Liquid ring vacuum pump with cavitation regulation
    41.
    发明授权
    Liquid ring vacuum pump with cavitation regulation 有权
    具有气蚀调节的液环真空泵

    公开(公告)号:US09169838B2

    公开(公告)日:2015-10-27

    申请号:US14364083

    申请日:2012-12-12

    Abstract: A method for operating a liquid ring vacuum pump employs taking vibration measurements of the pump and comparing the measurements with a prescribed cavitation threshold. In addition, a measurement representing the liquid content in the gas to be conveyed is taken. This measurement is compared with a prescribed threshold. The rotational speed of the liquid ring vacuum pump is reduced if the prescribed cavitation threshold has been exceeded and the liquid content is less than the prescribed threshold. The rotational speed is increased if the prescribed cavitation threshold has been exceeded and the liquid content is greater than the prescribed threshold. A liquid ring vacuum pump is designed for implementing the method. Due to the regulation depending on the oscillations of the pump, the pump can be operated near the cavitation boundary without any risk of damage.

    Abstract translation: 用于操作液环真空泵的方法采用泵的振动测量并将测量值与规定的气蚀阈值进行比较。 此外,取出表示待输送气体中的液体含量的测量值。 将该测量与规定的阈值进行比较。 如果超过规定的气蚀阈值且液体含量低于规定的阈值,则液环真空泵的转速会降低。 如果超过了规定的气蚀阈值并且液体含量大于规定的阈值,则转速增加。 液环真空泵设计用于实施该方法。 由于根据泵的振荡的调节,泵可以在空化边界附近操作,而不会有损坏的风险。

    INDUCED HOLLOW SPIRAL DRIVING APPARATUS
    42.
    发明申请
    INDUCED HOLLOW SPIRAL DRIVING APPARATUS 审中-公开
    诱导中空螺旋驱动装置

    公开(公告)号:US20150292504A1

    公开(公告)日:2015-10-15

    申请号:US14440600

    申请日:2013-10-16

    Applicant: Jun WANG

    Inventor: Jun Wang

    Abstract: An induced hollow screw driving apparatus comprises a shell (6) shaped like a round pipe and having a central through hole in an axial direction; a motor rotor (1) is disposed in the through hole of the shell (6) through two bearings (4) and has a central through hole in an axial direction; screw rings (2.1 and 2.2) used for driving are disposed on an inner wall of the through hole of the motor rotor (1); a drive block (5) is inserted in the sealed shell (6) to induce an outer wall (3) of the rotor (1), so as to drive the rotor (1) to rotate. The screw ring driving manner of the driving apparatus has small friction and noise, and the overall driving efficiency thereof exceeds that of existing driving devices such as a propeller; the driving apparatus further has advantages such as being leakage-free, coupling-free, spark-free, cavitation-free, capable of self-speed regulation, capable of turning, magnetizable and extendable, capable of self-cleaning, maintenance-free, and having a long service life.

    Abstract translation: 诱导中空丝杠驱动装置包括形状为圆形管的壳体(6),并且在轴向具有中心通孔; 电动机转子(1)通过两个轴承(4)设置在壳体(6)的通孔中并具有沿轴向的中心通孔; 用于驱动的​​螺旋环(2.1和2.2)设置在电动机转子(1)的通孔的内壁上; 驱动块(5)插入到密封壳体(6)中以引导转子(1)的外壁(3),以驱动转子(1)旋转。 驱动装置的螺旋环驱动方式具有较小的摩擦和噪音,其整体驱动效率超过现有的驱动装置如螺旋桨的驱动效率; 驱动装置还具有无泄漏,无耦合,无火花,无空化,能够自转,能够自转,可磁化和可延伸的能够进行自清洁,免维护的自调速, 使用寿命长。

    Variable Capacity Screw Compressor and Method
    43.
    发明申请
    Variable Capacity Screw Compressor and Method 审中-公开
    可变容量螺杆压缩机和方法

    公开(公告)号:US20150030489A1

    公开(公告)日:2015-01-29

    申请号:US14512992

    申请日:2014-10-13

    Abstract: A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed.

    Abstract translation: 可变容量的螺杆式压缩机包括吸入口,至少两个螺杆转子和排出口,其相对于所选择的转速被构造,该选择的转速以最佳的圆周速度运行至少一个螺杆转子,该最佳圆周速度独立于在 至少一个螺杆转子以同步电机转速为额定螺杆压缩机的容量。 电动机构造成以等于额定螺杆压缩机容量的基本上大于同步电动机转速的全负载能力的转速驱动至少一个螺杆转子。 变速驱动器接收来自控制器的指令信号,并产生以所选转速驱动电动机的控制信号。

    ROTARY COMPRESSOR UNIT AND METHOD OF CONTROLLING OPERATION THEREOF
    45.
    发明申请
    ROTARY COMPRESSOR UNIT AND METHOD OF CONTROLLING OPERATION THEREOF 审中-公开
    旋转压缩机单元及其操作控制方法

    公开(公告)号:US20080240953A1

    公开(公告)日:2008-10-02

    申请号:US12058902

    申请日:2008-03-31

    Inventor: Hideyuki KIMURA

    Abstract: The compressor unit having at least two compressors, for example a low pressure stage compressor 11 and a high pressure stage compressor 12 connected in series, of which the low pressure sage compressor 11 and high pressure stage compressor 12 are driven by driving devices 13 and 14 respectively separately or driven by a single driving device 41 via variable speed gears 43 and 44 respectively connected to each of the compressors, and rotation speed of the low pressure stage compressor 11 and that of the high pressure stage compressor 12 are controlled independently in accordance with various operating conditions of the compressor unit so that optimal load balancing of the compressors 11 and 12 is always achieved.

    Abstract translation: 压缩机单元具有至少两个压缩机,例如串联连接的低压级压缩机11和高压级压缩机12,低压级压缩机11和高压级压缩机12由驱动装置13和14驱动 分别单独驱动或通过分别连接到每个压缩机的变速齿轮43和44由单个驱动装置41驱动,低压级压缩机11和高压级压缩机12的转速根据 压缩机单元的各种操作条件总是实现压缩机11和12的最佳负载平衡。

    Oil free screw compressor
    46.
    发明授权
    Oil free screw compressor 有权
    无油螺杆压缩机

    公开(公告)号:US06948915B2

    公开(公告)日:2005-09-27

    申请号:US10645484

    申请日:2003-08-22

    Abstract: A screw compressor includes a compressor main body, a male rotor having a screw-like male tooth shape and a female rotor having a screw-like female tooth shape meshing with the screw-like male tooth shape or the male rotor. The male and female motors are provided within the compressor main body. A motor casing is operably connected to the compressor main body, and a high speed electric motor provided within the motor casing. The motor includes a motor rotor, a motor stator and a motor shaft for driving at least one of the male and female rotors. A speed ratio of the motor shaft and the at least one of the male and female rotors driven by the motor shaft is in a range of 2:1 to 1:2.

    Abstract translation: 螺杆式压缩机包括压缩机主体,具有螺旋状的阳齿形状的公转子和具有与螺旋状的阳齿形状或公转子啮合的螺旋状的阴齿形状的阴转子。 公母电动机设置在压缩机主体内。 马达壳体可操作地连接到压缩机主体,以及设置在马达壳体内的高速电动马达。 马达包括马达转子,马达定子和马达轴,用于驱动马达和转子中的至少一个转子。 电动机轴和由电动机轴驱动的阳转子和阴转子中的至少一个的转速比在2:1至1:2的范围内。

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