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Matches 1 - 50 out of 3,265

Document Document Title
WO/2018/137125A1
A high-efficiency energy-saving air-energy dual-machine heat pump air conditioning system. An outlet of a first compressor (11), via ports d1 and b1 of a first two-position four-way valve (21) and a first check valve (31), and an outlet ...  
WO/2018/132730A1
A refrigeration system includes first and second compressors and an oil separator. The oil separator includes an inlet for receiving refrigerant and oil from the first compressor, a refrigerant outlet, and an oil outlet. The oil separato...  
WO/2018/125171A1
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/2018/126208A1
Aspects described herein relate generally to rotary compressors that incorporate a flywheel within to significantly reduce the compressor vibration and drive torque ripples as well as to achieve a higher overall electro-mechanical effici...  
WO/2018/116407A1
This refrigeration cycle device (1) comprises a compressor group (3), a four-way valve (5), a first heat exchanger (7), an expansion valve (9), a second heat exchanger (11), an accumulator (13), and an oil storage (15). The oil storage (...  
WO/2018/091939A1
A lubricant separator includes a shell, a vapor inlet located at a first end of the shell to admit a flow of refrigerant and lubricant into the lubricant separator and a muffler positioned in the shell. The muffler includes a first perfo...  
WO/2018/089569A1
A rotary drive for a cryocooler and related cryocooler are disclosed. The rotary drive generates a gas pressure wave for the cryocooler. The rotary drive may include a crankcase, a crankshaft within the crankcase, and a cylinder position...  
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/2018/076734A1
Provided is an air-conditioning system (100), comprising: a compressor (1), in which a variable frequency motor (11) is arranged; a condenser (2) comprising a first refrigerant flow passage and a first water flow passage; an evaporator c...  
WO/2018/070630A1
[Problem] Power consumption of a heat pump system is reduced by promoting homogeneous mixing of a refrigerant and a refrigerating machine oil. [Solution] An apparatus: includes a fluid-guide unit, which is assembled by concentrically com...  
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/2018/063965A1
Disclosed is a refrigerant liquid-gas separator (114) thermally coupled to electronics (119) to transfer heat away from the electronics, and assist in vaporizing the liquid refrigerant. The liquid-gas separator device (114) includes a re...  
WO/2018/052694A1
A refrigeration system and a lubricating method thereof. The refrigeration system (100) includes: a compressor (110), a condenser (120), an evaporator (130), and a lubrication circuit (200), the lubrication circuit including a post-lubri...  
WO/2018/041403A1
The invention relates to a compressor (10), particularly a refrigerant compressor, comprising a compressor housing (14) and at least one piston (12) arranged in a cylinder in a reciprocal manner and driven by an electric motor (16), said...  
WO/2018/044218A1
A gas compressor, comprising a compressor chamber comprising a chamber inlet for gas and a chamber outlet for gas A gas heating device comprising a heater chamber having a heater inlet for gas and a heater outlet for gas. The gas heating...  
WO/2018/043797A1
The present invention relates to a compressor and a chiller system including the compressor, the compressor comprising: one or more impellers for suctioning a refrigerant in an axial direction and compressing the same in a centrifugal di...  
WO/2018/038918A1
A vapor compression system (20, 400, 420, 440, 460, 480) has: a compressor (22) having a suction port (40) and a discharge port (42); a heat rejection heat exchanger (58) coupled to the discharge port to receive compressed refrigerant; a...  
WO/2018/038926A1
A vapor compression system (20; 400; 420) comprises: a compressor (22) having a suction port (40) and a discharge port (42); a heat rejection heat exchanger (58) coupled to the discharge port to receive compressed refrigerant; a heat abs...  
WO/2018/035265A1
The present disclosure relates to an oil flow switch, comprising a float device connected to a circulating oil passage and a floating liquid level switch element provided in the float device, wherein the float device comprises an oil inl...  
WO/2017/222138A1
The present invention relates to a fluid cooling apparatus for improving the efficiency of a fluid liquefaction process by appropriately lowering, various sections of the temperature range of a fluid through a simple process. The fluid c...  
WO/2017/220702A1
A method for controlling a valve arrangement (10) interconnecting at least one oil separator (8) and an oil receiver (9) in a vapour compression system (1) is disclosed. A pressure difference between a pressure prevailing inside the oil ...  
WO/2017/215493A1
Disclosed is a refrigerating unit (100), comprising an oil-free centrifugal compressor (1), an evaporator (2) and a condenser (3). The oil-free centrifugal compressor (1) comprises a motor (11), a bearing (12) and an impeller (13). The b...  
WO/2017/206239A1
A heat pump module (100) for a clothes processing device, and the clothes processing device. The heat pump module (100) for a clothes processing device comprises a base plate (1), a top cover (2), and a compressor (5). A mounting chamber...  
WO/2017/207526A1
The invention relates to a cooling system (1) comprising, connected in a loop by fluid lines and in succession, a compressor (2), a condenser (3), an expansion valve (4) and an evaporator (5), further comprising an internal heat exchange...  
WO/2017/186259A1
In order to improve a method for selecting a frequency converter for a coolant compressor unit, comprising a coolant compressor and an electric drive motor, in such a way that the frequency converter is selected in an application-optimis...  
WO/2017/185713A1
Provided are an outdoor unit (100) for a multi-online unit system, and a multi-online unit, the outdoor unit (100) comprising: a main air-return duct (7); a plurality of compressors, the air-return port (6) of each of the compressors bei...  
WO/2017/175014A1
New device to protect a compressor against liquid flooding, oil heater malfunction, low refrigerant charge, high superheat. The system consists of a device that measures two temperatures separated by a heat source (The electric compresso...  
WO/2017/175014A4
New device to protect a compressor against liquid flooding, oil heater malfunction, low refrigerant charge, high superheat. The system consists of a device that measures two temperatures separated by a heat source (The electric compresso...  
WO/2017/164586A1
An aspect of the present invention provides a cooling device used for a compressor and, more particularly, to a cooling device for a compressor, comprising: a fan device; a housing on which the fan device is installed; a plurality of hea...  
WO/2017/156104A1
A transport refrigeration unit (10) is provided and includes a refrigeration cycle having a refrigerant routed there through, the refrigeration cycle including a compressor (20), a condenser (22), an evaporator (26) and an expansion valv...  
WO/2017/148932A1
A heat pump comprises a condenser having a condenser housing; a compressor motor which is attached to the condenser housing and has a rotor (307) and a stator (308), wherein the rotor has a motor shaft (306) to which is attached a radial...  
WO/2017/148934A1
A heat pump comprises a condenser (114) with a condenser housing; a compressor motor which is mounted on the condenser housing (114) and which has a rotor and a stator (308), wherein the rotor has a motor shaft (306) on which a compresso...  
WO/2017/127241A1
A method of operating a multiple-compressor refrigeration system is provided. This method includes the steps of supplying, via a common supply line, refrigerant gas and oil to a plurality of compressors coupled in series, and attaching a...  
WO/2017/126539A1
In a configuration provided with a plurality of multistage compressors connected in parallel and an injection circuit for feeding a refrigerant gas of an intermediate pressure into the individual housings of the multistage compressors, t...  
WO/2017/123602A1
A centrifugal compressor (22) for a chiller (10) includes a casing (30), an inlet guide vane (32), an impeller (34) downstream of the inlet guide vane (32), a motor (38) and a diffuser (36). The casing (30) has inlet and outlet portions ...  
WO/2017/123598A1
A centrifugal compressor (22) for a chiller (10) includes a casing (30), an inlet guide vane (32), an impeller (34) downstream of the inlet guide vane (32), a motor (38) and a diffuser (36). The casing (30) has inlet and outlet portions ...  
WO/2017/123042A1
An embodiment of the present invention relates to a deep freezer. A deep freezer according to an embodiment of the present invention comprises a plurality of heat exchangers installed to an inlet pipe and performing a heat exchange of a ...  
WO/2017/120539A1
A refrigeration system comprises a heat source to be cooled and a heat sink into which heat can be rejected, the system having a capacity of from about 2 to about 30 tons and comprising a heat transfer composition comprising a refrigeran...  
WO/2017/110011A1
A hermetic compressor is provided with a flexible oil fence (162) having an affixation section (166) which is one end of the oil fence (162) and which is affixed to the upper surface (156) of a cylinder (122) located between a shaft (136...  
WO/2017/102122A1
Refrigeration system bypass valve (19) which, in defined operating conditions, allows gaseous refrigerant compressed by a compressor of a refrigeration system to bypass the compressor and thus be recirculated from a high-pressure side of...  
WO/2017/104929A1
The present disclosure relates to a refrigerator, an operation method of a refrigerator, and a computer-readable recording medium. A refrigerator according to an embodiment of the present disclosure may comprise: a compressor including a...  
WO/2017/097014A1
Provided are a compressor and a heat exchange system. The compressor comprises a compression component (1) and a housing (2). The housing (2) at least partly surrounds the compression component (1). A gas-liquid separation chamber is for...  
WO/2017/099814A1
Heat is recovered from a heat source to heat water to high temperatures. Apparatuses, systems and methods are described to heat water to a high temperature by using heat, such as may be considered in some instances as waste heat, recover...  
WO/2017/100314A1
A refrigeration system includes a plurality of compressors connected in series. Each compressor has an oil sump located in a gravitational bottom of the compressor. A common supply line supplies refrigerant and oil to each of the plurali...  
WO/2017/076588A1
The invention relates to a domestic refrigeration appliance (1) and to a method for operating a domestic refrigeration appliance (1). The domestic refrigeration appliance (1) comprises a heat-insulated basic structure (10) with a coolabl...  
WO/2017/075584A1
Exemplary embodiments include tanks for cooling liquid where at least two thermoelectric chips come into contact with and cool a plurality of conductive fins that each extend into the interior of the tank where they come into contact wit...  
WO/2017/066575A1
A vapor compression system (20) comprises: a compressor (24) having a suction port (26) and a discharge port (28); a refrigerant flowpath (33) from the discharge port and returning to the suction port; a first heat exchanger (30) along t...  
WO/2017/059021A1
A method of controlling the temperature in cavities of a refrigerator (10) cooled by a refrigeration circuit having a compressor (18) and an evaporator (32) includes the steps of: monitoring the duty cycle of the compressor (18); determi...  
WO/2017/053596A1
A system and method of controlling an oil flow within a refrigeration system, the system including a compressor, an expansion device in flow communication with the compressor, and an electronic controller in communication with the expans...  
WO/2017/050551A1
The present invention relates to a refrigerating device (100) having a refrigeration circuit with a high-pressure region comprising a compressor (103, 133) for compressing a refrigerant, with a refrigerant transfer point, a liquefier for...  

Matches 1 - 50 out of 3,265