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US20120174614 AIR CONDITIONER  
According to the present invention, an air condition comprises: a first compressor and a second compressor which compress a refrigerant through multiple stages; a condenser which condenses the...
US20120240602 REFRIGERANT WITH LUBRICATING OIL FOR REPLACEMENT OF R22 REFRIGERANT  
An apparatus and method wherein potential ozone layer-damaging chlorodifluoromethane (Refrigerant R-22) is substituted with a mix of less environmentally damaging refrigerants pentafluoroethane...
US20130086937 OIL CIRCULATION SYSTEM FOR A REFRIGERATION CHILLER  
An oil circulation system for a refrigeration chiller including a pump coupled to an atomizing spray nozzle located near the compressor suction inlet spraying a fine mist of oily liquid from the...
US20110016913 TURBO COMPRESSOR AND REFRIGERATOR  
A turbo compressor includes a case; a plurality of compression stages which is disposed rotatably with respect to the case via sliding parts; an oil tank in which lubricant oils to be supplied to...
US20150068230 COOLING DEVICES AND METHODS FOR USE WITH ELECTRIC SUBMERSIBLE PUMPS  
Cooling devices for use with electric submersible pump motors include a refrigerator attached to the end of the electric submersible pump motor with the evaporator heat exchanger accepting all or...
US20130091878 COOLING DEVICES AND METHODS FOR USE WITH ELECTRIC SUBMERSIBLE PUMPS  
Cooling devices for use with electric submersible pump motors include a refrigerator attached to the end of the electric submersible pump motor with the evaporator heat exchanger accepting all or...
US20130319037 MODULAR ARCHITECTURE FOR HELIUM COMPRESSORS  
A modular architecture for helium compressors is described.
US20140165631 Refrigeration Compositions, Refrigeration Systems and Methods of Making, Operating and Using the Same  
One variation may include a product including a mixture including CF3CF═CH2 and a lubricating oil or grease wherein the lubricating oil or grease that reduces eliminates the likelihood that the...
US20120055182 CO2 REFRIGERATION SYSTEM  
A CO2 refrigeration system comprises a refrigeration circuit in which circulates CO2 refrigerant between a compression stage in which the CO2 refrigerant is compressed. A condensation stage is...
US20120174615 AIR CONDITIONER  
According to the present invention, an air conditioner comprises: a first circulation channel which drives a thermodynamic cycle while normally circulating a refrigerant; a second circulation...
US20110138832 HYBRID SOLAR AIR-CONDITIONING SYSTEM  
The hybrid solar air-conditioning system includes an air intake having an air drying system that uses a liquid desiccant to dry ambient air, a desiccant regeneration system that uses a heat...
US20070000276 Themal compensation system and device there of in heat pump and refrigeration system  
An air conditioning and refrigeration system includes a compressor, a four-way valve, two delivering guide pipes joined to two lateral sides of the four-way valve, two thermal compensation devices...
US20120151958 USE OF TERNARY COMPOSITIONS  
The invention relates to the use of compositions essentially containing 2,3,3,3-tetrafluoropropene, HFC-134a and HFC-32 in compression refrigeration systems comprising exchangers operation in...
US20130061628 CHILLER  
According to the present invention, a chiller comprises: a compressor configured to compress a refrigerant; a condenser configured to condense the refrigerant compressed by the compressor; an...
US20110232306 ABSORPTION REFRIGERATION CYCLES USING A LGWP REFRIGERANT  
An absorptive refrigeration method and refrigerant/absorbant pairs comprising fluorinated organic compounds, such as fluorinated organic compounds having from one to eight carbon atoms (C1-C8),...
US20140360210 ROLLING ELEMENT BEARINGS FOR AN OIL-FREE LIQUID CHILLER  
A refrigeration chiller employs a centrifugal compressor the impellers of which are mounted on a shaft which is itself mounted for rotation using rolling element bearings lubricated only by the...
US20140090413 REFRIGERATION CYCLE DEVICE  
The present invention provides a capacity-control refrigeration cycle device capable of efficiently vary capacity, and in any of a full operation mode in which capacity of the refrigeration cycle...
US20140165626 USE OF R-1233 IN LIQUID CHILLERS  
This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with...
US20120006041 REFRIGERATING DEVICE  
A refrigerating device that forms a refrigerating cycle in which a plurality of outdoor machines 1a and 1b provided at least with compressors 2a and 2b, condensers 4a and 4b, and accumulators 5a...
US20070271951 An Improved Design of a Compressor/Expander of the Rotating Vane Type  
Improvements to a rotating-vane integral compressor/expander are outlined to significantly improve efficiency. A method to simply achieve variable-flow operation is also described.
US20110289959 AIR CONDITIONING SYSTEM HAVING AN IMPROVED INTERNAL HEAT EXCHANGER  
An air conditioning system having an improved internal heat exchanger (IHX) assembly. The IHX assembly includes an elongated cavity for low pressure refrigerant flow from an evaporator and an...
US20120117996 CASCADE REFRIGERATION SYSTEM WITH MODULAR AMMONIA CHILLER UNITS  
A cascade refrigeration system includes an upper portion having at least one modular chiller unit that provides cooling to at least one of a low temperature subsystem having a plurality of low...
US20150000330 AIR CONDITIONER  
A refrigerating apparatus including a refrigerant circuit forming a refrigeration cycle using an operating refrigerant selected from among R1234yf single refrigerant, R1234yf mixed refrigerant,...
US20130255286 Oil Compensation In A Refrigeration Circuit  
The invention relates to a refrigeration circuit with at least two compressors, each compressor comprising at least one lubrication point and at least one oil pump having an outlet for providing...
US20110016914 TURBO COMPRESSOR AND REFRIGERATOR  
A turbo compressor includes a case; compression stages which are disposed in a plural number in a rotatable manner with respect to the case via a sliding part; an oil tank in which a lubricant oil...
US20110219809 TURBO COMPRESSOR AND TURBO REFRIGERATOR  
A turbo compressor according to the present invention supports a rotational shaft fixed to an impeller by a bearing in a freely rotatable manner, and supplies the lubricant oil to a plurality of...
US20120304685 AIR CONDITIONER  
An air conditioner includes oil balancing pipes that extract lubricating oil stored in an oil separator and each of compressors in which a specified amount of the lubricating oil or more is...
US20130098101 COMPRESSOR AND REFRIGERATION CYCLE DEVICE USING SAME  
According to a compressor and a refrigeration cycle device using same of the present invention, a refrigerant and refrigeration oil 103 are sealed in an container 101, the refrigerant is a...
US20110120175 Refrigeration Circuit  
A refrigeration circuit provided with a scroll compressor for compressing a refrigerant, characterized in that R1234yf is used as the refrigerant and a polyol ester is used as a lubricating oil...
US20120055193 MOTOR-DRIVEN COMPRESSOR  
The motor-driven compressor includes a housing, a compression mechanism, a rotary shaft and an electric motor all disposed in the housing, and a resin film. The housing has a suction port and a...
US20100077786 OIL COOLED GENERATOR FOR TRAILER REFRIGERATION UNIT  
A transport refrigeration unit includes an integrally mounted unitary engine driven generator wherein the generator is cooled by the circulation of oil over the stator coils and the rotor to...
US20080236184 Injectible two-staged rotary compressor and heat pump system  
In an injectable two-staged rotary compressor, a second suction pipe includes a heat-exchange promoting unit that promotes heat exchange between intermediary-pressure injected refrigerant and...
US20100251756 REFRIGERANT VAPOR COMPRESSION SYSTEM WITH LUBRICANT COOLER  
A refrigerant vapor compression system is provided that includes a refrigerant circuit and a lubricant cooler circuit. The lubricant cooler circuit is operatively associated with the compression...
US20120079839 VACUUM PUMP OIL CHANGING METHOD AND APPARATUS  
Refrigerant processing equipment is provided. The refrigerant processing equipment may include: a vacuum pump; an outlet for draining vacuum pump lubricating oil from the vacuum pump; a fluid...
US20080271477 Compressor System with Controlled Lubricant Reclaim  
A compressor system with controlled lubricant reclaim includes a compressor circuit having a compressor, a condenser, and an evaporator connected by refrigerant flow line; a lubricant circuit for...
US20150192033 COOLING OF AN OIL CIRCUIT OF A TURBOMACHINE  
A turbomachine or a turbojet engine or a turboprop engine of an aircraft, including at least one oil circuit and a cooling mechanism including a refrigerant circuit including a first heat...
US20130283833 Refrigeration System And Method For Operating A Refrigeration System  
A refrigeration system (2) comprises a condenser/gas cooler (4), an intermediate expansion device (6) and a refrigerant collecting container (8); a normal refrigeration branch (10) connecting the...
US20100037637 OIL CIRCULATION OBSERVER FOR HVAC SYSTEMS  
An innovative oil observer for estimating oil concentration and oil amount in a refrigerant compressor in a vapor compression cycle is described. The invention ensures the safe operation of the...
US20100162748 HEAT GENERATOR  
A heat generator includes an air-conditioning refrigerating system formed of a compressor, a discharge line, a condenser, a condenser liquid line, a liquid distributor, a spoiler such as metering...
US20130098100 REFRIGERATION COMPRESSOR  
The refrigeration compressor according to the invention includes a sealed enclosure containing a compression stage and provided with a refrigerant inlet and outlet, the compressor being configured...
US20130133359 TURBO CHILLER  
In a turbo chiller, pipe joint groups (23 to 26) provided to refrigerant cooling pipe systems (13 to 16) and lubricant pipe systems connected to a turbo compressor (2) and a motor (3), as well as...
US20130014537 REFRIGERATOR  
The refrigerator includes: a cooling-water line having a cooling-water pump to thereby send water for cooling a refrigerant inside of a condenser; a lubricating-water supply line connecting the...
US20060196223 Accumulator with oil vanes/indentations  
An accumulator for an air conditioning system has a passage for oil to travel from an orifice to an outlet. To improve the percentage of oil flowing from the orifice to the outlet and/or the rate...
US20080173042 Vapor compression refrigeration circuit and automotive air-conditioning system using same  
A vapor compression refrigeration circuit comprises a compressor, a heat radiator, a high-temperature section of an internal heat exchanger, a pressure reducer, an evaporator, an accumulator and a...
US20120024007 COMPRESSOR FOR REFRIGERATION AND AIR-CONDITIONING AND REFRIGERATING AND AIR-CONDITIONING APPARATUS  
A refrigerating machine oil including a refrigerating machine oil basis such as polyol ester oil and an additive polyol ester oil is mixed to a refrigerant including 2,3,3,3-tetrafluoropropene,...
US20090084130 OIL-RETURNING DEVICE AND ACCUMULATOR  
The present invention provides an oil-returning device and a accumulator, the oil-returning device including an outlet pipe and a filtering component, the outlet pipe having an bent arc portion...
US20060213219 Distributed condensing units  
A system includes an evaporator unit, a first condensing unit and a second condensing unit. The first condensing unit includes a first heat exchanger coil, a first compressor, and a first oil...
US20080245082 Lubrication System for Touchdown Bearings of a Magnetic Bearing Compressor  
A vapor compression system includes a compressor, a condenser, an expansion device and an evaporator. Refrigerant circulates though the closed circuit vapor compression system. Touchdown bearings...
US20110314845 TADEM COMPRESSOR OPERATION  
A refrigerant system operates with tandem compressors. As is known, one or more of the tandem compressors can be shut down at part-load operating conditions when lower refrigerant system capacity...
US20130167580 COMPRESSOR AND REFRIGERATING CYCLE APPARATUS USING THE SAME  
In a compressor, a single refrigerant of hydrofluoroolefin having a double bond of carbon or a mixed refrigerant containing hydrofluoroolefin and hydrofluorocarbon having no double bond of carbon...

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