PIEZOELECTRIC MICROBLOWER
    22.
    发明申请
    PIEZOELECTRIC MICROBLOWER 有权
    压电显微镜

    公开(公告)号:US20110070109A1

    公开(公告)日:2011-03-24

    申请号:US12959462

    申请日:2010-12-03

    CPC classification number: F04B45/047 F04B2201/0806 F04B2201/12

    Abstract: A piezoelectric microblower includes a vibrating plate including a piezoelectric element and arranged to be driven in a bending mode by applying a voltage of a predetermined frequency to the piezoelectric element, and a blower body arranged to fix both ends or a periphery of the vibrating plate and to define a blower chamber between the blower body and the vibrating plate, an opening being provided in a portion of the blower body facing a central portion of the vibrating plate. In a portion of the blower chamber corresponding to the central portion of the vibrating plate, a partition is provided around the opening and a resonance space is defined inside of the partition. A size of the resonance space is set such that a driving frequency of the vibrating plate and a Helmholtz resonance frequency of the resonance space correspond to each other.

    Abstract translation: 一种压电微型鼓风机包括:振动板,其包括压电元件,并配置为通过向压电元件施加预定频率的电压而以弯曲模式驱动;以及鼓风机主体,其布置成将振动板的两端或周边固定,以及 在所述鼓风机主体和所述振动板之间限定鼓风机室,所述鼓风机主体的面向所述振动板的中心部分的部分设置有开口。 在对应于振动板的中心部分的鼓风机室的一部分中,在开口周围设置隔板,并且在隔板内限定共振空间。 谐振空间的大小被设定为使得振动板的驱动频率和谐振空间的亥姆霍兹共振频率彼此对应。

    MARINE STEERING SYSTEM HAVING DUAL HYDRAULIC AND ELECTRONIC OUTPUT
    24.
    发明申请
    MARINE STEERING SYSTEM HAVING DUAL HYDRAULIC AND ELECTRONIC OUTPUT 有权
    具有双液压和电子输出的海洋转向系统

    公开(公告)号:US20030033969A1

    公开(公告)日:2003-02-20

    申请号:US09931745

    申请日:2001-08-20

    Inventor: Peter Doetsch

    Abstract: A marine steering system operable in either power steering or manual hydraulic modes. The system employs a modified helm pump having a single rotatable input shaft connectable to a steering wheel and dual hydraulic and electronic output. An encoder, such as an optical incremental encoder or hall effect device, is mechanically coupled to the input shaft for generating an electronic steering control signal representative of the change in position of the steering wheel. In the power steering mode, the electronic steering signal is processed by an amplifier controlling the operation of an auxiliary pumpset connected to the rudder steering cylinder. A bypass manifold disposed between the helm pump and the steering cylinder disables the hydraulic steering system in the power steering mode. In the event of power failure, the bypass manifold valves are opened and the system automatically switches to manual hydraulic steering.

    Abstract translation: 可在动力转向或手动液压模式下操作的船用转向系统。 该系统采用改进的舵泵,其具有可连接到方向盘的单个可旋转输入轴和双液压和电子输出。 诸如光学增量编码器或霍尔效应装置的编码器机械地联接到输入轴,以产生代表方向盘位置变化的电子转向控制信号。 在动力转向模式中,电子转向信号由控制连接到方向舵缸的辅助泵组的操作的放大器进行处理。 设置在舵泵和转向缸之间的旁通歧管在动力转向模式下禁止液压转向系统。 在断电的情况下,旁路歧管阀打开,系统自动切换到手动液压转向。

    Motor passive direction indicator and reversal alarm
    26.
    发明授权
    Motor passive direction indicator and reversal alarm 失效
    电机被动方向指示灯和反转报警

    公开(公告)号:US5649808A

    公开(公告)日:1997-07-22

    申请号:US472938

    申请日:1995-06-06

    CPC classification number: F04B43/1253 F04B2201/12 F04B2203/02 F04B2207/70

    Abstract: A method and apparatus for preventing accidental manual rotor reversal in a peristaltic pump is provided. A peristaltic pump may be provided with a hand crank or the like to drive a rotor assembly of the pump manually in the event of failure of the electric motor drive of the pump. An indicator may provide information to the pump operator to inform the operator of the direction in which the pump was rotating when last driven by the electric motor. Further an alarm device may alert the operator when the operator is attempting to rotate the pump in the direction opposite the direction in which the pump was rotating when last driven by the electric motor or the direction last selected by the operator before loss of power.

    Abstract translation: 提供一种用于防止在蠕动泵中意外手动转子反转的方法和装置。 蠕动泵可以设置有手动曲柄等,以在泵的电动机驱动器发生故障的情况下手动驱动泵的转子组件。 指示器可以向泵操作者提供信息,以便在最后一次由电动机驱动时通知操作者泵的转动方向。 此外,当操作者试图在最后一次被电动机驱动的情况下或在操作者失去动力之前最后选择的方向之前试图使泵旋转泵时,报警装置可以提醒操作者。

    Crankcase pressure control for swash plate compressor
    29.
    发明公开
    Crankcase pressure control for swash plate compressor 审中-公开
    Regelung des Kurbelkammerdrucks在einem Taumelscheibenkompressor

    公开(公告)号:EP1065375A2

    公开(公告)日:2001-01-03

    申请号:EP00113702.5

    申请日:2000-06-28

    Abstract: A piston-type compressor includes a crank chamber (15), a drive shaft (16), cylinder bores (33), and a valve plate (14). The drive shaft (16) passes through the crank chamber (15), and the valve plate is fixed to the rear of the cylinder bores (33). The drive shaft (16) includes a valve body (47). The rear end surface (47a) of the valve body (47) and the front surface of the valve plate (14) form a valve mechanism (46). The valve mechanism (46) is located in the pressurizing passage (18, 12a, 44). The valve mechanism (46) adjusts the opening size of the pressurizing passage (18, 12a, 44) in accordance with the axial movement of the drive shaft (16) from a reference position. This maintains an appropriate relationship between the pressure in the cylinder bores (33) and the pressure in the crank chamber (15).

    Abstract translation: 活塞式压缩机包括曲柄室(15),驱动轴(16),气缸孔(33)和阀板(14)。 驱动轴(16)通过曲柄室(15),并且阀板固定在气缸孔(33)的后部。 驱动轴(16)包括阀体(47)。 阀体(47)的后端面(47a)和阀板(14)的前表面形成阀机构(46)。 阀机构(46)位于加压通路(18,12a,44)中。 阀机构(46)根据驱动轴(16)从基准位置的轴向移动来调节加压通路(18,12a,44)的开口尺寸。 这保持了气缸孔(33)中的压力和曲柄室(15)中的压力之间的适当关系。

    ELECTRONIC CAMSHAFT MOTOR CONTROL FOR PISTON PUMP
    30.
    发明申请
    ELECTRONIC CAMSHAFT MOTOR CONTROL FOR PISTON PUMP 审中-公开
    活塞泵的电子凸轮轴电机控制

    公开(公告)号:WO2008039787A3

    公开(公告)日:2008-08-21

    申请号:PCT/US2007079436

    申请日:2007-09-25

    Abstract: A two (or more) piston pump system (10) is provided with both pumps (12) being crank (14) driven. The system does not have a mechanical camshaft, but a software algorithm, which acts like one in controller (20). The algorithm will LEARN and create a unique speed profile, which will mimic the mechanical camshaft. For practical purposes the speed profile of output gear is called Cam profile with software acting as an imaginary camshaft. The algorithm utilizes Crank Angle Estimation, Learn Curve Generation, Smoothing and Advance Timing Calculation.

    Abstract translation: 两个(或更多)活塞泵系统(10)设有两个驱动曲柄(14)的泵(12)。 该系统没有机械凸轮轴,而是一种软件算法,在控制器(20)中就像一个一样。 该算法将学习并创建一个独特的速度曲线,这将模拟机械凸轮轴。 出于实用目的,输出齿轮的速度曲线称为凸轮曲线,软件充当虚拟凸轮轴。 该算法利用曲柄角估计,学习曲线生成,平滑和高级时序计算。

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