Compressor with flooded start control
    4.
    发明授权
    Compressor with flooded start control 有权
    压缩机与淹没启动控制

    公开(公告)号:US09194393B2

    公开(公告)日:2015-11-24

    申请号:US14250704

    申请日:2014-04-11

    Inventor: Hung M. Pham

    Abstract: A system and method for flooded start control of a compressor for a refrigeration system is provided. A temperature sensor generates temperature data corresponding to at least one of a compressor temperature and an ambient temperature. A control module receives the temperature data, determines an off-time period since the compressor was last on, determines an amount of liquid present in the compressor based on the temperature data and the off-time period, compares the amount of liquid with a predetermined threshold, and, when the amount of liquid is greater than the predetermined threshold, operates the compressor according to at least one cycle including a first time period during which the compressor is on and a second time period during which the compressor is off.

    Abstract translation: 提供了一种用于制冷系统的压缩机的淹没启动控制的系统和方法。 温度传感器产生对应于压缩机温度和环境温度中的至少一个的温度数据。 控制模块接收温度数据,确定自压缩机最后一次起的关闭时间段,基于温度数据和关闭时间段确定压缩机中存在的液体量,将液体的量与预定的 并且当所述液体的量大于所述预定阈值时,根据至少一个循环来操作所述压缩机,所述至少一个循环包括所述压缩机打开的第一时间段和所述压缩机关闭的第二时间段。

    METHOD FOR CONTROLLING A COMPRESSOR OF A REFRIGERATION SYSTEM, AND REFRIGERATION SYSTEM
    5.
    发明申请
    METHOD FOR CONTROLLING A COMPRESSOR OF A REFRIGERATION SYSTEM, AND REFRIGERATION SYSTEM 有权
    用于控制制冷系统的压缩机的方法和制冷系统

    公开(公告)号:US20150198361A1

    公开(公告)日:2015-07-16

    申请号:US14416837

    申请日:2013-08-05

    Abstract: Process for regulating a compressor with motor for a refrigerating system, where the temperature of the cooling site is regulated through an on-off motor mode if the temperature in the compressor exceeds an upper temperature threshold. In addition, the temperature of the cooling site is regulated through a continuous on mode of the motor as soon as the motor has cooled to a lower temperature threshold. The controller converts a variable corresponding to the cooling requirement of the cooling site into a switch signal for a valve, which results in clocked opening and closing of the valve, or uses a frequency converter, which controls the cooling liquid flow through the compressor by regulating the voltage and the frequency of the motor in that the frequency converter converts a variable corresponding to the cooling requirement of a cooling site into a voltage and a frequency for the motor.

    Abstract translation: 用于调节用于制冷系统的电动机的压缩机的过程,其中如果压缩机中的温度超过上限温度阈值,则通过开 - 关电动机模式来调节冷却位置的温度。 此外,一旦电机冷却到较低的温度阈值,冷却部位的温度就会通过马达的连续运行模式进行调节。 控制器将对应于冷却站的冷却要求的变量转换为阀门的开关信号,从而导致阀的打开和关闭,或使用变频器,该变频器通过调节控制冷却液体流过压缩机的流量 电动机的电压和频率,变频器将对应于冷却站的冷却要求的变量转换为电动机的电压和频率。

    METHOD AND APPARATUS FOR WARMING UP A VACUUM PUMP ARRANGEMENT
    7.
    发明申请
    METHOD AND APPARATUS FOR WARMING UP A VACUUM PUMP ARRANGEMENT 审中-公开
    用于加热真空泵装置的方法和装置

    公开(公告)号:US20150086387A1

    公开(公告)日:2015-03-26

    申请号:US14398119

    申请日:2013-04-24

    Abstract: A method for warming up a vacuum pump arrangement having a booster pump and a backing pump downstream of the booster pump for evacuating a process chamber includes setting the booster pump at a first speed higher than an idle speed of the booster pump when the same is in an idle mode; and controlling a backing pressure at an outlet of the booster pump within a range from 0.1 mbar to 10 mbar at least for a period of time from when the vacuum pump arrangement is activated from the idle mode to when the booster pump reaches a temperature equal to or exceeding a first predetermined threshold value. Such method is implemented in system where a controlled is configured to carry out the above-motioned actions.

    Abstract translation: 一种用于升温真空泵装置的方法,其具有在增压泵下游的增压泵和背衬泵,用于抽空处理室包括将增压泵设定为高于增压泵的怠速的第一速度,当相同时 空闲模式; 并且在所述增压泵的出口处控制背压在0.1毫巴至10毫巴的范围内,至少在从所述真空泵装置从空转模式启动到所述增压泵达到等于 或超过第一预定阈值。 这样的方法在被配置为执行上述动作的系统中实现。

    CONTROL DEVICE FOR ELECTRIC PUMP
    8.
    发明申请
    CONTROL DEVICE FOR ELECTRIC PUMP 审中-公开
    电动泵控制装置

    公开(公告)号:US20140294600A1

    公开(公告)日:2014-10-02

    申请号:US14221593

    申请日:2014-03-21

    Abstract: A control device for an electric pump, the electric pump pumping a cooling medium, the control device includes a controller configured to determine a presence of an abnormality in the electric pump when a temperature of the cooling medium is higher than a threshold value and the electric pump is locked. The threshold value being predetermined as a temperature that is higher than a freezing point of the cooling medium.

    Abstract translation: 一种用于电动泵的控制装置,电动泵泵送冷却介质,所述控制装置包括控制器,所述控制器被配置为当所述冷却介质的温度高于阈值时确定所述电动泵中的异常的存在, 泵锁定。 阈值被预先确定为比冷却介质的凝固点高的温度。

    Temperature management for electric motor driven pump
    10.
    发明授权
    Temperature management for electric motor driven pump 有权
    电动机驱动泵的温度管理

    公开(公告)号:US08038412B2

    公开(公告)日:2011-10-18

    申请号:US11758722

    申请日:2007-06-06

    CPC classification number: F04B49/10 F04B49/00 F04B53/08 F04B2201/0801

    Abstract: A hydraulic pump system is provided that includes a pump driven by an electric motor. The electric motor includes windings that receive power from a power source. In one example, a temperature sensor is arranged in proximity to hydraulic fluid associated with the pump, such as at an input of the pump. In another example, the temperature sensor measures the ambient temperature to predict the viscosity of the pump based upon cool down rates of the system. A controller monitors a temperature at the temperature sensor and commands power to be provided to the windings to generate heat. Electric motor power consumption can be monitored to determine viscosity. The heat reduces the viscosity of the hydraulic fluid. Bleed air may be selectively provided to a casing associated with the hydraulic fluid in response to a command from the controller. The controller actuates a valve to regulate the flow of bleed air to the casing to provide supplemental heat to the heat provided by the windings. In this manner, the viscosity of the hydraulic fluid is more efficiently managed to provide desired startup of the pump in cold conditions.

    Abstract translation: 提供了一种液压泵系统,其包括由电动机驱动的泵。 电动机包括从电源接收电力的绕组。 在一个示例中,温度传感器布置在与泵相关联的液压流体附近,例如在泵的输入处。 在另一个示例中,温度传感器测量环境温度以基于系统的冷却速率来预测泵的粘度。 控制器监视温度传感器的温度,并命令提供给绕组的功率以产生热量。 可以监控电动机功率消耗,以确定粘度。 热量会降低液压油的粘度。 响应于来自控制器的命令,排出的空气可以选择性地提供到与液压流体相关联的壳体。 控制器启动阀门以调节排放到壳体的排放气体的流量,以向由绕组提供的热量提供补充热量。 以这种方式,更有效地管理液压流体的粘度以在冷的条件下提供泵的期望启动。

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