High resolution pulse width modulation
    2.
    发明授权
    High resolution pulse width modulation 失效
    高分辨率脉宽调制

    公开(公告)号:US5023535A

    公开(公告)日:1991-06-11

    申请号:US341212

    申请日:1989-04-21

    摘要: An electrohydraulic servo system in which a microprocessor-based controller directs a pulse width modulated control signal to a servo valve for controlling flow of hydraulic fluid therethrough. Duration of each half-cycle in the pulse width modulated control signal is separately controlled by selectively incrementing or decrementing duration of the half-cycle in increments of the microprocessor clock period. Signal transition is controlled by a timer interrupt in which time required to enter the interrupt routine is measured following generation of the interrupt, and further operation is delayed by a complementary time, so that control signal transition takes place a fixed preselected number of clock periods after generation of a timer interrupt. In this way, timer interrupt latency is eliminated, and resolution of the pulse width modulated signal is enhanced through individual duration control of the signal half-cycles while maintaining a fixed modulated signal period.

    Electromagnetic fuel injector
    3.
    发明授权
    Electromagnetic fuel injector 失效
    电磁燃油喷射器

    公开(公告)号:US4360161A

    公开(公告)日:1982-11-23

    申请号:US210976

    申请日:1980-11-28

    摘要: A high flow rate electromagnetic fuel injector valve with a rapid response time is disclosed for utilization in electronic fuel injection systems. The fuel injector valve comprises a stator means and a valve assembly having a self-centering valve member reciprocally mounted in a valve housing. The valve member consists of a ball valve with a semispherical sealing surface connected by a stem to a magnetically attractable cup-shaped armature. The armature is preferably coated with a friction reducing material where it slideably contacts an armature guide bore of the injector valve during its reciprocation. The ball valve of the valve member obturates an exit orifice of the valve housing by sealing against a conical valve seat which has been coined to receive it. Adjacent to the ball valve and conical valve seat interface are vortex generating and metering orifices for the tangential entry of fuel into a swirl chamber of the valve housing. The positioning of the metering orifices, which are precisely sized by ballizing to control flow rate, is used to regulate the injector spray angle generated by the vortex of fuel entering the swirl chamber. The conical surface of the valve seat produces vortex amplification to further increase the swirl effect caused by the positioning of the entry orifices.

    摘要翻译: 公开了一种具有快速响应时间的高流量电磁燃料喷射阀,用于电子燃油喷射系统。 燃料喷射阀包括定子装置和具有往复安装在阀壳体中的自定心阀构件的阀组件。 阀构件包括球阀,其具有通过杆连接到可磁吸收的杯形电枢的半球形密封表面。 电枢优选地涂覆有减摩材料,其中它在其往复运动期间可滑动地接触喷射器阀的电枢引导孔。 阀构件的球阀通过密封抵靠已被制造成接收它的锥形阀座而堵塞阀壳体的出口孔。 邻近球阀和锥形阀座接口是涡流产生和计量孔,用于将燃料切向进入阀壳的涡流室。 使用精确尺寸通过球化来控制流量的计量孔的定位用于调节由进入涡流室的燃料涡流产生的喷射器喷射角度。 阀座的锥形表面产生涡流放大,以进一步增加由入口孔定位引起的涡流效应。

    Electromagnetic fuel injector
    4.
    发明授权
    Electromagnetic fuel injector 失效
    电磁燃油喷射器

    公开(公告)号:US4232830A

    公开(公告)日:1980-11-11

    申请号:US956692

    申请日:1978-11-01

    摘要: A high flow rate electromagnetic injector valve with a rapid response time is disclosed for utilization in a single point fuel injection system. Centrally bored end caps are fixed at the front and rear ends of a tubular injector body and a coil wound on a bobbin is disposed inside the body chamber between the end caps. The front end cap receives within its bore a valve assembly including a valve housing and a needle valve with attached armature reciprocally movable against a valve seat to obturate a metering orifice in the valve housing. The valve housing contains fuel inlets for the pressurized entry of fuel into the injector and the needle valve is ported to provide fluid communication to the armature to relieve pressure build-up. The rear end cap mounts within its bore a core member acting as a stator which extends through a central bobbin bore to form a controllable air gap adjacent the armature: the core member further contains internally an adjustment screw and ball member. The ball member and adjustment screw cooperate with a recessed closure spring positioned substantially within the armature to controllably bias the needle valve against the valve seat. Because of its recessed position, the force of the closure spring is applied substantially along the central axis of the injector valve and the ball member prevents torsional windup forces from being generated by the spring. O-ring seals for the bobbin bore are provided in compression between recesses in the bobbin and the slower contracting material of the front end cap and core member to produce extended cold temperature operation.

    摘要翻译: 公开了一种具有快速响应时间的高流量电磁喷射阀,用于单点燃料喷射系统。 中心钻孔端盖固定在管状喷射器主体的前端和后端,并且缠绕在线轴上的线圈设置在端盖之间的主体室内。 前端盖在其孔内容纳有包括阀壳体和针阀的阀组件,其具有可相对于阀座往复移动的附接电枢,以堵塞阀壳体中的计量孔。 阀壳体包含用于加压进入喷射器的燃料入口,并且针阀被移入以提供与电枢的流体连通以减轻压力积聚。 后端盖在其孔内安装有用作定子的芯构件,其延伸穿过中心筒孔以形成邻近衔铁的可控空气间隙:芯构件还内部包含调节螺钉和球构件。 球构件和调节螺钉与基本上位于衔铁内的凹入的闭合弹簧配合,以可控制地将针阀偏压抵靠阀座。 由于其凹入位置,闭合弹簧的力基本上沿着喷射器阀的中心轴线施加,并且球部件防止由弹簧产生扭转卷起力。 筒管的O形圈密封件在筒管中的凹槽和前端盖和芯部件的较慢的收缩材料之间被压缩地设置,以产生延长的冷温度操作。

    Electromagnetic fuel injector calibration
    5.
    发明授权
    Electromagnetic fuel injector calibration 失效
    电磁燃油喷射器校准

    公开(公告)号:US4254653A

    公开(公告)日:1981-03-10

    申请号:US111426

    申请日:1980-01-11

    摘要: A high flow rate electromagnetic injector valve with a rapid response time and a method for calibrating such injector is disclosed for utilization in a single point fuel injection system. Centrally bored end caps are fixed at the front and rear ends of a tubular injector body and a coil wound on a bobbin is disposed inside the body chamber between the end caps. The front end cap receives within its bore a valve assembly including a valve housing and a needle valve with attached armature reciprocally movable against a valve seat to obturate a metering orifice in the valve housing. The valve housing contains fuel inlets for the pressurized entry of fuel into the injector and the needle valve is ported to provide fluid communication to the armature to relieve pressure build-up. The rear end cap mounts within its bore a core member acting as a stator which extends through a central bobbin bore to form a controllable air gap adjacent the armature, the core member further contains internally an adjustment screw and ball member. The ball member and adjustment screw cooperate with a recessed closure spring positioned substantially within the armature to controllably bias the needle valve against the valve seat. By the adjustment of the core member and the adjustment screw both the static fuel flow and the dynamic fuel flow of the injector are respectively calibrated.

    摘要翻译: 公开了具有快速响应时间的高流量电磁喷射阀和用于校准这种喷射器的方法,以用于单点燃料喷射系统。 中心钻孔端盖固定在管状喷射器主体的前端和后端,并且缠绕在线轴上的线圈设置在端盖之间的主体室内。 前端盖在其孔内容纳有包括阀壳体和针阀的阀组件,其具有可相对于阀座往复移动的附接电枢,以堵塞阀壳体中的计量孔。 阀壳体包含用于加压进入喷射器的燃料入口,并且针阀被移入以提供与电枢的流体连通以减轻压力积聚。 后端盖在其孔内安装有用作定子的芯构件,该芯构件延伸穿过中心骨架孔以形成邻近衔铁的可控气隙,所述芯构件还内部包含调节螺钉和球构件。 球构件和调节螺钉与基本上位于衔铁内的凹入的闭合弹簧配合,以可控制地将针阀偏压抵靠阀座。 通过调节芯部件和调节螺钉,分别校准喷射器的静态燃料流量和动态燃料流量。

    Fertilizer application
    6.
    发明授权

    公开(公告)号:US10004175B1

    公开(公告)日:2018-06-26

    申请号:US15470990

    申请日:2017-03-28

    申请人: John A. Miller

    发明人: John A. Miller

    IPC分类号: A01C21/00 A01C13/00 A01C23/02

    摘要: Fertilizer is applied between the rows of growing plants or to the bases of growing plants in adjacent rows. A dirt moving member then moves dirt and any applied fertilizer from between the rows onto the bases of the growing plants in the adjacent rows. The dirt acts to seal the fertilizer and to significantly reduce fertilizer losses.

    UP CUTTING KNIFE WITH SUCTION
    7.
    发明申请
    UP CUTTING KNIFE WITH SUCTION 有权
    用切割刀切割

    公开(公告)号:US20120197279A1

    公开(公告)日:2012-08-02

    申请号:US13015257

    申请日:2011-01-27

    IPC分类号: A61B17/32

    摘要: An up-cutting knife that has particular application for minimally invasive spinal surgical procedures. The knife includes an elongated tube that is operable to be inserted through a tubular retractor used in minimally invasive surgical procedures. One end of the elongated tube includes a curved head portion having a cutting blade formed on a top surface thereof and a suction port, and an opposite end of the tube is coupled to a handle having a chamber. A suction device can be coupled to an outlet port in the handle that causes blood and other surgical material to be drawn through the tube and out of the handle.

    摘要翻译: 一种特殊应用于微创脊柱外科手术的切割刀。 刀包括细长管,其可操作地插入通过用于微创外科手术的管状牵缩器。 细长管的一端包括弯曲头部,其具有形成在其顶表面上的切割刀片和吸入口,并且该管的相对端连接到具有腔室的手柄。 抽吸装置可以联接到手柄中的出口端口,其使得血液和其它手术材料通过管被拉出并从手柄中移出。

    Mirroring Data Between Redundant Storage Controllers Of A Storage System
    9.
    发明申请
    Mirroring Data Between Redundant Storage Controllers Of A Storage System 有权
    在存储系统的冗余存储控制器之间镜像数据

    公开(公告)号:US20110131373A1

    公开(公告)日:2011-06-02

    申请号:US12627440

    申请日:2009-11-30

    IPC分类号: G06F12/08 G06F12/00 G06F12/16

    CPC分类号: G06F11/2089 G06F11/2097

    摘要: In one embodiment, the present invention includes canisters to control storage of data in a storage system including a plurality of disks. Each of multiple canisters may have a processor configured for uniprocessor mode and having an internal node identifier to identify the processor and an external node identifier to identify another processor with which it is to mirror cached data. The mirroring of cached data may be performed by communication of non-coherent transactions via the PtP interconnect, wherein the PtP interconnect is according to a cache coherent protocol. Other embodiments are described and claimed.

    摘要翻译: 在一个实施例中,本发明包括用于控制包括多个盘的存储系统中的数据存储的罐。 多个罐中的每一个可以具有配置成用于单处理器模式并具有内部节点标识符以识别处理器和外部节点标识符的处理器,以识别用于镜像缓存数据的另一个处理器。 缓存数据的镜像可以通过经由PtP互连的非相干事务的通信来执行,其中PtP互连是根据高速缓存一致性协议。 描述和要求保护其他实施例。

    Minimally Invasive Interbody Device
    10.
    发明申请
    Minimally Invasive Interbody Device 审中-公开
    微创体内器件

    公开(公告)号:US20110046743A1

    公开(公告)日:2011-02-24

    申请号:US12917089

    申请日:2010-11-01

    IPC分类号: A61F2/44

    摘要: An interbody device that restores the disc space height between two vertebrae during spinal fusion surgery. The device includes a center plate surrounded by a perimeter portion that combine to have a relatively flat configuration in one dimension and relatively wide configuration in a perpendicular dimension. After the disc space has been cleared, the device is inserted into the disc space in a direction so that the wide dimension of the device is substantially parallel to the body of the vertebrae. The device is then rotated so that the wide dimension of the device becomes perpendicular to the vertebral body so as to cause the disc space height to be restored. Bone graft material is then introduced through a fill tube coupled to the device so that the bone graft material is distributed on both sides of the center plate and into the disc space.

    摘要翻译: 一种椎体内装置,可恢复脊柱融合手术期间椎间盘高度。 该装置包括由周边部分围绕的中心板,该中心板在一个维度上组合成具有相对平坦的构造,在垂直方向上具有相对宽的构造。 在盘空间已经被清除之后,装置沿着一个方向插入到盘片空间中,使得装置的宽尺寸基本上平行于椎骨的主体。 然后使装置旋转,使得装置的宽尺寸变得垂直于椎体,以便使椎间盘空间高度恢复。 骨移植材料然后通过连接到该装置的填充管引入,使得骨移植材料分布在中心板的两侧并进入椎间盘空间。