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WO/2017/057711A1 |
In the present invention, a control unit (8) is configured to control the degree of opening of an expansion mechanism (51) during a refrigeration-cycle operation, and performs expansion mechanism suitability determination as to whether t...
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WO/2017/056214A1 |
The purpose of the present invention is to provide an air conditioner which ensures safety against refrigerant leakage. This air-conditioner is provided with: a refrigerant circuit which internally circulates a refrigerant and which comp...
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WO/2017/056789A1 |
The purpose of the invention is to improve the safety of a refrigerating device comprising a plurality of utilization units. A refrigerating device (100) comprises: a refrigerant circuit (RC) that comprises a heat source unit (10) compri...
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WO/2017/057614A1 |
Provided is a refrigerator oil composition for a mixed refrigerant containing difluoromethane, the refrigerator oil composition containing polymer (A) below and an ester (B) of a polyvalent alcohol and an aliphatic monocarboxylic acid. P...
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WO/2017/056863A1 |
An electric compressor 11 is provided with: a compression section 111 that compresses a suctioned low-pressure refrigerant and discharges a high-pressure refrigerant; an electric motor 112 that drives the compression section 111 on the b...
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WO/2017/056856A1 |
[Problem] To suppress suction of a liquid refrigerant into a compressor of a refrigeration cycle where a chiller is possibly filled with the liquid refrigerant. [Solution] A vehicular temperature adjustment device (10) is provided with a...
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WO/2017/057004A1 |
This water heat exchanger accommodation unit comprises a cold/hot water supply unit (200) provided with: a water heat exchanger (201) through which a flammable refrigerant flows; a casing (231) in which the water heat exchanger (201) is ...
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WO/2017/051472A1 |
This cooling device is provided with: a refrigeration cycle circuit, in which a compressor, a first condenser, an expansion unit, and a first evaporator disposed below the first condenser are sequentially connected, and in which a refrig...
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WO/2017/051532A1 |
A cooling system that combines a plurality of refrigeration cycles has a fluctuating cooling capacity. Therefore, this cooling system has: a first cooling means comprising a first refrigerant transportation means that circulates a refrig...
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WO/2017/051525A1 |
[Problem] Provided are a cooling device and a flowrate control method whereby the amount of refrigerant flowing into an evaporator can be quickly optimized without increasing control load, in a cooling device using refrigerant phase chan...
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WO/2017/051533A1 |
A cooling system combining a plurality of refrigeration cycles requires complicated control in order to maximize the cooling capacity of the cooling system. Therefore, this cooling system has: a first cooling means that comprises a first...
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WO/2017/051728A1 |
This heat exchanger (1) is equipped with: a laminated body (2) which is configured by a plurality of tubes (21) being laminated; and a header tank (4). The header tank has: a plate header (42) to which the end of each of the plurality of...
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WO/2017/048830A1 |
An intermediate discharge port in a scroll compressor and a method for controlling part- load efficiency of a scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scr...
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WO/2017/047354A1 |
This multi-stage compression refrigeration cycle device is equipped with: a low-stage compression mechanism (12a); a high-stage compression mechanism (11a); a radiator (13) which dissipates the heat of the high-pressure refrigerant disch...
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WO/2017/046853A1 |
The present invention comprises the following: a water heat exchanger that heats water by heat exchange with a refrigerant; a use-side heat exchanger that heats air inside a room by heat exchange with a refrigerant; a condensation temper...
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WO/2017/047621A1 |
This refrigeration machine oil, which includes an oxygen group-containing oil and a viscosity index improver, has a viscosity index (VI) of at least 200, and a volume resistivity of at least 1×109 Ω∙m.
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WO/2017/043036A1 |
A coolant compressor that is provided with an electric element and with a compression element that is driven by the electric element and that compresses a coolant. The compression element comprises at least one sliding member that compri...
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WO/2017/043035A1 |
A coolant compressor that stores lubricating oil that has a viscosity of VG2-VG100 in a sealed container and that also houses an electric element and a compression element. The compression element is driven by the electric element and co...
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WO/2017/042645A1 |
An outdoor unit (1) for an air conditioner, provided with flat heat transfer tubes (21a, 21b) which effectively reduce ventilation resistance. A heat exchanger (2) of the outdoor unit (1) for an air conditioner is provided with the plura...
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WO/2017/043471A1 |
[Problem] To make it possible for a scroll fluid machine that is a single-plate compressor-integrated expander to start easily and reliably and operate stably. [Solution] Coolant compressed in a compressing unit of a scroll fluid machine...
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WO/2017/042859A1 |
A first detection value I1, which is the value of the compressor current at the point in time when a first time has elapsed since the start-up of the compressor, is acquired (step S6). A second detection value I2, which is the value of t...
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WO/2017/043336A1 |
An ejector (100) is provided with: a body (200) in which a pressure reducing space (222), a suction passage (231) and a pressure boosting space (232) are formed; and a valve member (240) that forms a nozzle passage (224) and a diffuser p...
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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/2017/038131A1 |
This two-stage pressure boosting type refrigeration cycle (10) has suction-side guide sections (101a, 101d) provided in a portion of a low stage-side suction pipe (101), said portion extending to a refrigerant suction side of a low stage...
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WO/2017/038232A1 |
This refrigerating machine is equipped with: a turbocompressor which compresses a refrigerant; a condenser which is equipped with one or more pipe groups (31) configured from a plurality of heat transfer pipes (30) through which cooling ...
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WO/2017/038446A1 |
The purpose of the present invention is to increase superheating of low pressure refrigerant by using heat from operating electric parts without impairing piping layout and maintenance by way of a simple and inexpensive configuration. Th...
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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/2017/038376A1 |
The purpose of the present invention is to install an intermediate cooler having a sufficient internal volume in a compact turbo refrigeration apparatus specifically using a low-pressure refrigerant, and reduce refrigerant pressure loss ...
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WO/2017/038161A1 |
The purpose of the present invention is to reduce the temperature of a refrigerant sucked in by a high-stage compressor and prevent the high-stage compressor from sucking in a liquid medium. This refrigeration cycle device has a compress...
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WO/2017/037788A1 |
Provided is a refrigeration cycle device with which, when collecting refrigerant in a refrigerant accumulation unit in the event of power outage, the residual amount of liquid refrigerant that remains in an inclined portion or a vertical...
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WO/2017/033724A1 |
An ejector is provided with a body (30) and a passage forming member (35). The body has formed therein: a pressure reducing space (30b); a suction passage (13b) through which a sucked-in refrigerant having been sucked in from a refrigera...
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WO/2017/032542A1 |
The invention relates to a refrigerant fluid circuit 1 intended to equip a motor vehicle for the air-conditioning of the vehicle interior, the refrigerant fluid circuit 1 comprising: - a compressor 2 comprising at least a first compressi...
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WO/2017/031616A1 |
A refrigerating unit comprises a compressor (10), a condenser (12), a liquid storage tank (14), an expansion mechanism (16), an evaporator (18), and a motor (22) driving the compressor (10). A working medium circulates among the compress...
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WO/2017/029819A1 |
This heat utilization apparatus is characterized by comprising: a heat pump (6) which has a first heat exchanger (3) and a second heat exchanger (4); a first heat storage unit (7) which stores the heat subjected to the heat exchange by t...
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WO/2017/031240A1 |
A closed loop system utilizing a solar refrigerant turbocharger and pump in conjunction with a solar collector to operate a heating and cooling system for a building by utilization of a renewable energy source. The liquid pump within 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/2017/026115A1 |
A compressor control unit (83) controls an operation frequency (FQ) of a compressor (21a) so that the temperature of a refrigerant suctioned into the compressor (21a) in a cooling operation becomes a desired evaporation temperature (Te)....
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WO/2017/026129A1 |
To provide an ammonia refrigeration device that is smaller and more efficient than a prior-art ammonia-condensing cooling cycle provided with a cooling tower and a cooling water pump. An ammonia refrigeration device (100) characterized i...
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WO/2017/026025A1 |
This multiple-type air conditioner (100) is provided with a first indoor unit (110A) and a second indoor unit (110B). In a case where the first indoor unit (110A) is stopped and the second indoor unit (110B) operates while a second indoo...
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WO/2017/027701A1 |
A system (20; 300) comprises: a vapor compression loop (38; 338); a low-pressure or medium-pressure refrigerant in the loop; a centrifugal compressor (42) along the vapor compression loop and comprising: a housing (120); an inlet (44); a...
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WO/2017/026011A1 |
This refrigeration cycle device is equipped with a refrigerant circuit and a control device. The refrigerant circuit has an internal heat exchanger, an injection pipe, and a second expansion valve. The internal heat exchanger performs he...
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WO/2017/026007A1 |
An output temperature Thw is obtained, the output temperature Thw being the temperature of a heating medium flowing out from a heating heat exchanger where heat is exchanged between a refrigerant compressed by a compressor and a liquid h...
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WO/2017/026369A1 |
This multiple-type air conditioner (100) is provided with a first indoor unit (110A) and a second indoor unit (110B). In a case where the first indoor unit (110A) is stopped and the second indoor unit (110B) operates while a second indoo...
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WO/2017/022060A1 |
Provided is a refrigeration cycle device, wherein a plurality of control boxes share a heat exhaust device to efficiently exhaust the heat in the control boxes, thereby reducing the installation space for the control boxes, and by securi...
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WO/2017/022421A1 |
This heat pump system includes: a compressor (13) which compresses and discharges refrigerant; a depressurization unit (17, 18) which depressurizes the refrigerant; an outdoor unit (16) which performs heat exchange between the refrigeran...
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WO/2017/024101A1 |
A vapor compression system comprises a compressor (22). The compressor comprises an inlet (40) and an outlet (42) and an electric motor (28). The motor has a stator (30) and a rotor (32). A plurality of bearings (36) support the rotor. A...
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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/2017/022282A1 |
Provided is a refrigerator system with which refrigerators can be operated efficiently. This refrigerator system has: an upstream refrigerator having a first compressor that compresses a refrigerant, a first condenser that condenses the ...
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WO/2017/022101A1 |
This chilling unit is equipped with: a refrigerant circuit that is configured by a compressor, a four-way valve, an air heat exchanger, a main expansion valve, and a water heat exchanger being sequentially connected by piping and circula...
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WO/2017/022626A1 |
A control device for a vehicle-mounted electric compressor (11) forming a two-stage compression refrigeration cycle device, said control device being equipped with: a speed reduction control unit (S23) that controls the AC current output...
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