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| Number | Title | Issue Date |
| 8051675 | Thermal system A thermal system (100) includes a main pump (104) which pumps refrigerant to a device under test evaporator cluster (124). A system condenser (130) converts the gaseous refrigerant into liquid and the condenser liquid return is provided t... | 11/08/2011 |
| 7707850 | Drainage mechanism for a flooded evaporator A liquid refrigerant drainage mechanism is described for use in a flooded evaporator to mitigate liquid carryover. The drainage mechanism can trap liquid refrigerant droplets, create a liquid column to overcome a pressure difference across the mechanism and drain li... | 05/04/2010 |
| 7690219 | Vapor compression refrigerating systems and modules which comprise a heat exchanger disposed within a gas-liquid separator A module, such as a module configured to be used in a refrigeration system, includes a gas-liquid separator which is configured to receive a first refrigerant, to separate the first refrigerant into a gas portion of the first refrigerant and a liquid portion of the ... | 04/06/2010 |
| 7647790 | 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 flowin... | 01/19/2010 |
| 7421855 | Gas trap distributor for an evaporator A shell-and-tube evaporator of a refrigerant system includes a refrigerant inlet distributor that traps a pocket of gaseous refrigerant to displace liquid refrigerant underneath the evaporator's tube bundle, thereby reducing the total charge of refrigerant in the ev... | 09/09/2008 |
| 7406837 | Ammonia/Corefrigeration system An ammonia/CO2 refrigerating system having a liquid pump for feeding the liquid CO2 cooled in a brine cooler by the utilization of the vaporization latent heat of ammonia in an ammonia refrigeration cycle to a cooler, which comprises a liquid r... | 08/05/2008 |
| 7353659 | System and method for controlling an economizer circuit A control algorithm for controlling an economizer circuit in a chiller system is provided. The control algorithm opens and closes a port valve in the economizer circuit in response to predetermined criteria to engage and disengage the economizer circuit. The predete... | 04/08/2008 |
| 7350375 | Receiver and service cartridge for a condenser system A receiver (24) for a condenser system (20) includes a body (32) in fluid communication with a header (28) of the condenser system (20). A first cap (38) is coupled to an end (34) of the body (32) and has a sad... | 04/01/2008 |
| 7343756 | Air conditioning system An air conditioning system comprises a first tank connected to an outlet side refrigerant line of an indoor unit, a second tank disposed to be lower than the first tank, middle tank installed between the first tank and the second tank, a heat source cycle for depres... | 03/18/2008 |
| 7293428 | Refrigerating machine A refrigerating machine comprising a compressor, a radiator, a pressure-reducing device, a gas-liquid separator, plural heat absorbers functioning selectively in different temperature zones, a unit for allowing introduction of gas refrigerant separated in the gas-li... | 11/13/2007 |
| 7287399 | Collector for the liquid phase of the working medium of an air-conditioning system A collector for a liquid phase of a working medium of an air-conditioning system has a one-piece collecting container with a solid upper end wall and thickened base region for coupling blocks of a high-pressure piping system and a device for emergency emptying. Flow... | 10/30/2007 |
| 7263848 | Heat pump system A heat pump is operable in a heating mode and a cooling mode and includes two identical heat exchangers. The heat exchangers alternate between operating as a condenser and an evaporator as the heat pump switches between the heating mode and the cooling mode. The hea... | 09/04/2007 |
| 7251946 | Method for controlling evaporation temperature in an air conditioning system A method for controlling evaporation temperature in an air conditioning system, especially an air conditioning system in a motor vehicle, comprising a latent cold accumulator which can be cooled by an evaporator (1). The evaporation temperature of a coolant i... | 08/07/2007 |
| 7222500 | Method and device for absorption cooling When using systems that use the principle of absorption for the production of cold there is a great delay between the starting of the installation and the production of cold. This delay is due to the necessary time for the production of vapour. According to t... | 05/29/2007 |
| 7220110 | Compressor having a throttled-return passage connecting an oil accumulator to a seal container A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element.... | 05/22/2007 |
| 7194873 | Refrigerating machine and intermediate-pressure receiver A refrigerating machine equipped with a compressor 2 having an intermediate-pressure portion 2M in which refrigerant having intermediate pressure higher than the pressure of the refrigerant at the suction side thereof and lower than the pressure of the... | 03/27/2007 |
| 7178358 | Vapor-compression refrigerant cycle system with refrigeration cycle and Rankine cycle A vapor-compression refrigerant cycle system with a refrigeration cycle and a Rankine cycle includes a compressor, a radiator, a gas-liquid separator, a decompression device and an evaporator. In the vapor-compression refrigerant cycle system, a liquid pump is dispo... | 02/20/2007 |
| 7143602 | Ejector-type depressurizer for vapor compression refrigeration system In an ejector-type depressurizer, a nozzle arrangement converts pressure energy of refrigerant supplied from a radiator into velocity energy to depressurize and expand the refrigerant, and a pressurizer arrangement mixes the refrigerant discharged from the nozzle ar... | 12/05/2006 |
| 7131290 | Non-condensing gas discharge device of condenser Gaseous-phase portion of a condenser contains vapor and a non-condensing gas, such as air, that impedes condensation of the vapor, and a non-condensing gas discharge device of the condenser is arranged to discharge only the non-condensing gas from the condenser. The... | 11/07/2006 |
| 7093461 | Receiver-dryer for improving refrigeration cycle efficiency A receiver-dryer of an integrated receiver-dryer-condenser for an air-conditioning system that maximizes a liquid phase of refrigerant therein for return to a sub-cooling stage of a condenser. A receiver-dryer vessel includes a base wall, a side wall extending from ... | 08/22/2006 |
| 7086248 | Ejector cycle device An ejector cycle device includes a gas-liquid separator for separating a refrigerant flowing out of an ejector into gas-phase refrigerant and liquid-phase refrigerant. The gas-liquid separator further separates refrigeration oil from the refrigerant. The refrigerati... | 08/08/2006 |
| 7069740 | Accumulator and air conditioning system using the same An improved accumulator is disclosed, which includes a body having an empty space therein; an inlet tube inserted into the inside of the body from a top thereof, downwardly, for an inflow of a refrigerant to the inside of the body; an outlet tube inserted into the i... | 07/04/2006 |
| 7051551 | Compressor A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element.... | 05/30/2006 |
| 7040117 | Gas-liquid separator and ejector refrigerant cycle using the same In an ejector refrigerant cycle, even if refrigerant is super-heated in an evaporator, super-heated gas refrigerant does not directly flow into a gas-liquid separator, so that boiling of refrigerant does not occur in the gas-liquid separator due to evaporation of re... | 05/09/2006 |
| 7036336 | Soldered condenser The invention relates to a soldered condenser for a motor vehicle air conditioning unit, comprising a pipe/rib block, collector pipes which are arranged on both sides thereof and receive the ends of the pipes, and a collector which is arranged parallel to one of the... | 05/02/2006 |
| 7028506 | Indoor unit of packaged air conditioner Disclosed is an indoor unit of a packaged air conditioner including a cabinet having an inlet grill at a lower part and an outlet grill at an upper part so as to provide a circulation space of an indoor air, an evaporator established on a slant at an inner upper par... | 04/18/2006 |
| 7024883 | Vapor compression systems using an accumulator to prevent over-pressurization An accumulator acts as a buffer to prevent over-pressurization of the vapor compression system while inactive. By determining the maximum storage temperature and the maximum storage pressure a system will be subject to when inactive, a density of the refrigerant for... | 04/11/2006 |
| 6978637 | Ejector cycle with insulation of ejector In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, an insulation member is provided on an outer surface of the ejector to suppress a heat exchange with an external side. When a suction portion of the ejector is insulated by the ins... | 12/27/2005 |
| 6968713 | Desiccant cup with integral filter A desiccant container for use in an accumulator or a receiver/dryer of a vehicle includes at least one integral mesh screen for preventing small particles from passing therethrough. Preferably, the container includes two integral mesh screens, one forming an upper s... | 11/29/2005 |
| 6948335 | Compression mechanism for refrigeration system The present invention provides an oil equalizing circuit for a refrigeration system provided with a plurality of compression mechanisms, the oil equalizing circuit being capable of supplying sufficient oil to the compressors that are running during partial load oper... | 09/27/2005 |
| 6945074 | Vapor-compression refrigerant cycle system In a vapor-compression refrigerant cycle system, a switching device is provided to switch one of a first mode where high-pressure refrigerant discharged from a compressor is directly introduced to an exterior heat exchanger and a second mode where the high-pressure ... | 09/20/2005 |
| 6945066 | Refrigeration cycle apparatus A refrigeration cycle apparatus using carbon dioxide as a refrigerant has a compressor, an outdoor heat exchanger, an expander, an indoor heat exchanger and an auxiliary compressor. The auxiliary compressor is driven by power recover by the expander. When refrigeran... | 09/20/2005 |
| 6941769 | Flash tank economizer refrigeration systems A flash tank configuration for an economizer is provided that is inexpensive and simple to construct, reliable to operate, and efficient for use in an economizer compression refrigeration system. The configuration includes an upper baffle and a lower baffle configur... | 09/13/2005 |
| 6941770 | Hybrid reheat system with performance enhancement An economizer loop is incorporated into the refrigerant system, which in conjunction with any selected reheat mode of operation, provides augmented performance, improved reliability, and enhanced control in meeting external heat load demands. A refrigerant system in... | 09/13/2005 |
| 6935421 | Vehicle air conditioner with ejector refrigerant cycle An air conditioner includes a compressor for compressing refrigerant, an exterior heat exchanger for performing heat exchange between refrigerant and outside air, an interior heat exchanger for performing heat exchange between the refrigerant and air to be blown int... | 08/30/2005 |
| 6920922 | Vehicle air conditioner with vapor-compression refrigerant cycle An air conditioner includes a compressor for compressing refrigerant, an exterior heat exchanger for performing heat exchange between refrigerant and outside air, an interior heat exchanger for performing heat exchange between the refrigerant and air to be blown int... | 07/26/2005 |
| 6918266 | Ejector for vapor-compression refrigerant cycle In an ejector, a nozzle is provided within a housing to defining a passage portion around the nozzle, and a suction port is provided in the housing to draw a refrigerant by entrainment of a driving refrigerant jetted from the nozzle. Further, a wall portion is provi... | 07/19/2005 |
| 6918436 | Brazed condenser for an air conditioner In a brazed condenser for an air conditioner, a collecting tube connected with a collector is prefabricated as a one-piece tube. The collecting tube is connected by tack weld seams with the collector before brazing the collecting tube and the collector together.... | 07/19/2005 |
| 6915658 | Accumulator and air conditioning system using the same An accumulator having a heater therein and an air conditioning system using the same is disclosed, in which the accumulator includes a body having an empty space therein; an inlet tube inserted into the inside of the body through a predetermined external point, for ... | 07/12/2005 |
| 6904769 | Ejector-type depressurizer for vapor compression refrigeration system In an ejector-type depressurizer, a nozzle arrangement converts pressure energy of refrigerant supplied from a radiator into velocity energy to depressurize and expand the refrigerant, and a pressurizer arrangement mixes the refrigerant discharged from the nozzle ar... | 06/14/2005 |
