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公开(公告)号：US12115293B2
公开(公告)日：2024-10-15
申请号：US18483134
申请日：2023-10-09
发明人： Xuefeng Chen , Bang Yu Wang , Qing Hao Wang , De Bin Cao
CPC分类号： A61L9/205 , F04D29/281 , F04D29/4226 , F04D29/701 , F24F1/0022 , A61L2209/12 , A61L2209/16 , F24F8/22
摘要： A centrifugal fan for a heating, ventilation, air conditioning, and refrigeration (HVACR) system is disclosed. The centrifugal fan includes a volute housing having an inner surface and a curved inlet shroud. The volute housing defines an air outlet. The curved inlet shroud defines an air inlet. The air inlet has an inlet airflow cross-sectional area that lies substantially perpendicular to an outlet airflow cross-sectional area of the air outlet. The centrifugal fan also includes an impeller mounted for rotation about a rotational axis within the volute housing. The impeller has a plurality of fan blades. The plurality of fan blades has an outer surface. The centrifugal fan further includes a light source. The inner surface of the volute housing and the outer surface of the plurality of fan blades includes a photocatalyst layer. The light source is configured to emit light on the photocatalyst layer.
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公开(公告)号：US12092378B2
公开(公告)日：2024-09-17
申请号：US17114013
申请日：2020-12-07
发明人： Jon Phillip Hartfield , Harry Kenneth Ring , Michael William Groen , Stephen Anthony Kujak , Ronald Maurice Cosby, II
CPC分类号： F25B39/028 , F25B39/02 , F28D3/02 , F28D3/04 , F28D21/0017 , F28F9/0131 , F28F13/02 , F28F13/182 , F25B2339/0242
摘要： Generally, management of refrigerant in an evaporator of an HVAC chiller is described. Methods, systems, and apparatuses to manage refrigerant in an evaporator can include one or combination of the following approaches: (1) by use of a refrigerant displacement array to physically prevent refrigerant from residing where the array is positioned (2) by control of the interstitial velocity of refrigerant flow within the volume of the shell of an evaporator; (3) by a phase biased distribution of the refrigerant mixture, so that a gaseous portion is uniformly distributed into the evaporator shell, while liquid refrigerant and oil is distributed into the evaporator shell at a designated area; and (4) by preventing or reducing the occurrence of foaming inside the evaporator through anti-foaming surfaces, such as by the use of refrigerant phobic and lubricant phobic material(s). Refrigerant management can in turn improve the thermal performance and overall efficiency of the evaporator.
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3.发明授权公开(公告)号：US12092353B2
公开(公告)日：2024-09-17
申请号：US18484258
申请日：2023-10-10
摘要： An apparatus for controlling heating, ventilation and air conditioning (HVAC) equipment includes: a memory configured to store computer-readable program code; and processing circuitry configured to access the memory to execute the computer-readable program code, where executing the computer-readable code causes the processing circuitry to detect that a first HVAC unit has failed to control a first environmental condition of a first confined area serviced by the first HVAC unit to meet a first predetermined setpoint for the first confined area and to draw second conditioned air from a second confined area into the first confined area until the first environmental condition meets the first predetermined setpoint by controlling the first HVAC unit to cause the first HVAC unit to reduce air pressure in the first confined area.
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公开(公告)号：US20240288206A1
公开(公告)日：2024-08-29
申请号：US18656840
申请日：2024-05-07
发明人： Dermott Crombie , Stephen A. Kujak
CPC分类号： F25B43/00 , F25B45/00 , F25B2345/002
摘要： Methods, systems and apparatuses are described that are directed to on-site recovery and/or repurposing of refrigerant, where an original refrigerant is converted into a refrigerant different from the original refrigerant. The refrigerant different from the original refrigerant can have relatively lower global warming potential (GWP) than the original refrigerant. The recovery and/or repurposing can be implemented for example in a refrigeration circuit, such as for example in general cooling and/or heating applications, which may be embodied in a heating, venting, and air conditioning (HVAC) system and/or unit, in a transport refrigeration system and/or unit, as well as in commercial, residential and/or industrial cooling and/or heating applications.
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公开(公告)号：US20240240644A1
公开(公告)日：2024-07-18
申请号：US18587229
申请日：2024-02-26
IPC分类号： F04D27/00 , F04D25/06 , F04D29/057
CPC分类号： F04D27/004 , F04D25/06 , F04D25/068 , F04D27/00 , F04D27/007 , F04D29/057 , F04C2240/54
摘要： A compressor for a heat transfer circuit includes a variable frequency drive (VFD), an electric motor that rotates a driveshaft, bearing(s) for supporting the driveshaft, a backup gas supply, and a power supply. During a utility power interruption, the backup gas supply operates utilizing DC electrical power generated by a back electromotive force of the electric motor. A method of operating an electric power supply system for a compressor includes operating in a utility power mode and operating in a backup power mode during a utility power interruption. In the utility power mode, AC electrical power is supplied from the VFD to the motor. In the backup power mode, DC electrical power generated in the VFD by a back electromotive force of the motor it used to operate a backup gas supply to supply compressed working fluid to gas bearing(s) of the compressor.
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公开(公告)号：US20240219070A1
公开(公告)日：2024-07-04
申请号：US18601275
申请日：2024-03-11
发明人： Christopher Daniel , Jason William Parks , Gregory L. Meeuwsen , Nathan Wagers , Chasity Webb , Anthony Chiles , Gregory Edmund Beltran , Aaron Allison Stevens , Stephen Kowalski , Jason Harpst
IPC分类号： F24H3/08 , F23D99/00 , F24H9/06 , F24H9/1854
CPC分类号： F24H3/08 , F23D91/00 , F24H9/06 , F24H9/1854 , F23D2205/00
摘要： An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.
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7.发明授权公开(公告)号：US12025333B1
公开(公告)日：2024-07-02
申请号：US18063288
申请日：2022-12-08
IPC分类号： F24F11/83 , F24F110/10 , F24F110/12 , F24F110/20
CPC分类号： F24F11/83 , F24F2110/10 , F24F2110/12 , F24F2110/20 , F25B2500/19 , F25B2700/02 , F25B2700/2117
摘要： Methods and related systems of detecting a temperature deviation in a heat exchanger coil of a climate control system are disclosed. In an embodiment, the method includes determining an enthalpy of the indoor space. In addition, the method includes detecting a coil temperature of the heat exchanger. Further, the method includes detecting a coil temperature deviation based on the enthalpy and the detected coil temperature.
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公开(公告)号：US12013142B2
公开(公告)日：2024-06-18
申请号：US16889497
申请日：2020-06-01
IPC分类号： F24F13/20 , F24F1/0323 , F24H3/02 , F24F1/0093 , F24F13/32 , F25B13/00
CPC分类号： F24F13/20 , F24F1/0323 , F24H3/022 , F24F1/0093 , F24F13/32 , F25B13/00
摘要： An HVACR fan and heater assembly accounts for the cyclonic flow produced by centrifugal blowers by placing a heater vertically and biased towards a side of a fan cabinet in order to increase and balance airflow through the heater, eliminating hot spots and fire risk and improving heater efficiency. A blockoff in the fan cabinet forces airflow within the cabinet to move through the heater. The positioning of the heater may vary depending on the direction of rotation of the centrifugal blower. The fan and heater assembly may further include baffles to direct the airflow from the centrifugal blower.
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公开(公告)号：US20240183360A1
公开(公告)日：2024-06-06
申请号：US18439032
申请日：2024-02-12
发明人： Mark W. Harrison , Steven J. Pitts , Todd W. Smith
IPC分类号： F04D29/063 , F16N39/02 , F16N39/04 , F25B31/00
CPC分类号： F04D29/063 , F16N39/02 , F16N39/04 , F25B31/004 , F25B31/008
摘要： A lubricant supply system is for a compressor that compresses a first working fluid in a heat transfer circuit. The lubricant supply system includes a lubricant tank, a lubricant pathway for supplying lubricant from the lubricant tank to one or more bearings of the compressor, and a lubricant refrigeration system with a lubricant heater and a lubricant cooler. The lubricant heater configured to heat the lubricant discharged from the one or more bearings and the lubricant cooler configured to cool the lubricant flowing through the lubricant pathway. A method of lubricating a compressor includes heating the lubricant, directing the lubricant from a lubricant tank through a lubricant pathway to one or more bearings of the compressor, and cooling the lubricant passing through the lubricant pathway.
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公开(公告)号：US12001190B2
公开(公告)日：2024-06-04
申请号：US17138191
申请日：2020-12-30
发明人： Brian Meyers , Kathylynn Hanggi Sedro , Anthony W. Bruno , Brian A Kirkman , Mayra R. Reyes Elizondo , Robert Jahn
IPC分类号： G05B19/4063 , G05B19/4097 , G05B19/418 , G06F3/0484 , G06Q10/0639
CPC分类号： G05B19/4063 , G05B19/4097 , G05B19/418 , G06F3/0484 , G06Q10/06393 , G05B2219/32085 , G05B2219/32128
摘要： Method and systems for dynamically generating or editing a graphical dashboard via a graphical user interface (GUI) setup are provided. The method includes determining a type of a plant through the GUI setup, determining a configuration of the plant through the GUI setup, determining at least one component of the plant through the GUI setup, and configuring parameters of the at least one component and/or the plant through the GUI setup. The method also includes generating the dashboard including a plant control logic of the plant based on the type, the configuration, the at least one component, and the parameters of the at least one component and/or the plant. The method further includes controlling the plant based on the plant control logic.
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