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WO/2024/081532A1 |
Cascaded Cold Climate Heat Pump systems ("CCCHP") and methods are disclosed. A CCCHP provides efficiency improvements over traditional heat pump systems by utilizing a connected cascaded circuit configuration, to apportion compressor loa...
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WO/2024/075336A1 |
This compressed air energy storage device comprises: a compressor that is driven by an electric motor and compresses air; a first heat exchanger that heats a heat storage medium through heat exchange with compressed air compressed by the...
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WO/2024/071213A1 |
This refrigeration cycle device (1) comprises a first circuit (5a), a second circuit (10), a cascade heat exchanger (35), and a control unit (80). A first refrigerant circulates through the first circuit (5a). A carbon dioxide refrigeran...
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WO/2024/071215A1 |
This refrigeration cycle device (1) comprises: a first circuit (5a) through which a first refrigerant circulates; a second circuit (10) through which a carbon dioxide refrigerant and a refrigeration machine oil circulate; a cascade heat ...
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WO/2024/071214A1 |
A refrigeration cycle device (1) comprises: a first circuit (5a) in which a first refrigerant circulates; a second circuit (10) in which a carbon dioxide refrigerant and a refrigerating machine oil circulate; a cascade heat exchanger (35...
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WO/2024/058136A1 |
According to the present invention, when employing a refrigeration cycle circuit equipped with a heat storage device while employing a multi-stage refrigeration cycle, a sufficient amount of refrigerant in the refrigeration cycle circuit...
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WO/2024/059395A1 |
Various embodiments described herein relate to a test chamber device an associated methods and non-transitory machine-readable media including a test chamber, a system builder that is configured to build and apply an equipment load to th...
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WO/2024/053121A1 |
A refrigeration device 1 comprises: a low-temperature refrigeration cycle 10 in which carbon dioxide is used as a low-temperature refrigerant and circulated to cool an object to be cooled in a low-temperature evaporator 14; a high-temper...
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WO/2024/051098A1 |
An air-conditioning system, comprising a main compressor, a condenser, a throttling device and an evaporator, which are sequentially in communication with each other by means of a main channel, wherein an outlet of the evaporator is in c...
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WO/2024/045288A1 |
A phase-change cold-refrigeration process method and apparatus. Refrigeration is performed by using a multi-stage cascade phase-change cold-refrigeration cycle; liquid air is used as a final-stage refrigerant; and a refrigeration apparat...
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WO/2024/043317A1 |
The present invention provides a refrigeration device which is capable of switching between a single-stage operation and a dual-stage operation and which makes it possible to suppress heat leakage from a use-side apparatus to a refrigera...
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WO/2024/035968A1 |
A refrigeration system having a low stage and a high stage circuit. Each stage having a compressor, an evaporator or a condenser. The low stage includes a low stage refrigerant comprising R744. The high stage includes a high stage refrig...
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WO/2024/029567A1 |
Provided is a binary refrigeration device that performs a start-up operation rapidly, thereby making it possible to suppress a decrease in heating capability caused by worsening of the start-up operation. The present invention comprises:...
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WO/2024/023986A1 |
A two-stage refrigeration device (1000) comprises a first heat exchanger (12), a second heat exchanger (16), and a third heat exchanger (101). The first heat exchanger (12) exchanges heat between a first refrigerant and a second refriger...
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WO/2024/017611A1 |
The invention relates to a de-icing system (100) for an NH3/CO2 cascade unit comprising: • a first exchanger (E1); • a second exchanger (E2); • a first thermodynamic circuit in which a volume of CO2 in liquid or gaseous form circul...
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WO/2024/017531A1 |
The invention relates to a compression refrigeration machine (10) comprising: a compressor (11) which is designed to compress vaporous working medium starting from an inlet pressure of the compressor (11) to an outlet pressure of the com...
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WO/2024/020039A1 |
Methods for improving a refrigeration systems comprising modifying the system and replacing existing refrigerant with a replacement refrigerant comprising : (1) at least about 50% by weight of R1234ze(E); (2) greater than 0% to about 11%...
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WO/2024/014955A1 |
The invention relates to a thermoelectric heat pump comprising a heat exchanger block with a first channel for flow therethrough of a first heat transfer fluid such as a liquid medium and a separate second channel for flow therethrough o...
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WO/2023/248923A1 |
A first heat exchanger (13), a compressor (12), and an expansion valve (15) provided to a freezing apparatus (R1) are disposed outdoors and are connected to a first pipe (11) for circulating a first working medium (outdoor-side circuit (...
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WO/2023/233654A1 |
The present invention is provided with: a high-stage-side refrigeration cycle circuit which connects a high-stage-side compressor, a high-stage-side condenser, a high-stage-side throttle device, and a high-stage-side evaporator to each o...
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WO/2023/233937A1 |
A two-stage refrigeration apparatus 1 comprises: a low-stage side refrigeration cycle 10; a high-stage side refrigeration cycle 20; and a control device 30. The control device 30: reduces the rotational speed of a low-stage side motor 11...
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WO/2023/229909A1 |
The present invention provides cascade refrigeration systems in which the low stage comprises a refrigerant with a GWP less than 150, and the high stage comprises a refrigerant that is either Class A1 or Class A2L and comprises at least ...
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WO/2023/229966A1 |
Disclosed are refrigerants and refrigeration systems, including cascade refrigeration systems comprising: a plurality of refrigeration units, each refrigeration unit containing a first refrigeration circuit, each first refrigeration circ...
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WO/2023/223558A1 |
This dual refrigeration device comprises a first compressor (10), a first heat exchanger (12), a liquid receiver (13), a first expansion valve (15), a second heat exchanger (16), a second compressor (100), a third heat exchanger (101), a...
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WO/2023/223559A1 |
This outdoor unit (1) comprises a first compressor (10), a first heat exchanger (12), a liquid receiver (13), a second compressor (100), a third heat exchanger (101), a second expansion valve (102), a solenoid valve (17), a first pressur...
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WO/2023/207126A1 |
The present invention relates to the technical field of cascade heat pumps, and specifically provides a cascade heat pump system and a control method therefor, aiming to solve the problem that existing cascade heat pump systems are low i...
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WO/2023/199800A1 |
This refrigeration cycle device causes a first refrigerant to circulate in a first refrigerant circuit, and cools a first target with the first refrigerant. The refrigeration cycle device comprises a first compressor, a first heat exchan...
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WO/2023/199464A1 |
A refrigeration cycle device according to the present invention circulates a first refrigerant that is carbon dioxide through a first refrigerant circuit, and cools a first object using the first refrigerant. The refrigeration cycle devi...
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WO/2023/196637A1 |
A system utilizing cascading heat pump circuits (HPCs) is employed to efficiently transfer heat from low temperature reservoirs to high temperature reservoirs. The system of cascading (e.g., multistage) HPCs include at least two HPCs tha...
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WO/2023/189382A1 |
Provided is a two-stage refrigeration device that starts up quickly and suppresses reductions in compressor reliability as well as increases in power consumption. The present invention comprises: a high-side refrigerant circuit (2) that ...
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WO/2023/190233A1 |
This heat pump device includes a low order-side circuit, a high order-side circuit, a water circuit, a use-side terminal, and a control device. The low order-side circuit circulates a first refrigerant. The high order-side circuit circul...
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WO/2023/192569A1 |
A cascade refrigeration system having a first refrigeration stage that defines a first fluid circuit and includes a first expansion device and a second refrigeration stage that defines a second fluid circuit, fluidically isolated from th...
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WO/2023/176870A1 |
This outdoor unit for a refrigeration device is provided to a first refrigerant circuit in which a first refrigerant circulates, and is connected to a first expansion valve and a first evaporator. The outdoor unit for a refrigeration dev...
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WO/2023/175821A1 |
A refrigeration apparatus (100) comprises: a first refrigerant circuit (1); a second refrigerant circuit (2); and control devices (7, 8). The first refrigerant circuit (1) circulates a first refrigerant and includes a first compressor (1...
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WO/2023/166907A1 |
This refrigeration device comprises a first refrigerant circuit including a first compressor, a first condenser, a first expander, and a first evaporator, N (N is a natural number at least equal to 2) condenser coolers forming a flow of ...
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WO/2023/135223A1 |
The invention relates to a device (100) for expanding a gas having a main expansion valve (105) and at least one main thermodynamic system (120) using a heat transfer fluid (125) for heating the gas to be expanded upstream of the main ex...
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WO/2023/119552A1 |
According to the present invention, an air conditioner comprises outdoor equipment, refrigerant indoor equipment, first intermediate equipment, second intermediate equipment, first heat medium indoor equipment, and a hot water tank. The ...
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WO/2023/112844A1 |
This refrigeration device 10 comprises a high-temperature-side refrigeration circuit 20 and a low-temperature-side refrigeration circuit 30. A water cooler 38 is provided between a compressor and a condenser in the low-temperature-side r...
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WO/2023/109130A1 |
A multi-stage compressor and an air-conditioning unit. The multi-stage compressor comprises a flash evaporator (10), wherein the flash evaporator (10) is built in the multi-stage compressor; a refrigerant inlet (101) of the flash evapora...
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WO/2023/079116A1 |
Provided is a refrigeration system (100) for a transport unit (10). The refrigeration system (100) has a refrigeration cycle (101) comprising a compressor (120), an evaporator (110), a condenser (151) fluidically coupled downstream of th...
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WO/2023/079114A1 |
Provided is a cascade refrigeration system (100) for a transport unit (10). The cascade refrigeration system (100) has a first refrigeration cycle (101) comprising a first compressor (120) and a first expansion valve (140), a second refr...
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WO/2023/079123A1 |
Provided is a heat exchanger arrangement (200) for a refrigeration system (100). The heat exchanger arrangement (200) comprises a heat exchanger (210) having a first flow path (211), a second flow path (212), and a heat exchange interfac...
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WO/2023/075971A1 |
The disclosed technology includes a heat pump having a thermal energy storage (TES) material. The heat pump can include a first heat exchanger to exchange heat between ambient air and refrigerant, a second heat exchanger to exchange heat...
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WO/2023/073280A1 |
Heat pump arrangement, the arrangement comprising at least two heat circuits, wherein each circuit is arranged to circulate a fluid specific for the circuit, and each circuit comprises an evaporator for evaporating the fluid from liquid ...
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WO/2023/067807A1 |
A binary refrigeration device (10) comprises: a first refrigeration cycle (1) in which a first refrigerant circulates, the first refrigeration cycle including a first compressor (11), a condensation device (12), a first expansion valve (...
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WO/2023/066808A1 |
The invention relates to a cooling system (100). The cooling system (100) comprises: a refrigeration circuit comprising an evaporator (101), a compressor (102), a pressure reducer (107), a gas cooler (103) and a conduit system (104) inte...
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WO/2023/054273A1 |
Provided are a cascade unit and a refrigeration cycle device capable of cooling an electrical component. This refrigeration cycle device (1) comprises a primary-side refrigerant circuit (5a), which has a primary-side heat exchanger (74),...
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WO/2023/054188A1 |
Provided are a cascade unit and a refrigeration cycle device capable of cooling electrical components. A cascade unit (2) of a refrigeration cycle device (1) comprises: a primary-side refrigerant circuit (5a) having a primary-side heat e...
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WO/2023/052244A1 |
The invention relates to a device for controlling the temperature of a space (5) to be temperature-controlled, the space having a space boundary (20) that separates the space to be temperature-controlled from the surroundings (21), the d...
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WO/2023/054224A1 |
This cascade unit (2) is a cascade unit of a refrigeration system (1) having a first circuit (5a), a second circuit (10), and a cascade heat exchanger (35). The first circuit (5) has a first connecting part (C1). Among first piping (P1) ...
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