公开(公告)号：US07000892B2

公开(公告)日：2006-02-21

申请号：US10728205

申请日：2003-12-03

申请人： Dong Soo Kim ,  Won Hee Lee ,  Byung Oh Choi ,  Kwang Young Kim

发明人： Dong Soo Kim ,  Won Hee Lee ,  Byung Oh Choi ,  Kwang Young Kim

IPC分类号： F16K31/02

CPC分类号： F16K27/041 ,  F16K11/07 ,  F16K27/048 ,  F16K31/04 ,  Y10T137/86622

摘要： The present invention relates to a pneumatic servo valve, and more particularly, to a pneumatic servo valve, wherein displacement of a spool due to flow force of a fluid is prevented by firmly holding the spool just after position control for the spool is completed, thereby ensuring the stability of a valve system, and an encoder is employed as a spool position detecting means. The pneumatic servo valve comprises a hollow main body with a supply port, a discharge port and an exhaust port; a sleeve which is contained in a hollow portion of the main body and has slots communicating with the respective ports, and a chamber therein; a spool axially slidably installed within the chamber to control the flow of a fluid into the respective ports according to the position thereof; a torque motor installed at one side of the main body to control the position of the spool in response to electrical signals; and a spool position detecting means for compensating positional errors by receiving the fedback position of the spool. The pneumatic servo valve further comprises a spool holding means including a ball nut 60 which is engaged, via a ball, with a helical groove formed on a connection rod of the spool connected to the torque motor and rotates when the spool moves linearly, and an electronic brake for holding the ball nut not to rotate when the spool is stopped.

摘要翻译： 气动伺服阀技术领域本发明涉及一种气动伺服阀，更具体地说，涉及一种气动伺服阀，其中通过在阀芯的位置控制完成之后，通过牢固地保持阀芯来防止阀芯由于流体的流动而发生位移，由此 确保阀系统的稳定性，并且使用编码器作为阀芯位置检测装置。 气动伺服阀包括具有供给口，排出口和排气口的中空主体; 套筒，其容纳在主体的中空部分中并且具有与各个端口连通的槽以及其中的室; 轴向可滑动地安装在所述腔室内以根据其位置控制流体进入各个端口的流体; 安装在主体一侧的扭矩马达，以响应于电信号控制线轴的位置; 以及卷轴位置检测装置，用于通过接收卷轴的反馈位置来补偿位置误差。 气动伺服阀进一步包括一个阀芯保持装置，该阀芯保持装置包括一个滚珠螺母60，该滚珠螺母通过一个滚珠与一个形成在连接到转矩马达上的阀芯的连接杆上形成的螺旋槽相接合，当阀芯线性运动时旋转， 当阀芯停止时，用于保持滚珠螺母的电子制动器不旋转。

公开(公告)号：US20050091998A1

公开(公告)日：2005-05-05

申请号：US10917287

申请日：2004-08-13

申请人： Eun-Jun Cho ,  Yoon-Jei Hwang ,  Yun-Ho Ryu ,  Cheol-Min Kim ,  Chan-Ho Song ,  Chang-Min Choi ,  Ji-Young Jang ,  Young-Seob Choi ,  Woo-Ho Cha ,  Seung-Youp Hyun ,  Won-Hee Lee

发明人： Eun-Jun Cho ,  Yoon-Jei Hwang ,  Yun-Ho Ryu ,  Cheol-Min Kim ,  Chan-Ho Song ,  Chang-Min Choi ,  Ji-Young Jang ,  Young-Seob Choi ,  Woo-Ho Cha ,  Seung-Youp Hyun ,  Won-Hee Lee

IPC分类号： F25B49/00 ,  F25B49/02 ,  F25B7/00 ,  F25B1/00 ,  F25B1/10 ,  F25B41/00

CPC分类号： F25B49/022 ,  F25B2400/0751 ,  F25B2600/021 ,  F25B2600/0251 ,  Y02B30/741

摘要： A method for controlling operations of an air-conditioner includes: a step in which when an operation load of an air-conditioner increases, if an outputted compressing capacity of the air-conditioner is smaller than a compressing capacity corresponding to the operation load and an operation frequency of the first compressor is a maximum frequency of the first compressor, a second compressor is operated; and a step in which when the operation load is reduced, if the outputted compressing capacity of the air-conditioner is greater than the compressing capacity corresponding to the operation load and the operation frequency of the first compressor is a minimum frequency of the first compressor, the second compressor is stopped.

摘要翻译： 一种用于控制空调的操作的方法包括：当空调的操作负载增加时，如果空调的输出压缩容量小于与操作负载相对应的压缩容量，则 第一压缩机的运转频率是第一压缩机的最大频率，第二压缩机运转; 以及当操作负载减小时，如果空调的输出压缩容量大于对应于操作负载的压缩容量，并且第一压缩机的操作频率是第一压缩机的最小频率， 第二压缩机停止。

公开(公告)号：US06871505B2

公开(公告)日：2005-03-29

申请号：US10377638

申请日：2003-03-04

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

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

IPC分类号： F25B13/00 ,  F25B31/00 ,  F25B7/00

CPC分类号： F25B31/002 ,  F25B2400/075 ,  F25B2400/0751

摘要： Disclosed are compressor-controlling device and method for an air conditioner comprising a plurality of compressors. In case several compressors selected from the plural compressors are stopped for a long period of time according to cooling or heating load, the refrigerant contained in a higher-pressure state inside of the stopped compressors moves toward a refrigerant pipe of a lower-pressure inlet port, and oil used to operate the compressors leaks toward the inlet port, thus lowering the oil level within the stopped compressors. Since the stopped compressors are operated during a second designated time when stopped time of the stopped compressors exceeds a first designated time, the stopped compressors are protected from damage due to poor lubrication.

摘要翻译： 公开了一种包括多个压缩机的空调机的压缩机控制装置和方法。 在从多个压缩机中选择的多台压缩机根据冷却或加热负荷长时间停止的情况下，停止的压缩机内的高压状态下所含的制冷剂朝向下压入口的制冷剂配管 并且用于操作压缩机的油朝着入口泄漏，从而降低停止的压缩机内的油位。 由于停止的压缩机在停止的压缩机的停止时间超过第一指定时间的第二指定时间内操作，所以停止的压缩机由于润滑不良而受到保护而免受损坏。

公开(公告)号：US06843425B2

公开(公告)日：2005-01-18

申请号：US10397224

申请日：2003-03-27

申请人： Won Hee Lee

发明人： Won Hee Lee

IPC分类号： F25B30/02 ,  F25B13/00 ,  F25B49/02 ,  G05D23/00

CPC分类号： F25B49/022 ,  F25B13/00 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2400/0751 ,  F25B2600/0251 ,  F25B2700/2104 ,  F25B2700/2106

摘要： Disclosed are an apparatus and a method for controlling compressors of an air conditioner. The apparatus includes a temperature sensor, a comparison unit, and a controller. The temperature sensor is installed close to an outdoor unit and serves to sense an outdoor temperature. The comparison unit compares the outdoor temperature sensed by the temperature sensor to a predetermined temperature. The controller determines a heating load when the comparison unit determines that the outdoor temperature is more than the predetermined temperature, and controls the operation of the plural compressors based on the determined heating load. The apparatus determines the heating load by means of the outdoor temperature, and properly operates the plural compressors depending the determined heating load, thereby improving the heating efficiency of the air conditioner.

摘要翻译： 公开了一种用于控制空调的压缩机的装置和方法。 该装置包括温度传感器，比较单元和控制器。 温度传感器安装在室外单元附近，用于感测户外温度。 比较单元将由温度传感器感测的室外温度与预定温度进行比较。 当比较单元确定室外温度大于预定温度时，控制器确定加热负载，并且基于确定的加热负荷来控制多个压缩机的操作。 该装置通过室外温度来确定加热负荷，并根据确定的加热负荷适当地操作多个压缩机，从而提高空调的加热效率。

公开(公告)号：US06843066B2

公开(公告)日：2005-01-18

申请号：US10638526

申请日：2003-08-12

申请人： Won Hee Lee ,  Cheol Min Kim ,  Yoon Jei Hwang ,  Ji Young Jang

发明人： Won Hee Lee ,  Cheol Min Kim ,  Yoon Jei Hwang ,  Ji Young Jang

IPC分类号： F24F11/02 ,  F24F11/00 ,  F25B13/00 ,  F25B49/02 ,  F25B7/00

CPC分类号： F25B49/022 ,  F24F11/83 ,  F24F11/85 ,  F25B13/00 ,  F25B2313/0233 ,  F25B2313/0253 ,  F25B2400/075

摘要： Disclosed are an air conditioning system, in which the total operating capacity of compressors is variably controlled in accordance with a cooling or heating load in a room, and a method for controlling the air conditioning method, thus improving comfortableness in the room, reducing an electric power consumption rate, and increasing cooling or heating efficiency. The air conditioning system includes an indoor heat exchanger for cooling a room by heat-exchanging a refrigerant with air in the room; an outdoor heat exchanger for condensing the refrigerant; a plurality of compressors for compressing the refrigerant; and a control unit for controlling operation of the plural compressors in accordance with the cooling or heating load in the room.

摘要翻译： 公开了一种空调系统，其中压缩机的总运行能力根据房间中的冷却或加热负载而可变地控制，以及用于控制空调方法的方法，从而提高了房间的舒适性，减少了电 功率消耗率，以及提高冷却或加热效率。 空调系统包括：室内热交换器，用于通过在室内与空气进行热交换来冷却房间; 用于冷凝制冷剂的室外热交换器; 多个用于压缩制冷剂的压缩机; 以及控制单元，用于根据房间中的冷却或加热负载来控制多个压缩机的操作。

公开(公告)号：US06807816B2

公开(公告)日：2004-10-26

申请号：US10377877

申请日：2003-03-04

申请人： Won Hee Lee ,  Chang Min Choi ,  Yoon Jei Hwang ,  Deok Huh ,  Cheol Min Kim

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

IPC分类号： F25B700

CPC分类号： F25B49/022 ,  F25B13/00 ,  F25B2400/0751 ,  F25B2600/02 ,  F25B2600/0251 ,  F25B2700/2104

摘要： Disclosed are an air conditioning system with two compressors so as to shorten standby time for re-operating a stopped compressor and variably change the compression capacity of a refrigerant according to cooling load, and a method for operating the air conditioning system. The method for operating the air conditioning system with two compressors, comprises the first step of simultaneously operating the compressors regardless of cooling load at an early stage of the operation, the second step of selectively operating one of the compressors according to the cooling load, and the third step of additionally re-operating the stopped compressor when the operated compressor selected from the compressor in the second step is continuously operated for longer than a designated time, thereby shortening the standby time for re-operating the stopped compressor, rapidly changing the compression capacity of the refrigerant according to the cooling load, and improving users' comfort within a room.

摘要翻译： 公开了一种具有两台压缩机的空调系统，以缩短重新运行停止的压缩机的待机时间，并根据冷却负荷可变地改变制冷剂的压缩容量，以及操作空调系统的方法。 用两台压缩机运行空调系统的方法包括：在运行初期，不管冷却负荷如何，同时操作压缩机的第一步骤，第二步根据冷却负荷有选择地运行一台压缩机;以及 当在第二步骤中从压缩机中选择的操作的压缩机连续运行长于指定时间时，另外重新操作停止的压缩机的第三步骤，从而缩短重新运行停止的压缩机的待机时间，从而快速改变压缩 制冷剂的容量根据制冷负荷而改善使用者在房间内的舒适度。

公开(公告)号：US06807815B2

公开(公告)日：2004-10-26

申请号：US10377779

申请日：2003-03-04

申请人： Won Hee Lee ,  Chang Min Choi ,  Yoon Jei Hwang ,  Deok Huh ,  Cheol Min Kim

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

IPC分类号： F25B700

CPC分类号： F25B13/00 ,  F25B49/022 ,  F25B2313/02331 ,  F25B2313/02334 ,  F25B2400/0751 ,  F25B2500/19 ,  F25B2600/02 ,  F25B2700/2104

摘要： An air conditioning system and a method for operating the air conditioning system, in which a plurality of compressors are simultaneously or selectively operated, based on the difference between a room temperature and a desired temperature generated during a waiting time for re-operation of the compressors. The room temperature varying during the waiting time for the re-operation of the compressors maintained at a stopped state is sensed to determine whether or not an increase in cooling load occurs. Based on the amount of the cooling load, it is determined whether the compressors have to operate simultaneously or selectively. That is, the refrigerant compression capacity of the air conditioning system is determined by reflecting the cooling load caused by a variation in room temperature occurring during the waiting time for re-operation taken until any compressor maintained in a stopped state is re-operated. Accordingly, it is possible to more stably control the room temperature, and to achieve an improvement in the comfortableness of the room atmosphere.

摘要翻译： 一种空调系统和一种操作空调系统的方法，其中多个压缩机同时或选择性地操作，基于在等待时间期间产生的室温和期望温度之间的差异，用于压缩机的再次操作 。 检测在维持在停止状态的压缩机的再次运转的等待时间期间变化的室内温度，以确定是否发生冷却负荷的增加。 基于冷却负荷的量，确定压缩机是否必须同时或选择性地操作。 也就是说，空调系统的制冷剂压缩容量是通过反映在再次操作的等待时间期间发生的室温变化引起的冷却负荷来确定的，直到维持在停止状态的任何压缩机被再次操作。 因此，能够更稳定地控制室内温度，并且能够实现室内空气的舒适性的提高。

公开(公告)号：US06755034B2

公开(公告)日：2004-06-29

申请号：US10338843

申请日：2003-01-09

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

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

IPC分类号： F25B700

CPC分类号： H02P29/02 ,  F04C23/001 ,  F25B49/025 ,  F25B2400/075 ,  F25B2500/06 ,  F25B2600/024 ,  F25B2700/151

摘要： Disclosed are an apparatus for preventing an overload of an air conditioner and a method thereof. The apparatus includes current feedback units for feeding back the currents supplied to the compressors to the controller where at least one of a plurality of compressors, operated in response to currents generated from a controller for controlling an operation of the air conditioner, is in an overload state; and a comparator for sensing current differences between the currents inputted into the compressors and the currents fed back from the current feedback units. After sensing the current differences between the currents inputted into the compressors and the currents fed back from the current feedback units, the comparator determines that at least one of the compressors is in the overload state if a current difference does not exist. The controller simultaneously stops operations of the compressors, and re-operates the compressors if the overload state is relieved, thereby preventing a continuous overload state of a compressor and hence damage of a compressor.

摘要翻译： 公开了一种防止空调过载的装置及其方法。 该装置包括用于将提供给压缩机的电流反馈到控制器的电流反馈单元，其中响应于从用于控制空调的操作的控制器产生的电流而操作的多个压缩机中的至少一个压缩机处于过载状态 州; 以及用于感测输入到压缩机的电流之间的电流差和从电流反馈单元反馈的电流的比较器。 在感测输入到压缩机的电流和从电流反馈单元反馈的电流之间的电流差异之后，如果不存在电流差，则比较器确定至少一个压缩机处于过载状态。 控制器同时停止压缩机的操作，并且如果过载状态被释放则重新操作压缩机，从而防止压缩机的连续过载状态，从而损坏压缩机。

公开(公告)号：US06748772B2

公开(公告)日：2004-06-15

申请号：US10043205

申请日：2002-01-14

申请人： Won Hee Lee ,  Yoon Jei Hwang

发明人： Won Hee Lee ,  Yoon Jei Hwang

IPC分类号： D06F2500

CPC分类号： D06F25/00 ,  D06F58/20 ,  D06F58/24

摘要： A washing and drying machine and a clothes dryer including an air circulating duct for circulating air into the inner tub for washing or drying inputted clothes. An inner portion of a drum and an evaporator of the refrigerating cycle, may be positioned in the air circulating duct to dehumidify the circulated air to improve the efficiency of the dehumidifcation process of the circulated air, to reduce the required time for drying clothes and to reduce energy consumption.

摘要翻译： 一种洗衣机和干衣机，包括用于将空气循环到内桶中以用于洗涤或干燥输入的衣服的空气循环管道。 滚筒的内部部分和制冷循环的蒸发器可以定位在空气循环管道中以对循环空气进行除湿，以提高循环空气的除湿过程的效率，减少干燥衣物所需的时间，并且 降低能耗。

公开(公告)号：US06742348B2

公开(公告)日：2004-06-01

申请号：US10377612

申请日：2003-03-04

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

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

IPC分类号： F25B4104

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 fan's air volume, and whether or not the indoor fan 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，室内风扇的风量变化以及室内风扇的运行情况进行控制。 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。