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51. 发明授权

US10739041B2 Selectively controllable condenser and evaporator system 有权
公开(公告)号：US10739041B2
公开(公告)日：2020-08-11
申请号：US15486706
申请日：2017-04-13
申请人： Johnson Controls Technology Company
发明人： Thomas P. Carter
IPC分类号： F25B5/02 , F25B40/02 , F25B49/02 , F25B47/02 , F25B41/00 , F25B6/02 , F25B41/04
摘要： A condenser and evaporator system includes (i) a condenser system positioned to receive a gaseous refrigerant from a compressor system and configured to condense the gaseous refrigerant into a liquid refrigerant, (ii) a controlled pressure receiver (CPR) positioned to receive and store the liquid refrigerant, (iii) an evaporator system including a conduit, an expansion valve, and a fan, and (iv) a controller. The conduit is positioned to receive the liquid refrigerant from the CPR. The expansion valve is positioned between the CPR and the conduit, and configured to facilitate modulating an amount of the liquid refrigerant that flows into the conduit from the CPR. The fan is positioned to facilitate providing a cooling operation to an arca associated with the evaporator system through evaporation of the liquid refrigerant flowing through the conduit. The controller is configured to control a stage of the condenser system and/or the evaporator system a condenser system, a reservoir, a compressor return conduit, an evaporator system, and a return line. The condenser system is configured to receive a compressed gaseous refrigerant from a compressor system and condense the compressed gaseous refrigerant into a liquid refrigerant. The reservoir is configured to receive the liquid refrigerant. The compressor return conduit is configured to couple the reservoir to the compressor system to direct gaseous refrigerant within the reservoir to the compressor system. The evaporator system is configured to receive the liquid refrigerant from the reservoir and perform a cooling operation where the liquid refrigerant is converted into an evaporated gaseous refrigerant to facilitate thermally regulating a cooling zone associated with the evaporator system. The return line is configured to couple the evaporator system to the reservoir and direct defrost condensate refrigerant to the reservoir from the evaporator system.

52. 发明授权

US10731903B2 System and method for device under test cooling using digital scroll compressor 有权
公开(公告)号：US10731903B2
公开(公告)日：2020-08-04
申请号：US15947415
申请日：2018-04-06
申请人： Temptronic Corporation
发明人： Chuan Weng , Norbert Elsdoerfer
IPC分类号： F25B49/02 , F25B41/04 , F25B1/04 , F25B40/00 , F25B7/00 , F04C27/00 , F25B9/00 , F25B31/02 , F04C18/02 , F04C28/26 , F04C23/00 , F25B25/00
摘要： A device under test cooling system has a refrigerant line and a fluid line extending through a plurality of successively arranged heat exchangers. A digital scroll compressor has an intake for providing the refrigerant mixture to the compressor and a discharge connecting the compressor to the refrigerant line to provide the refrigerant mixture to the heat exchangers. The compressor includes a plurality of scroll elements between the intake and the discharge for compressing the refrigerant mixture. The compressor includes a valve configured to separate the scroll elements when in an open position to allow refrigerant to flow freely between the intake and the discharge. When the valve is in a closed position, the scroll elements compress the refrigerant. A controller is configured to switch the valve between an open and closed position based on a set duty cycle.

53. 发明申请

US20200236820A1 DUAL MASS COOLING PRECISION SYSTEM 审中-公开
公开(公告)号：US20200236820A1
公开(公告)日：2020-07-23
申请号：US16841108
申请日：2020-04-06
申请人： STULZ Air Technology Systems, Inc.
发明人： David Meadows , Joerg Desler
IPC分类号： H05K7/20 , F25B49/02 , F25B45/00 , F25B43/00 , F25B41/06 , F25B39/00 , F25B5/02 , F28D1/04 , F25B41/04 , F28D7/00 , F28D7/10 , F28D1/047
摘要： Devices, systems, and methods are disclosed for cooling using both air and/or liquid cooling sub circuits. A vapor compression cooling system having both an air and liquid cooling sub circuit designed to service high sensible process heat loads that cannot be solely cooled by either liquid or air is provided.

54. 发明授权

US10718547B2 Air-conditioning apparatus having a drain sensor and associated compressor control 有权
公开(公告)号：US10718547B2
公开(公告)日：2020-07-21
申请号：US16093473
申请日：2016-05-31
申请人： Mitsubishi Electric Corporation
发明人： Yohei Baba
IPC分类号： F24F13/22 , F24F11/86 , F24F11/61 , F24F1/0003 , F25B41/04 , F25B49/02 , F24F140/12 , F24F140/20
摘要： An air-conditioning apparatus according to the present invention includes: a heat-source-side unit including a heat-source-side heat exchanger and a compressor; a plurality of load-side units including respective load-side heat exchangers and respective load-side expansion devices; and a relay unit connected between the heat-source-side unit and the plurality of load-side units by a first gas pipe and a first liquid pipe. The relay unit includes a gas/liquid separator which separates refrigerant supplied from the heat-source-side unit into gas refrigerant and liquid refrigerant, a gas-refrigerant supply pipe and a liquid-refrigerant supply pipe which are connected to the gas/liquid separator and each of the plurality of load-side units, a drain pan which is provided in a housing of the relay unit and which receives dew-condensation water, and a heat transfer body which is provided in the drain pan and which is in contact with the liquid-refrigerant supply pipe.

55. 发明授权

US10704808B2 Ultra-low temperature freezer 有权
公开(公告)号：US10704808B2
公开(公告)日：2020-07-07
申请号：US15892146
申请日：2018-02-08
申请人： PHC HOLDINGS CORPORATION
发明人： Yoshihiro Takahashi , Takashi Arai
IPC分类号： F25D3/00 , F25D19/04 , F25B7/00 , F25D19/02 , F25B41/04 , F25D11/00
摘要： An ultra-low temperature freezer includes: an insulated case defining a storage compartment having an opening in an upper face; an insulated door capable of opening and closing the opening; a first refrigeration unit configured such that a first compressor, a first condenser, and a first decompressor are mounted on a first mounting board; a second refrigeration unit configured such that a second compressor, a second condenser, and a second decompressor are mounted on a second mounting board; a machinery compartment provided near the insulated case, and configured to house the first and second refrigeration units to be independently drawable in the horizontal direction; and a control unit, where a control circuit is mounted, configured to be drawable independently of the first and second refrigeration units, the first and second refrigeration units and the control unit being housed in the machinery compartment to be stacked in a vertical direction.

56. 发明授权

US10697683B2 Refrigeration system condenser fan control 有权
公开(公告)号：US10697683B2
公开(公告)日：2020-06-30
申请号：US15553380
申请日：2016-02-26
申请人： Carrier Corporation
发明人： Jian Sun , Linhui Chen
IPC分类号： F25B49/02 , F25B40/02 , F25B47/02 , F25B27/00 , F25B40/00 , F25B41/04 , F25D11/00
摘要： A method of controlling a refrigeration system having a compressor, a condenser, an evaporator, and a variable speed condenser fan is provided. The method includes determining if a change in an ambient temperature or a compressor suction pressure is greater than a predetermined threshold, determining a near-optimal condensing pressure/temperature if the change in the ambient temperature or the compressor suction pressure is above the predetermined threshold, setting a condensing pressure setpoint based on the determined near-optimal condensing pressure/temperature, and setting a speed of the variable speed condenser fan based on the condensing pressure setpoint.

57. 发明授权

US10697679B2 Cooling system and a method for control thereof 有权
公开(公告)号：US10697679B2
公开(公告)日：2020-06-30
申请号：US15580138
申请日：2015-06-08
申请人： Electrolux Appliances Aktiebolag
发明人： Andreas Aschan , Richard Furberg , Trung Pham Viet
IPC分类号： F25B49/02 , F25B5/02 , F25B41/04
摘要： A refrigerator apparatus having a compressor, a condenser, an evaporator, and a valve interconnected in the flow from the condenser to the evaporator. The valve is operatively controlled to a first, open, state and to a second, closed, state by a controller. The controller is configured to the valve to operate in accordance with at least one of: opening the valve a time period of 0-180 seconds before the compressor is switched to an on-phase; and closing the valve before the compressor is switched to an off-phase.

58. 发明授权

US10697674B2 Bypass line for refrigerant 有权
公开(公告)号：US10697674B2
公开(公告)日：2020-06-30
申请号：US16171145
申请日：2018-10-25
申请人： Johnson Controls Technology Company
发明人： Jeb William Schreiber , Seth Kevin Gladfelter , Kevin Donald Krebs , Cameron Stuart Nelson
IPC分类号： F25B41/04 , F25B13/00 , F25B49/02 , F25B39/04
摘要： A vapor compression system includes a first conduit fluidly coupling a liquid collection portion of a condenser and an evaporator, where the first conduit is configured to direct a first flow of refrigerant from the condenser to a first inlet of the evaporator and a second conduit fluidly coupling the liquid collection portion of the condenser and the evaporator, where the second conduit is configured to direct a second flow of refrigerant from the condenser to a second inlet of the evaporator via gravitational force, and where the first inlet is disposed above the second inlet relative to a vertical dimension of the evaporator.

59. 发明授权

US10684053B2 Vapor compression system with compressor control based on temperature and humidity feedback 有权
公开(公告)号：US10684053B2
公开(公告)日：2020-06-16
申请号：US15902082
申请日：2018-02-22
申请人： Johnson Controls Technology Company
发明人： Jay C. Walser
IPC分类号： F25B13/00 , F25B49/02 , F25B41/04 , F24F3/14 , F24F3/153 , F24F11/30 , F24F11/83 , F24F110/20 , F24F11/86 , F24F11/85
摘要： A vapor compression system that includes a controller. The controller includes instructions for switching between first and second modes of operation of the vapor compression system. The controller activates a first compressor and a second compressor of the vapor compression system in the first mode of operation in response to a temperature level and a humidity level exceeding a threshold temperature and a threshold humidity level, respectively. And in the second mode of operation, the controller activates the first compressor in response to only the humidity level exceeding the threshold humidity level.

60. 发明申请

US20200173573A1 VALVE DRIVE DEVICE 审中-公开
公开(公告)号：US20200173573A1
公开(公告)日：2020-06-04
申请号：US16699751
申请日：2019-12-02
申请人： NIDEC SANKYO CORPORATION
发明人： Satoru YOKOE
IPC分类号： F16K31/04 , F25B41/04
摘要： A valve drive device comprising a valve body drive mechanism including a drive gear, a driven gear for turning the valve body, and a power transmission switching part provided with a protruded part of the drive gear and a turning restriction part turnably attached to the driven gear. The turning restriction part comprises a lever part urged with an urging force toward an outer side of the driven gear. The driven gear comprises a lever turning restriction part for restricting turning of the lever part and the lever part is structured to perform a contact operation with the protruded part and a separating operation separated from a contact position with the lever turning restriction part. The valve body drive mechanism further comprises a foreign matter entry restraining part which covers at least a part of a region formed between the lever part and the lever turning restriction part.

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