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Matches 1 - 50 out of 14,068

Document Document Title
WO/2018/084828A1
The present disclosure relates to the field of air conditioning technology. In particular, it involves a control method and control device based on a DC variable speed AC compressor.  
WO/2018/084849A1
The present disclosure relates to the field of air conditioning technology; In particular, it involves a control method and control device based on a DC variable speed AC compressor. The system acquires thermostat data and outdoor temper...  
WO/2018/082347A1
Provided is a water chilling unit (100), comprising: a compressor (1), an oil separator (4) which is connected to a condenser (3), an evaporator (2) and an oil return device (5). In the oil return device (5), a lead-in end (a) of a Ventu...  
WO/2018/080150A1
According to an embodiment of the present disclosure, an air conditioner includes an outdoor heat exchanger disposed in an outdoor unit and an indoor heat exchanger disposed in an indoor unit. The air conditioner also includes a refriger...  
WO/2018/079472A1
A control unit (19) of an air conditioning device (1) performs a first shut-off control for, on the basis of information from a coolant leakage detection means (79a, 79b, 79c, 79d) when there is coolant leakage, opening a liquid relay sh...  
WO/2018/080446A1
The present disclosure relates to the field of air conditioning technology. In particular, it involves a control method and control system based on a variable speed AC compressor.  
WO/2018/081249A1
A system may include a beverage compartment with a beverage positioned therein, a wetted material disposed about the beverage, at least one sorption cartridge, and a vacuum pump. The sorption cartridge may be in communication with the be...  
WO/2018/078883A1
This refrigeration cycle device (100) circulates a refrigerant through a compressor (1), an oil separator (2), a condenser (3), an expansion valve (4), an evaporator (5), and an accumulator (6) in this order. This refrigeration cycle dev...  
WO/2018/078729A1
Provided is a refrigeration cycle device (1) with which a pump-down operation can be executed while suppressing a reduction in performance. The refrigeration cycle device (1) comprises: an outdoor heat exchanger (7); a compressor (5) hav...  
WO/2018/077622A1
A method for controlling a heating capacity of a heat pump (2), e.g. by controlling a compressor (3), is disclosed. The heat pump (2) is arranged for supplying heat to a first heat sink, such as a space heating system (9), and to a secon...  
WO/2018/075398A1
A system includes a sensor and a controller for a refrigeration or HVAC system having a compressor. The sensor senses a temperature of the compressor during operation of the compressor. The controller is configured to determine a rate of...  
WO/2018/074452A1
Provided is a refrigerating device that ensures safety while inhibiting cost increases. A refrigerating device (100), which performs a refrigeration cycle in a refrigerant circuit (RC) that includes a compressor (11), a heat source-side ...  
WO/2018/073853A1
This indoor unit of heat pump utilization equipment constitutes a portion of the heat pump utilization equipment that comprises: a refrigerant circuit which circulates a refrigerant; a heating medium circuit which allows a heating medium...  
WO/2018/068531A1
Disclosed is a method for controlling the stopping of an air conditioner (600). The air conditioner (600) comprises a compressor (602), a throttle mechanism (604), an indoor fan (606) and an outdoor fan (608). The method for controlling ...  
WO/2018/070178A1
The present invention provides a vehicle air conditioner that can detect a lack of a refrigerant at the earliest possible stage accompanying a refrigerant leakage and the like over time, and can protect a compressor. The present inventio...  
WO/2018/067853A1
The present disclosure relates to a method for determining an efficiency curve (64) of a chiller (60) that includes operating a chiller (60) over a range of operating capacities, measuring a temperature of water entering the chiller (60)...  
WO/2018/067843A1
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (52) configured to provide power to a motor (50) that drives a compressor (3...  
WO/2018/061549A1
A compressor (12), air heat exchangers (50, 60), a receiver (15), and a system electrical component box (81) which correspond to each other are installed as one unit in each of a plurality of frame parts (70A, 70B, 70C, 70D) which are ar...  
WO/2018/062528A1
The present invention inhibits reduced reliability. A refrigeration device for performing a refrigeration cycle in a refrigerant circuit (RC) in an air conditioning system (100), the refrigeration device being provided with an outdoor he...  
WO/2018/062547A1
An air conditioner (1), having liquid-side indoor expansion valves (51a, 51b) corresponding to the liquid side of each indoor heat exchanger (52a, 52b), and gas-side indoor expansion valves (61a, 61b) corresponding to the gas side of eac...  
WO/2018/062485A1
Provided is a refrigerant amount determination method and refrigerant amount determination device capable of ascertaining an appropriate refrigerant filling amount according to the length of refrigerant connection piping in a refrigerati...  
WO/2018/062177A1
This air conditioner comprises: an outdoor unit having a compressor and an outdoor heat exchanger; an indoor unit having an indoor heat exchanger; and liquid refrigerant connection piping and gas refrigerant connection piping for connect...  
WO/2018/062184A1
Provided is an air conditioner that has: an outdoor unit; a plurality of indoor units each having an indoor heat exchanger; a relay unit for switching the plurality of indoor heat exchangers so as to cause the indoor heat exchangers to i...  
WO/2018/053911A1
A low-temperature activation method for a compressor (1) in a heat pump set comprises the following steps: after reception of a startup activation instruction from a compressor (1), controlling the compressor (1) to be activated by means...  
WO/2018/057446A1
Systems and methods of operating a refrigeration system including initiating a compressor shutdown operation (302), recording shutdown conditions (304), calculating one or more restart characteristics based on the recorded shutdown condi...  
WO/2018/056394A1
Provided is a motor driving device capable of suppressing load vibration as well as reducing motor loss. This motor driving device (50) is provided with a control unit (51) which adjusts the range of the allowed variation in the rotating...  
WO/2018/054879A1
The invention relates to a screw compressor system (100) for a utility vehicle, comprising at least one screw compressor (10), at least one screw compressor drive, at least one temperature probe (38) and at least one control and regulati...  
WO/2018/051159A1
A transport refrigeration system having: a first engine (26) configured to power a refrigeration unit (22); a first fuel tank (330) fluidly connected to the first engine through a first fuel line (332); a first shut off valve (450) locat...  
WO/2018/047265A1
A heat pump device comprising: a refrigerant circuit that circulates a flammable refrigerant; a heating medium circuit that causes a heating medium to flow therethrough; a heating medium heat exchanger that exchanges heat between the ref...  
WO/2018/042614A1
Disclosed is an air conditioning device having a refrigerant circuit, a power conversion device including a power module, and a control device that controls the refrigerant circuit and the power conversion device. The refrigerant circuit...  
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/2018/042495A1
This refrigeration cycle apparatus is provided with: a refrigerant circuit that is provided with a compressor, a condenser, a diaphragm device, and an evaporator; a light-emitting unit that emits light and that is provided to a flow pass...  
WO/2018/044902A1
A thermal management system includes a heat rejection device configured to fluidly couple to a refrigeration system, a fan configured to provide an entering airflow across the heat rejection device to cool a flow of water within the heat...  
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/2018/043721A1
Provided is a freezing apparatus that, in the event of a refrigerant leak, is able to minimize the extent of leakage even if the operation of the apparatus continues in sections where there is no leak. When the situation of refrigerant l...  
WO/2018/043430A1
A heat cycle system (1) that uses a working medium containing a hydrofluoroolefin (HFO) having a double bond in the molecular structure, wherein the heat cycle system has a compressor (10), a high pressure-side heat exchanger (12), a low...  
WO/2018/037482A1
This liquid level detection device (100) detects the liquid level of a liquid stored in a vessel that has a temperature sensor disposed therein. After executing a first heating process for heating the temperature sensor, a heating contro...  
WO/2018/033025A1
Provided are an electronic expansion valve (100), a control system, and a control method, comprising: a step motor (10) and a Hall sensor (3); the step motor comprises a rotor (1) and a stator (2); the rotor comprises a permanent magnet;...  
WO/2018/033243A1
The invention relates to an arrangement (1) comprising: a first and a second heat tank (2a, 2b); a thermochemical reactor (5) which is thermally and fluidically connected to the heat tank (2a, 2b); a heat transfer fluid circuit (3) conta...  
WO/2018/034846A1
The present invention provides a refrigeration display cabinet, a refrigeration system and a constant temperature control method. The refrigeration display cabinet includes: a refrigeration loop (110), including a compressor (111), a con...  
WO/2018/031071A1
Compressors in a refrigerant loop are driven by variable frequency drives. The variable frequency drives are configured to demand current from an alternating current power source at different phases relative to one another such that at l...  
WO/2018/025533A1
A refrigeration cycle device (10) is provided with a compressor (11), a radiator (12), a decompression mechanism (13), an evaporator (14), and a water detection device (20) that detects a change of the quantity of water in an oil-contain...  
WO/2018/025391A1
The present invention is a heat exchanger and a refrigeration cycle device provided with the heat exchanger. In the present invention, a first piping includes a crest part protruding in a diameter increasing direction in which the diamet...  
WO/2018/019777A1
The invention relates to a heat pump system, comprising the following features: a first heat pump arrangement (101), which is designed to operate with a first heat pump medium that includes CO2; a second heat pump arrangement (102), whic...  
WO/2018/020364A1
The present application provides an improved voltage loss protection circuit, which includes a voltage loss coil protection circuit and an energy storage protection circuit, and a starting cabinet with the improved voltage loss protectio...  
WO/2018/016902A1
The present invention relates to an air conditioning system for a vehicle and a method for controlling the same and, more specifically, to an air conditioning system for a vehicle and a method for controlling the same in which an opening...  
WO/2018/015398A1
The invention relates to a control apparatus for a refrigerator compressor having at least one two-phase AC asynchronous motor (K1, K2), having mains connection means (10) for connection to a preferably public voltage supply network whic...  
WO/2018/011994A1
Provided is an air conditioning device having a refrigerant circuit which is formed by connecting an outdoor unit and a plurality of indoor units by refrigerant piping and through which a refrigerant is circulated. The air conditioning d...  
WO/2018/011935A1
A refrigerating device is provided with: a heat source-side unit comprising a compressor, a condenser, and a liquid receiver; a load-side unit comprising an expansion valve and an evaporator; a refrigerant circuit in which the heat sourc...  
WO/2018/012489A1
A refrigeration system (1) has a plurality of utilizing units (3a, 3b, 3c) that are provided in one space to be air conditioned, a refrigerant leak sensor (6) that detects a refrigerant leak in the lower part of the space to be air condi...  

Matches 1 - 50 out of 14,068