Entries |
Document | Title | Date |
20080236189 | Air Conditioner - An air conditioner ( | 10-02-2008 |
20080236190 | Apparatus including freezing unit and projector including freezing unit - There is disclosed an apparatus including a freezing unit in which the freezing unit can be operated without any trouble even when a main body rotates. A liquid crystal display projector (an apparatus) including a freezing unit having a refrigerant circuit constituted of a compressor, a radiator, a capillary tube (a pressure reducing unit), an evaporator and the like includes a rotator as a posture adjustment unit for adjusting the main body to a basic posture to maintain at least a lubricating performance of the compressor in accordance with a posture change of the main body. The rotator rotates to adjust the basic posture of the whole freezing unit, and a rotary shaft of this rotator is arranged in parallel with an optical axis of a light source on the same plane. | 10-02-2008 |
20080271477 | 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 circulating lubricant to the compressor; a reclaim vaporizer adapted to heat a refrigerant-lubricant mixture from the evaporator whereby the mixture is heated and lubricant and refrigerant are separated to provide reclaimed lubricant to the lubricant circuit and reclaimed refrigerant to the compressor circuit; and a control unit adapted to control flow of the mixture from the evaporator to the reclaim vaporizer based upon temperature of the mixture from the evaporator and temperature of reclaimed lubricant leaving the reclaim evaporator. Methods are also provided. | 11-06-2008 |
20090071187 | Refrigerating Apparatus - A refrigerant circuit ( | 03-19-2009 |
20090100860 | Fluid Machine - In a compression/expansion unit ( | 04-23-2009 |
20090100861 | COMPRESSOR - A stator core of a motor has a plurality of oil return passages extending through one surface and the other surface of the core. On the other surface of the stator core, a hydraulic diameter of each oil return passage is 5 mm or larger, and a ratio of a total area of the oil return passages to an area of a virtual circle having a diameter equal to a maximum outer diameter of the stator core is 5 to 15%. Lubricating oil accumulated on the other surface side of the stator core is returned to an oil reservoir through the oil return passages, and shortage of oil in the oil reservoir is prevented. Furthermore, a cross sectional area of the stator core can be securely kept, and motor efficiency is maintained. | 04-23-2009 |
20090107169 | Air conditioner - An air conditioner includes at least one compressor, an outlet pipe, an inlet pipe, and at least one bypass pipe. Oil and/or refrigerant discharged from the at least one compressor flows through the outlet pipe. The inlet pipe receives the oil and/or refrigerant flown through the outlet pipe and allows the oil and/or refrigerant to flow to the at least one compressor. The at least one bypass pipe is connected to the at least one compressor and allow bypass flows of the oil and/or refrigerant from the at least one compressor to the outlet pipe. | 04-30-2009 |
20090107170 | Air conditioner - An air conditioner includes a plurality of compressors, a plurality of oil separators, a plurality of oil collection pipes, a common inlet pipe, and a plurality of branch inlet pipes. The oil separators are connected to outlets of the compressors for separating a refrigerant and/or oil discharged from the compressors. The oil collection pipes are respectively connected to the oil separators for collecting oil separated by the oil separators. The common inlet pipe receives the collected oil and allows the oil to flow to the compressors. The branch inlet pipes branch off from the common inlet pipe and are respectively connected to the compressors. | 04-30-2009 |
20090139262 | EXPANDER-COMPRESSOR UNIT - An the expander-compressor unit ( | 06-04-2009 |
20090193839 | TURBO COMPRESSOR AND REFRIGERATOR - A turbo compressor includes a motor, an impeller which is rotationally driven as the rotative power of the motor is transmitted to the impeller, a gear unit which transmits the rotative power of the motor to the impeller, and an oil tank to which lubricant supplied to the gear unit is at least recovered, wherein the oil tank is a portion of a closed space formed by at least one of a motor housing surrounding the motor and an impeller housing surrounding the impeller. | 08-06-2009 |
20090193840 | TURBO COMPRESSOR AND REFRIGERATOR - A turbo compressor includes a first impeller and a second impeller, which are spaced apart at a predetermined distance from each other in a direction of an axis and are fixed such that their backs face each other, in a rotation shaft which is rotatably supported around the axis. Two angular contact ball bearings are provided between the first impeller and the second impeller to rotatably support the rotation shaft around the axis. The two angular contact ball bearings are combined such that their fronts face each other. According to this turbo compressor, robustness can be improved against the inclination of the rotation shaft, any damage of the bearings can be prevented, and the lifespan thereof can be extended. | 08-06-2009 |
20090277212 | REFRIGERATOR OIL COMPOSITION, AND REFRIGERATOR COMPRESSOR AND REFRIGERATION SYSTEM USING THE COMPOSITION - The present invention provides a refrigerator oil composition comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one imide compound, said imide compound in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition, and also provides a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition and the compressor and the refrigeration apparatus using the refrigerator oil composition satisfy both sludge dispersibility and prevention of wear and seizing of a sliding part made of aluminum and/or iron. | 11-12-2009 |
20090320518 | REFRIGERANT EXCHANGE ARRANGEMENT - A refrigerant exchange arrangement is claimed with a first oil-trapping chamber ( | 12-31-2009 |
20100005829 | LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound which containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000 and one or more kinds of phosphorous compound selected from a phosphate having 25 or more carbon atoms, a phosphite having 10 to 60 carbon atoms, an amine salt of phosphate having 10 to 60 carbon atoms, and a metal salt of phosphate having to 60 carbon atoms. The lubricating oil for a compression type refrigerator of the present invention has high compatibility and high viscosity index, and is excellent in anti-seizure property and also in stability under carbon dioxide atmosphere. | 01-14-2010 |
20100005830 | LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, and a dehydrating agent. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and excellent in stability without degradation and alteration due to hydrolysis under carbon dioxide atmosphere. | 01-14-2010 |
20100037648 | LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, a metal deactivator, and at least one kind phosphorous compound selected from a phosphate and a phosphite. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in anti-seizure property and corrosion stability under carbon dioxide atmosphere. | 02-18-2010 |
20100101268 | REFRIGERATION SYSTEM - A refrigerant circuit ( | 04-29-2010 |
20100107680 | FLUID MACHINE AND REFRIGERATION CYCLE APPARATUS - An oil supply passage ( | 05-06-2010 |
20100132397 | LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, an epoxy compound having 8 or more carbon atoms The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in stability, and does not have an unpleasant odor under carbon dioxide atmosphere. | 06-03-2010 |
20100132398 | FLUID MACHINE AND REFRIGERATION CYCLE APPARATUS HAVING THE SAME - A fluid machine ( | 06-03-2010 |
20100139311 | LUBRICANT FOR COMPRESSION TYPE REFRIGERATING MACHINE AND REFRIGERATION SYSTEM USING THE SAME - A lubricating oil for a compression-type refrigerator using a hydrofluorocarbon refrigerant including a polyvinyl ether-based compound containing in the molecule an alkylene glycol unit or a polyoxyalkylene glycol unit and a polyvinyl ether unit and having a molecular weight in the range of 300 to 3,000, and a refrigeration apparatus using the lubricating oil. | 06-10-2010 |
20100147016 | LUBRICATING OIL COMPOSITION FOR REFRIGERATORS AND COMPRESSORS WITH THE COMPOSITION - A lubricating oil composition for refrigerators comprising a base oil which comprises as a main component a polyol ester compound obtained from a polyhydric alcohol selected from among pentaerythritol, dipentaerythritol, trimethylolpropane, and neopentyl glycol and a C | 06-17-2010 |
20100162748 | 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 device, an evaporator and a suction line, and a liquid delivering system. The discharge line has a head heat segment disposed in contact with a contact segment of the delivery segment for heat exchange to charge liquid passing through the delivery pipe into hot water or steam. | 07-01-2010 |
20100170291 | HERMETIC COMPRESSOR AND REFRIGERATION SYSTEM - In a hermetic compressor, aggression to an organic material is low by using a refrigeration oil using, as a base oil, an alicyclic multivalent carboxylic acid ester compound and made of an alicyclic multivalent carboxylic acid ester compound having at least two ester groups, the at least two ester groups being bound to carbon atoms adjacent to each other on an alicyclic ring. The ratio of hydrocarbon radicals in which carbon number is 4 or less among hydrocarbon radicals bound to the at least two ester groups is 15% by weight or less. | 07-08-2010 |
20100175421 | LUBRICANT COMPOSITION FOR REFRIGERATOR AND COMPRESSOR USING THE SAME - Provided is a lubricant composition for a refrigerator, which is characterized by using a substance mainly containing a polyoxyalkylene glycol derivative and having a hydroxyl number of 5 mgKOH/g or less, as a base oil. Also provided is a compressor using such the lubricant composition for a refrigerator. The lubricant composition for a refrigerator is used for a refrigerator which uses a refrigerant having a specific structure such as an unsaturated fluorohydrocarbon and being usable in current air-conditioning systems for cars or the like. The lubricant composition for a refrigerator exhibits excellent compatibility with the refrigerant, while having excellent stability. The compressor uses such the lubricant composition for a refrigerator. | 07-15-2010 |
20100180628 | EXPANDER-INTEGRATED COMPRESSOR AND REFRIGERATION-CYCLE APPARATUS WITH THE SAME - An expander-integrated compressor ( | 07-22-2010 |
20100236282 | REFRIGERANT COMPRESSOR - A refrigerant compressor includes a hermetic container storing refrigerant oil an electrically-driven element and a compressing element driven by the electrically-driven element. The compressing element includes a cylinder block having a cylindrical compression chamber and a cylindrical piston reciprocating in the compression chamber. The compression chamber and the piston have a diameter difference in the range of not shorter than 4 μm to not longer than 15 μm. The refrigerant oil has viscosity of 8 mm | 09-23-2010 |
20100251757 | REFRIGERATION CYCLE APPARATUS AND FLUID MACHINE USED FOR THE SAME - A refrigeration cycle apparatus | 10-07-2010 |
20100263404 | EXPANDER-COMPRESSOR UNIT - An expander-compressor unit ( | 10-21-2010 |
20100281912 | LUBRICANT COMPOSITION FOR REFRIGERATING MACHINE AND COMPRESSOR USING THE SAME - A lubricating oil composition for refrigerator including a base oil and an acid scavenger, and a compressor using the composition are provided, where the acid scavenger is a polyalkylene glycol derivative represented by a formula (1) as follows: | 11-11-2010 |
20100287977 | OIL PUMP FOR A REFRIGERATION COMPRESSOR - An oil pump is applied to a compressor which comprises a shell ( | 11-18-2010 |
20100326124 | EXPANDER-INTEGRATED COMPRESSOR AND REFRIGERATION CYCLE APPARATUS USING THE SAME - An expander-integrated compressor ( | 12-30-2010 |
20110000253 | LUBRICANT COMPOSITION FOR REFRIGERATING MACHINE - A lubricating oil composition for refrigerator is provided by adding base oil with biphenols selected from 4,4′-methylenebis(2,6-di-t-butyl-phenol), 2′2-methylenebis(4-methyl-6-t-butylphenol), 2,2′-methylenebis(4-ethyl-6-t-butylphenol) and 4,4′-butylidenebis(3-methyl-6-t-butylphenol). | 01-06-2011 |
20110005266 | Reciprocating Piston Compressor - In order to improve a reciprocating piston compressor for a refrigerant circuit, comprising a crankcase, in which a collecting chamber for lubricant is arranged, a cylinder housing, in which at least one reciprocating piston is movable in an oscillating manner, a valve plate which closes the cylinder housing and in which at least one inlet valve and one outlet valve are arranged, and a cylinder head, in which a suction gas duct which runs to the inlet valve and a compressed gas duct which leads away from the outlet valve are provided, in such a manner that excessive accumulations of lubricant can be avoided, it is suggested that a lubricant suction conduit be provided which has an inlet opening associated with the collecting chamber and an outlet opening associated with the suction gas duct and that the outlet opening be located in an area of the suction gas duct, in which a static pressure, which is lower than a static pressure in the collecting chamber for lubricant, prevails at least temporarily. | 01-13-2011 |
20110011123 | REFRIGERATION APPARATUS - In a refrigeration apparatus including a refrigerant circuit in which refrigerant represented by Molecular Formula 1: C | 01-20-2011 |
20110011124 | REFRIGERATION APPARATUS - A refrigeration apparatus ( | 01-20-2011 |
20110016913 | 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 the sliding parts are stored; an oil cooler for cooling the lubricant oils; a primary piping for communicating the oil tank with the oil cooler; and a secondary piping for communicating the oil cooler with the sliding parts, wherein an accommodation space in which the oil cooler is accommodated is formed in the case, and the primary piping and the secondary piping are disposed within the case. | 01-27-2011 |
20110016914 | 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 to be supplied to the sliding part is stored; a pressure equalization pipe which communicates the oil tank with the vicinity of the inlet of the compression stage; and a check valve which allows only the movement of the fluid from the oil tank side to the compression stage side in the pressure equalization pipe. | 01-27-2011 |
20110120174 | COMPRESSOR - The present invention relates to a rotary compressor comprising an electric motor part for supplying electric power and a compression mechanism part for compressing a refrigerant while first and second rotary members ( | 05-26-2011 |
20110120175 | 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 for the refrigeration circuit. In this refrigeration circuit, an undesirable reaction product can be prevented from accumulating. The refrigeration circuit hence is reduced in environmental burden and has the same operating stability as in conventional ones. | 05-26-2011 |
20110126579 | COMPRESSOR - The present invention relates to a rotary compressor comprising an electric motor part ( | 06-02-2011 |
20110132026 | Fluid circuit and refrigeration cycle apparatus using the same - Disclosed herein is a fluid circuit in which a compressible fluid and an incompressible fluid flow in a mixed state including an upstream side space and a downstream side space in which internal pressures repeatedly alternate between high pressure and low pressure, and a pump unit having an inlet connected to the upstream side space and an outlet connected to the downstream side space. The pump unit has two check valves arranged in series in a direction in which fluid movement is allowed from the upstream side space to the downstream side space, and a middle part, having a predetermined capacity, formed between the check valves. | 06-09-2011 |
20110219809 | 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 sliding portions that are slid due to the rotation of the rotational shaft. Furthermore, the turbo compressor includes a oil supply nozzle in which a first injection hole, which injects the lubricant oil toward a predetermined first fueling place among a plurality of sliding portions to be supplied with the lubricant oil, and a second injection hole, which injects the lubricant oil toward a second fueling place different from the first fueling place, are provided. According to the present invention, it is possible to provide a turbo compressor capable of reducing the labor and the costs of manufacturing and a turbo refrigerator including the same. | 09-15-2011 |
20110252825 | REFRIGERATING-MACHINE OIL COMPOSITION, AND COMPRESSOR FOR REFRIGERATING MACHINE AND REFRIGERATING APPARATUS EACH EMPLOYING THE SAME - The present invention provides a refrigerator oil composition which satisfies both sludge dispersibility and prevention of wear and seizing of sliding parts made of aluminum and/or iron, and a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition is characterized by comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one polyamide compound having two or more amide groups in the molecule and being present in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition. | 10-20-2011 |
20110289959 | 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 interior tube disposed within the cavity for high pressure refrigerant flow from a condenser, and a pressure equalization passage between the low and high pressure sides. The passage is large enough to allow pressures to equalize between the condenser and evaporator while the air conditioning system is inactive, so as to prevent the pressure differential that would otherwise enable the loss of refrigerant oil from the compressor, and small enough not to effect the operation of the air conditioning system. The pressure equalization passage may be a by-pass valve assembly having a reed portion that is normally open when the air conditioning system is inactive and closed when the air conditioning system is active for maximum cooling efficiency. | 12-01-2011 |
20110302954 | ROTARY-TYPE FLUID MACHINE AND REFRIGERATION CYCLE APPARATUS - A rotary-type fluid machine ( | 12-15-2011 |
20110308272 | REFRIGERATING AIR-CONDITIONING APPARATUS - A refrigerating air-conditioning apparatus, at least provided with no possibility that a foreign material returns to a compressor from an accumulator at a time of the pipeline-cleaning operation firstly, and provided with a possibility to perform a collecting operation for the foreign material in a short time secondary, is provided. | 12-22-2011 |
20120024007 | 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, 1,3,3,3-tetrafluoropropene or the like. A compressor for refrigeration and air-conditioning including the mixture charged therein is used. The composition of the additive polyol ester oil is 1 to 30 wt %. | 02-02-2012 |
20120055193 | 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 discharge port. The compression mechanism is adapted to compress refrigerant drawn into the housing through the suction port and to discharge the compressed refrigerant out of the housing through the discharge port. The electric motor is adapted to rotate the rotary shaft to drive the compression mechanism. The electric motor has a rotor fixed on the rotary shaft and a stator supported by the housing. The rotor has a rotor body, a permanent magnet and an end plate. The rotor body has a magnet hole in which the permanent magnet is inserted. The end plate closes an opening of the magnet hole. The resin film coats an outer surface of the rotor. | 03-08-2012 |
20120131947 | REFRIGERATION CYCLE APPARATUS - An object of the present invention is to provide a refrigeration cycle apparatus having a compressor that is not easily heated to high temperature by sliding heat and thus higher in reliability. | 05-31-2012 |
20120137723 | AIR CONDITIONER - The present invention relates to an air conditioner, more particularly, it returns the oil from the shell and tube type of evaporator or directs the returned oil from the oil separator of the compressor into the compressor to reuse. And, it comprises an oil recovery flow path passing a condenser so that the oil and the refrigerant mixed with the oil is superheated or supercooled by using the heat discharged from heat-exchange units of the fin and tube type of condenser. Therefore, it is possible to improve the heat exchange performance of the evaporator. | 06-07-2012 |
20120151958 | 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 counterflow mode. | 06-21-2012 |
20120151959 | BINARY REFRIGERATING FLUID - The invention relates to binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. The invention also relates to a heat transfer method. | 06-21-2012 |
20120159982 | TERNARY COMPOSITIONS FOR LOW-CAPACITY REFRIGERATION - The invention relates to compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. The invention specifically relates to compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134a and between 5 and 10 wt. % of HFC-32. | 06-28-2012 |
20120167615 | HEAT TRANSFER METHOD - The invention relates to a heat transfer method using ternary compositions containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, said compositions being especially interesting as a heat transfer fluid in compression refrigeration systems comprising exchangers operation in counterflow mode or in split flow mode with counterflow tendency. | 07-05-2012 |
20120174614 | 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 refrigerant compressed by the second compressor; a first flow channel through which a portion of the refrigerant condensed by the condenser passes, in order to be cooled; a supercooling heat exchanger having a second flow channel for exchanging heat with the first flow channel; an expansion instrument which expands the refrigerant cooled by the supercooling heat exchanger; a shell-tube-type evaporator which evaporates the refrigerant expanded by the expansion instrument, and which is connected to a location requiring cold water via a water pipe to supply cold water to said location requiring cold water; a first bypass channel which guides the refrigerant condensed in the condenser to the second flow channel; a supercooling expander installed in the first bypass channel; and a second bypass channel which interconnects the first and second compressors and the second flow channel, thereby decreasing discharge superheat, and thus increasing the degree of subcooling, and improving the efficiency of supplying cold water. | 07-12-2012 |
20120174615 | 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 channel which is branched from an outlet of a condenser of the first circulation channel to recover oil from the refrigerant to a compressor and to cause the refrigerant to pass through a supercooling heat exchanger; and a third circulation channel which is directly branched from an evaporator of the first circulation channel, to recover oil from the refrigerant and send the same to the compressor, and to cause the refrigerant to pass through the supercooling heat exchanger, thereby preventing the wet compression of the compressor to achieve improved reliability of the compressor, and preventing the degradation of heat-exchange performance. | 07-12-2012 |
20120304685 | 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 stored, a distributor that distributes the lubricating oil led from the oil separator and the compressors to a plurality of channels, and oil return pipes that communicatively connect the distribution channels of the distributor and a refrigerant inlet pipe of each of the compressors to return the lubricating oil to each of the compressors. | 12-06-2012 |
20130014537 | REFRIGERATORAANM Fujisawa; RyoAACI Kobe-shiAACO JPAAGP Fujisawa; Ryo Kobe-shi JPAANM Toshima; MasatakeAACI Kobe-shiAACO JPAAGP Toshima; Masatake Kobe-shi JPAANM Kanemura; ToshikatsuAACI Takasago-shiAACO JPAAGP Kanemura; Toshikatsu Takasago-shi JPAANM Nakayama; YashihiroAACI Takasago-shiAACO JPAAGP Nakayama; Yashihiro Takasago-shi JPAANM Iizuka; KoichiroAACI Takasago-shiAACO JPAAGP Iizuka; Koichiro Takasago-shi JPAANM Ide; SatoshiAACI Takasago-shiAACO JPAAGP Ide; Satoshi Takasago-shi JPAANM Suto; KunihikoAACI Chiyoda-kuAACO JPAAGP Suto; Kunihiko Chiyoda-ku JPAANM Kurashige; KazutakaAACI Chiyoda-kuAACO JPAAGP Kurashige; Kazutaka Chiyoda-ku JPAANM Sakuraba; IchirouAACI Nagoya-shiAACO JPAAGP Sakuraba; Ichirou Nagoya-shi JPAANM Hayashi; DaisukeAACI Nagoya-shiAACO JPAAGP Hayashi; Daisuke Nagoya-shi JPAANM Sugano; KeijiAACI Amagasaki-shiAACO JPAAGP Sugano; Keiji Amagasaki-shi JPAANM Shato; ShinjiAACI Amagasaki-shiAACO JPAAGP Shato; Shinji Amagasaki-shi JPAANM Madsboll; HansAACI TaastrupAACO DKAAGP Madsboll; Hans Taastrup DKAANM Kristensen; Klaus DamgaardAACI HojbjergAACO DKAAGP Kristensen; Klaus Damgaard Hojbjerg DK - 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 part downstream from the cooling-water pump on the cooling-water line and a compressor | 01-17-2013 |
20130031929 | Reciprocating Refrigeration Compressor Oil Separation - A compressor ( | 02-07-2013 |
20130061628 | 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 expander configured to expand the refrigerant condensed by the condenser; and an evaporator in which the refrigerant expanded by the expander cools cold water. The evaporator comprises: a shell comprising a space therein through which the refrigerant passes; an inner tube through which cold water passes and disposed such that the cold water exchanges heat with the refrigerant; and an oil overflow member disposed in the shell and defining an oil passage between the oil overflow member and the shell such that the oil overflow into the oil passage and then flows toward a lower inner portion of the shell along the oil passage. Since the maximum height of oil in the shell can be controlled, a gaseous refrigerant can be quickly absorbed into the compressor to prevent deterioration in performance stemming from an excessive height of an oil foaming layer. | 03-14-2013 |
20130086937 | 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 evaporator to be aspirated by the compressor. | 04-11-2013 |
20130098100 | 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 such that under usage conditions, a flow of refrigerant circulates through the refrigerant inlet, the compression stage, and the refrigerant outlet. The compressor has an oil pan and oil recirculation means arranged to orient the oil contained in the oil pan into the flow of refrigerant when the oil in the oil pan exceeds a predetermined oil level. The recirculation means include a recirculation line housed in the sealed enclosure and including an inlet port situated at a height substantially corresponding to the predetermined oil level, an outlet port emerging in the refrigerant flow, and an intermediate part connecting the inlet and outlet ports. The intermediate part includes a first portion extending below the predetermined oil level. | 04-25-2013 |
20130098101 | 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 | 04-25-2013 |
20130167580 | 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 is used, and moreover a refrigerating machine oil containing an additive for suppressing deterioration of the refrigerating machine oil and an antiwear agent is used, the compressor including a sliding portion which is exposed to the mixed refrigerant and the refrigerating machine oil and which has a hardness of 47-55 HRC. Thus, decomposition and polymerization of the refrigerant and the refrigerating machine oil can be inhibited (i.e., occurrence of sludge can be inhibited), and antiwear property of sliding portions, e.g. vane and piston, of the compressor can be maintained. As a result, reliability of the compressor and the refrigerating cycle apparatus using the compressor can be ensured. | 07-04-2013 |
20130298594 | THERMODYNAMIC SYSTEM PROVIDED WITH A PLURALITY OF COMPRESSORS - The thermodynamic system includes a circuit for circulating a refrigerant including a compression device including a first and a second compressors each including a sealed enclosure including a low-pressure portion containing a motor and an oil pan positioned at the bottom of the enclosure, and a refrigerant intake opening leading into the low-pressure portion, a refrigerant dispensing device arranged to connect an evaporator to the intake opening of the first compressor, an oil level equalization conduit putting the oil pans of the first and second compressors in communication, a connecting device putting the low-pressure portion of the first compressor in communication with the intake opening of the second compressor, and control means arranged to control the starting and stopping of the first and second compressors according to four control modes. | 11-14-2013 |
20130319037 | MODULAR ARCHITECTURE FOR HELIUM COMPRESSORS - A modular architecture for helium compressors is described. | 12-05-2013 |
20140090413 | 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 device is not controlled and an operation mode in which the capacity is controlled, all of refrigerants are discharged into a hermetic container | 04-03-2014 |
20140216102 | COMPRESSOR COOLING SYSTEM - A system may include a compressor, a heat exchanger, an expansion device, and first and second working fluid flow paths. The compressor may include a compression mechanism and a motor. The heat exchanger may receive compressed working fluid from the compressor. The expansion device may be disposed downstream of the heat exchanger. The first working fluid flow path may fluidly connect the heat exchanger and the expansion device. The second working fluid flow path may be disposed downstream of the heat exchanger and may fluidly connect the heat exchanger with the compressor. The second working fluid flow path may provide compressed working fluid to the compression mechanism and to the motor. | 08-07-2014 |
20140326017 | TERNARY COMPOSITIONS FOR LOW-CAPACITY REFRIGERATION - Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134 | 11-06-2014 |
20150338142 | COMPRESSOR LOW COST OIL FILTER - An internal oil filter is installed at least partially inside a crankcase and/or an oil sump of a compressor. The internal oil filter can receive oil from an oil pressure regulator and filter the oil via filter media. The received oil radially penetrates through the filter media and flow directly into the oil sump from an outside surface of the filter media. This can eliminate the need of fluid lines connecting an outlet of an oil filter to the oil sump and any sealing mechanism therebetween. | 11-26-2015 |
20160160856 | BACKUP LUBRICANT SUPPLY SYSTEM - A lubricant supply system includes a tank defining an internal volume. A divider is positioned within the tank that separates the internal volume into a first portion and a second portion. A first pump is in fluid communication with the first portion of the internal volume and configured to introduce a liquid refrigerant into the first portion of the internal volume. | 06-09-2016 |