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1. 发明授权

US11946678B2 System and method for extending the operating range of a dynamic compressor 有权
公开(公告)号：US11946678B2
公开(公告)日：2024-04-02
申请号：US17585736
申请日：2022-01-27
申请人： Copeland LP
发明人： Michael M. Perevozchikov , Matthew J. Swallow , Zheji Liu
IPC分类号： F25B49/02 , F04D27/02 , F25B31/02
CPC分类号： F25B49/022 , F04D27/0246 , F25B31/026 , F25B2600/022 , F25B2600/0253 , F25B2700/193
摘要： A system includes a dynamic compressor and a controller having a processor and a memory. The compressor includes a first compressor stage having a first variable inlet guide vane (VIGV) and a second compressor stage having a second VIGV. The memory stores instructions that program the processor to operate the compressor at a current speed, a first position of the first VIGV, and a second position of the second VIGV to compress the working fluid, and to determine if a condition is satisfied. If the condition is not satisfied, the processor is programmed to continue to operate the compressor at the current speed, the first position of the first VIGV, and the second position of the second VIGV. If the condition is satisfied, the processor is programmed to change the second position of the second VIGV to a third position and maintain the first position of the first VIGV.

2. 发明申请

US20180328640A1 Method for Controlling a Compressor System 审中-公开
公开(公告)号：US20180328640A1
公开(公告)日：2018-11-15
申请号：US16044665
申请日：2018-07-25
申请人： BITZER Kuehlmaschinenbau GmbH
发明人： Manuel Saboy , Kresten Kjaer Sørensen , Morten Heinild
IPC分类号： F25B49/02 , F25B1/10
CPC分类号： F25B49/022 , F25B1/10 , F25B2600/022 , F25B2600/2519
摘要： Method for controlling a compressor system, arranged in a heat pumping circuit, said compressor system being designed to be operated at at least two different compressor capacity stages, said compressor capacity stages being adjusted by a capacity adjustment system enabling switching from one compressor capacity stage to another compressor capacity stage, said capacity adjustment system being controlled by a capacity selection signal defining the compressor capacity stage to be selected, said method comprising determining a capacity set value, determining a decision quantity on the basis of said capacity set value, determining a calculated capacity average value on the basis of capacity selection signals generated before, comparing said calculated capacity average value with said decision quantity and changing said compressor capacity stage to the next higher stage if the calculated capacity average value is below the decision quantity or changing said compressor capacity stage to the next lower stage if the calculated capacity average value is above the decision quantity, or not changing said compressor capacity stage if the calculated capacity average value meets said decision quantity.

3. 发明申请

US20030205052A1 Air conditioner and control method thereof 失效
标题翻译：空调及其控制方法
公开(公告)号：US20030205052A1
公开(公告)日：2003-11-06
申请号：US10237128
申请日：2002-09-09
申请人： Samsung Electronics Co., Ltd.
发明人： Jong-Moon Kim , Jai-Kwon Lee , Jae-Hyo Jeong , Seung-Chul Kim , Youn-Cheol Park
IPC分类号： F25B001/00 , F25B049/00 , F25B019/00
CPC分类号： F25B1/10 , F25B13/00 , F25B31/004 , F25B41/043 , F25B49/025 , F25B2500/26 , F25B2500/27 , F25B2600/022 , F25B2700/171 , F25B2700/2104 , F25B2700/2106
摘要： An air conditioner and a method of controlling the air conditioner includes a variable capacity compressor being operated at a maximum capacity in a case of starting an operation of the compressor after an extended stoppage for a lengthy period of time longer than a preset reference time, thus increasing a flow rate of a circulated refrigerant during an initial stage of the operation and increasing a quantity of heat generated from the motor of the compressor to vaporize and forcibly discharge a remaining liquid refrigerant from the compressor during the initial stage. Therefore, the variable capacity compressor of the air conditioner does not require heaters conventionally used for heating the refrigerant during such a stoppage, and so easy designing and production of the compressor is achieved, in addition to a reduction in a production cost of the air conditioner. This air conditioner also accomplishes a reduction in a maintenance cost thereof.
摘要翻译：一种空气调节器和空调的控制方法包括：在长时间长于预先设定的基准时间的长时间停止后开始压缩机运转的情况下以最大容量运转的可变容量的压缩机，在初始阶段增加循环制冷剂的流量，并且增加从压缩机的马达产生的热量，以在初始阶段汽化并强制地从压缩机排出剩余的液体制冷剂。因此，空调机的可变容量压缩机不需要通常用于加热制冷剂的加热器，因此除了降低空调的制造成本之外，还可以容易地设计和生产压缩机。该空调还实现了其维护成本的降低。

4. 发明公开

US20230272951A1 COMPRESSION APPARATUS 审中-公开
公开(公告)号：US20230272951A1
公开(公告)日：2023-08-31
申请号：US18246747
申请日：2021-08-06
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Masaki YAMAGUCHI
IPC分类号： F25B43/02 , F25B1/10 , F25B31/00
CPC分类号： F25B43/02 , F25B1/10 , F25B31/002 , F25B2500/16 , F25B2600/022 , F25B2600/0253 , F25B2700/03
摘要： A technique that allows a plurality of series-connected compressors in a refrigerant circuit to have equal amounts of oil in a more versatile manner is provided. A compression apparatus according to an embodiment in the disclosure includes series-connected compressors 10, 20 in a refrigerant circuit 1 that is to circulate a refrigerant; an oil separator 30 is provided in a discharge passage 50 of the compressor 10 of the compressors 10, 20, and separates oil from the refrigerant discharged from the compressor 10 and causes the refrigerant separated from the oil to flow downstream (intake passage 80); an oil return passage 70 returns the oil separated by the oil separator 30 to the compressor 10 neighboring upstream; an oil discharge outlet 10A is provided in the compressor 10; and an oil discharge passage 60 connects the oil discharge outlet 10A to an inlet of the oil separator 30.

5. 发明申请

US20180202689A1 MULTI-STAGE COMPRESSION REFRIGERATION CYCLE DEVICE 审中-公开
公开(公告)号：US20180202689A1
公开(公告)日：2018-07-19
申请号：US15744638
申请日：2016-08-26
申请人： DENSO CORPORATION
发明人： Hisashi IEDA
IPC分类号： F25B1/10 , F25B49/02
CPC分类号： F25B1/10 , F25B49/022 , F25B2400/13 , F25B2500/26 , F25B2500/29 , F25B2600/021 , F25B2600/022 , F25B2600/0253 , F25B2600/111 , F25B2600/112 , F25B2700/1931 , F25B2700/1933 , F25B2700/2104 , F25B2700/2106 , F25B2700/21172
摘要： A multi-stage compression refrigeration cycle device includes a controller that controls rotational speeds of a low-stage side compression mechanism and a high-stage side compression mechanism, and a physical quantity sensor that detects a physical quantity correlated with a pressure of a low-pressure refrigerant. The controller is configured to increase a rotational speed ratio of the rotational speed of the low-stage side compression mechanism to the rotational speed of the high-stage side compression mechanism as the pressure of the low-pressure refrigerant becomes higher, based on the physical amount detected by the physical quantity sensor.

6. 发明申请

US20150219379A1 TRANSCRITICAL REFRIGERANT VAPOR COMPRESSION SYSTEM HIGH SIDE PRESSURE CONTROL 审中-公开
标题翻译：传统制冷剂压缩机系统高压控制
公开(公告)号：US20150219379A1
公开(公告)日：2015-08-06
申请号：US14423254
申请日：2013-08-20
申请人： Carrier Corporation
发明人： Jian Sun , Lucy Yi Liu
IPC分类号： F25B49/02 , F25B9/00 , F25B1/10
CPC分类号： F25B49/022 , F25B1/10 , F25B9/008 , F25B49/02 , F25B2309/061 , F25B2341/0662 , F25B2400/23 , F25B2500/19 , F25B2600/022 , F25B2600/0253 , F25B2600/0261 , F25B2600/2509 , F25B2700/1931 , F25B2700/1933 , F25B2700/21161 , F25B2700/21163 , F25B2700/21171 , F25B2700/21175 , Y02B30/741
摘要： Operation of a transcritical refrigerant vapor compression system is controlled, when operating in a high capacity mode, through control of the refrigerant pressure in the refrigerant heat rejection heat exchanger (40) or the compressor (30) discharge pressure, also referred to herein as the high side pressure, so as to optimize energy efficiency. When operating in unloaded low capacity mode, such as for chilling perishable product during temperature maintenance operation, the high side pressure is controlled so that the system can operate in a continuous running mode.
摘要翻译：通过控制制冷剂排热换热器（40）或压缩机（30）排出压力中的制冷剂压力，在高容量模式下运行时，控制跨临界制冷剂蒸气压缩系统的运行，这里也称为高压力，从而优化能源效率。当在无负载的低容量模式下工作时，例如在温度维持操作期间用于冷却易变质的产品，控制高侧压力，使得系统能够以连续运行模式操作。

7. 发明申请

US20150007598A1 COOLING SYSTEM AND CONTROL METHOD THEREOF 有权
标题翻译：冷却系统及其控制方法
公开(公告)号：US20150007598A1
公开(公告)日：2015-01-08
申请号：US14322297
申请日：2014-07-02
申请人： Jaeheuk CHOI , Taehee KWAK , Yoonho YOO , Doyong HA
发明人： Jaeheuk CHOI , Taehee KWAK , Yoonho YOO , Doyong HA
IPC分类号： F25B49/02 , F25B41/04 , F25B1/10
CPC分类号： F25B49/02 , F25B1/10 , F25B41/04 , F25B41/043 , F25B2400/0401 , F25B2400/13 , F25B2600/022 , F25B2600/2509
摘要： A cooling system and a control method thereof are provided. The cooling system may include a first compressor, a second compressor disposed downstream of the first compressor, an outdoor heat exchanger the performs heat exchange between refrigerant compressed in the first and/or second compressor and external air, an expansion device that decompresses the refrigerant condensed in the outdoor heat exchanger, a cooling evaporator evaporating the refrigerant decompressed in the expansion device, a bypass tube that guides refrigerant compressed in the first compressor to the outdoor heat exchanger, bypassing the second compressor, and a valve device controlling the flow of refrigerant discharged from the first compressor so as to selectively introduce refrigerant into the second compressor.
摘要翻译：提供了一种冷却系统及其控制方法。冷却系统可以包括第一压缩机，设置在第一压缩机下游的第二压缩机，在第一和/或第二压缩机中压缩的制冷剂与外部空气之间进行热交换的室外热交换器，使冷凝的制冷剂减压的膨胀装置在室外热交换器中，冷却蒸发器蒸发在膨胀装置中减压的制冷剂，旁通管，其将在第一压缩机中压缩的制冷剂引导到旁路第二压缩机的室外热交换器;以及控制制冷剂流出的阀装置从第一压缩机中选择性地将制冷剂引入第二压缩机。

8. 发明授权

US07478539B2 Two-stage linear compressor 有权
标题翻译：两级线性压缩机
公开(公告)号：US07478539B2
公开(公告)日：2009-01-20
申请号：US11166533
申请日：2005-06-24
申请人： Doron Shapiro , Clay Rohrer
发明人： Doron Shapiro , Clay Rohrer
IPC分类号： F25B1/10 , F25B43/00 , H02P1/00
CPC分类号： F04B35/045 , F04B25/005 , F25B1/02 , F25B1/10 , F25B49/022 , F25B2400/073 , F25B2400/13 , F25B2600/022 , F25B2600/027 , F25B2700/1931 , F25B2700/1933
摘要： A refrigeration system includes a two-stage linear compressor having a first piston disposed in a first cylinder and a second piston disposed in a second cylinder. The linear compressor is operable in an economizer cycle wherein the first piston operates as a first stage of the economizer cycle and the second piston operates as a second stage of the economizer cycle. A controller is coupled to the linear compressor to control a volume flow ratio of the linear compressor. The controller stores a plurality of coefficients of performance for a range of particular operating conditions of the linear compressor and each coefficient of performance corresponds to a desired volume flow ratio and a desired secondary evaporating temperature. Based upon measured operating conditions of the linear compressor, the controller determines a highest coefficient of performance from the plurality of coefficients of performance and varies operation of at least one of the first and second pistons to achieve the desired volume flow ratio.
摘要翻译：制冷系统包括两级线性压缩机，其具有设置在第一气缸中的第一活塞和设置在第二气缸中的第二活塞。线性压缩机在节能循环中可操作，其中第一活塞作为节能循环的第一阶段运行，第二活塞作为节能循环的第二阶段运行。控制器耦合到线性压缩机以控制线性压缩机的体积流量比。控制器在线性压缩机的特定操作条件的范围内存储多个性能系数，并且每个性能系数对应于期望的体积流量比和期望的二次蒸发温度。基于测量的线性压缩机的操作条件，控制器从多个性能系数确定最高的性能系数，并且改变第一和第二活塞中的至少一个的操作以实现期望的体积流量比。

9. 发明申请

US20190137156A1 Control Mechanism for Climate Control Unit with Multiple Stages 审中-公开
公开(公告)号：US20190137156A1
公开(公告)日：2019-05-09
申请号：US16176331
申请日：2018-10-31
申请人： Emerson Climate Technologies, Inc.
发明人： Sahil POPLI
IPC分类号： F25B49/02 , F25B1/10
CPC分类号： F25B49/022 , F25B1/10 , F25B2400/075 , F25B2500/26 , F25B2600/022 , F25B2600/025 , F25B2600/0253 , F25B2600/112 , F25B2700/2106 , F25B2700/21151
摘要： A climate-control system includes a variable-capacity compressor. An outdoor ambient temperature sensor indicates a temperature of the outdoor ambient air. A return air temperature sensor indicates a temperature of the return air in the system. A controller commands a startup compressor stage based on the temperature from the outdoor ambient temperature sensor and commands a running compressor stage based on a time-based slope of the temperature from the return air temperature sensor and the startup compressor stage.

10. 发明授权

US09683767B2 Cooling system and control method thereof 有权
公开(公告)号：US09683767B2
公开(公告)日：2017-06-20
申请号：US14322297
申请日：2014-07-02
申请人： LG ELECTRONICS INC.
发明人： Jaeheuk Choi , Taehee Kwak , Yoonho Yoo , Doyong Ha
IPC分类号： F25B41/00 , F25B1/10 , F25B1/00 , F25B5/00 , F25B49/02 , F25B41/04
CPC分类号： F25B49/02 , F25B1/10 , F25B41/04 , F25B41/043 , F25B2400/0401 , F25B2400/13 , F25B2600/022 , F25B2600/2509
摘要： A cooling system and a control method thereof are provided. The cooling system may include a first compressor, a second compressor disposed downstream of the first compressor, an outdoor heat exchanger the performs heat exchange between refrigerant compressed in the first and/or second compressor and external air, an expansion device that decompresses the refrigerant condensed in the outdoor heat exchanger, a cooling evaporator evaporating the refrigerant decompressed in the expansion device, a bypass tube that guides refrigerant compressed in the first compressor to the outdoor heat exchanger, bypassing the second compressor, and a valve device controlling the flow of refrigerant discharged from the first compressor so as to selectively introduce refrigerant into the second compressor.

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