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WO/2021/050859A1 |
An air conditioning system includes a main circuit having a multi-stage compressor, a condenser, a throttling element and an evaporator connected by pipelines; and a cooling branch, the inlet of which is connected to the main circuit bet...
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WO/2021/049191A1 |
According to the present invention, a refrigerant amount is easily determined. The present invention is provided with: an operation data acquisition unit which acquires operation data of an air conditioning system; a calculation unit whi...
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WO/2021/050707A1 |
A method for a refrigeration system according to an example of the present disclosure includes measuring a pressure of fluid in a refrigerant line of a heat exchanger of a refrigeration system, and measuring a value of at least one of a ...
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WO/2021/046107A1 |
A method of shutting down a refrigeration system including: initiating a shutdown process of the refrigeration system; closing a first valve within a refrigerant circuit of the refrigeration system; operating a compressor within the refr...
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WO/2021/044547A1 |
A compressor unit (20) comprises a first case (20a), a first compressor (21), a cascade heat exchanger (24), a second compressor (25), a first connection port (23), and a second connection port (28). The first compressor (21) and the cas...
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WO/2021/044548A1 |
A compressor unit (20) comprises a first case (20a), a compressor (21), a connection port (60), and a shutoff valve (67). The connection port (60) includes a first connection port (23) and a second connection port (28). The shutoff valve...
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WO/2021/036510A1 |
The present disclosure relates to a water chilling unit, an outlet water regulating method, and an air-conditioning system. The outlet water regulating method for a water chilling unit comprises: measuring an outlet water amount of a wat...
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WO/2021/038735A1 |
This air-conditioning apparatus comprises: a compressor; a temperature detection means for detecting the temperature of the outer shell of the compressor; a thermal protector that is configured so as to supply current to the compressor a...
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WO/2021/034136A1 |
A method for controlling a refrigerating system using a non-azeotropic mixed refrigerant is provided. The refrigerating system may include a first evaporator configured to supply cold air to a freezer compartment located upstream and a s...
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WO/2021/034134A1 |
A refrigerating system may include a compressor configured to compress a non-azeotropic mixed refrigerant, a condenser configured to condense the compressed non-azeotropic mixed refrigerant, a three-way valve configured to branch the non...
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WO/2021/030169A1 |
A cooling system includes a compressor operable to compress refrigerant, an accumulator upstream from the compressor. The accumulator is operable to collect liquid from the refrigerant. A sensor is located upstream from the accumulator. ...
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WO/2021/024412A1 |
The purpose of the present invention is to obtain a chilling unit and an air conditioning device with which workability can be improved.　This chilling unit is provided with: an apparatus that configures a plurality of systems of refrig...
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WO/2021/024406A1 |
This chilling unit comprises: a plurality of air heat exchangers that exchange heat between a refrigerant and air; a fan that is located above the plurality of air heat exchangers; and a mechanical compartment unit formed in the shape of...
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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/2021/023428A1 |
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/2021/023457A1 |
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/2020/182462A9 |
The present invention relates to a heat pump device (2) for a heating and/or hot water preparation system (1) having a refrigerant circuit (200) and a water circuit (100), to a heating and/or hot water preparation system (1) having a ref...
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WO/2021/021553A1 |
The present disclosure provides a refrigeration cabinet system and a method for controlling a refrigeration cabinet system. The refrigeration cabinet system includes: one or more indoor units, and an outdoor unit (1); wherein an outdoor ...
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WO/2021/017630A1 |
The present invention relates to a metro composite energy multifunctional tail end heat pump system using a capillary pipe heat exchanger, comprising energy ends, a user tail end and a heat storage water tank, the first energy end compri...
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WO/2021/012769A1 |
An oil return control method for a multi-split air conditioner, comprising: determining to enter oil return operation according to an operation load ratio Q in the system and accumulated time; then, adjusting the operation frequency of a...
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WO/2021/012967A1 |
The present invention belongs to the technical field of heat exchange, and specifically relates to an expansion valve control method for a multi-split air-conditioning system. The present invention aims to solve the problem that it is no...
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WO/2021/008176A1 |
A fault detection method and system for a water chilling unit, and a water chilling unit. The fault detection method for a water chilling unit comprises: obtaining fault operation data of a water chilling unit (S101); oversampling the fa...
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WO/2021/010212A1 |
The present disclosure solves the problem of selecting an installation location for a gas sensor at which a user or a service person can easily attach and detach the gas sensor. A gas sensor (55) for detecting refrigerant leakage is inst...
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WO/2021/011564A1 |
A heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system includes a first refrigerant circuit (102) having a first compressor (106) configured to circulate a first refrigerant through a first condenser (110) and a f...
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WO/2021/010233A1 |
The present invention provides a highly reliable refrigerant leakage notification device and a refrigeration cycle system provided therewith. A refrigerant leakage notification device (80) is provided with a refrigerant sensor (34), a de...
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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/2021/010234A1 |
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/2021/009102A1 |
The invention relates to a domestic refrigeration device (10a-k) comprising: at least one refrigeration compartment (14a-k) and at least a second refrigeration compartment (16a-k), and a refrigeration circuit (48a-k) having at least one ...
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WO/2021/010107A1 |
This refrigeration device comprises: a high temperature side refrigerant circuit in which a high temperature side refrigerant circulates; a low temperature side refrigerant circuit in which a low temperature side refrigerant circulates; ...
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WO/2021/009841A1 |
A display for displaying a refrigeration circuit diagram for a refrigeration cycle device formed by connecting multiple elements by means of piping, the display comprising: an information display unit for displaying the refrigeration cir...
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WO/2021/010295A1 |
Provided is a refrigeration cycle system capable of achieving high reliability in terms of refrigerant leak countermeasures, without affecting the communication of control signals of a refrigeration cycle unit. An air conditioning system...
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WO/2021/010296A1 |
In adopting a flammable refrigerant, it is necessary to install a gas sensor that detects the refrigerant in case of a refrigerant leak, and the present disclosure addresses the problem of selecting the installation location of the gas s...
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WO/2021/004553A1 |
A method and system for controlling an electronic expansion valve. In existing technical solutions for regulating electronic expansion valves on the basis of the target exhaust temperature of a compressor, electronic expansion valves are...
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WO/2021/004763A1 |
The invention relates to an arrangement for operating a plurality of air-liquid heat exchanger units connected in parallel, wherein each unit comprises at least one electrically driven fan and an electrically controllable valve arranged ...
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WO/2021/004486A1 |
An air conditioning device control method, applied to a heating mode, and comprising the following steps: at startup, controlling a compressor to be up-converted to a natural frequency for running, and enabling an outdoor fan to work at ...
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WO/2021/004304A1 |
A refrigeration/heat pump system having two-stage compression and multiple air supplementations, a control method therefor and an air conditioner, the refrigeration heat pump system comprising: a high pressure stage compression part (100...
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WO/2021/005072A1 |
A cooling device has the following features: an evaporator (100) for evaporating a working fluid (110), said working fluid (110) being held on an evaporator base (120); a compressor (200) for compressing evaporated working fluid (130), s...
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WO/2021/007084A1 |
The present disclosure relates to a novel method to detect an imminent compressor stall by using nonlinear feature extraction algorithms. The present disclosure focuses on the small nonlinear disturbances prior to deep surge and introduc...
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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/2021/003053A1 |
The present application provides a refrigeration unit. The refrigeration unit comprises: a refrigeration circuit including a compressor, a condenser, a thermal expansion valve, and an evaporator connected into a circuit; and a heat recov...
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WO/2020/258795A1 |
Provided are a multi-stage compression air-conditioning system and control method thereof, the system comprising: a two-stage compression system (12), comprising a low-stage compression assembly (121), a high-stage compression assembly (...
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WO/2020/259131A1 |
Disclosed is a water cooling unit, comprising: a compressor, wherein the compressor comprises a primary compression cavity and a secondary compression cavity communicating with each other, and has a gas suction port, a low-pressure gas s...
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WO/2020/263764A1 |
Methods and systems for power management are provided. Aspects include receiving, by a controller (302), load data associated with two or more refrigeration systems, wherein the two or more refrigeration systems comprise at least a first...
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WO/2020/255355A1 |
An outdoor unit (2) includes a heat exchanger (40) and a liquid receiver (30). The heat exchanger (40) performs heat exchange between a refrigerant flowing through a first passage (H1) and a refrigerant flowing through a second passage (...
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WO/2020/256587A1 |
The present invention relates to means for removing condensate from heat-exchange apparatuses, more specifically from refrigerating and ventilating plants, from conditioners, heat pumps and recuperators. The technical problem, the soluti...
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WO/2020/257056A1 |
A heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system (100) includes a refrigerant circuit (104) configured to flow a refrigerant therethrough, a sump (102) configured to direct a lubricant to a compressor (106),...
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WO/2020/252141A1 |
A dual redundant cooling system (200, 300) for a container (500) is provided. The dual redundant cooling system (200, 300) includes a first cooling unit (200) and a second cooling unit (300). The first cooling unit (200) is positioned in...
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WO/2020/249579A1 |
The invention concerns a method for managing a thermal management device (1) for a motor vehicle, comprising the following steps: - increasing the speed of rotation of the compressor (3) to its maximum speed, - determining a modified set...
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WO/2020/250889A1 |
Manufacturing costs increase when the specifications of a shut-off valve of a refrigeration cycle device become excessive. This air conditioning device (1), which circulates a flammable refrigerant in a refrigeration cycle (10), is provi...
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WO/2020/251723A1 |
A coolant cycle system for cooling a structure includes a two stage compressor configured to compress a coolant. The two stage compressor has a first stage with a first stage inlet and a first stage outlet and a second stage with a secon...
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