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WO/2017/082591A1 |
The present disclosure discloses a defrosting device, including a heating unit provided at a lower side of an evaporator, and configured to heat working fluid therein; and a plurality of heat pipes, both end portions of which are connect...
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WO/2017/078250A1 |
The present invention discloses an evaporator comprising: a case formed in an empty box shape and forming a storage compartment within; a cooling tube formed in a preset pattern on the case and filled therein with refrigerant for cooling...
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WO/2017/073212A1 |
This refrigeration cycle device is provided with: compression mechanisms (11a, 12a) for compressing and discharging a refrigerant; a radiator (13) for causing a heat exchange of the discharged refrigerant with outdoor air; an expansion v...
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WO/2017/073577A1 |
Provided is a refrigeration device in which it is easy to ensure heating capability and suppress noise generated at the time of returning to heating operation. This air conditioner (1), which is a refrigeration device, comprises, in a re...
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WO/2017/069386A1 |
The present invention discloses a defrosting device comprising: a heating unit provided in an evaporator; and a heat pipe having both ends thereof connected to the inlet and the outlet, respectively, of the heating unit, and having at le...
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WO/2017/063321A1 |
An air source heat pump spray defrosting device based on a super-hydrophobic finned tube heat exchanger, comprising a refrigerant loop, a hot water loop, and an air loop. The refrigerant loop comprises a compressor (1), a four-way valve ...
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WO/2017/061010A1 |
A control device with which a refrigeration cycle device according to the present invention is provided performs a refrigerant recovery operation when an operation mode is switched from a defrosting mode to a heating mode. The control de...
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WO/2017/056394A1 |
Provided is a refrigeration device (10) having a refrigerant circuit (20) in which a flammable refrigerant is used, wherein there is provided a defrosting control unit (91) for performing a first control for gradually increasing the high...
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WO/2017/050072A1 |
Provided are a water chiller-heater unit of an air cooled heat pump and a defrosting control method therefor. The water chiller-heater unit of the air cooled heat pump comprises: N modular units (100), water outlet pipes of the modular u...
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WO/2017/050073A1 |
A water chiller-heater unit of an air cooled heat pump and a defrosting control method therefor. The water chiller-heater unit of the air cooled heat pump comprises a first heating water system and a second heating water system. A first ...
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WO/2017/046983A1 |
The purpose of the present invention is to prevent icing-up of a heat exchanger configured using flat perforated pipes and to minimize excessive pressure loss of a refrigerant or size increases to the heat exchanger. This heat exchanger ...
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WO/2017/049258A1 |
A system and method of freeze protection for a chiller including a metering device in flow communication with a condenser, a controller in electrical communication with the metering device, wherein the controller is configured to determi...
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WO/2017/042912A1 |
This air conditioner is provided with: a switching valve provided between an expansion valve and an outdoor heat exchanger; and a bypass circuit of which a first end part is connected to refrigerant piping for connecting a compressor and...
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WO/2017/037891A1 |
A refrigeration cycle device provided with a compressor, a flow path switching valve, a usage-side heat exchanger, a first expansion valve, a second expansion valve, and a heat-source-side heat exchanger, wherein: the refrigeration cycle...
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WO/2017/037747A1 |
Method for controlling defrosting of the outer exchanger of a heat pump machine, comprising the steps of: defining in the outer air temperature/evaporation temperature plane three zones; acquiring the outer air temperature and the evapor...
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WO/2017/037771A1 |
A refrigeration cycle device configured such that, when starting a defrosting mode, a first depressurization device adjusts the flow rate of refrigerant so as to bring the superheat degree of the refrigerant on the intake side of a compr...
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WO/2017/037189A1 |
A system (10, 70) for deicing the external evaporator in a heat pump system, characterized in that it comprises: - a refrigeration circuit (20, 80), connected in input and in output to the heat pump system and adapted to convey coolant g...
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WO/2017/034314A1 |
The present invention discloses a defroster comprising: a heating unit having a heater case arranged vertically along an up-down direction on the outside of an evaporator, and a heater disposed vertically in the up-down direction inside ...
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WO/2017/034170A1 |
Disclosed is a defrosting apparatus that comprises: a heating unit provided below an evaporator; and a heat pipe connected to the inlet and outlet of the heating unit and having at least a part disposed adjacent to a cooling pipe of the ...
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WO/2017/029695A1 |
An air-conditioning device which melts a large amount of frost deposited thereon while maintaining the proper operation of a compressor by setting the defrosting operation time according to the low pressure of the compressor. This air-co...
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WO/2017/030076A1 |
The present invention addresses the problem of providing an air conditioner can take measures against impact sound when switching a four-way switching valve and minimize decreases in heating performance prior to transitioning to defrosti...
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WO/2017/022512A1 |
[Problem] To make it possible to delay frost accumulation on a heat sink with as little change as possible to the action of a decompression unit, so as not to adversely affect the coefficient of performance COP of a heat pump cycle. [Sol...
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WO/2017/022076A1 |
A refrigeration apparatus is provided with a heat source unit (1), a cooling unit (2), a low-pressure-gas pipe (5), and a bypass circuit (BC). Accommodated in the heat source unit (1) is a compressor (7), a condenser (8), and a pipe (1a)...
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WO/2017/018272A1 |
Provided is an exterior unit forming a portion of a refrigerating cycle device in which a refrigerant circulates and having an opening for maintenance, said exterior unit being provided with: an opening/closing panel that is attached to ...
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WO/2017/017813A1 |
Provided is an exterior unit forming a portion of a refrigerating cycle device in which a refrigerant circulates and having an opening for maintenance, said exterior unit being provided with: an opening/closing panel that is attached to ...
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WO/2017/010239A1 |
This refrigeration cycle device is provided with: a compressor (11) that suctions and discharges a coolant; an air-coolant heat exchanger (12) that exchanges heat between air and the coolant; an expansion valve (15) that reduces the pres...
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WO/2017/006596A1 |
Provided is a refrigeration cycle device capable of suppressing a reduction in heating capacity during simultaneous heating/defrosting operation. A control device selectively performs a first simultaneous heating/defrosting operation and...
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WO/2017/004416A1 |
A system and a method are provided including a system controller for a refrigeration or HVAC system having a compressor rack with a compressor and a condensing unit with a condenser fan. The system controller monitors and controls operat...
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WO/2016/206816A1 |
In order to deice a heat exchanger in evaporator operation of a cooling system (1), which heat exchanger was iced at low evaporation temperatures, wherein refrigerant (30) can flow or flows through the heat exchanger in evaporator operat...
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WO/2016/194189A1 |
Provided is a cooling apparatus, with a hot gas defrosting system, allowing defrosting time to be shortened and residual frost to be prevented. The cooling apparatus (100) according to the present invention comprises: a first hot gas cir...
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WO/2016/189739A1 |
In this air conditioning device, a heat source machine and an indoor machine including an indoor-side flow rate control device and an indoor-side heat exchanger are coupled to one another by means of refrigerant piping. The heat source m...
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WO/2016/187923A1 |
A defrosting control method for an air conditioner, comprising the following steps: when the air conditioner enters a defrosting mode, acquiring outdoor environment temperature and outdoor environment humidity; judging whether the outdoo...
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WO/2016/181105A1 |
A condensate valve is arranged at the lower end of a condensate conduit forming part of a cool gas gravity circuit for recirculating refrigerant between a heat store and an evaporator during a defrost cycle. A valve assembly is arranged ...
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WO/2016/166801A1 |
This air conditioning device 1 has the following two possible operations: a first parallel heating and defrosting operation in which hot gas discharged from a compressor 2 is supplied to a first heat source-side heat exchanger 6a by clos...
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WO/2016/166873A1 |
This heat pump system (300) is provided with: a refrigerant circuit (15) which has a refrigerant flow passage through which a refrigerant flows and a heating medium flow passage through which a heating medium flows, and in which the refr...
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WO/2016/157774A1 |
This control device (4) detects, in a refrigerant cycle device (2, 102) that has a plurality of evaporators (24A, 24B, 24C, 24D), a frost state or a pre-frost state in the evaporators. The control device controls the temperature of a pre...
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WO/2016/142535A1 |
The invention relates to a method for reducing the noise perceived during the defrosting of the external heat exchanger (5) of a heat pump (1), said heat pump (1) comprising a compressor (2), a four-way valve (6), an external heat exchan...
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WO/2016/139783A1 |
Provided is a refrigeration cycle device for suppressing fluid backflow to a compressor at the time of a hot gas reverse-type defrost operation. This refrigeration cycle device (1) executes a hot gas reverse-type defrost operation and in...
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WO/2016/139388A1 |
The invention relates to a cleaning device for cleaning the coils of heat pumps and similar devices. The cleaning device comprises a compressor (1), a water tank (2) and a detergent container (3). Compressed air, water and detergent are ...
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WO/2016/136128A1 |
A refrigerating device (10) is provided with a controller (120) that performs control so as to change defrost termination conditions or defrost capability in accordance with the time of duration of a stable temperature state in which the...
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WO/2016/138382A1 |
A method of controlling a refrigeration system having a compressor (22), a condenser (24), an evaporator (28), and a variable speed condenser fan (44) is provided. The method includes determining if a change in an ambient temperature or ...
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WO/2016/125647A1 |
A control device (216) is provided with a control unit (217). When operating a cooling cycle for cooling water using a water heat exchanger (201), the control unit controls the differential pressure determined by subtracting the pressure...
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WO/2016/121068A1 |
A refrigeration cycle device equipped with: a refrigerant circuit that includes a compressor, a flow path switching device, a heat-source-side heat exchanger, a first throttle device, and a usage-side heat exchanger; and a liquid backflo...
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WO/2016/121103A1 |
A refrigeration cycle device 1 equipped with a circuit 3 that includes a compressor 5, an outdoor heat exchanger 100, an expansion unit 7, and an indoor heat exchanger 9. The outdoor heat exchanger 100 is equipped with a fan 100a, an upw...
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WO/2016/117113A1 |
An air conditioner is equipped with a control unit that controls a refrigerant circuit switching device such that, during a first control period after a defrosting operation has been stopped, the rotational speed of a compressor is set l...
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WO/2016/113868A1 |
A refrigeration cycle device 100 provided with refrigerant piping 90 configured so that, in heating operation, a refrigerant flows through a compressor 1, a four-way valve 2, an indoor heat exchanger 3, a first expansion valve 4, a secon...
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WO/2016/113850A1 |
Provided is an air-conditioning device that can perform defrosting efficiently without stopping heating performed by an indoor unit. This air-conditioning device is equipped with: a primary circuit 50, which circulates a refrigerant, and...
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WO/2016/113851A1 |
An air conditioning device 100 comprises: a selecting means 31 for selecting a reverse defrost operating mode to stop heating operations and defrost all parallel heat exchangers 50 or a simultaneous heat and defrost operating mode to def...
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WO/2016/113912A1 |
Provided is a refrigerating and air conditioning device with which a rise in the inside temperature during a defrosting operation can be minimized. This refrigerating and air conditioning device is provided with: a refrigeration cycle in...
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WO/2016/111003A1 |
A heat storage unit 300 is provided with: a first connecting section 320; a second connecting section 322; a third connecting section 324; a fourth connecting section 326; a heat storage section 30 having a heat storage material 34 that ...
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