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WO/2021/036115A1 |
A refrigeration system (100) comprises: a multi-level compressor (10) comprising at least two levels of compression portions in sequential communication; a first refrigeration device having a first gas inlet end and a first gas discharge...
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WO/2021/036951A1 |
Provided is a wearable refrigeration cycle apparatus. The wearable refrigeration cycle apparatus comprises: a shell comprising a base plate and an air discharge port at a first end of the base plate, the shell being adapted to be attache...
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WO/2021/038852A1 |
This refrigeration cycle device comprises: a refrigerant circuit in which a compressor, a first heat exchanger, a first throttle device, a second throttle device, and a second heat exchanger are connected by means of a refrigerant pipe a...
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WO/2021/039249A1 |
A refrigerator oil according to the present invention contains: a lubricant base oil having a kinematic viscosity of 10 mm2/s or less at 40°C; and an oil agent which contains at least one substance that is selected from the group consis...
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WO/2021/039573A1 |
Provided are a compressor and a refrigeration cycle device that are applicable to compression of R32 refrigerant or a mixed refrigerant containing R32 refrigerant, and with which it is possible to prevent overheating of windings in an op...
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WO/2021/034135A1 |
A refrigerating apparatus using a non-azeotropic mixed refrigerant may include a compressor operable in a continuous operation mode and configured to compress the non-azeotropic mixed refrigerant, a condenser configured to condense the r...
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WO/2021/033426A1 |
According to the present invention, an oil recovery operation comprises a first operation of reducing the opening degree of a heat source expansion valve (28) and a second operation of increasing the opening degree of the heat source exp...
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WO/2021/032224A1 |
An equipment for water condensation contains a cooling circuit (1) which comprises an evaporator (11), a compressor (12), a condenser (13) and an expansion valve (14) connected by a system of pipes (15) with cooling fluid. The equipment ...
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WO/2020/256122A9 |
The invention addresses the problem of providing a novel low-GWP mixed refrigerant. Provided as means to solve the problem is a composition, which is a refrigerant-containing composition wherein the refrigerant contains trans-1,2-difluor...
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WO/2021/025156A1 |
Provided are a heat exchanger having a header, the pressure-resistance strength of which is increased with simple processing, and a heat pump device. The present invention comprises a gas header (70) to which a gas refrigerant pipe (19) ...
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WO/2021/023459A1 |
Disclosed is a low-temperature refrigeration device which is arranged in a frame (100) and comprises a working circuit (10) that forms a loop and contains a working fluid, the working circuit (10) forming a cycle comprising, connected in...
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WO/2021/025152A1 |
[Problem] To provide a working medium for a refrigerant compression-type refrigeration cycle device, said working medium comprising a hydrocarbon-containing refrigerant and a refrigerating machine oil, wherein the refrigerating machine o...
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WO/2021/024407A1 |
This refrigeration cycle device comprises a refrigerant circuit in which a compressor, a refrigerant-path switching device, an air-side heat exchanger, an expansion valve, a water-side heat exchanger, and an accumulator are connected via...
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WO/2021/024408A1 |
This chilling unit comprises: a housing; a refrigerant circuit which is disposed in the housing, through which a refrigerant flows, and in which a compressor, a heat-source heat exchanger, a first expansion unit, a second expansion unit,...
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WO/2021/023456A1 |
Disclosed is a low-temperature refrigeration device comprising a working circuit (10) that forms a loop and contains a working fluid, the working circuit (10) forming a cycle which includes, connected in series: a compression mechanism (...
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WO/2021/024410A1 |
This chilling unit has a mechanical compartment provided with: devices forming a refrigerant circuit through which a refrigerant circulates; a plurality of heat medium heat exchangers that exchange heat between the refrigerant and a heat...
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WO/2021/024409A1 |
This chilling unit comprises a housing in which is formed a rectangular machine room as seen in a plan view, an air heat exchanger provided on the top of the housing and having a blower room formed thereinside, and a first fan unit provi...
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WO/2021/024404A1 |
Provided is a chilling unit comprising: an upstream system circuit having a first refrigerant circuit and a second refrigerant circuit; a downstream system circuit having a third refrigerant circuit and a fourth refrigerant circuit; a he...
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WO/2021/023428A1 |
Disclosed is a refrigeration and/or liquefaction method using a system that includes a low-temperature refrigeration device (1) comprising a working circuit (10) which forms a loop and contains a working fluid, the working circuit (10) f...
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WO/2021/024380A1 |
A refrigeration cycle device according to the present invention includes a refrigerant circuit in which a compressor, a condenser, an expansion device, and an evaporator are connected in a circle, wherein: a refrigerant sealed in the ref...
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WO/2021/022766A1 |
A compressor cooling control method for an air conditioning unit, aiming at solving the problem of a poor cooling mode of an existing air conditioning unit to a compressor. The air conditioning unit comprises a liquid spray pipe (5), a m...
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WO/2021/023455A1 |
Low-temperature refrigeration device arranged in a frame (100) and comprising a working circuit (10) forming a loop and containing a working fluid, the working circuit (10) forming a cycle comprising in series: a compression mechanism (2...
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WO/2021/024443A1 |
A refrigeration cycle device (100) is provided with a compressor (1), a first heat exchanger (2), a second heat exchanger (4), an expansion valve (3), a flow rate adjustment unit (130), and a control device (10). The flow rate adjustment...
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WO/2021/024403A1 |
A chilling unit comprising: a plurality of air heat exchangers hving a plurality of heat transfer pipes and a plurality of fins; and a machine chamber unit formed in a rectangular box shape and having the plurality of air heat exchangers...
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WO/2021/023457A1 |
The invention relates to a method for cooling and/or liquefying a user fluid flow, the method using a cooling and/or liquefying system comprising a low-temperature refrigeration device (1), the refrigeration device (1) comprising a worki...
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WO/2021/023458A1 |
Disclosed is a low-temperature refrigeration device comprising a working circuit (10) that forms a loop and contains a working fluid, the device (1) further comprising a cooling exchanger (8) for extracting heat from at least one member ...
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WO/2021/019687A1 |
This air conditioning device (1) is provided with a first refrigerant circuit (2) in which a first refrigerant is sealed, and a second refrigerant circuit (3) in which a second refrigerant is sealed. The first refrigerant circuit (2) inc...
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WO/2021/022192A1 |
A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a first stage and a second stage downstream of the first stage, and a cooling line configured to cool power electronics. Th...
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WO/2021/019688A1 |
An air conditioning device (1) comprises a first refrigerant circuit (2) filled with a first refrigerant and a second refrigerant circuit (3) filled with a second refrigerant. The first refrigerant circuit (2) includes a compressor (10) ...
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WO/2021/020461A1 |
Provided is a refrigeration cycle device such that, even if a refrigerant containing CF3I is used, it is possible to suppress corrosion of components of the refrigerant circuit caused by the refrigerant containing CF3I. A refrigerant cyc...
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WO/2021/015272A1 |
This heat exchanger comprises: a heat dissipation unit (20) that is provided with a heat exchange core (230) that dissipates heat from a high-pressure refrigerant into a first air flow by heat exchange between the first air flow and the ...
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WO/2021/015270A1 |
This heat management apparatus comprises: a first heat dissipation unit (12) that dissipates heat from the refrigerant discharged from a compressor; a second heat dissipation unit (16A) that dissipates heat from the refrigerant discharge...
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WO/2021/014640A1 |
The present invention provides a refrigeration cycle device including: a compressor; an indoor heat exchanger; an outdoor heat exchanger including a first outdoor heat exchanger and a second outdoor heat exchanger; a bypass flow passage ...
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WO/2021/015128A1 |
A method for operating a refrigerant circulation system that comprises a compressor, a condenser, an expansion mechanism, and an evaporator connected by piping in the stated order, wherein a refrigerant containing trifluoroiodomethane is...
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WO/2021/014893A1 |
In a heat exchanger, a heat dissipation part (20) comprises a plurality of heat dissipation component sections (201) that are laminated in a prescribed lamination direction (Ds) and that have heat dissipation flow passages (201c) formed ...
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WO/2021/014739A1 |
To provide a gas-liquid separator with a simple and compact structure capable of efficient gas-liquid separation, and a refrigerant circulation system, this gas-liquid separator comprises: a first refrigerant pipe that is introduced into...
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WO/2021/014566A1 |
This air conditioner comprises a refrigerant circuit in which a compressor, a condenser, an expansion unit, a receiver, and an evaporator are connected by piping, the refrigerant circuit being such that a refrigerant flows therethrough. ...
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WO/2021/014943A1 |
The purpose of this disclosure is to provide a refrigeration cycle device capable of suppressing retention of oil during indoor heating. A refrigeration cycle device (10) can perform indoor heating to warm blown air blown into a space ...
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WO/2021/014644A1 |
This air conditioning apparatus includes: a refrigerant circuit that has a compressor, a refrigerant flow path switching device, a heat-source-side heat exchanger, a restriction device, a heat transfer medium heat exchanger, and an accum...
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WO/2021/009881A1 |
This refrigeration cycle system comprises: a detection means for detecting a relevant physical quantity, which is a physical quantity relating to the state of a refrigerant circuit; and a control means for executing a circuit state deter...
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WO/2021/010130A1 |
A refrigerant circuit (6) of this refrigeration device (1) performs a refrigeration cycle in which a high pressure is equal to or higher than the critical pressure of a refrigerant or higher. The refrigeration device (1) performs at leas...
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WO/2021/010234A1 |
Provided is a refrigeration cycle system comprising a notification unit for providing notification regarding refrigerant leakage when refrigerant leakage is detected, wherein the laboriousness of inspecting the notification unit can be r...
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WO/2021/010721A1 |
A scroll compressor including an orbiting scroll having a small diameter compared to a case in which an oil groove is provided in a ring shape and constantly communicates with an outlet of an oil passage. The scroll compressor includes a...
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WO/2021/005701A1 |
The present invention provides a cooling system capable of comprehensively improving the efficiency of an evaporation/condensation phase-change cycle of a refrigerant. The cooling system of the present invention is characterized by havin...
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WO/2021/005737A1 |
An outdoor unit according to the present invention is provided with: a compressor that suctions, compresses, and discharges a refrigerant; a first refrigerant flow path switching device that switches refrigerant flow paths between coolin...
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WO/2021/005705A1 |
The objective of this invention is to prevent the generation of a surge phenomenon in a compressor by being able to respond quickly even when the load on a server to be cooled changes rapidly. In the present invention, a local cooler (1)...
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WO/2021/006184A1 |
In refrigeration cycle devices for performing water cooling of a heat exchanger, circulation pumps that cause cooling water for performing heat exchange to circulate are locally procured, and it was previously impossible for a refrigerat...
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WO/2021/003080A1 |
A coolant system includes a multistage compressor having a plurality of surge detection sensors. A condenser is connected to an outlet of the multistage compressor. An economizer is connected to an outlet of the condenser and has a gaseo...
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WO/2021/001869A1 |
This air conditioning device comprises a relay that has a first decompression device. The relay has a flow path switching valve that is provided to first refrigerant piping connected between a compressor and a load-side heat exchanger, a...
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WO/2021/001969A1 |
A control device (100) controls a heating capacity during a heating operation and a defrost capacity during a defrost operation. The control device (100) determines the defrost capacity in the defrost operation of a first refrigeration c...
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