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| Number | Title | Issue Date |
| 8161759 | Method of and apparatus for transferring heat energy between a heat exchanging subsystem above the surface of the earth and material therebeneath using one or more coaxial-flow heat exchanging structures producing turbulence in aqueous-based heat-transfering fluid flowing along helically-extending outer flow channels formed therein A method of and apparatus for transferring heat energy between a heat exchanging subsystem installed above the surface of the Earth, and material beneath the surface of the Earth, by installing one or more coaxial-flow heat exchanging structures in the material bene... | 04/24/2012 |
| 8109102 | Adjustment of compressor operating limits A refrigerant system includes a compressor that has safe operating limits that are also built into a refrigerant system control to protect the compressor. Under certain conditions, these safe operational limits may be changed to allow the compressor to operate beyon... | 02/07/2012 |
| 8061151 | Refrigerant compressor Disclosed is a compressor (12) for a refrigeration system (10) including a housing (30) and at least one compressor impeller (24, 26) located in the housing (30) capable of compressing a refrigerant flow (14) through the com... | 11/22/2011 |
| 8042345 | Outdoor unit and air conditioning system using the same An air conditioning system comprising: an indoor and an outdoor unit connected through common power supply lines The indoor unit comprising a first communications circuit in communication with the outdoor unit through first and second communication lines independent... | 10/25/2011 |
| 8037699 | Heat exchanger and air conditioner using the same When forming fins and heat transfer tubes by aluminum material, a pressure loss in the tube does not increase and a heat exchanger can be provided having heat transfer performance equal to or higher than a copper tube. The heat exchanger includes fins made of an alu... | 10/18/2011 |
| 8024937 | Method for leak detection in heat transfer systems Disclosed is a method for detecting a leak in a closed loop heat transfer system comprising monitoring the pressure of the heat transfer composition inside said heat transfer system, wherein a drop in pressure indicates a leak. Also disclosed is a heat transfer syst... | 09/27/2011 |
| 8020390 | Cooling infrastructure leveraging a combination of free and solar cooling Energy-efficient data center cooling techniques that utilize free cooling and/or solar cooling are provided. In one aspect, a cooling system is provided including a cooling tower; one or more modular refrigeration chiller units; and a water loop that can be selectiv... | 09/20/2011 |
| 8015833 | Automotive climate system and method of controlling same An automotive climate control system includes an evaporator, a variable speed compressor and a controller. The controller is configured to periodically alter a previous target evaporator temperature at a selected rate to generate a current target evaporator temperat... | 09/13/2011 |
| 8011194 | Collapsible cooler convertible to a stadium seat A collapsible foldable cooler can be converted to a stadium seat by folding back a top lid and folding diagonally down the top portions of the sidewalls. The folded down top lid extends along the back wall, forming a part of a converted stadium seat backrest, while ... | 09/06/2011 |
| 7997092 | Refrigerant vapor compression system operating at or near zero load A method is provided for operating a refrigerant vapor compression system at substantially zero cooling capacity to facilitate tight temperature control within a climate-controlled environment associated with the refrigerant vapor compression system. The method incl... | 08/16/2011 |
| 7992395 | Expansion valve with piezo material A method and system of controlling the temperature of a refrigeration system. In an embodiment, an expansion valve for a refrigeration system comprises an entry portion, an exit portion, and a flow control portion including a piezo material. The entry portion is con... | 08/09/2011 |
| 7971441 | Receiver/dryer-accumulator-internal heat exchanger for vehicle air conditioning system An integrated receiver/dryer-accumulator-internal heat exchanger for use in a vehicle HVAC system and a method of operation. The integrated receiver/dryer-accumulator-internal heat exchanger may include an accumulator portion having an accumulator inlet configured t... | 07/05/2011 |
| 7958739 | Refrigeration hot gas desuperheater systems A system for desuperheating hot gaseous refrigerant using both a heat exchanger and a dispersed Venturi-driven injection of liquid refrigerant is disclosed. Further, a system, relating to cooling at least one compressed superheated refrigerant fluid prior to condens... | 06/14/2011 |
| 7950241 | Vapor compression and expansion air conditioner The present invention is drawn to a method for creating a refrigeration system comprising a piston device for the compressor and expander functions normally provided by a Carnot cycle. Solutions for modifying the overall system to utilize the pulsed nature of the pi... | 05/31/2011 |
| 7942012 | Refrigerator with select temperature compartment A dual evaporator refrigerator includes a freezer compartment and a refrigeration compartment with an enclosed pan. A freezer evaporator with a freezer fan is in the freezer compartment for cooling the freezer compartment and a refrigeration evaporator with a first ... | 05/17/2011 |
| 7937958 | Method of manufacturing low-temperature storage, and low-temperature storage An object is to provide a method of manufacturing a low-temperature storage in which an insulating performance of an insulating box article is enhanced, and an amount of contents of an inner box can be enlarged. In the low-temperature storage comprising: the insulat... | 05/10/2011 |
| 7913498 | Electrical submersible pumping systems having stirling coolers A submersible pumping system includes a submersible pump; a gauge disposed proximate the submersible pump; a Stirling cooler disposed proximate the gauge, wherein the Stirling cooler has a cold end configured to remove heat from the gauge and a hot end configured to... | 03/29/2011 |
| 7908873 | Minimized insulation thickness between high and low sides of cooling module set utilizing gas filled insulation panels A variable refrigeration system including a cooling system having a compressor, a condenser, and a refrigerant. An active insulation system includes an insulation portion disposed therein that holds a gas. The insulation portion is operably connected to the compress... | 03/22/2011 |
| 7891203 | Method and system for cooling items using vehicle HVAC system A vehicle heating, ventilation and air conditioning (“HVAC”) system includes an HVAC control, a fan, an evaporator downstream from the fan, a cooler box downstream from the evaporator, a condenser in fluid communication with the evaporator and a compressor in fl... | 02/22/2011 |
| 7891201 | Refrigerant vapor compression system with flash tank receiver A refrigerant vapor compression system includes a flash tank receiver disposed in the refrigerant circuit intermediate the refrigerant cooling heat exchanger and the refrigerant heating heat exchanger. The flash tank receiver, which receives a liquid/vapor refrigera... | 02/22/2011 |
| 7891202 | Absorption system An absorption system includes a generator, a condenser, an evaporator, and an absorber configured to circulate a solution of an absorber and a refrigerant. A purge system removes a non-condensable gas from the absorber. The purge system includes a first pump to remo... | 02/22/2011 |
| 7882707 | Refrigeration hot gas desuperheater systems A system for desuperheating hot gaseous refrigerant using both a heat exchanger and a dispersed Venturi-driven injection of liquid refrigerant is disclosed. Further, a system, relating to cooling at least one compressed superheated refrigerant fluid prior to condens... | 02/08/2011 |
| 7874169 | Power management system for integrated transport refrigeration unit A power management system (36) supplies power to a refrigeration unit (20) of a vehicle (22). When a vehicle engine (40) is running, the refrigeration unit receives power from a DC power source (38). When the vehicle engine is not ... | 01/25/2011 |
| 7856834 | 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 u... | 12/28/2010 |
| 7827809 | Flash tank design and control for heat pumps A method includes operating a compressor with a vapor injection system and selectively supplying vapor to the compressor during compressor operation through actuation of a first control valve. The method further includes closing the first control valve to prevent va... | 11/09/2010 |
| 7818971 | COcooling and heating apparatus and method having multiple refrigerating cycle circuits A CO2 cooling and heating apparatus and method permit simultaneous production of high-temperature heat source and low-temperature heat source having a temperature difference therebetween. The apparatus/method uses CO2 (carbon dioxide) as a refr... | 10/26/2010 |
| 7802438 | Slope predictive control and digital PID control The present invention provides an airflow control loop that uses averaged airflow measurements without the problems that are normally encountered with averaging measurements, such as the delay introduced into the airflow control loop. This is accomplished, in the pr... | 09/28/2010 |
| 7765812 | System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof A system for detecting a mis-connected state between communication lines for a multi-type air conditioner and a method thereof. The system comprises an indoor unit pipe temperature detection unit for detecting a temperature of an indoor unit pipe, and a microprocess... | 08/03/2010 |
| 7752852 | Vapor compression circuit and method including a thermoelectric device A system and method includes a thermoelectric device in heat-transfer relation with a working fluid flowing through a vapor compression circuit. Heat is transferred from the working fluid to a first fluid medium and then from the first fluid medium to a second fluid... | 07/13/2010 |
| 7673463 | Cooling system methods and apparatus for a refrigeration device A refrigerator includes a housing defining at least one chamber and a condenser system in which a refrigerant flows. The condenser system includes a condenser, a switching device, and a hot gas loop in flow communication with one another. The condenser system is con... | 03/09/2010 |
| 7562535 | Method for the automatic starting and stopping of an internal combustion engine The invention relates to a method for the automatic starting and stopping of an internal combustion engine. Release of a stop mode for the internal combustion engine is enabled depending on a time period that depends on the temperature difference between the tempera... | 07/21/2009 |
| 7543454 | Method and auxiliary system for operating a comfort subsystem for a vehicle According to one form of the invention, an auxiliary system is provided for supplying air conditioning to the cabin of a truck. The system includes an air conditioning compressor having a jackshaft mounted on a hub of the compressor. The system further includes an e... | 06/09/2009 |
| 7484375 | Air conditioning system for motor vehicles An air conditioning system is provided for motor vehicles, which are driven by an internal-combustion engine equipped with an overrun fuel cut-off, and having a compressor driven by the internal-combustion engine for setting a defined desired evaporator temperature,... | 02/03/2009 |
| 7434412 | Computer equipment temperature control system and methods for operating the same A system and method for controlling temperature in an equipment enclosure are disclosed. The system includes an enclosure having a top side, side walls, a front side, and a back side. The enclosure is configured to receive computer equipment. Further included is an ... | 10/14/2008 |
| 7426836 | Method and apparatus for air conditioning using a primary and an ancillary power source A method for air conditioning using a primary power source augmented with an ancillary power source which is accomplished by receiving a heat-laden first working fluid at an initial pressure; pre-pressurizing the heat-laden first working fluid to a pre-pressurizatio... | 09/23/2008 |
| 7416679 | 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant and heat transfer compositions comprising a fluoroether Compositions of 1,1,1,2,2,4,5,5,5-nonafluoro-4(trifluoromethyl)-3 pentanone can be used in heat transfer refrigeration and air conditioning systems. The compositions may be in combination with fluoroethers. The compositions may be azeotropic or near azeotropic. ... | 08/26/2008 |
| 7412837 | Method for use in controlling an absorption refrigerating system, and an absorption refrigerator The invention relates to a method for controlling a running time of an absorption refrigerating system of an absorption refrigerator, which absorption refrigerator comprises two differently tempered refrigerator compartments. The method comprises the steps of: monit... | 08/19/2008 |
| 7412838 | Heat pump using COas refrigerant and method of operation thereof A heat pump employing CO2 as refrigerant and utilizing heat source of natural water, e.g. well water, ground water, river water or sea water, effectively is applied to an air conditioning system in order to enhance heating/hot water supplying capacity and... | 08/19/2008 |
| 7406833 | Refrigerator storage system A refrigerator comprising a fresh food compartment, a freezer compartment, a lower freezer drawer and an upper freezer bin. A primary set of glides allow the freezer drawer and the upper bin to be pulled out of the freezer compartment. A secondary set of glides moun... | 08/05/2008 |
| 7406834 | Self-contained mobile walk-in cooler A self-contained mobile walk-in cooler is disclosed. The self-contained mobile walk-in cooler is comprised of a refrigeration unit, a gasoline generator to provide power to the refrigeration unit when a permanent power source is unavailable, and a mobile carriage fo... | 08/05/2008 |
