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公开(公告)号：US10812005B2
公开(公告)日：2020-10-20
申请号：US16339329
申请日：2017-10-05
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Israel Federman , Jay A. Kohler , Ivan Jadric
Abstract: Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (VSD) configured to supply power to a motor configured to drive a compressor of the HVAC&R system, a rectifier of the VSD configured to receive alternating current (AC) power from an AC power source and convert the AC power to direct current (DC) power, a DC bus of the VSD electrically coupled to the rectifier, an inverter of the VSD electrically coupled to the DC bus, where the inverter is configured to convert the DC power to output AC power, the output AC power has a variable voltage and a variable frequency, and the output AC power is directed to the motor, and a battery electrically coupled to the DC bus, where the battery is configured to provide auxiliary DC power to the VSD.
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公开(公告)号：US11359847B2
公开(公告)日：2022-06-14
申请号：US16326895
申请日：2017-08-22
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Stephen M. Zardus , Israel Federman , Curtis C. Crane , Todd Kwao-vovo
Abstract: A refrigeration system includes a heat exchanger configured to place a cooling fluid in a heat exchange relationship with a working fluid, a free-cooling circuit having a pump configured to circulate the working fluid through the heat exchanger and a condenser, a flow control valve configured to control a flow rate of the working fluid to the condenser, a condenser bypass valve configured to control a flow rate of the working fluid that bypasses the condenser, and a controller configured to adjust a position of the flow control valve, a position of the condenser bypass valve, a speed of a fan of the condenser, a speed of the pump, and a temperature of a heater based on an ambient temperature, a temperature of the working fluid leaving the condenser, the position of the flow control valve, the position of the condenser bypass valve, or a combination thereof.
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Patent Agency Ranking
公开(公告)号：US20190238081A1
公开(公告)日：2019-08-01
申请号：US16339329
申请日：2017-10-05
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Israel Federman , Jay A. Kohler , Ivan Jadric
Abstract: Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (VSD) configured to supply power to a motor configured to drive a compressor of the HVAC&R system, a rectifier of the VSD configured to receive alternating current (AC) power from an AC power source and convert the AC power to direct current (DC) power, a DC bus of the VSD electrically coupled to the rectifier, an inverter of the VSD electrically coupled to the DC bus, where the inverter is configured to convert the DC power to output AC power, the output AC power has a variable voltage and a variable frequency, and the output AC power is directed to the motor, and a battery electrically coupled to the DC bus, where the battery is configured to provide auxiliary DC power to the VSD.
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公开(公告)号：US20160305697A1
公开(公告)日：2016-10-20
申请号：US15195860
申请日：2016-06-28
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Israel Federman , Satheesh Kulankara , Andrew John Graybill
CPC classification number: F25B49/02 , F25B1/047 , F25B1/10 , F25B39/04 , F25B41/04 , F25B43/02 , F25B49/022 , F25B2339/021 , F25B2339/024 , F25B2341/0662 , F25B2400/13 , F25B2400/23 , F25B2600/19 , F25B2600/2509 , F25B2600/2513 , F25B2700/195 , F25B2700/21163 , F28D21/0017 , F28F1/022 , F28F2260/02
Abstract: A refrigeration system is provided, such as for use with chillers. The system uses a tube-side condenser, such as a microchannel condenser, along with a shell-side evaporator such as a falling film evaporator. A flash tank economizer is disposed between the condenser and the evaporator, and an inlet valve to the flash tank is controlled based upon subcooling of condensate from the condenser. The vapor exiting the flash tank may be fed via an economizer line to a system compressor. Liquid phase refrigerant combined with some gas phase refrigerant exits the flash tank and is directed through an orifice before entering the evaporator.
Abstract translation: 提供制冷系统，例如用于冷却器。 该系统使用诸如微通道冷凝器的管侧冷凝器以及诸如降膜蒸发器的壳侧蒸发器。 闪蒸罐节能器设置在冷凝器和蒸发器之间，并且基于来自冷凝器的冷凝物的过冷而控制到闪蒸罐的入口阀。 离开闪蒸罐的蒸汽可以通过节能器管线供给到系统压缩机。 与一些气相制冷剂组合的液相制冷剂离开闪蒸罐并在进入蒸发器之前被引导通过孔口。
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公开(公告)号：US20190186801A1
公开(公告)日：2019-06-20
申请号：US16326895
申请日：2017-08-22
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Stephen M. Zardus , Israel Federman , Curtis C. Crane , Todd Kwao-vovo
CPC classification number: F25B49/027 , F25B23/006 , F25B25/005 , F25B2400/0403 , F25B2600/111 , F25B2600/13 , F25B2600/2501 , F25B2600/2515 , Y02B30/745
Abstract: A refrigeration system includes a heat exchanger configured to place a cooling fluid in a heat exchange relationship with a working fluid, a free-cooling circuit having a pump configured to circulate the working fluid through the heat exchanger and a condenser, a flow control valve configured to control a flow rate of the working fluid to the condenser, a condenser bypass valve configured to control a flow rate of the working fluid that bypasses the condenser, and a controller configured to adjust a position of the flow control valve, a position of the condenser bypass valve, a speed of a fan of the condenser, a speed of the pump, and a temperature of a heater based on an ambient temperature, a temperature of the working fluid leaving the condenser, the position of the flow control valve, the position of the condenser bypass valve, or a combination thereof.
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公开(公告)号：US10203140B2
公开(公告)日：2019-02-12
申请号：US15195860
申请日：2016-06-28
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Israel Federman , Satheesh Kulankara , Andrew John Graybill
Abstract: A refrigeration system is provided, such as for use with chillers. The system uses a tube-side condenser, such as a microchannel condenser, along with a shell-side evaporator such as a falling film evaporator. A flash tank economizer is disposed between the condenser and the evaporator, and an inlet valve to the flash tank is controlled based upon subcooling of condensate from the condenser. The vapor exiting the flash tank may be fed via an economizer line to a system compressor. Liquid phase refrigerant combined with some gas phase refrigerant exits the flash tank and is directed through an orifice before entering the evaporator.
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公开(公告)号：US10018393B2
公开(公告)日：2018-07-10
申请号：US14808405
申请日：2015-07-24
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： William L. Kopko , Andrew John Graybill , Glenn Eugene Nickey , Israel Federman , Satheesh Kulankara
CPC classification number: F25B49/022 , A63B57/00 , F25B1/06 , F25B1/10 , F25B41/00 , F25B49/025 , F25B2341/0662 , F25B2400/13 , F25B2400/23 , F25B2600/01 , F25B2600/02 , F25B2600/2509 , F25B2700/04 , F25B2700/151 , F25B2700/171 , F25B2700/1931 , F25B2700/2101 , F25B2700/2106 , F25B2700/21152 , F25B2700/21156 , F25B2700/21173
Abstract: A method for controlling an economizer circuit is provided. The economizer circuit includes a valve to regulate refrigerant flow between the economizer and the compressor. The valve can be opened to engage the economizer circuit or closed to disengage the economizer circuit based on the output frequency provided to the compressor motor by a variable speed drive and an operating condition of the economizer.
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