacked laminations such that each end of the core member contacts a lamination of the plurality of laminations. The core member has a thickness in a direction along the stacking axis substantially greater than the thickness of a lamination. The core member also has an aperture therethrough disposed generally perpendicular to the stacking axis for receiving a shaft of an armature assembly.
摘要翻译： 用于电磁体的芯组件包括沿着堆叠轴线延伸的多个堆叠的叠片。 每个叠片在沿着堆叠轴的方向上具有大致相同的厚度。 实芯部件具有相对的端部。 芯构件相对于多个堆叠的叠片大致居中布置，使得芯构件的每个端部接触多个叠片的叠层。 芯构件沿着堆叠轴线的方向上的厚度基本上大于叠片的厚度。 芯构件还具有大致垂直于堆叠轴线布置的孔，用于接收电枢组件的轴。
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公开(公告)号：US5865371A
公开(公告)日：1999-02-02
申请号：US686936
申请日：1996-07-26
CPC分类号： F02D41/20 , F02D19/024 , F02D2041/2027 , F02D2041/2031 , F02D2041/2034 , F02D2041/2037 , F02D2200/063
摘要： An injector needle/armature assembly stroke is controlled so as to minimize opening and closing impact forces. The controlled motion eliminates or significantly reduces the problems associated with valve bounce, providing less acoustic emission, reduced wear, improved spray characteristics and better flow regulation. The current applied to the electromagnetic coil of the injector in accordance with a modified injector timing pulse waveform serves to reduce impact velocities at each end of the armature stroke. The waveform can be optimized for a class of injectors with a pulse width modulated waveform, repeatedly re-energizing and de-energizing the electromagnetic coil in accordance with an optimized on/off pulse train.
摘要翻译： 控制喷射器针/电枢组件行程以最小化打开和关闭冲击力。 控制运动消除或显着减少与阀弹跳相关的问题，提供更少的声发射，减少的磨损，改进的喷雾特性和更好的流量调节。 根据修改的喷射器定时脉冲波形施加到喷射器的电磁线圈的电流用于减小在电枢行程的每个端部处的冲击速度。 该波形可针对具有脉冲宽度调制波形的一类喷射器进行优化，根据优化的开/关脉冲序列反复重新激励和断开电磁线圈。
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公开(公告)号：US5769043A
公开(公告)日：1998-06-23
申请号：US854023
申请日：1997-05-08
申请人： James A. Nitkiewicz
发明人： James A. Nitkiewicz
摘要： A method of and apparatus for detecting engine valve motion are provided in an internal combustion engine having an electromechanical or electromagnetic valve actuator with a ferrous component that moves in a linear path with the reciprocating motion of an engine valve between its open and closed positions. The apparatus includes a stationary magnetic field source mounted in the actuator and having an axis aligned with the linear path and positioned such that, at its closest position of travel, the ferrous component alters the magnetic field flux of the magnetic field source. A sensor mounted in the longitudinal path between the stationary magnetic field source and the ferrous component and sufficiently spaced from the magnetic field source responds to an amplified change in magnetic field flux at its closest travel position, sensing the change in the magnetic field flux of the stationary magnetic field source caused by the presence and absence of the ferrous component in the closest travel position as an indicator of engine valve motion.
摘要翻译： 一种用于检测发动机气门运动的方法和装置设置在具有机电或电磁阀致动器的内燃机中，所述机电或电磁阀致动器具有随着发动机气门在其打开和关闭位置之间的往复运动而在线性路径中移动的铁元件。 该装置包括安装在致动器中的固定磁场源，并且具有与线性路径对准的轴线并且定位成使得在其最近行进位置处，铁质部件改变磁场源的磁场通量。 安装在固定磁场源和铁元件之间并与磁场源足够间隔的纵向路径中的传感器响应于其最近行程位置处的磁场通量的放大变化，感测磁场通量的变化 作为发动机气门运动的指标，在最近的行驶位置中由有色组分的存在和不存在引起的固定磁场源。
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