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1. 发明申请

US20230123900A1 REFRIGERANT CHARGE MANAGEMENT DEVICE FOR HEAT PUMP SYSTEMS 有权
公开(公告)号：US20230123900A1
公开(公告)日：2023-04-20
申请号：US18047907
申请日：2022-10-19
申请人： Carrier Corporation
发明人： Dhruv Chanakya Hoysall
IPC分类号： F25B49/02 , F25B13/00
摘要： Disclosed is a refrigerant charge management device comprising a refrigerant charge vessel enclosing a volume, a movable impervious barrier separating the volume into a first volume and a second volume, a first port disposed in fluid communication with the first volume and configured for fluid connection to a heat pump system, and a second port disposed in fluid communication with the second volume and configured for fluid connection to the heat pump system, wherein the movable impervious barrier is configured to move in response to a difference in pressure between the first volume and the second volume thereby changing the size of the first volume and the second volume.

2. 发明申请

US20230122660A1 HEAT PUMP, METHODS OF OPERATION AND SIMULATION 有权
公开(公告)号：US20230122660A1
公开(公告)日：2023-04-20
申请号：US18047811
申请日：2022-10-19
申请人： THERMO KING LLC
发明人： Pavel HOUDEK , Martin GALANSKY , Martin SOUKUP
IPC分类号： F25B41/31 , F25B13/00 , F25B40/06
摘要： There is disclosed heat pump, comprising: an internal heat exchanger configured to transfer heat from refrigerant in a liquid line pathway to refrigerant in a suction line pathway, to superheat the refrigerant upstream of a compressor; and a controller configured to: control an expansion valve to maintain a target superheat of refrigerant at a control location. The target superheat is variable and is determined based on one or more operating conditions of the heat pump. There is also disclosed a method of operating a heat pump and a simulation method to determine a variable superheat.

3. 发明授权

US11624531B2 Oil control system and method for HVAC system 有权
公开(公告)号：US11624531B2
公开(公告)日：2023-04-11
申请号：US17255275
申请日：2019-05-15
申请人： CARRIER CORPORATION
发明人： Mark W. Shoemaker
IPC分类号： F25B13/00 , F25B41/22 , F25B31/00
摘要： A HVAC system that includes a compressor comprising a suction port and a discharge port. Also included is a refrigerant circulating throughout the HVAC system and through the compressor. Further included is a pressure equalization valve fluidly coupling the discharge port of the compressor with the suction port of the compressor, the pressure equalization valve configured to open while the compressor is operating.

4. 发明授权

US11592227B2 Self-sustainable multiple-tank cooler with energy storage and chamber for temperature compensation 有权
公开(公告)号：US11592227B2
公开(公告)日：2023-02-28
申请号：US16772523
申请日：2018-02-20
申请人： Jose De Jesus Martinez Alcantara , Jorge Manuel Civeira Rodriguez
发明人： Jose De Jesus Martinez Alcantara
IPC分类号： F25D16/00 , F25D13/02 , F25B13/00 , F28D20/02 , F25D11/00
摘要： Cooler composed by an outer tank, within which a cooling tank and a useful tank are housed, among which there is an array of thermal energy accumulators, and within the tank useful there are temperature compensation chambers.

5. 发明授权

US11592216B2 Liquid receiver for heating, air conditioning and refrigeration system 有权
公开(公告)号：US11592216B2
公开(公告)日：2023-02-28
申请号：US17058815
申请日：2018-09-12
申请人： Carrier Corporation
发明人： Charbel Rahhal
IPC分类号： F25B13/00 , F25B41/31 , F25B45/00
摘要： A receiver for a heating, air conditioning, and refrigeration system includes a tube extending along a tube axis from a first receiver end to a second receiver end opposite the first receiver end, and a single receiver port. The receiver port is configured as both a receiver inlet and a receiver outlet. A heating, air conditioning, and refrigeration system includes a compressor configured to compress a refrigerant flow, a refrigerant pathway configured to convey the refrigerant flow through the heating, air conditioning, and refrigeration system, and a receiver fluidly connected to the refrigerant pathway. The receiver includes a tube extending along a tube axis from a first receiver end to a second receiver end opposite the first receiver end, and a single receiver port. The receiver port is configured as both a receiver inlet and a receiver outlet, and is connected to the refrigerant pathway via the single receiver port.

6. 发明申请

US20230049970A1 AIR CONDITIONING APPARATUS 有权
公开(公告)号：US20230049970A1
公开(公告)日：2023-02-16
申请号：US17792489
申请日：2020-11-18
申请人： LG ELECTRONICS INC.
发明人： Jaehwa JUNG , Yongcheol SA
IPC分类号： F25B13/00
摘要： Provided is an air conditioning apparatus. The air conditioning apparatus includes an outdoor unit through which a refrigerant circulates, a plurality of indoor units through which water circulates, the plurality of indoor units comprising a first indoor heat exchanger and a second indoor heat exchanger, and a heat-exchange device configured to connect the outdoor unit to the indoor unit, the heat exchange device including a first heat exchanger and a second heat exchanger, in which the refrigerant and water are heat exchanged with each other. The heat exchange device includes a first inflow tube extending from the first indoor heat exchanger toward the first heat exchanger to guide a flow of the water, a second inflow tube extending from the second indoor heat exchanger toward the second heat exchanger to guide the flow of the water, a first pump provided in the first inflow tube and a second pump provided in the second inflow tube. When a portion of the indoor unit performs a heating operation, and the other portion of the indoor unit performs a cooling operation, when a total capacity required for the indoor unit is equal to or less than a set capacity, the first pump or the second pump operates, and when the total capacity required for the indoor unit exceeds the set capacity, the first pump and the second pump operate.

7. 发明申请

US20230020557A1 REFRIGERATION CYCLE APPARATUS 有权
公开(公告)号：US20230020557A1
公开(公告)日：2023-01-19
申请号：US17948410
申请日：2022-09-20
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Ryuhei KAJI , Hirokazu FUJINO , Kazuhiro FURUSHO
IPC分类号： F25B41/20 , F25B13/00
摘要： A refrigeration cycle apparatus uses a sensor that measures temperature of a plurality of refrigerant pipes in a contactless manner. A refrigeration cycle apparatus includes a refrigerant circuit in which a compressor, a heat-source-side heat exchanger, an expansion mechanism, and a use-side heat exchanger are connected in sequence. The refrigeration cycle apparatus includes a temperature detector that detects temperatures at a plurality of points in a contactless manner, and a heat-source-side controller. At least one heat-source-side heat exchanger and the use-side heat exchanger includes a plurality of refrigerant pipes through which refrigerant to be heat-exchanged flows, and a flow rate adjuster. The flow rate adjuster adjusts flow rate of the refrigerant flowing through each of the plurality of refrigerant pipes. The temperature detector detects respective temperatures of the plurality of refrigerant pipes. The heat-source-side controller controls the flow rate adjustment unit based on the temperatures detected by the temperature detector.

8. 发明申请

US20230014957A1 REFRIGERANT APPARATUS 有权
公开(公告)号：US20230014957A1
公开(公告)日：2023-01-19
申请号：US17956605
申请日：2022-09-29
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Kazushi HISAYAMA , Masanori UKIBUNE , Tetsuya OKAMOTO , Masao OHNO , Kebi CHEN
IPC分类号： F25B49/02 , F25B13/00
摘要： A refrigeration apparatus includes a refrigerant circuit switchable between a first operation of performing a refrigeration cycle in which a first compressor is stopped and a second compressor is driven and a second operation of performing a refrigeration cycle in which the first and second compressors and are driven. The refrigeration apparatus further includes a reduction mechanism configured to reduce a refrigerant flowing into the first compressor while a first condition is satisfied during the first operation. The first condition indicates that an internal pressure of the first compressor is lower than an evaporation pressure of an evaporator.

9. 发明授权

US11555639B2 HVAC system 有权
公开(公告)号：US11555639B2
公开(公告)日：2023-01-17
申请号：US17009096
申请日：2020-09-01
申请人： TRANE INTERNATIONAL INC.
发明人： Yves Jacques Raimbault , Philippe Del Marcel Tisserand
IPC分类号： F25B1/00 , F25B49/02 , F25B41/31 , F25B41/20 , F25B41/40 , F25B13/00 , F25B29/00 , F25B39/00 , F25B43/00 , F25B47/02
摘要： There is provided a HVAC system comprising: a fluid circuit for conveying a refrigerant; a compressor for compressing the refrigerant; three heat exchangers defining an evaporator, an outdoor exchanger and a heat recovery exchanger provided along the fluid circuit; an expansion valve provided along the fluid circuit; and a receiver connected in parallel to the expansion valve, wherein a fill valve is located between the receiver and a connection upstream of the expansion valve and a drain valve is located between the receiver and a connection downstream of the expansion valve; wherein the fluid circuit comprises a plurality of valves which are configured to be controlled based on a selected operating mode such that at least one of the outdoor exchanger and the heat recovery exchanger is connected to a discharge line of the compressor and in series with one of the other heat exchangers which is connected to a suction line of the compressor, with the expansion valve disposed between the heat exchangers; wherein the fill and drain valves are configured to be controlled to store a volume of refrigerant in the receiver so as to provide an effective refrigerant charge in the fluid circuit that corresponds to the selected operating mode.

10. 发明申请

US20230003427A1 ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE 有权
公开(公告)号：US20230003427A1
公开(公告)日：2023-01-05
申请号：US17943392
申请日：2022-09-13
申请人： Toshiba Carrier Corporation
发明人： Takuya HIRAYAMA , Shogo SHIDA , Taishi NAGAHATA , Hayato TODA , Tomoaki KURITA
IPC分类号： F25B31/02 , F25B13/00
摘要： A rotary compressor of an embodiment has a rotating shaft, an electric motor, a compression mechanism, a balancer, and a balancer cover. The compression mechanism has a cylinder, a main bearing, and a sub-bearing. The balancer is provided on the rotating shaft on a second side of the sub-bearing in an axial direction thereof. The balancer cover covers the balancer. A lubricating oil supply path that opens on a second side end face in the axial direction is provided in the rotating shaft. A supply hole that allows the supply path to communicate with the outside of the balancer cover is formed in the balancer cover at a position facing the supply path in the axial direction. A seal mechanism that seals between the balancer cover and the rotating shaft is provided between the balancer cover and the rotating shaft while allowing relative movement between the balancer cover and the rotating shaft in the axial direction.

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