SKIPPING FREQUENCIES FOR VARIABLE SPEED CONTROLS
    21.
    发明申请
    SKIPPING FREQUENCIES FOR VARIABLE SPEED CONTROLS 审中-公开
    可变速度控制的飞行频率

    公开(公告)号:WO2006096288A3

    公开(公告)日:2007-11-29

    申请号:PCT/US2006005159

    申请日:2006-02-14

    Abstract: A control for an electric motor is utilized to avoid operation in or near the resonance frequencies for the electric motor and its associated system components. The resonance frequencies can be identified experimentally at the design stage, or during operation of a component and electric motor. During start-up, shutdown or frequency adjustment, the control drives the speed through the resonance frequency zones more rapidly, and also avoids operation in or near those resonance frequencies during steady state operation. In disclosed embodiments, the electric motors are associated with fans, pumps and compressors in a refrigerant system.

    Abstract translation: 利用电动机的控制来避免在电动机及其相关联的系统部件的谐振频率中或附近的操作。 谐振频率可以在设计阶段或组件和电动机的运行过程中进行实验鉴定。 在启动,停机或频率调节期间,控制器通过谐振频率区域更快地驱动速度,并且还可以在稳态运行期间避免在这些谐振频率或其附近的操作。 在所公开的实施例中,电动机与制冷剂系统中的风扇,泵和压缩机相关联。

    Piezoelectric microblower
    23.
    发明授权
    Piezoelectric microblower 有权
    压电微型鼓风机

    公开(公告)号:US08684707B2

    公开(公告)日:2014-04-01

    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。

    Vibration control of free piston machines through frequency adjustment
    24.
    发明申请
    Vibration control of free piston machines through frequency adjustment 审中-公开
    通过调节自由活塞机的振动控制

    公开(公告)号:US20070256428A1

    公开(公告)日:2007-11-08

    申请号:US11418762

    申请日:2006-05-05

    Abstract: A method and apparatus for minimizing the amplitude of mechanical vibrations of a mechanical apparatus including a linear, freely reciprocating, prime mover coupled to and driving a reciprocating mass of a driven machine in reciprocation at a driving frequency. The coupled prime mover and driven machine have a spring applying a force upon the reciprocating mass to form a resonant main system having a main system resonant frequency of reciprocation. A driving frequency range over which the driven machine operates at an acceptable efficiency of operation is determined and stored. A parameter of the operation of the mechanical apparatus, such as the amplitude of vibrations or an operating temperature, is sensed and the prime mover is driven in response to the sensed parameter at a driving frequency that is offset from the main system resonant frequency of reciprocation, is within the driving frequency range of acceptable efficiency of operation and reduces or minimizes the amplitude of mechanical vibration of the mechanical apparatus under existing operating conditions.

    Abstract translation: 一种用于最小化机械装置的机械振动的振幅的方法和装置,包括以驱动频率往复运动的联动到驱动机器的往复运动的质量的线性的,自由往复运动的原动机。 联接原动机和从动机具有在往复运动的质量块上施加力的弹簧,以形成具有主系统谐振频率的往复运动的谐振主系统。 确定并存储从动机器以可接受的操作效率运行的驱动频率范围。 感测机械装置的操作的参数,例如振动的振幅或工作温度,并且原动机响应于以与主系统共振频率的往复运动偏移的驱动频率的感测参数而被驱动 在可接受的操作效率的驱动频率范围内,并且在现有操作条件下降低或最小化机械设备的机械振动的幅度。

    Apparatus and method of determining compressor structural resonant
frequency
    25.
    发明授权
    Apparatus and method of determining compressor structural resonant frequency 失效
    确定压缩机结构谐振频率的装置和方法

    公开(公告)号:US4842491A

    公开(公告)日:1989-06-27

    申请号:US155431

    申请日:1988-02-12

    Applicant: Chih M. Lin

    Inventor: Chih M. Lin

    CPC classification number: F04B51/00 F04B2201/0806 F04B2207/045 Y10S181/403

    Abstract: Apparatus and method for selectively determining the resonant frequency of a gas compressor including a compressor drive motor and a muffler in a generally spaced relationship, and an apparatus mechanically linking the compressor drive motor and the muffler. The apparatus as disclosed in one embodiment includes two conical frustums as wedge members, each having an axial bore accommodating a single non-resilient shaft for joining the conical frustums such that the shaft may be adjusted to force the wedge members closer together, biasing the muffler with respect to the compressor drive motor, and thereby adjusting the resonant frequency of the compressor structure to a determined resonant frequency.

    Abstract translation: 用于选择性地确定包括压缩机驱动马达和消声器的气体压缩机的谐振频率的装置和方法,所述压缩机驱动马达和消声器以大致间隔的关系,以及将压缩机驱动马达和消声器机械连接的装置。 如在一个实施例中公开的装置包括两个锥形截锥体作为楔形构件,每个具有一个轴向孔,该轴向孔容纳用于接合锥形截头锥体的单个非弹性轴,使得该轴可被调整以迫使楔形构件更靠近在一起, 相对于压缩机驱动电动机,从而将压缩机结构的谐振频率调整到确定的谐振频率。

    Compressor System
    27.
    发明公开
    Compressor System 审中-公开
    压缩机系统

    公开(公告)号:EP1607631A3

    公开(公告)日:2006-03-22

    申请号:EP05103404.9

    申请日:2005-04-26

    Abstract: A driving unit and control method for a reciprocating compressor for controlling a frequency of input power so that an operational frequency of the compressor follows a resonant frequency, which varies depending on a variation of the load applied to the compressor. The reciprocating compressor includes an inverter to adjust the frequency of the input power, so that the frequency of the input power is set at a value corresponding to the resonant frequency by the inverter. The resonant frequency is set in a range of 60% to 90% of the normal power frequency. The compressor further includes a controller to control the frequency of the input power so that the operational frequency of the compressor follows the resonant frequency, which varies depending on the operation of the compressor.

    PIEZOELECTRIC MICROBLOWER
    28.
    发明公开
    PIEZOELECTRIC MICROBLOWER 有权
    压电微型电动机

    公开(公告)号:EP2312158A1

    公开(公告)日:2011-04-20

    申请号:EP09758272.0

    申请日:2009-06-01

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

    Abstract: [Object] To provide a piezoelectric microblower that can be made compact while still attaining good blower characteristics.
    [Solution] In part of a blower chamber 4 corresponding to a central portion of a vibrating plate 50, a resonance space 34 is formed by providing a partition 33 around an opening 31 and the size of the resonance space 34 is set such that the driving frequency of the vibrating plate 50 and the Helmholtz resonant frequency of the resonance space 34 correspond to each other. A gap δ is formed between the partition 33 and the vibrating plate 50 so that there is no contact therebetween when the vibrating plate is displaced. An increase in the flow rate can be attained by utilizing resonance of air.

    Abstract translation: 本发明的目的是提供一种压电微型鼓风机,其可以制造得更紧凑,同时还能获得良好的鼓风机特性。 [解决方案]在对应于振动板50的中心部分的鼓风机室4的一部分中,通过在开口31周围设置隔板33而形成共振空间34,并且共振空间34的尺寸被设定成使得驾驶 振动板50的频率和谐振空间34的亥姆霍兹共振频率彼此对应。 在隔板33和振动板50之间形成间隙δ,使得当振动板移位时它们之间不存在接触。 利用空气的共振可以提高流量。

    Compressor System
    29.
    发明公开
    Compressor System 审中-公开
    Kompressorsystem

    公开(公告)号:EP1607631A2

    公开(公告)日:2005-12-21

    申请号:EP05103404.9

    申请日:2005-04-26

    Abstract: A driving unit and control method for a reciprocating compressor for controlling a frequency of input power so that an operational frequency of the compressor follows a resonant frequency, which varies depending on a variation of the load applied to the compressor. The reciprocating compressor includes an inverter to adjust the frequency of the input power, so that the frequency of the input power is set at a value corresponding to the resonant frequency by the inverter. The resonant frequency is set in a range of 60% to 90% of the normal power frequency. The compressor further includes a controller to control the frequency of the input power so that the operational frequency of the compressor follows the resonant frequency, which varies depending on the operation of the compressor.

    Abstract translation: 一种用于控制输入功率频率的往复式压缩机的驱动单元和控制方法,使得压缩机的工作频率遵循谐振频率,其根据施加到压缩机的负载的变化而变化。 往复式压缩机包括用于调节输入功率的频率的逆变器,使得输入功率的频率被设置为与逆变器相应的谐振频率的值。 谐振频率设定在正常功率频率的60%〜90%的范围内。 压缩机还包括控制器,用于控制输入功率的频率,使得压缩机的工作频率遵循根据压缩机的操作而变化的谐振频率。

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