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Patent Searching and Data


Matches 1 - 50 out of 19,630

Document Document Title
WO/2019/029233A1
The interconnected components of an air conditioning system comprise an indoor heat exchanger (10), a four-way valve (20), a compressor (30), and an outdoor heat exchanger (40). The system further comprises a heat exchange part (50) prov...  
WO/2019/024683A1
Provided are a method and device for controlling an expansion valve. The method comprises: when a first specified quantity of indoor units are in a non-operating state, closing all expansion valves corresponding to the indoor units in th...  
WO/2019/024881A1
A control method for a heat pump system and a heat pump system. The heat pump system comprises a throttling element and a four-way valve (3); the four-way valve (3) has a first state when the heat pump system runs for refrigerating and a...  
WO/2019/027050A1
To improve the safety of a refrigeration device. An air conditioning system (100) comprises: a refrigerant circuit (RC) including a use-side circuit (RC2), a heat-source-side circuit (RC1), and a refrigerant release circuit (RC3); a refr...  
WO/2019/021380A1
This air conditioner has: a heat source device having a heat-source-side heat exchanger and a compressor; a first relay device connected to the heat source device by refrigerant piping; a second relay device connected to the first relay ...  
WO/2019/021464A1
An air conditioning device 100 is provided with: a flow channel switching device 2, which constitutes a refrigerant circuit wherein a compressor 1, heat source-side heat exchanger 3, intermediate pressure adjustment electronic expansion ...  
WO/2019/021431A1
Provided is a refrigeration cycle apparatus comprising a gas-liquid-oil separator that can be made more compact. The refrigeration cycle apparatus comprises a refrigerant circuit that includes a gas-liquid-oil separator (5) and in which ...  
WO/2019/017350A1
Provided is a highly reliable freezer capable of cooling the inside of a heat source unit casing by using a coolant, and capable of suppressing the occurrence of liquid compression caused by the supply of coolant to a heat exchanger for ...  
WO/2019/017299A1
Provided is an air conditioning system that minimizes noise relating to gas-liquid two-phase conveyance. The air conditioning system (100) performs a refrigeration cycle in a refrigerant circuit (RC) comprising an outdoor unit (10), a pl...  
WO/2019/017342A1
The present invention addresses the problem of providing a coolant flow-path branching pipe that can suppress noise at an outlet part. A coolant flow-path branching member (7) includes an outlet part (73) at which the cross-sectional are...  
WO/2019/017351A1
Provided is a highly reliable freezer which uses a liquid as a heat source, and is capable of preventing condensation and freezing in the use unit when performing a cooling operation which uses the liquid heat exchanger of a heat source ...  
WO/2019/017388A1
The present invention addresses the problem of providing an air conditioner that can suppress the generation of noise when a refrigerant delivered in a gas-liquid two-phase state to an indoor unit passes through an electric expansion val...  
WO/2019/001351A1
A thermal management system, the thermal management system comprising a refrigerant system, a first heat exchange system and a second heat exchange system. In a circulation mode of the thermal management system, the cooling liquid in the...  
WO/2019/003268A1
A device utilizing a heat pump comprises a refrigerant circuit and a heat transfer medium circuit. The refrigerant circuit can execute a first operation in which a load-side heat exchanger functions as a condenser and a second operation ...  
WO/2019/000869A1
Provided are an air conditioning system (200) and an air conditioning system (200) control method. A compressor (210) is formed with a first air suction port (211), a second air suction port (214), an air supplementing port (213), a cont...  
WO/2018/235832A1
A heat transfer system having a refrigerant circuit and a medium circuit. The refrigerant circuit has a refrigerant booster, an outdoor air heat exchanger, a medium heat exchanger, and a refrigerant flow path switching device, and a flui...  
WO/2018/227964A1
A water heater and a control method therefor. The water heater comprises a compressor (10), a four-way valve (12), a three-way valve (14), a first heat exchanger (16), a first fan assembly (18), a second fan assembly (22), a water tank (...  
WO/2018/227960A1
A novel air conditioning system, comprising: a compressor 102; an outdoor heat-exchanger 112; an indoor heat-exchanger 120; a four-way valve 114, which is provided between the compressor 102, the outdoor heat-exchanger 112, and the indoo...  
WO/2018/227920A1
An enthalpy increasing system for an air conditioner and a non-inverter air conditioner having same. The enthalpy increasing system for an air conditioner comprises a compressor (10) having an air supply opening, and a flash tank (30) ha...  
WO/2018/221052A1
The present invention is provided with: a detection unit (42) that detects whether or not the heating capacity in an indoor unit performing heating operation is deficient; and a control unit (43) that fully closes the indoor expansion va...  
WO/2018/221613A1
This refrigeration device (1), in which a heat source-side unit (2) and a use-side unit (3) are connected to each other, is provided with a gas-liquid separation unit (4) having: a gas-liquid separator (17) connected to a gas-side commun...  
WO/2018/215425A1
A reversible refrigeration system comprises a compressor (C) arranged to compress gaseous refrigerant, a four-way valve (FWV) switchable between a heating position in which a payload is heated and a cooling position in which the payload ...  
WO/2018/213243A1
Heat pump systems and methods of operating including a first unit having a first unit heat exchanger, a compressor, an accumulator, and a first unit expansion valve, a second unit fluidly connected to the first unit by piping, the second...  
WO/2018/211682A1
A chilling unit and a water-circulating temperature-adjustment system are provided with: a refrigerant circuit including a compressor, a pair of air-side heat exchangers, an expansion valve, and a heat medium-side heat exchanger which ar...  
WO/2018/208539A1
The present invention provides a heat pump system which comprises a compressor (110), a mode switch valve assembly (120), a mode switch flow path, and a first heat exchanger, a second heat exchanger and a heat recovery heat exchanger res...  
WO/2018/198726A1
Provided are a refrigerant channel switching unit and an air conditioner in which the interior of a case can be filled with a foaming agent fully without spaces therein and with which the number of foam fillings and the fill volume can b...  
WO/2018/193537A1
In this air conditioner in which a plurality of indoor units are connected to one outdoor unit, the outdoor unit includes two compressors, two outdoor heat exchangers, one outdoor fan, and one outdoor fan motor. The air conditioner has a...  
WO/2018/189942A1
In the present invention, first connection valves (82, 84, and 86) are provided respectively on refrigerant pipes connecting a refrigerant switching unit (20) with indoor heat exchangers (51, 52) and a hot-water supply heat exchanger (61...  
WO/2018/188269A1
Disclosed is a cold energy recovery-type variable-capacity air-source heat pump system, relating to combined heating and refrigerating systems running in an alternating or synchronous manner, wherein a first subsystem (1) and a second su...  
WO/2018/189805A1
This refrigeration cycle device (2) is provided with a flow passage switching section (162) and a control device (172). The flow passage switching section (162) is connected between an expansion valve (140) and a second heat exchanger (1...  
WO/2018/189826A1
A refrigeration cycle device comprises a refrigerant circuit in which a compressor, a heat source-side heat exchanger, a first expansion valve, a second expansion valve, and a load-side heat exchanger are connected via refrigerant piping...  
WO/2018/186044A1
To prevent a refrigerant in a compression chamber from flowing back through an injection flow path to a refrigeration cycle. The present invention is provided with injection piping 116 for supplying an injection refrigerant to a rotary c...  
WO/2018/185911A1
An air conditioning system comprises: an outdoor unit that has a compressor and an outdoor heat exchanger; a plurality of indoor units that each have a throttling device and an indoor heat exchanger and that are connected to the outdoor ...  
WO/2018/185823A1
When this refrigeration cycle device is performing cooling operations, a control device (30) sets a first expansion valve (3) to an open state, a second expansion valve (23) to an open state, a shut-off valve (9) to a closed state, and a...  
WO/2018/186250A1
A geothermal utilization heat exchanger (10) is installed between an outdoor heat exchanger (8) and an indoor heat exchanger (5). In addition, a first restriction part (15) configured from a first expansion valve (13) and a bypass valve ...  
WO/2018/177476A1
The invention relates to a heat pump, comprising a refrigerant circuit (1) which can be operated optionally in heating or cooling mode and has a refrigerant collector (2), on which a first opening (2.1) is provided for the supply of refr...  
WO/2018/181065A1
A control unit (19) that controls operation of a refrigerant circuit (10) performs pump-down operation for collecting a non-azeotropic refrigerant mixture in a part, of an outdoor unit (2), in the refrigerant circuit (10), performs compo...  
WO/2018/180240A1
In order to improve the heat exchanging efficiency of a heat exchanger provided with a windward side heat exchange part and leeward side heat exchange part, the windward side heat exchange part (51) is disposed on the windward side with ...  
WO/2018/176284A1
Disclosed is an air conditioner (100) comprising: a low back pressure compressor (1), the low back pressure compressor (1) comprising a housing (11) and an air cylinder, wherein the housing (11) has an air exhaust port (A) and an air ret...  
WO/2018/167820A1
When refrigerant leakage is detected by refrigerant leakage sensors (4A, 4B), a refrigerant recovery operation is initiated. In the refrigerant recovery operation, refrigerant recovery into an accumulator (108), and a pump down operation...  
WO/2018/154839A1
A dehumidifier (1) is provided with an evaporator (31), a condenser (33b), a housing (10), and a blower fan (21). A part of the air taken into the housing (10) by means of the blower fan (21) sequentially passes through the evaporator (3...  
WO/2018/154837A1
This dehumidifier (1) is provided with an evaporator (31), a compressor (32), a first condenser (33a), a second condenser (33b), a case (10) and a fan (21). The evaporator (31), first condenser (33a) and second condenser (33b) are arrang...  
WO/2018/156720A1
Distributed Climate-Control Systems and Methods with Distributed Protection against Refrigerant Loss: the system includes a central condenser unit in combination with a distributed network of air handling units. Each air handler includes...  
WO/2018/154838A1
This dehumidifier (1) is provided with an evaporator (31), a compressor (32), a first condenser (33a), a second condenser (33b), a case (10) and a fan (21). The evaporator (31), first condenser (33a), second condenser (33b) and fan (21) ...  
WO/2018/155028A1
In this system, while heat exchange is efficiently carried out through direct contact of multiple types of refrigerant, the refrigeration cycle function is made to function adequately without the problem of contamination of the refrigera...  
WO/2018/154836A1
A dehumidifier (1) is provided with an evaporator (31), a first condenser (33a), a second condenser (33b), a case (10), and a blower fan (21). Inside the case (10), a mixing space (41) is formed between the first condenser (33a) and the ...  
WO/2018/147413A1
Heat source unit (2) for an air conditioner (1) comprising a refrigerant circuit, the heat source unit comprising an external housing (10) accommodating a compressor (3) to be connected to the refrigerant circuit; a heat source heat exch...  
WO/2018/147235A1
Provided is an air conditioning device configured so that by causing a sufficient amount of refrigerant to flow into an indoor unit that is unable to provide cooling capacity, it is possible to provide sufficient cooling capacity in resp...  
WO/2018/142817A1
The purpose of the present invention is to mitigate the sensation of cold airflow from an air conditioner that performs heating using a vapor-compression refrigeration cycle and to promote an increase in room temperature. In the present ...  
WO/2018/139304A1
A refrigeration device (10) comprising a refrigerant circuit (20) that performs a freezing cycle in which one out of a heat exchanger (23) on a heat source side and a heat exchanger (28) on a usage side serves as a radiator and the other...  

Matches 1 - 50 out of 19,630