Apparatus and method for controlling operation of reciprocating motor compressor
    141.
    发明授权
    Apparatus and method for controlling operation of reciprocating motor compressor 失效
    往复式电机压缩机运行控制装置及方法

    公开(公告)号:US07402977B2

    公开(公告)日:2008-07-22

    申请号:US11180580

    申请日:2005-07-14

    Abstract: An apparatus for controlling an operation of a reciprocating motor compressor includes a current integrator for integrating an alternating current applied to a motor of the compressor during each one cycle thereof; and a controller for differently controlling a firing angle of a triac during the positive phase and the firing angle of the triac during the negative phase of the AC voltage applied to the motor based on the integrated value of the current. A loss in the motor can be reduced by avoiding presence of a DC component in the current applied to the motor of the compressor.

    Abstract translation: 一种用于控制往复式电动机压缩机的操作的装置,包括:电流积分器,用于对施加到压缩机的每个循环中的电动机的交流电进行积分; 以及控制器,用于根据电流的积分值,在施加到电动机的交流电压的负相位期间不同地控制三端双向可控硅开关的触发角和三端双向可控硅开关的触发角。 可以通过避免在施加到压缩机的电动机的电流中存在DC分量来降低电动机的损耗。

    Apparatus and method for controlling operation of compressor
    144.
    发明申请
    Apparatus and method for controlling operation of compressor 失效
    控制压缩机运行的装置和方法

    公开(公告)号:US20060153688A1

    公开(公告)日:2006-07-13

    申请号:US11108670

    申请日:2005-04-19

    Abstract: An apparatus for controlling an operation of a compressor includes a controller for generating a control signal for selecting an operation mode of a compressor according to an operation load of the compressor; a first switching unit connected to a motor consisting of a main coil and a sub-coil and selecting the main coil or both the main coil and the sub-coil according to the control signal; first and second capacitors electrically connected with the first switching unit; and a second switching unit connected to the first capacitor and selectively connecting the first capacitor in parallel to the second capacitor according to the control signal.

    Abstract translation: 用于控制压缩机的操作的装置包括:控制器,用于根据压缩机的操作负载产生用于选择压缩机的操作模式的控制信号; 连接到由主线圈和子线圈组成的电动机的第一开关单元,并且根据控制信号选择主线圈或两者的主线圈和子线圈; 与第一开关单元电连接的第一和第二电容器; 以及第二开关单元,连接到第一电容器,并且根据控制信号选择性地将第一电容器与第二电容器并联连接。

    Control system for the movement of a piston
    145.
    发明申请
    Control system for the movement of a piston 审中-公开
    活塞运动控制系统

    公开(公告)号:US20060140777A1

    公开(公告)日:2006-06-29

    申请号:US10535528

    申请日:2002-11-19

    Abstract: A control system is provided for controlling the movement of the piston of the fluid-pumping device, the piston being displaceable in a block of the fluid-pumping device and being driven by a motor fed by a voltage, comprising a semiconductor electronic system cyclically applying the voltage to the motor to move the piston, a resistive element, a capacitive element, a piston-position sensor to indicate the passage of the piston by a point at the block, the capacitive element being charged by means of the resistive element, at each cycle of application of voltage to the motor, the capacitive element being discharged, at least partly, when the piston passes by the point.

    Abstract translation: 提供了一种控制系统,用于控制流体泵送装置的活塞的运动,该活塞可在流体泵送装置的一个块中移动,并由电动机驱动,电动机由电动机驱动,该电动机包括循环施加的半导体电子系统 电动机移动活塞的电压,电阻元件,电容元件,活塞位置传感器,以指示活塞在块处的点通过,电容元件通过电阻元件被充电,在 每个循环向电动机施加电压,电容元件至少部分地在活塞经过点时被排出。

    Adjustable crankpin throw structure having improved throw stabilization means
    146.
    发明授权
    Adjustable crankpin throw structure having improved throw stabilization means 失效
    具有改进的抛掷稳定装置的可调曲柄销扔结构

    公开(公告)号:US06953324B1

    公开(公告)日:2005-10-11

    申请号:US09584183

    申请日:2000-05-31

    Abstract: A stabilizing structure for a throw adjusting eccentric cam in a two-stage reciprocating compressor is provided. The compressor includes a block that has at least one cylinder with an associated compression chamber and piston, a crankshaft that includes an eccentric crankpin, and a reversible motor for rotating the crankshaft in a forward and a reverse direction. An eccentric, two position cam is rotatably mounted over the crankpin. The cam rotates to and operates at a first position relative to said crankpin when the motor is running in the forward direction and rotates to and operates at a second position relative to said crankpin when the motor is running in the reverse direction. The combined eccentricities of the crankpin and the cam cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. There is also provided a control for selectively operating the motor either in the forward direction or in the reverse direction.

    Abstract translation: 提供了一种用于两级往复式压缩机中的抛出调节偏心凸轮的稳定结构。 压缩机包括具有至少一个具有相关联的压缩室和活塞的气缸的块,包括偏心曲柄销的曲轴和用于沿正向和反向方向旋转曲轴的可逆电动机。 偏心的两位置凸轮可旋转地安装在曲柄销上。 当马达正向行进时,凸轮转动到相对于所述曲柄销的第一位置并且在马达沿相反方向运行时旋转到并运行在相对于所述曲柄销的第二位置处的第一位置。 曲轴销和凸轮的组合偏心使得当电动机沿正向工作时,活塞具有第一冲程,当电动机沿相反方向工作时,该活塞具有第一行程。 还提供了用于在向前方向或相反方向上选择性地操作电动机的控制。

    Digital fluid pump
    147.
    发明申请
    Digital fluid pump 有权
    数字流体泵

    公开(公告)号:US20040146417A1

    公开(公告)日:2004-07-29

    申请号:US10351040

    申请日:2003-01-24

    Inventor: Richard J. Dunn

    CPC classification number: F04B17/046 F04B49/065 F04B2201/0206

    Abstract: Digital fluid pumps having first and second electromagnetic actuators formed in part by a piston to alternately drive the piston in opposite directions for pumping purposes. The piston motion is intentionally limited so that the electromagnetic actuators may operate with a high flux density to provide an output pressure higher than that obtained with conventional solenoid actuated pumps. The electromagnetic actuator coils are electrically pulsed for each pumping cycle as required to maintain the desired fluid flow and output pressure, with the piston being magnetically latchable at one or both extreme positions between pulses. Alternate embodiments and control methods and systems are disclosed.

    Abstract translation: 数字流体泵具有由活塞部分地形成的第一和第二电磁致动器,以交替地驱动活塞在相反的方向用于泵送目的。 活塞运动被有意地限制,使得电磁致动器可以以高通量密度操作,以提供高于用常规电磁致动泵获得的输出压力的输出压力。 对于每个泵送循环,电磁致动器线圈是电脉冲的,以保持期望的流体流量和输出压力,其中活塞可磁性地锁定在脉冲之间的一个或两个极端位置处。 公开了替代实施例和控制方法和系统。

    Valve arrangement for limiting piston stroke collisions in a reciprocating compressor with a linear motor
    148.
    发明授权
    Valve arrangement for limiting piston stroke collisions in a reciprocating compressor with a linear motor 失效
    用于限制具有直线电动机的往复式压缩机中的活塞冲程冲​​程的阀装置

    公开(公告)号:US06644945B2

    公开(公告)日:2003-11-11

    申请号:US10000554

    申请日:2001-11-16

    Abstract: A reciprocating compressor includes a linear motor having a piston reciprocating inside a cylinder. A cylinder head is provided with suction and discharge orifices. A valve means is mounted inside the cylinder and has an operative position, seated against the discharge orifice. The operative position is defined when the top of the piston is within a certain distance from the cylinder head. The distance is defined, so that, at the end of the compression stroke of the piston, a determined pressure is reached inside the cylinder, and the pressure results in a force on the piston. The force is opposite to a force which is impelling the piston and which is sufficient to interrupt its compression stroke before impacting the cylinder head.

    Abstract translation: 往复式压缩机包括具有在气缸内往复运动的活塞的线性电动机。 气缸盖设有抽吸和排出孔。 阀装置安装在气缸内,具有一个操作位置,抵靠着排放口。 当活塞的顶部与气缸盖在一定距离内时,确定操作位置。 该距离被限定,使得在活塞的压缩行程结束时,在气缸内部达到确定的压力,并且该压力导致活塞上的力。 该力与推动活塞的力相反,并且足以在撞击气缸盖之前中断其压缩行程。

    Piston stroke limiting device for a reciprocating compressor
    149.
    发明申请
    Piston stroke limiting device for a reciprocating compressor 失效
    用于往复式压缩机的活塞行程限位装置

    公开(公告)号:US20030183073A1

    公开(公告)日:2003-10-02

    申请号:US10398500

    申请日:2003-05-23

    Inventor: Dietmar E Lilie

    CPC classification number: F04B49/24 F04B35/045 F04B2201/0201 F04B2201/0206

    Abstract: A piston stroke limiting device for a reciprocating compressor of the type including a piston (2) reciprocating inside a cylinder (3), which is closed by a cylinder head (4) and defines, between the latter and the top of the piston (2), a compression chamber (5), said device comprising: a driving element (40) provided in one of the parts defined by the piston (2) and the cylinder head (4) and projecting to the inside of the compression chamber (5), in order to touch the other of said parts when the piston (2) surpasses a predetermined nominal position at the end of the compression stroke; and a relief valve (60), which is selectively displaced from a closed condition, in which it is seated on a respective valve seat (51) defined in a relief passage (50) communicating the compression chamber (5) with a region of the compressor subject to a substantially lower operational pressure, to an open condition, by action of the driving element (40), when the piston (2) surpasses said predetermined nominal position at the end of the compression stroke.

    Abstract translation: 一种用于往复式压缩机的活塞冲程限制装置,其包括在气缸(3)内往复运动的活塞(2),所述活塞(2)由气缸盖(4)封闭并且在活塞(2)的顶部和活塞 ),压缩室(5),所述装置包括:驱动元件(40),设置在由活塞(2)和气缸盖(4)限定的部分中的一个部分中并且突出到压缩室(5)的内部 ),当活塞(2)在压缩冲程结束时超过预定的标称位置时,为了接触所述部件中的另一个; 以及安全阀(60),其被选择性地从关闭状态移位,其中它位于限定在与压缩室(5)连通的释放通道(50)中的相应阀座(51)上, 当压缩冲程结束时活塞(2)超过所述预定的标称位置时,通过驱动元件(40)的作用,经受基本上较低的操作压力的压缩机处于打开状态。

Patent Agency Ranking