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Matches 1 - 50 out of 44,883

Document Document Title
WO/2017/065309A1
The present invention prevents the oil level in a compressor from dropping when starting the compressor. This heat pump-type heating device (1) is provided with: a compressor (10); a heat source-side heat exchanger (11); a refrigerant ci...  
WO/2017/065134A1
Provided are: a refrigerator oil having excellent lubricating performance and excellent stability with respect to temperature change, specifically a refrigerator oil which contains a polyol ester wherein the value obtained by (molecular ...  
WO/2017/064755A1
An air conditioner, wherein: the target opening degree A of a main expansion device is determined by A=A'+ΔS1-ΔS2, where A' represents the opening degree of the main expansion device at the current time, ΔS1 represents the correction ...  
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...  
WO/2017/060986A1
Provided is a refrigeration cycle device with which liquid backflow when switching from a cooling mode to a heating mode can be suppressed. This refrigeration cycle device 1 is provided with a bypass circuit 8, 8A that is branched from b...  
WO/2017/061233A1
This refrigeration cycle device is provided with a compression mechanism (21), a heat radiator (23), a first pressure reducer (25), an evaporator (26), a second pressure reducer (27), an internal heat exchanger (24), a temperature detect...  
WO/2017/061167A1
The objective of the present invention is to cool an electric motor effectively at all times by means of an injection refrigerant, and to enlarge the operable range, while preventing liquid compression, in a high-stage side compression m...  
WO/2017/061009A1
This refrigeration cycle device (1) is provided with a refrigerant circuit (RC), a refrigerant tank circuit (12), and degassing piping (30). The refrigerant circuit (RC) is configured by connecting a compressor (2), a channel switching d...  
WO/2017/061211A1
Provided is an evaporator capable of, in a turbo-freezer using a low pressure refrigerant used at a maximum pressure of less than 0.2 MPaG, preventing dry-out of a group of heat transfer pipes in an evaporator to increase heat transfer p...  
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...  
WO/2017/057613A1
Provided is a refrigerator oil composition for a refrigerant comprising difluoromethane, the refrigerator oil composition containing polymer (A) below and an ester (B) of a polyvalent alcohol and an aliphatic monocarboxylic acid. Polymer...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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.  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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)....  
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...  
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...  

Matches 1 - 50 out of 44,883