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Match Document Document Title
US20110113819 Refrigeration Cycle  
Provided is a refrigeration cycle wherein a compressor, a condenser, a depressurizing/expanding means and an evaporator are provided. The refrigeration cycle uses R1234 as a refrigerant, and has...
US20110120154 PASSIVE OIL LEVEL LIMITER  
A vapor expansion/compression system having an oil sump for lubrication of the turbine/compressor bearings includes an oil and/or vapor vent line leading from a strategic location in the oil sump...
US20140223954 CRYOGENIC REFRIGERATOR SYSTEM AND OIL SEPARATOR  
Provided is an oil separator in which a filter member is arranged between inner and outer punching plates and that includes a filter element configured so that a refrigerant gas that has flowed in...
US20110036116 Structural improvement for electric energy saving equipment  
An electric energy saving equipment comprising a coolant compressor, a heat pump, a four way valve, a heating/cooling heat exchanger, an expansion valve, four check valves, an indoor unit of split...
US20090272137 Oil Return, Superheat and Insulation Design  
A heating/cooling system design enabling one to maintain a superheat level of more than 1 degree F. and up to 10 degrees F., incorporating a specially designed accumulator, optional special oil...
US20140331699 REFRIGERATION CYCLE DEVICE, EQUIPMENT, AND REFRIGERATION CYCLE METHOD  
A refrigeration cycle device includes: a compressor that constitutes a refrigeration cycle and compresses a supplied refrigerant; a refrigerant-retaining container that retains the refrigerant...
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...
US20120291464 AIR CONDITIONER  
Disclosed is an air conditioner in which a plurality of compressors retains a constant oil level. The air conditioner includes a plurality of compressors configured to compress a refrigerant, a...
US20110061407 BACKGROUND TANK FILL BASED ON REFRIGERANT COMPOSITION  
A portable recovery unit for automatically filling a background tank of blended refrigerant includes a main tank for holding recovered refrigerant from a vehicle A/C system which has a first...
US20150219372 Heat-Pump System  
Provided is a heat-pump system including a plurality of compressors, wherein the plurality of compressors includes a first compressor and a second compressor that compress refrigerant, an oil...
US20130091891 CASCADE REFRIGERATION SYSTEM WITH MODULAR AMMONIA CHILLER UNITS  
A cascade refrigeration system including 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...
US20110072845 REFRIGERANT INJECTION DEVICE FOR REFRIGERANT DESTRUCTION FACILITY  
Featured is a refrigerant injection device which is particularly suitable for use in a refrigerant destruction facility using an incinerator. Such an injection device includes a storage device...
US20100326125 REFRIGERATION SYSTEM  
In a refrigeration system in which a compressor mechanism including a plurality of compressors, oil separators (37a, 37b) are provided at a discharge pipe (56a) of a first compressor (14a) and a...
US20090095442 Advanced DX System Design Improvements  
A direct exchange geothermal heating/cooling system has a self-adjusting expansion valve and a bypass flow path to improve efficiency when the system operates in a heating mode. The expansion...
US20110174005 REFRIGERATING APPARATUS  
A refrigerating apparatus having a plurality of compressors includes an injection circuit (40) which includes a first injection pipe (37) branched from a first refrigerant pipe (32) of a...
US20140165646 Oil Compensation In A Refrigeration Circuit  
An oil separation device (14) for separating oil from a refrigerant-oil-mixture in a refrigeration cycle (1), the oil separation device (14) comprises a first refrigerant conduit having at least a...
US20070251264 HERMETIC VESSEL EQUIPPED WITH INSERTED-TYPE DISCHARGE PIPE, AND OIL SEPARATOR, GAS-LIQUID SEPARATOR, AND AIR CONDITIONING SYSTEM USING THE SAME  
A hermetic vessel capable of preventing noise caused by fluid flow, and an oil separator, a gas-liquid separator, and an air conditioning system using the same. The hermetic vessel having a vessel...
US20130186128 CHILLER  
A chiller according to the present invention comprises: a compressor for compressing a refrigerant; an oil separator for separating oil and the refrigerant discharged from the compressor; a...
US20090120120 DX System with Filtered Suction Line, Low Superheat, and Oil Provisions  
A heating/cooling system has improved operating efficiencies due to low superheat provisions and a specially configured compressor oil return. For certain systems, such as direct exchange...
US20140238069 AIR CONDITIONER OUTDOOR UNIT AND AIR CONDITIONER  
An air conditioner outdoor unit includes: a compressor; a heat source-side heat exchanger connected to the compressor; an oil separator disposed between a refrigerant discharge opening of the...
US20110100588 DX System Interior Heat Exchanger Defrost Design for Heat to Cool Mode  
A DX heating/cooling system includes an automatic hot gas by-pass valve (1) for preventing frosting of an interior heat exchanger/air handler (6) when the system is switched from the heating mode...
US20110011105 OIL SEPARATOR  
An oil separator for use in separating oil from refrigerant gas in a chiller system is provided. Its operation is based on centrifugal separation principles and does not require the use any type...
US20120234037 OIL SEPARATOR AND REFRIGERATING CYCLE APPARATUS USING THE SAME  
An oil separator capable of preventing breakage in a float with an extremely simple configuration is provided. An oil separator is to separate oil in a refrigerant that is discharged from a...
US20140174112 Refrigerant Vaporizer  
A vaporizer has: an inlet (72); an oil outlet (90; 94); a vent (120); a hot gas inlet (132); and a cooled gas outlet (134). A gas flowpath (130) extends from the hot gas inlet to the cooled gas...
US20140326008 AIR CONDITIONER  
The present invention relates to an air conditioner in which oils mixed in the refrigerant compressed by a plurality of compressors are separated together and recovered in an efficient manner. An...
US20110094247 A/C Maintenance System Using Heat Transfer from the Condenser to the Oil Separator for Improved Efficiency  
An apparatus and methodology are provided for advantageously increasing heat transfer between the evaporator/oil separator (“accumulator”) and condenser of a refrigerant recovery/recycling system,...
US20080298981 VARIABLE CAPACITY SWASH PLATE TYPE COMPRESSOR  
Provided is a variable capacity swash plate type compressor. The variable capacity swash plate type compressor includes: a cylinder block; a front housing; a rear housing; a valve; a driving...
US20140026609 OIL SEPARATOR AND REFRIGERATION CYCLE APPARATUS  
The oil separator 11 separates oil in the refrigerant discharged from the compressor 4 and returns the oil back to the compressor 4. And includes a tank 21 into which refrigerant discharged from...
US20110185765 HEAT PUMP APPARATUS  
A heat pump apparatus that is capable of suppressing an increase in the installation area therefor and volume thereof is provided. A heat pump apparatus includes a compressor that compresses...
US20150052936 SEALED COMPRESSOR AND VAPOR COMPRESSION REFRIGERATION CYCLE APPARATUS INCLUDING THE SEALED COMPRESSOR  
A sealed compressor includes a centrifugal impeller above a rotor to synchronously rotate. A refrigerant rises through a rotor air hole, flows in an upper space, and flows out from a discharge...
US20120038120 SYSTEM AND METHOD FOR CRYOGENIC COOLING  
In accordance with an embodiment of the invention, there is provided a system for cooling a load. The system comprises a closed loop primary refrigeration system comprising: a primary compressor...
US20110120176 VARIABLE DISPLACEMENT COMPRESSOR SHAFT OIL SEPARATOR  
A compressor shaft may have a fluid inlet that leads into and may be concentric with a fluid inlet tube, which may be perpendicular to a longitudinal hole in the length of the shaft. An...
US20140331712 AIR-CONDITIONING APPARATUS  
An air-conditioning apparatus capable of storing a surplus of refrigerating machine oil and returning a necessary amount of the refrigerating machine oil to a compressor as required. In an...
US20100218513 THERMALLY ACTIVATED HIGH EFFICIENCY HEAT PUMP  
A vapor compression cycle system is combined with a Rankine cycle system, with the two systems having a common suction accumulator from which the compressor draws refrigerant vapor for the vapor...
US20100077792 ELECTROSTATIC LUBRICANT AND METHODS OF USE  
An integrated thermodynamic system for enhancing the energy efficiency and operating lifetime by reducing wear of moving parts is provided. The system provides automated means to attract or repel...
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...
US20110000227 COMPRESSOR  
To improve the exhaust heat recovery efficiency, a compressor includes a heat exchanger for cooling a gas, coolant, water, or oil heated by the compressor during compressor operation by heat...
US20060196221 Multiple outlet vertical oil separator  
An oil separator for separating oil from a refrigerant gas and oil mixture on the high side of a refrigeration/chiller system comprising, a housing having an upper chamber with an inlet for the...
US20150052915 COOLING SYSTEM AND A METHOD FOR SEPARATION OF OIL  
The invention relates to a cooling system (2) and a method for oil separation, where a condenser unit (10) contains an oil separator (18,20), from which oil separator oil is lead through a...
US20060196220 Vertical oil separator  
A vertical oil separator for separating oil from a refrigerant gas and oil mixture on the high side of a refrigeration/chiller system comprising, a vertical housing having an upper chamber with a...
US20130255308 CHILLER OR HEAT PUMP WITH A FALLING FILM EVAPORATOR AND HORIZONTAL OIL SEPARATOR  
A refrigerant circuit using a vapor compression cycle, the circuit usable for air conditioning, refrigeration or heat pump purposes. The circuit includes a lubricated compressor connected to an...
US20100269538 OIL SEPARATOR AND COMPRESSOR FOR REGENERATIVE REFRIGERATOR  
An oil separator, includes a first cylindrical-shaped punching plate having a plurality of first piercing holes; a second cylindrical-shaped punching plate having a plurality of second piercing...
US20120297818 COMPRESSOR AND REFRIGERATION DEVICE  
A compressor includes a casing configured to store lubricating oil in a bottom part, and a compression mechanism accommodated in an interior of the casing. Lubricating oil is separated out from...
US20140238070 Refrigeration Method and Installation  
An installation for refrigerating a same application by means of a single refrigerator/liquefier or several refrigerators/liquefiers arranged in parallel, the refrigerator(s)/liquefier(s) using a...
US20100147018 Refrigeration apparatus  
In the case where one compressor that is operated by being connected in parallel is a compressor in which the discharged oil amount is small, and the other compressor is a compressor in which the...
US20100005831 ENHANCED REFRIGERANT SYSTEM  
A refrigerant system providing enhanced performance over a wider range of operating conditions than traditional economized refrigerant systems. The system includes an economizer branch that...
US20080314063 Combined Muffler and Oil Separator for Refrigerant System  
A refrigerant system (20) is provided with an enlarged chamber (32) that provides the functions of both an oil separator and a muffler. The chamber includes an oil return line (34) that returns...
US20090188270 Ultra-low temperature freezer, refrigeration system and vacuum apparatus  
In an ultra-low temperature freezer (R) using refrigerant mixture in which plural kinds of refrigerants having different boiling points are mixed, in order to ensure the flow rate of liquid...
US20090229301 REFRIGERATION SYSTEM  
A refrigeration system (1) includes first to third compressors (11a, 11b, 11c) connected in parallel and an oil separator for separating a refrigeration oil from a refrigerant discharged from the...
US20070214827 Oil-free refrigerant circulation technology for air-conditioning and refrigeration system  
An oil-free refrigerant circulation technology for air-conditioning and refrigeration system comprises 99.99% oil-vapor free refrigeration oil, 100% ultra micron oil-aerosol separator built-in...

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