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Patent Searching and Data


Matches 1 - 50 out of 10,254

Document Document Title
WO/2018/088130A1
Provided is a vehicle air conditioning device capable of accurately detecting frost formation on an outdoor heat exchanger even if variations occur in parts. Frost formation on an outdoor heat exchanger 7 is determined on the basis of a ...  
WO/2018/088124A1
Provided is a vehicular air conditioner capable of eliminating the inconvenience that a compressor is operated in a state where the operational efficiency is low. The progress of frost formation on an outdoor heat exchanger 7 is determin...  
WO/2018/084459A1
An air conditioner is disclosed. The disclosed air conditioner, in which an indoor heat exchanger, an outdoor expansion device, an outdoor heat exchanger, an accumulator, a compressor, and an oil separator are connected in sequence, comp...  
WO/2018/082282A1
A multi-split system and a liquid return prevention control method thereof during defrosting of the multi-split system. The method comprises the following steps: when the multi-split system is in heating operation, detecting gas exhaust ...  
WO/2018/082281A1
A multi-split system and liquid return prevention control method thereof. The method comprises the following steps: when the multi-split system is in heating operation, if an outdoor unit (20) receives a defrosting instruction, controlli...  
WO/2018/083015A1
The present invention relates to a top cover (5) for soft throttling valve body (2), the top cover (5) comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in ...  
WO/2018/076252A1
A refrigerating heat pump type frost-free air conditioner comprises an outdoor unit housing (4), an evaporator (12), a fan (11), a middle partition plate (9), a compressor and frequency conversion electric control module space, a frequen...  
WO/2018/076251A1
A refrigerating heat pump type frost-free air conditioner comprises an outdoor unit housing (4), an evaporator (12), a fan (11), a middle partition plate (9), a compressor and frequency conversion electric control module space, a frequen...  
WO/2018/072727A1
A method and device for defrosting an air conditioner. The method comprises the following steps: detecting a refrigerant pressure of a heat exchange; obtaining, according to the detected refrigerant pressure of the heat exchange, a corre...  
WO/2018/074272A1
The purpose of the present invention is to provide a refrigeration device which introduces a refrigerant which has changed state as a result of defrosting, into another cooling unit via a defrosting liquid pipe, and evaporates said refri...  
WO/2018/064757A1
A method and system for defrosting a refrigerant coil using at least one of resistive and electromagnetic heating. The method and system involves providing a refrigerant tube formed from an electrically conductive material, an upstream r...  
WO/2018/054052A1
An air conditioner and a defrosting system thereof. The defrosting system comprises an enthalpy increasing compressor (11), an outdoor heat exchanger (12), an indoor heat exchanger (13) and an economizer (14); the enthalpy increasing com...  
WO/2018/047416A1
An air conditioner is provided which obtains improved power saving performance by avoiding decreases in refrigeration cycle efficiency. This air conditioner is provided with a main circuit which circulates a refrigerant and which compris...  
WO/2018/043454A1
In order to allow water in a hot water supply tank (60) to be warmed both during a cooling operation and a heating operation, a refrigerant channel that extends from a discharge side of a compressor (10) to a port (a) of a refrigerant sw...  
WO/2018/043571A1
Provided is a freezing apparatus that, even in the event of a refrigerant leak taking place during a defrosting operation of a utilization-side heat exchanger, is able to minimize the amount of leakage. In the case where the situation of...  
WO/2018/040527A1
Disclosed are a method and system (200, 600) for detecting a dirt blockage of a heat exchanger of an air conditioner based on fan power, and an air conditioner (700, 800). The detection method comprises the following steps: acquiring the...  
WO/2018/042611A1
This refrigeration air conditioning system comprises a plurality of independent refrigeration air conditioners G1 - G4 that have a refrigerant circuit and a defrosting means, and a system controller 100 that performs integrated managemen...  
WO/2018/033967A1
This refrigeration device has: a main refrigerant circuit that includes a compressor, a heat-source-side heat exchanger, a load-side expansion valve, and a load-side heat exchanger; a hot gas refrigerant circuit that branches from the ma...  
WO/2018/032108A1
A refrigeration system operable in cooling mode and defrosting mode is provided. The refrigeration system includes a defrost line connecting a first reservoir to an evaporation stage for conveying at least part of the flash gas from the ...  
WO/2018/029763A1
This air conditioner has: a refrigerant circuit in which a compressor, a 4-way valve, a heat source-side heat exchanger, an expansion valve, and a load-side heat exchanger are connected; and a control unit that controls a refrigeration c...  
WO/2018/025382A1
Disclosed is a heat source system that is provided with a heat source unit that heats and cools a fluid, and a control device that controls the heat source unit. The heat source unit is provided with: a refrigerant circuit wherein a comp...  
WO/2018/026137A1
The present invention relates to a heat exchanger alternating-type heat pump system having a novel structure and enabling operation by connecting different types of heat sources or different types of loads to the plurality of heat exchan...  
WO/2018/022097A1
A refrigerant system includes a compressor connected to a first valve forming a harvest line, a condenser connected to the compressor by a first segment of conduit and an expansion device by a second segment of conduit with the condenser...  
WO/2018/020653A1
Provided is a freezer-refrigerator that comprises: a refrigeration cycle; a defrost heater for melting frost adhering to a cooler; a defrost temperature sensor for detecting the cooler temperature; and a control device that ends energiza...  
WO/2018/020621A1
Provided is an air conditioning device comprising a heat source, a plurality of indoor units, a relay device, and a control unit. The relay device has a liquid state detection unit, a gas/liquid separation device, a second flow rate cont...  
WO/2018/011845A1
This refrigerating device comprises: a main refrigerant circuit in which a compressor, a condenser, a throttling device, and an evaporator are connected via refrigerant piping; a first bypass circuit that returns refrigerant discharged f...  
WO/2018/008130A1
This air conditioning device has: a plurality of heat-source-side units including a compressor and a heat-source-side heat exchanger; a load-side heat exchanger and a load-side throttle device; a first header for branching the connection...  
WO/2018/008108A1
In a refrigeration cycle system (1) according to the present invention, a refrigerant is made to circulate through a first heat exchanger (101), a compressor (102), a second heat exchanger (103), and an expansion valve (104) in this orde...  
WO/2018/003696A1
A usage-side unit (12) has a usage-side heat exchanger (51) and an expansion valve circuit unit (52). The expansion valve circuit unit (52) has: a temperature-sensitive usage-side expansion valve (53); a main pipe (60) for channeling a r...  
WO/2017/221400A1
An outdoor heat exchanger (11) of this air-conditioning device (1) is equipped with a main heat exchanger unit (13) and an auxiliary heat exchanger unit (15). When performing operation in which the outdoor heat exchanger (11) functions a...  
WO/2017/217904A1
Method and device for reducing or eliminating a temperature drop of the supply air temperature during defrost operation, at an air handling unit (1) which is arranged with a heat pump (2) for recovering heat from an extract air stream (3...  
WO/2017/217383A1
A refrigeration cycle device (10) comprises: a plurality of refrigeration cycle units (11, 12, 13) that are configured by disposing a plurality of circuits (11a-d, 12a-d, 13a-d) each having a fan, a first controller to control the fan, a...  
WO/2017/216861A1
The air conditioner (1) comprises a bypass flow path (161) and a cooling/heating switching mechanism (150). The bypass flow path (161) is configured so as to serve as at least part of the flow path for connecting a third port (P3) to the...  
WO/2017/203680A1
This cooling unit is provided with: an evaporator; a drain pan disposed below the evaporator; a heater, which is disposed below the drain pan, and which performs heating; and a cover, which covers, with the drain pan, at least a part of ...  
WO/2017/198983A1
A liquid flow system (10) comprises a dosing device (18) for introduction of a chemical additive into a liquid flow circuit, said dosing device comprising an inlet port (25) in fluid communication with the liquid flow circuit and a conta...  
WO/2017/198321A1
The invention relates to a method for operating an air-conditioning system (10) which, in heat pump operation, can be used as a heat pump for heating an interior of a vehicle and, in cooling operation, can be used as a refrigeration unit...  
WO/2017/199289A1
Provided is an air conditioning device comprising: a first defrost piping that branches, from a main circuit, a portion of a refrigerant discharged from a compressor and supplies the refrigerant to a parallel heat exchanger to be defrost...  
WO/2017/195296A1
In a plurality of heat-source-side heat exchangers included in an outdoor unit of an air conditioning apparatus according to the present invention, a bypass circuit for defrosting is provided with a flow-rate adjustment mechanism for a r...  
WO/2017/191859A1
The purpose of the present invention is to provide a refrigerated container comprising a device capable of blocking a flow of air between a freight loading portion of the refrigerated container and a freezing unit of the refrigerated con...  
WO/2017/187505A1
Provided is a rotary flow path opening/closing valve which is capable of using one element to switch a refrigerant flow path to a plurality of patterns, and which has low power consumption. This rotary flow path opening/closing valve is ...  
WO/2017/185707A1
A heat pump water heater and a defrosting control method and device thereof. The method comprises the following steps: when the heat pump water heater enters a defrosting mode, obtaining a water inlet temperature of the heat pump water h...  
WO/2017/187655A1
In the present invention, during normal operation, a switch is made to a coolant circuit in which heat of a high-pressure coolant that has flowed out from an indoor radiator (12) is made to be stored in a heat storage member (17), and, w...  
WO/2017/184432A1
A decentralized condenser evaporator system includes (i) a condenser system positioned to receive a gaseous refrigerant from a centralized compressor system and configured to condense the gaseous refrigerant into a liquid refrigerant, (i...  
WO/2017/179500A1
A refrigerator equipped with a refrigeration cycle having at least a compressor (19), an evaporator (20), a main condenser (21), and a condensation prevention pipe (41). In addition, the refrigerator has a flow path switching valve (40) ...  
WO/2017/178275A1
A system (10) for deicing an external evaporator (50) for heat pump systems, the heat pump system comprising at least one compressor (12), at least one internal condenser (16), at least one external evaporator (50), at least one liquid s...  
WO/2017/179165A1
Provided is a refrigeration cycle device with improved energy-savings. This refrigeration cycle device comprises: a refrigerant circuit (10); a blower fan (20) which sends air to a heat exchanger (12); and a control unit (30). The contro...  
WO/2017/176838A1
A heat pump unit, which comprises: a heat pump system comprising a compressor, a refrigeration heat exchanger, a heating heat exchanger, a first heat exchanger, a flow path switching valve and a throttling element, wherein the throttling...  
WO/2017/176351A1
A refrigeration system having a refrigerant circuit including a condenser, a flow control device, an evaporator, and a compressor connected in series. The compressor is configured to circulate a cooling fluid through the refrigerant circ...  
WO/2017/175411A1
A defrosting method for removing a frost layer adhering to a cooling surface for cooling a gas to be cooled, wherein the defrosting method includes a heating/temperature-raising step in which the temperature of an adhesion surface, which...  
WO/2017/163337A1
A heat-pump-type heating apparatus (1) according to the present invention supplies heat to a heating terminal (70). The heat-pump-type heating apparatus (1) comprises a cooling cycle (10), a heat exchanging part (31), a heat dissipation ...  

Matches 1 - 50 out of 10,254