| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 062510000 | Plural compressors or multiple effect compression | 56 |
| 20080245097 | TWO STAGE RECIPROCATING COMPRESSOR AND REFRIGERATOR HAVING THE SAME - A two stage reciprocating compressor includes a casing. A first compressing unit is disposed in the casing and includes a first piston and a first cylinder, the first compressing unit being driven by a reciprocating motor to linearly reciprocate the first piston in the first cylinder to suck in and compress gas. A second compressing unit is disposed in the casing and includes a second piston and a second cylinder, the second compressing unit being driven by vibration of the first compressing unit to linearly reciprocate the second piston in the second cylinder to suck in and compress gas. A vibration transfer member transfers the vibration from the first compressing unit to the second compressing unit. The first and second compressing units extend in parallel and face toward each other. | 10-09-2008 |
| 20080256975 | Vapor Compression System With Condensate Intercooling Between Compression Stages - A refrigerant vapor compression system includes a first compression device and a second compression device disposed in a refrigerant circuit in series relationship with respect to refrigerant flow and an intercooler adapted to cool the refrigerant passing from the first compression device to the second compression. An evaporator is provided in the refrigerant circuit wherein the refrigerant accepts heat from a moisture bearing gas such as air. Condensate formed of moisture condensing out of the gas is collected and supplied to the intercooler for cooling the refrigerant flowing from the first compression device to the second compression device. | 10-23-2008 |
| 20090013714 | Refrigeration System - A compressor ( | 01-15-2009 |
| 20090044564 | Refrigerating Apparatus - A refrigerant circuit ( | 02-19-2009 |
| 20090107173 | AIR CONDITIONER - Disclosed is an air conditioner which includes a plurality of compressors, a common inlet pipe through which fluid flows to the compressors, a plurality of inlet pipes branching off from the common inlet pipe which are connected to the compressors, a plurality of outlet pipes connected to the compressors through which refrigerant discharged from the compressors passes, and a plurality of bypass pipes connected to the compressors through which fluid discharged from the compressors passes. The fluid which passes through the plurality of bypass pipes is distributed to the plurality of compressors through the common inlet pipe. | 04-30-2009 |
| 20090126399 | Refigeration system - In a refrigeration system having a refrigerant circuit ( | 05-21-2009 |
| 20090193845 | TURBO COMPRESSOR AND REFRIGERATOR - A turbo compressor includes an impeller which is rotationally driven, and a flow path in which the impeller is provided, and through which gas flows, the turbo compressor sucking and compressing the gas in the flow path. The turbo compressor further includes a fluid discharge device which discharges a liquid in the flow path on the upstream side of the impeller. | 08-06-2009 |
| 20090205361 | COAXIAL ECONOMIZER ASSEMBLY AND METHOD - A coaxial economizer for use in a chiller system comprising an inner housing and an outer housing having a common longitudinal axis. The outer housing has an inlet for receiving a fluid from a upstream compressor stage of a multistage compressor and an outlet for conveying a fluid to a downstream compressor stage of a multistage compressor. A flow chamber forms a fluid flow path about the inner housing. A flash chamber is coterminous with the flow chamber and flashes fluid in a liquid state to a gas state. A flow passage between said flash chamber and the flow chamber for conveying a flashed gas from the flash chamber to the flow chamber; wherein the flashed gas conveyed from the flash chamber and the fluid received from the inlet of the outer housing mix along the fluid flow path toward the outlet of the outer housing. | 08-20-2009 |
| 20090205362 | CENTRIFUGAL COMPRESSOR ASSEMBLY AND METHOD - A centrifugal compressor assembly for compressing refrigerant in a 250-ton capacity or larger chiller system comprising a motor, preferably a compact, high energy density motor or permanent magnet motor, for driving a shaft at a range of sustained operating speeds under the control of a variable speed drive. Another embodiment of the centrifugal compressor assembly comprises a mixed flow impeller and a vaneless diffuser sized such that a final stage compressor operates with an optimal specific speed range for targeted combinations of head and capacity, while a non-final stage compressor operates above the optimum specific speed of the final stage compressor. Another embodiment of the centrifugal compressor assembly comprises an integrated inlet flow conditioning assembly comprising a flow conditioning nose, a plurality of inlet guide vanes and a flow conditioning body that positions inlet guide vanes to condition flow of refrigerant into an impeller to achieve a target approximately constant angle swirl distribution with minimal guide vane turning. | 08-20-2009 |
| 20100011806 | Motor, compressor and air conditioning system having the same - The present invention provides a motor, comprising: a stator including a coil wiring portion to which power is supplied; a rotor, which includes conductive bars, flux barriers, and permanent magnets, and rotates through an interactive electromagnetic force between the conductive bars, flux barriers, and permanent magnets and the coil wiring portion of the stator; an integrated capacitor, which is electrically connected to the coil wiring portion and includes two capacitors connected to each other in parallel, an electrical switch serially connected to one of the two capacitors, and a casing on which the two capacitors and the electrical switch are securely mounted. | 01-21-2010 |
| 20100011807 | Capacity modulation compressor and air conditioning system having the same - Provided is a capacity modulation compressor, comprising: a shell forming a sealed interior space; a compression mechanism, which is positioned inside the shell and modulates a capacity for compressing a working fluid; and an electromotive driving unit, which is positioned inside the shell, includes a stator and a rotor, and drives the compression mechanism; and a shaft for transferring a torque of the electromotive unit to the compression mechanism, the rotor including a rotor core, conductive bars, flux barriers, and permanent magnets, starting running by an induction torque produced due to the presence of the conductive bars, and operating at a synchronous speed by a reluctance torque produced due to the presence of the flux barriers and a magnetic torque produced to the permanent magnets, and the compressing capacity for the compression mechanism to compress the working fluid being set lower than a maximum compression capacity. | 01-21-2010 |
| 20100024470 | REFRIGERANT INJECTION ABOVE CRITICAL POINT IN A TRANSCRITICAL REFRIGERANT SYSTEM - A refrigerant system operates in a transcritical regime. An economizer circuit is incorporated into the refrigerant system, and includes an economizer injection line for refrigerant injection above the critical point. In one of the disclosed embodiments, the refrigerant utilized is CO | 02-04-2010 |
| 20100095704 | Injection System and Method for Refrigeration System Compressor - A refrigeration system can incorporate a cooling-liquid injection system that can inject a cooling liquid into an intermediate-pressure location of the compressor. The cooling liquid can absorb the heat of compression during the compression of the refrigerant flowing therethrough. The refrigeration system can include an economizer system that injects a refrigerant vapor into an intermediate-pressure location of the compressor in conjunction with the injection of the cooling liquid. A refrigeration system can include a liquid-refrigerant injection system that can inject liquid refrigerant into an intermediate-pressure location of the compressor. The injected liquid refrigerant can reduce the discharge temperature of the refrigerant. The liquid-refrigerant injection system can be used with the cooling-liquid injection system and/or the economizer system. | 04-22-2010 |
| 20100107683 | DUAL-CIRCUIT CHILLER WITH TWO-PASS HEAT EXCHANGER IN A SERIES COUNTERFLOW ARRANGEMENT - A dual refrigeration circuit, watercooled chiller has its respective evaporators and condensers interconnected by waterboxes, with each waterbox having an inlet flow and outlet flow connection, and with three passages interconnected with the respective evaporators/condensers of the first and second circuit, and with each of the condensers/evaporators having return bends at their ends to provide a two-pass flow arrangement. The flow in the condenser waterbox passes into a first passage and then in one direction to the condenser of one circuit while the flow into the evaporator waterbox passes into a first passage and then in the opposite direction to one of the circuit evaporators. In this manner, a series counterflow arrangement with two water passes is achieved. | 05-06-2010 |
| 20100132402 | Apparatus and System for Refrigerant Compressor with Liquid-Suction Heat Exchanger - There is provided a refrigeration apparatus ( | 06-03-2010 |
| 20100170295 | REFRIGERATION CYCLE DEVICE - In order to provide a refrigeration cycle device that is compact and efficiently utilizing an expansion machine and reduced in manufacturing cost through the use of a first compressor and second compressor driven by an expansion machine, a heat radiator and an on-off valve are disposed between the first and the second compressors and the second heat radiator is utilized irrespective of the operating mode such as the cooling or heating operation. Also, the heat transfer area ratio, which is a ratio of the heat transfer area of the second heat source side heat exchanger relative to the total heat transfer area of the heat transfer areas of said first and second heat source side heat exchangers, is set, according to the air speed distribution, within a range at which the COP is at its peak. Thus, the second heat source side heat exchanger can be utilized even during the heating operation, providing a high efficiency refrigeration cycle device. | 07-08-2010 |
| 20100186442 | AIR CONDITIONING SYSTEM FOR COMMUNICATION EQUIPMENT - An air conditioner for communication equipment is provided. The air conditioner includes an indoor module disposed at an indoor space of a base station having communication equipment and including an indoor heat exchanger and an indoor ventilator disposed closely to the indoor heat exchanger, an outdoor module disposed at an outside of the base station and including an outdoor ventilator, a brine cooling cycle including the indoor heat exchanger on a brine pipe, a brine pump, first and second outdoor brine heat exchanger, and first and second brine coolers, which are connected in a brine circulating direction, and a refrigerant cooling cycle including first and second expansion valves on a refrigerant pipe, the first and second brine coolers on the brine pipe, first and second compressors, first and second outdoor refrigerant heat exchangers, which are connected in a refrigerant circulating direction. | 07-29-2010 |
| 20100199715 | REFRIGERANT SYSTEM WITH BYPASS LINE AND DEDICATED ECONOMIZED FLOW COMPRESSION CHAMBER - A refrigerant system has an economizer cycle. A vapor refrigerant from the economizer loop is returned to a dedicated economizer compression chamber. A main refrigerant is returned to a dedicated main compressor chamber. A bypass line communicates the two refrigerant flows. | 08-12-2010 |
| 20100257894 | REFRIGERATION APPARATUS - A refrigeration apparatus uses a refrigerant that operates in a region including critical processes, and includes a compression mechanism having first and second compressors, a heat-source-side heat exchanger, an expansion mechanism, a utilization-side heat exchanger, an intercooler, and an intermediate refrigerant pipe. The first compressor has a first low-pressure compression element and a first high-pressure compression element to increase pressure of refrigerant more than the first low-pressure compression element. The second compressor has a second low-pressure compression element and a second high-pressure compression element to increase pressure of refrigerant more than the second low-pressure compression element. The intermediate refrigerant pipe causes refrigerant discharged by the first and second low-pressure compression elements to pass through the intercooler and be sucked into first and second high-pressure the compression elements. The intake sides of the first and second low-pressure compression elements are connected. The discharge sides of the first and second high-pressure compression elements merge. | 10-14-2010 |
| 20100263405 | Cryogenic Refrigeration Method And Device - The invention relates to a cryogenic refrigeration device intended to transfer heat from a cold source to a hot source via a working fluid flowing through a closed working circuit including the following portions in series, namely: a portion for the substantially isothermal compression of the fluid, a portion for the substantially isobaric cooling of the fluid, a portion for the substantially isothermal expansion of the fluid, and a portion for the substantially isobaric heating of the fluid. The compression portion of the working circuit includes at least two compressors disposed in series and the expansion portion of the working circuit includes at least one expansion turbine, said compressors and expansion turbine(s) being driven by at least one high-speed motor including an output shaft. One end of the output shaft supports and rotates, by means of direct coupling, a first compressor, while the other end of the output shaft supports and rotates, by means of direct coupling, a second compressor or an expansion turbine. | 10-21-2010 |
| 20100319394 | COMPRESSOR AND REFRIGERATION APPARATUS - A compressor includes a compression mechanism having lower and upper stage compression chambers. Refrigerant compressed in the lower-stage compression chamber is further compressed in the higher-stage compression chamber. An intermediate injection pipe is arranged to inject refrigerant between the lower-stage and the higher-stage compression chambers. The compression mechanism includes at least one fixed member having a fixed end plate, and at least one movable member having a movable end plate section facing the fixed end plate with at least one of the compression chambers interposed between the end plate sections. At least one intermediate back pressure chamber is formed to face a back surface of the movable end plate section. The intermediate back pressure chamber communicates with a discharge side of the lower-stage compression chamber, and is arranged such that internal pressure of the intermediate back pressure chamber acts on the movable end plate section. | 12-23-2010 |
| 20100326130 | ECONOMIZER - An economizer ( | 12-30-2010 |
| 20110005269 | REFRIGERATION APPARATUS - A refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, a usage-side heat exchanger and an intercooler. The compression mechanism has compression elements arranged so that refrigerant discharged from a first-stage compression element is sequentially compressed by a second-stage compression element. The intercooler is connected to an intermediate refrigerant tube arranged and configured to draw refrigerant discharged from the first-stage compression element into the second-stage compression element. The intercooler is arranged and configured to cool the refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element. The intercooler and the intermediate refrigerant tube and are arranged and configured to perform wet prevention control when a heat source temperature of the intercooler or an outlet refrigerant temperature of the intercooler is equal to or less than a saturation temperature of the refrigerant fed from the first-stage compression element to the second-stage compression element. | 01-13-2011 |
| 20110005270 | REFRIGERATION APPARATUS - A refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, a usage-side heat exchanger, a switching mechanism and an intermediate heat exchanger. Refrigerant discharged from a first-stage compression element is sequentially compressed by a second-stage compression element. Each of the heat source-side heat exchanger and the usage-side heat exchanger functions an evaporator or radiator. The switching mechanism is configured to switch between a cooling operation state and a heating operation state. The intermediate heat exchanger is configured to cool refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element when the switching mechanism has been set to the cooling operation state, and to evaporate refrigerant whose heat is radiated in the usage-side heat exchanger when the switching mechanism has been set to the heating operation state. | 01-13-2011 |
| 20110041547 | REFRIGERATION CIRCUIT - Provided is a refrigeration circuit including a compressor such as a compressor having a built-in motor, a condenser, a pressure reduction and expansion means, and an evaporator. The refrigeration circuit uses R1234yf as a refrigerant and provides therein a radical-capturing agent or a polymerization inhibitor. When the R1234yf as a new refrigerant is used and there is a possibility that radicals are formed, it is possible to prevent or suppress generation of radicals and prevent polymerization of R1234yf so that a target performance can be realized even when the new refrigerant is used. | 02-24-2011 |
| 20110094259 | MULTI-STAGE REFRIGERANT SYSTEM WITH DIFFERENT COMPRESSOR TYPES - Multi-stage refrigerant systems operate with a lower stage compressor of a first type and a higher stage compressor of a second type. In one embodiment, the lower stage compressor type is selected to have the most beneficial characteristics at lower pressure operation, while the higher pressure stage compressor type is selected to have the most beneficial characteristics at higher pressure operation. | 04-28-2011 |
| 20110113822 | Refrigerating Circuit - The invention relates to a refrigerating circuit ( | 05-19-2011 |
| 20110120179 | HEAT PUMP TYPE COOLING/HEATING APPARATUS - A heat pump type cooling/heating apparatus comprises a coolant injection path and a gaseous coolant adjustment valve. The coolant injection path may be split between a cascade heat exchanger and an evaporator of a low-temperature refrigeration cycle to inject coolant into a low pressure side compressor, or between a water coolant heat exchanger and cascade heat exchanger to inject coolant into a high pressure side compressor of a high temperature refrigeration cycle. The gaseous coolant adjustment valve may be provided in the coolant injection path and is adjusted to correspond to a load of a | 05-26-2011 |
| 20110120180 | HEAT PUMP - A heat pump controls heating and/or cooling using a refrigeration cycle unit and a booster module, The refrigeration cycle unit includes a compressor to compress a coolant, a first heat exchanger to condense the coolant compressed in the compressor, an expansion mechanism to expand the coolant condensed in the first heat exchanger, and a second heat exchanger to evaporate the coolant expanded in the expansion mechanism. The booster module separates a gaseous coolant from the coolant flowing from the first heat exchanger to the expansion mechanism and then allows for compression of the separated gaseous coolant or coolant evaporated in the second heat exchanger. | 05-26-2011 |
| 20110174014 | LIQUID VAPOR SEPARATION IN TRANSCRITICAL REFRIGERANT CYCLE - A refrigerant vapor compression system includes a flash tank disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger. The flash tank has a shell defining an interior volume having an upper chamber, a lower chamber and a middle chamber. A first fluid passage establishes fluid communication between the middle chamber and the upper chamber and a second fluid passage establishing fluid communication between the middle chamber and the lower chamber. An inlet port opens to the middle chamber. A first outlet port opens to the upper chamber and a second outlet port opens to the lower chamber. | 07-21-2011 |
| 20110179822 | REFRIGERATING APPARATUS - A refrigerating apparatus in which a two-stage compression refrigeration cycle is performed includes a refrigerant circuit and a volume ratio changing unit. The refrigerant circuit is connected to a compressor having a plurality of compression mechanisms mechanically connected together with a single drive shaft. The compression mechanisms include four cylinder chambers. The volume ratio changing unit is configured to change a ratio of a suction volume of a low-pressure compression mechanism to a suction volume of a high-pressure compression mechanism. | 07-28-2011 |
| 20110232325 | REFRIGERATING APPARATUS - In a refrigerant circuit ( | 09-29-2011 |
| 20110247358 | REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus | 10-13-2011 |
| 20120017636 | REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus ( | 01-26-2012 |
| 20120111050 | AIR CONDITIONER - An air conditioner may be provided that includes a plurality of compressors compressing a refrigerant, a first heat exchanger for condensing the refrigerant compressed in the compressors, a first expansion valve for expanding the condensed refrigerant, a second expansion valve for expanding the refrigerant emerging from the first expansion valve, and a second heat exchanger for evaporating the refrigerant emerging from the second expansion valve. The refrigerant from the first expansion valve may be guided such that a portion of the refrigerant is introduced into one of the compressors after bypassing the second expansion valve and the second heat exchanger, and a remaining portion of the refrigerant may be introduced into another one of the compressors after passing through the second expansion valve and second heat exchanger. | 05-10-2012 |
| 20120186295 | AIR CONDITIONER - An air conditioner includes a plurality of compressors, a condenser that condenses a refrigerant compressed in the plurality of the compressors, an expansion device that expands the refrigerant discharged from the condenser, and an evaporator that evaporates the refrigerant expanded in the expansion device. A first path diverges between the condenser and the evaporator to supply a portion of the refrigerant discharged from the condenser to at least one of the plurality of compressors. A second path diverges between the condenser and the evaporator to supply a portion of the refrigerant discharged from the condenser to a path between the plurality of compressors. | 07-26-2012 |
| 20120204596 | HEAT PUMP - A heat pump capable of operating in a high COP state even if influx temperature of a medium to be heated flowing into the radiators has increased. The heat pump includes a compressor, a first radiator, a second radiator, an expansion valve, and an evaporator sequentially connected by refrigerant piping to form a first refrigeration cycle, in which a first refrigerant circulates in the first refrigeration cycle, and in which the first radiator and the second radiator are serially connected. A first heat exchange unit that heats the first refrigerant is provided in a refrigerant piping at a refrigerant inlet side of the second radiator, and a second heat exchange unit that cools the first refrigerant is provided in a refrigerant piping at a refrigerant outlet side of the second radiator. | 08-16-2012 |
| 20130031934 | REFRIGERANT VAPOR COMPRESSION SYSTEM WITH INTERCOOLER - A refrigerant vapor compression system includes a compression device having at least a first compression stage and a second compression stage, a refrigerant heat rejection heat exchanger disposed downstream with respect to refrigerant flow of the second compression stage, and a refrigerant intercooler disposed intermediate the first compression stage and the second compression stage. The refrigerant intercooler is disposed downstream of the refrigerant heat rejection heat exchanger with respect to the flow of a secondary fluid. A second refrigerant heat rejection heat exchanger may be disposed downstream with respect to refrigerant flow of the aforesaid refrigerant heat rejection heat exchanger, and a second refrigerant intercooler may be disposed intermediate the first compression stage and the second compression stage and downstream with respect to refrigerant flow of the aforesaid refrigerant intercooler. | 02-07-2013 |
| 20130055754 | AIR CONDITIONER - Provided is an air conditioner. The air conditioner including a compressor for compressing a refrigerant, a condenser for condensing the refrigerant compressed by the compressor, a phase separator for separating a gaseous refrigerant from the refrigerant passing through the condenser, and an evaporator for evaporating the refrigerant passing through the phase separator includes an inflow part provided in the phase separator to introduce the refrigerant into the phase separator, a gas separation part configured to discharge the gaseous refrigerant separated by the phase separator, an injection passage configured to inject the refrigerant discharged from the phase separator into the compressor, and an internal heat-exchanger provided within the phase separator to heat-exchange a refrigerant therein with the refrigerant introduced through the inflow part. | 03-07-2013 |
| 20130098102 | HEAT PUMP SYSTEM - A heat pump system includes a heat pump circuit, a load distribution element, and a controller. The heat pump circuit includes low-stage and high-stage compression mechanisms having a fixed capacity ratio relationship. The load distribution element establishes a load distribution between first and second heat loads subjected to heating processes by heat exchange with refrigerant discharged from the low-stage and high-stage compression mechanisms, respectively. The controller performs distribution control to maintain a ratio of 1 between temperatures of the refrigerant discharged from the low-stage and high stage compression mechanisms and after heat exchange with the first and second heat loads, respectively. Alternatively, the controller performs distribution control to reduce a difference between the temperatures of the refrigerant discharged from the low-stage and high stage compression mechanisms and after heat exchange with the first and second heat loads, respectively. | 04-25-2013 |
| 20130104594 | AIR CONDITIONER | 05-02-2013 |
| 20130192294 | APPARATUS AND METHOD FOR CONTROLLING COMPRESSOR, AND REFRIGERATOR HAVING THE SAME - A compressor control apparatus and method, and a refrigerator including the same, are provided. In a refrigerator having two compressors, starting of two compressors may be staggered to reduce an effect of the suction pressure and discharge pressure between the two compressors, to provide for stable operation of the compressors, and improve reliability and power consumption. | 08-01-2013 |
| 20130213084 | TWO-STAGE COMPRESSION REFRIGERATION CYCLE DEVICE - In a two-stage compression refrigeration cycle device, a low-pressure side compression mechanism and a high-pressure side compression mechanism are intermittently operated to control such that the temperature of air blown into a freezer approaches a target temperature. Under the control, the high-pressure side compression mechanism is first stopped, and then the low-pressure side compression mechanism is stopped. Further, when a reference time has elapsed after driving the high-pressure side compression mechanism, then the low-pressure side compression mechanism is driven. The refrigeration cycle device can reduce a high-pressure side pressure difference upon driving the high-pressure side compression mechanism, and can also reduce a low-pressure side pressure difference upon driving the low-pressure side compression mechanism, thereby protecting both compression mechanisms. | 08-22-2013 |
| 20130255309 | ENERGY EFFICIENCY OF ROOM AIR CONDITIONER OR UNITARY AIR CONDITIONING SYSTEM BY USING DUAL SUCTION COMPRESSOR - A high-efficiency air conditioning system for chilling an interior of a building that includes: a compressor; a condenser having a condenser fan associated with the condenser that moves air to cool the condenser; at least two evaporator sections wherein a first evaporator section operates at a first evaporator pressure and a second evaporator section operates at a second evaporator pressure that is different than the first evaporator pressure; at least a first throttling device and a second throttling device having different throttling characteristics with the first throttling device being less restrictive than the second throttling device; and a plurality of refrigerant conduits. | 10-03-2013 |
| 20140020424 | DECOMPRESSION DEVICE AND REFRIGERATION CYCLE DEVICE - A body part of a decompression device has a swirl space for swirling a refrigerant that flows from a refrigerant inlet, and a refrigerant outlet that is positioned on an extension line of a swirl center line of the refrigerant and functions as a throttle. Further, a passage cross-sectional area of the refrigerant inlet is configured to be smaller than a twelve-fold value of a passage cross-sectional size of the refrigerant outlet, such that a swirl speed of the refrigerant in the swirl space is increased so as to enable a decompression boiling of the refrigerant around the swirl center line. In such manner, a gas-liquid mixture phase refrigerant securely flows into the refrigerant outlet, and it restricts a fluctuation of a flow amount of the refrigerant flowing toward a downstream side without complicating a cycle structure. | 01-23-2014 |
| 20140047862 | REFRIGERATION DEVICE - An air conditioner ( | 02-20-2014 |
| 20140053597 | REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus ( | 02-27-2014 |
| 20140090414 | VALVE SYSTEM AND METHOD - A flow control valve includes a housing forming internal passages in fluid communication with a port of the valve, and an internal cavity. A flow direction block is disposed in the internal cavity and forms at least one flow passage extending through a portion thereof. The flow direction block is moveable within the internal cavity such that the free ends of the least one flow passage can be selectively aligned with a respective internal passage along an interface as the flow direction block is moved from a first, closed position to a second, open position. A seal is disposed around each interface and includes an internal face, which presses against an outer surface of the flow direction block, and an external face, which presses against the housing. Sealing function is improved, at least in part, by a differential fluid pressure that acts on the seal. | 04-03-2014 |
| 20140102131 | OUTDOOR UNIT OF REFRIGERATION SYSTEM - In an outdoor unit, first through third intermediate heat exchangers and an outdoor heat exchanger are disposed to stand along an air inlet of an outdoor casing, and the outdoor heat exchanger is located above the first through third intermediate heat exchangers. | 04-17-2014 |
| 20140202202 | CENTRIFUGAL COMPRESSOR - A centrifugal compressor ( | 07-24-2014 |
| 20140326018 | CLIMATE-CONTROL SYSTEM HAVING MULTIPLE COMPRESSORS - A system may include first and second compressors and first, second and third heat exchangers. The first heat exchanger may receive working fluid discharged from the first and second compressors. The second heat exchanger may be disposed downstream of the first heat exchanger and may provide working fluid to the first compressor. The third heat exchanger may be disposed between the first and second heat exchangers and may include an inlet and first and second outlets. The first outlet may provide working fluid to the second heat exchanger. The second outlet may provide working fluid to the second compressor. | 11-06-2014 |
| 20150075214 | LIQUEFIER FOR A HEAT PUMP AND HEAT PUMP - A liquefier for a heat pump includes a liquefier space and a process water tank. The process water tank is arranged within the liquefier space such that it is substantially surrounded by liquefied working fluid. A wall of the process water tank, however, is spaced from a wall of the process water tank so that a gap formed to communicate with the region of the heat pump in which compressed gas is present is obtained, so that the process water tank is thermally insulated from the space for liquefied working fluid via this gas-filled gap. The liquefier itself may also be surrounded by the gas region, in order to provide for inexpensive insulation of the liquefier. | 03-19-2015 |
| 20150121949 | REFRIGERATION CYCLE OF REFRIGERATOR - A refrigeration cycle of a refrigerator includes a first refrigeration cycle in which a first refrigerant flows along a first refrigerant tube and a second refrigeration cycle in which a second refrigerant flows along a second refrigerant tube. First and second compressors compress each of the first and second refrigerants, and a combined condenser condenses each of the first and second refrigerants. First and second expansion valves phase-change each of the first and second refrigerants passing through the combined condenser, and first and second evaporators change the refrigerant passing through each of the first and second expansion valves into a low-temperature low-pressure gaseous refrigerant. | 05-07-2015 |
| 20150300662 | Air Conditioner - Provided is an air conditioner which comprises multiple outdoor units, the air conditioner being configured so that, with the use of a low cost configuration, required refrigeration machine oil is supplied to all the outdoor units through refrigerant piping and so that the air conditioner has increased reliability. An air conditioner is provided with multiple indoor units and with four outdoor units which are connected to the multiple indoor units through refrigerant piping. A line of first refrigerant piping leading from the multiple indoor units is branched into two lines of second refrigerant piping, each of the two lines of second refrigerant piping is branched into two lines of third refrigerant piping, and the four lines of third refrigerant piping are respectively connected to the four outdoor units. | 10-22-2015 |
| 20160018134 | BRAYTON CYCLE TYPE REFRIGERATING APPARATUS - To provide a Brayton cycle type refrigerating apparatus using multiple stages of compressors and having a good response without reduction in efficiency due to change in heat load of the object to be cooled, the Brayton cycle type refrigerating apparatus ( | 01-21-2016 |
| 20160177954 | MULTI-STAGE CENTRIFUGAL COMPRESSOR AND AIR CONDITIONING UNIT | 06-23-2016 |
