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WO/2021/134959A1 |
Disclosed are an air conditioner, and a method and device for controlling defrosting of the air conditioner. The air conditioner comprises a compressor (1) and a four-way valve (12) connected to an exhaust port of the compressor (1), whe...
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WO/2021/133058A1 |
One embodiment of the present invention may provide a cooling/heating and hot water supplying system comprising at least one heat pump unit, the heat pump unit comprising: a compressor for compressing a first medium; a first heat exchang...
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WO/2021/122656A1 |
The invention relates to a thermoplastic composition for a monolayer tube (T1, T2), and particularly to an air-conditioning circuit for a motor vehicle comprising tubes transporting a refrigerating fluid. The composition comprises in wei...
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WO/2021/122231A1 |
The present invention relates to a heat pump with a refrigerant circuit (100) having a compressor (10), an expansion unit (20), a condenser (30) and an evaporator (40), which are connected to refrigerant lines, and a refrigerant containe...
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WO/2021/124458A1 |
This refrigeration cycle device (100) is provided with: a compressor (1), a first outdoor heat exchanger (4), and a second outdoor heat exchanger (5) that are connected to a refrigerant expanding mechanism (8) and an indoor heat exchange...
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WO/2021/103465A1 |
Disclosed is a multi-split system with double air-injection enthalpy-increasing compressors. The multi-split system comprises two air-injection enthalpy-increasing compressors (1, 2). Exhaust ports of the two compressors (1, 2) are conne...
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WO/2021/106084A1 |
The purpose of the present invention is to provide a refrigeration cycle device that can achieve both higher cooling capacity and higher heating capacity. A refrigeration cycle device (1) is equipped with a high-order side refrigerant ci...
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WO/2021/098552A1 |
A heat pump type air-conditioning system and a control method therefor. The heat pump type air-conditioning system comprises a compressor (1), an indoor heat exchanger (2), an outdoor heat exchanger (4), and a throttling element (3); the...
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WO/2021/093228A1 |
A heat pump system (100) and a control method for the heat pump system. The heat pump system (100) comprises a compressor (110), an oil separator (120), a cold-medium heater (130), a controller, and a temperature sensor (153) used to mea...
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WO/2021/093227A1 |
A heat pump system and an anti-dry-heating control method. A cold-medium heater (130) of the heat pump system (100) is connected in between a compressor (110) and an oil separator (120). The anti-dry heating control method comprises: sta...
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WO/2021/094787A1 |
A heat pump system with a refrigerant flow path comprising, in the heating mode of operation: a compressor coupled to receive refrigerant from a heating mode first refrigerant stream and a heating mode second refrigerant stream of the re...
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WO/2021/095134A1 |
The purpose of the present invention is to provide an outdoor unit and an air conditioner device with which it is possible to smoothly switch the flow paths of two serially arranged four-way valves. A first partition part (136b) includes...
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WO/2021/088202A1 |
An intelligent defrosting control method and control system for a heat pump system. The heat pump system comprises two sub-systems, which share a water-side heat exchanger. When one of the sub-systems is controlled to perform defrosting,...
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WO/2021/088355A1 |
A direct-expansion air-conditioning system capable of performing ultralow-temperature cooling operation, comprising an outdoor unit and an indoor unit. The outdoor unit comprises a compressor (1), a main four-way valve (3), an auxiliary ...
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WO/2021/085529A1 |
The present invention aims to alleviate the risk of leakage of refrigerant from a refrigerant circuit and particularly at the utilization side of the refrigerant circuit without the need to provide a dedicated bypass for refrigerant leak...
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WO/2021/073035A1 |
An air conditioner and a control method therefor, and a readable storage medium. The control method for the air conditioner comprises the following steps: controlling the air conditioner to operate in a heating mode for a preset period o...
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WO/2021/069929A1 |
A pumped heat storage apparatus has a prime mover, a power take off, first and second fluid working machines functioning as a compressor (8) and as an expander (10), a working fluid circulation pathway with high and low pressure sides, a...
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WO/2021/063272A1 |
The present application provides a heat management system. The heat management system comprises a compressor, a first heat exchanger, a first throttle device, a second heat exchanger, a third heat exchanger, and a fourth heat exchanger; ...
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WO/2021/065730A1 |
In this refrigeration cycle device, a large amount of refrigerant flowing from a heat exchanger in which the pressure of the refrigerant is high to a suction side of a container or a compressor in which the pressure is low is suppressed ...
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WO/2021/065156A1 |
A heat source unit (10) that comprises a heat source circuit (11) and is connected to a usage unit (50), thereby constituting a refrigeration circuit (2) that performs refrigeration cycles. The heat source unit (10) has: a switching mech...
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WO/2021/065847A1 |
The present disclosure relates to a heat pump (100) including a compressor (101) for compressing a refrigerant, a first heat exchanger (102), a main expansion mechanism (103) and a second heat exchanger (104) arranged in a refrigeration ...
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WO/2021/065118A1 |
A refrigeration device (1) in which a heat source unit (10) and a utilization unit (50) are connected to operate in a refrigeration cycle in which the high pressure of a refrigerant becomes equal to or higher than a critical pressure, sa...
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WO/2021/065117A1 |
This refrigeration device (1) comprises a gas-liquid separation device (15) on the downstream side of a radiator and a refrigerant circuit (6) in which the high pressure of a refrigeration cycle is equal to or higher than a critical pres...
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WO/2021/065677A1 |
Provided is an air conditioner (1) which is configured so as to enable simultaneous cooling and heating operation and equipped with a plurality of heat source side heat exchangers (81, 82) and a plurality of user side units (101a, 101b, ...
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WO/2021/065186A1 |
The present invention improves the efficiency during cooling operation in an air conditioner when the efficiency during cooling operation deteriorates as a result of using an ejector at the time of pressure loss in refrigerant piping or ...
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WO/2021/065678A1 |
According to the present invention, a heat source-side heat exchanger that functions as an evaporator is divided so that the heat source-side heat exchanger functions as an intermediate cooler as well. When this air conditioner is provid...
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WO/2021/053710A1 |
The purpose of the present invention is to provide an air conditioner and a control method which can prevent defrosting operation from applying an excessive load on a compressor. This air conditioner has multiple outdoor units, one or mo...
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WO/2021/053924A1 |
An air conditioner according to one embodiment carries out a heating operation and a cooling operation; carries out a cooling/heating mixed operation in which a higher priority is given to cooling by causing a portion of exhaust gas to f...
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WO/2021/050464A1 |
A refrigeration system includes a compressor connected to a first heat exchanger and a second heat exchanger. An expansion device is connected between the first heat exchanger and the second heat exchanger. A ratio of a volume of the fir...
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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/2021/044886A1 |
Provided is a refrigeration cycle device having excellent safety that can prevent water in a water heat exchanger from freezing. A water heat exchange unit has a water heat exchanger and a pump for circulating water between a water flo...
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WO/2021/037970A1 |
A common unit (10) for a refrigerant gas handling system (1) is described, the common unit (10) comprising an accumulator (4), a check valve (11), and a reversing valve (3). The check valve (11) and the reversing valve (3) are arranged t...
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WO/2021/040219A1 |
The present invention relates to a radiation-convection cooling and heating device, having a panel structure, comprising: cooling and heating panel parts which are provided in a plurality in a vertical array structure in a frame having a...
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WO/2021/037966A1 |
A common unit (10) for a refrigerant gas handling system (1) is described, the common unit (10) comprising an accumulator (4), a check valve (11), and a reversing valve (3). The accumulator (4), the check valve (11), and the reversing va...
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WO/2021/036781A1 |
A multi-split air conditioning system, comprising a first heat exchanging coiled pipe (101), a second heat exchanging coiled pipe (201), and multiple indoor units (3). Refrigerants having different temperatures flow in the first heat exc...
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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/2021/019686A1 |
An air-conditioning device comprising a heat source device, multiple indoor units, and a relay device connecting same, wherein: a gas-liquid separator is provided, the gas-liquid separator being configured to separate refrigerant flowing...
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WO/2021/012781A1 |
An air conditioner. The air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger (1), a compressor (2), a first directional valve (3), a second directional valve (4), and a heat collecting component (5). The indoor h...
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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/2021/014525A1 |
Provided is an air conditioning apparatus that exhibits the effect of making it possible to reduce the amount of refrigerant needed to fill both a first refrigerant circuit in which a load-side heat exchanger is made to function as an ev...
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WO/2021/012608A1 |
Provided is an air conditioning system, intended to solve the problems of the high cost, complicated structure, and inconvenient maintenance of existing air conditioning systems using a two-stage compressor or an air injection enthalpy-i...
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WO/2021/010957A1 |
The present disclosure relates to the field of air conditioning technology. In particular, it involves an air control method for air handler unit.
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WO/2021/005557A1 |
An improved Bernoulli heat pump, wherein the intake section of a Venturi tube is structured so that when the refrigerant flows from the intake section into and through most of the middle (narrow) section, its flow is essentially laminar....
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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/2020/261411A1 |
An air conditioner includes: an outdoor unit having a compressor and a heat source side heat exchanger; at least one indoor unit having a load side heat exchanger; at least one empty circuit having piping for connecting the load side hea...
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WO/2020/261387A1 |
This air conditioner is provided with: an outdoor unit having a compressor that compresses and discharges a refrigerant, and a heat source-side heat exchanger for heat exchange between the refrigerant and outdoor air; and a relay device ...
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WO/2020/253570A1 |
The present application relates to the technical field of thermal management, and in particular to a thermal management system. The thermal management system comprises a compressor, an outdoor heat exchanger, a first valve control device...
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WO/2020/250986A1 |
The present invention sets a refrigerant to be in a superheated state without degrading the performance of a cascade heat exchanger. A refrigerant cycle system (100, 200) is provided with a first refrigerant circuit (1, 201), a second re...
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WO/2020/250987A1 |
When using a flammable or toxic refrigerant, the allowable refrigerant filling amount per indoor volume may be limited, but patent document 1 does not describe limitations on the refrigerant filling amount. This refrigerant cycle system ...
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WO/2020/245918A1 |
This refrigeration cycle device is provided with: a refrigeration cycle circuit which connects a compressor, a refrigerant flow path switching device, an outdoor heat exchanger, an expansion valve and an indoor heat exchanger; a first br...
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