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104 条记录 (耗时 0.023 秒)

    Method for controlling linear expansion valve of heat-pump type air conditioning system using multi-compressors
    61.
    发明申请
    Method for controlling linear expansion valve of heat-pump type air conditioning system using multi-compressors 有权
    多压缩机热泵式空调系统线性膨胀阀控制方法

    公开(公告)号：US20040050082A1

    公开(公告)日：2004-03-18

    申请号：US10377612

    申请日：2003-03-04

    申请人： LG Electronics, Inc.

    发明人： Min Ho So ,  Won Hee Lee ,  Chang Min Choi ,  Yoon Jei Hwang ,  Deok Huh ,  Cheol Min Kim

    IPC分类号： F25B041/04 ,  F25B001/00 ,  F25B049/00

    CPC分类号： F25B49/022 ,  F25B13/00 ,  F25B41/062 ,  F25B2313/0293 ,  F25B2313/0294 ,  F25B2400/0751 ,  F25B2600/2513

    摘要： Disclosed is a method for controlling the aperture ratio of a linear expansion valve (LEV) so as to control the flow rate of refrigerant circulating in an air conditioning system. The LEV aperture ratio is controlled to range from the minimum value to the maximum value, which are determined according to the compressor's capacity and the cooling and heating modes. The LEV aperture ratio is controlled also based on the compressor's operating status, the change of the indoor pan's air volume, and whether or not the indoor pan operates. Such LEV control enables refrigerant to always be circulated at a suitable flow rate, improving the cooling and heating efficiencies, and also prevents liquid refrigerant from flowing into the compressor, securing high reliability of the compressor.

    摘要翻译： 公开了一种用于控制线性膨胀阀（LEV）的开口率以控制在空调系统中循环的制冷剂的流量的方法。 LEV开口率控制在从最小值到最大值的范围内，根据压缩机的容量和制冷和加热模式确定。 LEV孔径比也根据压缩机的运行状态，室内锅的空气量的变化以及室内锅是否运行来控制。 这样的LEV控制使得制冷剂能够以合适的流量始终循环，提高冷却和加热效率，并且还防止液体制冷剂流入压缩机，确保压缩机的高可靠性。

    Air conditioner
    62.
    发明申请
    Air conditioner 审中-公开
    冷气机

    公开(公告)号：US20040045305A1

    公开(公告)日：2004-03-11

    申请号：US10648867

    申请日：2003-08-27

    发明人： Masakazu Murase ,  Hiroaki Kayukawa ,  Hideki Mizutani ,  Sokichi Hibino

    IPC分类号： F25B041/04

    CPC分类号： F25B49/022 ,  F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/185 ,  F04B2027/1854 ,  F04B2027/1895 ,  F04B2205/01 ,  F04B2205/05 ,  F25B2400/076 ,  F25B2500/19 ,  F25B2600/023 ,  F25B2700/1933 ,  F25B2700/2104 ,  F25B2700/2106 ,  F25B2700/21173

    摘要： An air conditioner has a refrigerant circuit, a control valve, a detector, a calculator, a suction pressure sensor and a compressor controller. The refrigerant circuit includes a variable displacement compressor. First and second pressure monitoring points are located in the refrigerant circuit. The control valve includes an actuator and a pressure sensing mechanism that has a pressure sensing member and a valve body. The detector detects cooling load information in the refrigerant circuit. The calculator calculates a target pressure in a relatively low pressure region in the refrigerant circuit in response to the detected cooling load information. The suction pressure sensor detects actual pressure in the reiatively low pressure region in the refrigerant circuit. The compressor controller controls the actuator to eliminate a differential between the calculated target pressure and the detected actual pressure.

    摘要翻译： 空调具有制冷剂回路，控制阀，检测器，计算器，吸入压力传感器和压缩机控制器。 制冷剂回路包括可变排量压缩机。 第一和第二压力监测点位于制冷剂回路中。 控制阀包括具有压力检测构件和阀体的致动器和压力感测机构。 检测器检测制冷剂回路中的冷却负荷信息。 计算器响应于检测到的冷却负荷信息，计算制冷剂回路中较低压力区域中的目标压力。 吸入压力传感器检测制冷剂回路中的真空低压区域中的实际压力。 压缩机控制器控制致动器以消除所计算的目标压力和检测到的实际压力之间的差。

    Cooling system with evaporators distributed in series
    63.
    发明申请
    Cooling system with evaporators distributed in series 有权
    蒸发器串联冷却系统

    公开(公告)号：US20040020226A1

    公开(公告)日：2004-02-05

    申请号：US10309196

    申请日：2002-12-04

    发明人： Cullen E. Bash ,  Chandrakant D. Patel

    IPC分类号： F25B041/04 ,  F25B001/00 ,  F25B049/00

    CPC分类号： H05K7/20745 ,  F25B5/02 ,  F25B49/02 ,  F25B2600/0253 ,  F25B2600/112 ,  F25B2600/2515 ,  F25B2700/2104 ,  F25B2700/2117 ,  Y02B30/741 ,  Y02B30/743

    摘要： A system and method for cooling a room configured to house a plurality of computer systems. A plurality of evaporator units are arranged in series and are configured to receive air from the room and to deliver air to the room. The evaporator units are supplied with refrigerant operable to cool the received air in the evaporator units. At least one of the temperature of the refrigerant supplied to the evaporator units and the air delivery to the room may be controlled in response to temperatures sensed at one or more locations in the room.

    摘要翻译： 一种用于冷却被配置为容纳多个计算机系统的房间的系统和方法。 多个蒸发器单元串联设置，并被配置为从房间接收空气并将空气输送到房间。 向蒸发器单元供应可制冷剂的制冷剂，以冷却蒸发器单元中的接收空气。 可以响应于在房间中的一个或多个位置处感测到的温度来控制供应到蒸发器单元的制冷剂的温度和送到房间的空气中的至少一个。

    Expansion valve
    65.
    发明申请
    Expansion valve 失效
    膨胀阀

    公开(公告)号：US20030066303A1

    公开(公告)日：2003-04-10

    申请号：US10263915

    申请日：2002-10-03

    申请人： TGK Co., Ltd.

    发明人： Hisatoshi Hirota ,  Takeshi Kaneko

    IPC分类号： F25B041/04 ,  F25B041/06

    CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2700/191

    摘要： The object of the present Invention is to provide an expansion valve including a pressure sensor which enables reduction of parts cost. A pressure sensor is screwed into an opening of a body block, which communicates with a space accommodating a valve element and a compression coil spring for urging the valve element toward a valve seat. A set value for an expansion valve is adjusted by changing the amount of screwing of the pressure sensor to thereby change the load of the compression coil spring. An adjusting screw for adjusting the set value for the expansion valve can be dispensed with, which makes it possible to reduce the manufacturing costs of the expansion valve.

    摘要翻译： 本发明的目的是提供一种包括能够降低部件成本的压力传感器的膨胀阀。 压力传感器被拧入体块的开口中，该体块与容纳阀元件的空间和用于将阀元件推向阀座的压缩螺旋弹簧连通。 通过改变压力传感器的拧紧量来调节膨胀阀的设定值，从而改变压缩螺旋弹簧的负荷。 可以省略用于调节膨胀阀的设定值的调节螺钉，这样可以降低膨胀阀的制造成本。

    Expansion valve unit
    68.
    发明申请
    Expansion valve unit 失效
    膨胀阀单元

    公开(公告)号：US20030014989A1

    公开(公告)日：2003-01-23

    申请号：US10193617

    申请日：2002-07-11

    发明人： Takeshi Kaneko

    IPC分类号： F25B041/04 ,  F25B041/06

    CPC分类号： F25B41/062 ,  F25B2500/01 ,  F25B2500/11 ,  Y10S137/901

    摘要： The object of the present invention is to provide an expansion valve unit which prevents a temperature-sensing error from occurring due to transmission of a temperature lowered by the expansion of the refrigerant to a temperature-sensing chamber. An expansion valve unit is configured such that a high-pressure refrigerant guide groove is formed circumferentially in a body between a temperature-sensing chamber and a low-pressure refrigerant passage so as to guide a high-temperature and high-pressure refrigerant from the high-pressure refrigerant guide groove to a valve hole by way of a high-pressure refrigerant passage. By providing the high-pressure refrigerant guide groove, a heat conduction area for conducting heat from the temperature-sensing chamber to the low-pressure refrigerant passage is reduced, and the high-pressure refrigerant guide groove, which is supplied with the high-temperature and high-pressure refrigerant and hence always heated to a high temperature, thermally insulates the temperature-sensing chamber from the low-pressure refrigerant passage. This prevents the temperature-sensing chamber from being adversely affected by the low temperature of the low-pressure refrigerant passage, thereby preventing occurrence of a temperature-sensing error.

    摘要翻译： 本发明的目的是提供一种膨胀阀单元，其防止由于制冷剂的膨胀降低到温度感测室的温度传递而发生温度感测误差。 膨胀阀单元被构造成使得在温度感测室和低压制冷剂通道之间的体内周向形成高压制冷剂引导槽，以便从高温引导高温高压制冷剂 通过高压制冷剂通道将制冷剂引导槽压向阀孔。 通过设置高压制冷剂导槽，减少了从感温室向低压制冷剂通路传导热量的导热面积，向高压制冷剂引导槽供给高温 和高压制冷剂，因此总是被加热到高温，使温度感测室与低压制冷剂通道热绝缘。 这防止温度感测室受到低压制冷剂通道的低温的不利影响，从而防止温度感测误差的发生。

    Method for operating a refrigeration unit
    69.
    发明申请
    Method for operating a refrigeration unit 有权
    操作制冷机组的方法

    公开(公告)号：US20030010046A1

    公开(公告)日：2003-01-16

    申请号：US09903252

    申请日：2001-07-11

    申请人： Thermo King Corporation

    发明人： Peter W. Freund ,  Lars I. Sjoholm

    IPC分类号： F25B041/04 ,  F25B041/00

    CPC分类号： F25B49/02 ,  F25B2341/065 ,  F25B2400/13 ,  F25B2600/2509 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2101 ,  F25B2700/2115 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/2117 ,  Y02B30/72

    摘要： A method for controlling at least one electronic expansion valve coupled to an economizer in a refrigeration system in order to dynamically control the refrigeration system operating conditions and in order to accommodate more than one set of operating conditions. The system can also be used to control the capacity of the system. More specifically, the method can include determining the required capacity of the system and adjusting the flow of refrigerant through the electronic expansion valve to adjust the actual capacity of the system toward the required capacity of the system. In another aspect of the invention, the system is operated to maintain the power of the system below a threshold value (e.g., below a max rated horsepower). This method includes determining the power required to operate the compressor based on the measurement of system parameters; comparing the power required to a threshold value; and adjusting the flow of refrigerant through the electronic expansion valve in order to keep the power required below the threshold value. In yet another aspect of the invention, the system is operated in order to prevent overheating of the compressor. More specifically, the flow of refrigerant from the heat exchanger to the compressor can be adjusted so that some amount of liquid refrigerant is provided to quench the compressor.

    摘要翻译： 一种用于控制联接到制冷系统中的节能器的至少一个电子膨胀阀的方法，以便动态地控制制冷系统的运行状况并且为了适应一套以上的运行条件。 该系统也可用于控制系统的容量。 更具体地，该方法可以包括确定系统的所需容量并调节通过电子膨胀阀的制冷剂流量，以将系统的实际容量调整到系统的所需容量。 在本发明的另一方面，系统被操作以将系统的功率维持在阈值以下（例如，低于最大额定功率）。 该方法包括基于系统参数的测量确定操作压缩机所需的功率; 将所需的功率与阈值进行比较; 并且通过电子膨胀阀调节制冷剂的流量，以将所需的功率保持在阈值以下。 在本发明的另一方面，为了防止压缩机的过热而操作该系统。 更具体地，可以调节从热交换器到压缩机的制冷剂流，使得设置一定量的液体制冷剂来使压缩机骤冷。