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7624585 |
Freezer unit
The invention provides a freezer unit using refrigerants serving as an oil carrier without using any refrigerants of subjects of the ozone regulation and being capable of realizing extremely low...
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7495442 |
Method for cooling coils and shim iron
A cooling system for electrical coils, such as a coil in a magnetic resonance tomography apparatus, has a heat dissipation device with a fluid and a tempered reservoir for the fluid. The fluid is...
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7185501 |
Cryogenic cooling system and method with backup cold storage device
A cooling system for providing cryogenic cooling fluid to a thermal load, the system comprising: a main cryogenic refrigeration system; a cryogenic cooling fluid feed line having a feed line outlet...
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7111467 |
Ultra-low temperature closed-loop recirculating gas chilling system
Disclosed is an ultra-low temperature, dual-compressor ( 114,144 ), recirculating gas chilling system that includes a closed-loop mixed-refrigerant primary refrigeration system ( 110 ) in...
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7024877 |
Water heating system
A water heating system including a water storage vessel; a water circuit; first and second heat exchangers operably disposed in the water circuit; and a vapor compression system defining a...
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6990816 |
Hybrid capillary cooling apparatus
The apparatus is a hybrid cooler which includes one loop within which a heated evaporator forms vapor that moves to a condenser because of the vapor pressure which also drives the liquid condensate...
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6941763 |
Heat pump and dehumidifying apparatus
This heat pump and dehumidifying apparatus have small energy-consumed per moisture-removed ratios. Their components include a pressurizer for raising refrigerant pressure; a condenser for...
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6938427 |
Systems and methods for closed system cooling
This invention is directed to systems, apparatuses and methods for reducing the temperature of a condenser fluid, used in a condenser in an air conditioning system to cool a compressed refrigerant,...
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6840746 |
Resistive suction muffler for refrigerant compressors
A resistive muffler attenuates sound generated by the gas intake and suction valve during compressor operation of a refrigerant compressor. The resistive muffler is assembled inline with the...
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6609390 |
Two-refrigerant refrigerating device
A two-stage cascade refrigerating system including a primary side refrigerant circuit, and at least one secondary side refrigerant circuit. The receiver of the primary refrigerant circuit is...
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6595009 |
Method for providing refrigeration using two circuits with differing multicomponent refrigerants
A method for providing refrigeration wherein a first multicomponent refrigerant is condensed to form a saturated liquid and vaporized against a condensing second multicomponent refrigerant which...
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6564567 |
Method and device for heating and cooling a compartment of a motor vehicle
A method and a device for heating and cooling a compartment of a motor vehicle powered by an internal combustion engine are described. During a cooling operation, a medium in the circuit is guided...
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6529133 |
Repository and monitoring system therefor
A repository including: an input unit ( 3 ) for setting the temperature of the interior ( 2 ) of a repository ( 1 ); a measuring unit ( 5,6 ) for measuring the temperature of the interior of the...
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6477855 |
Chiller tank system and method for chilling liquids
A chiller tank system for containment of chilled liquids comprises a first tank and a second tank position within the first tank. The first tank is spaced apart from the second tank so that...
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6467279 |
Liquid secondary cooling system
A secondary loop refrigeration system includes plural refrigeration zones serially connected in a secondary cooling loop using a R-134 a as a liquid refrigerant in increasing order of operating...
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6438990 |
Refrigeration system
The present invention discloses a self-contained recirculating refrigeration system wherein the refrigerant is referred to as HTF (heat transfer fluid) which is cooled using liquid nitrogen. HTF...
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6415613 |
Cryogenic cooling system with cooldown and normal modes of operation
A cryogenic cooling system for use with a superconductive electric machine includes a first set of components arranged in a first circuit and adapted to force flow of a cryogen in the first circuit...
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6338254 |
Refrigeration sub-cooler and air conditioning dehumidifier
An efficient method and system for dehumidifying an environment and refrigerating a second environment with a closed loop refrigeration system consisting of compressing refrigerant with a...
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6330809 |
Application of a chiller in an apparatus for cooling a generator/motor
A generator/motor cooling apparatus comprising a cooler for cooling gas used to cool the generator/motor, the gas flowing serially across first and second heat exchangers that are supplied with...
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6327865 |
Refrigeration system with coupling fluid stabilizing circuit
A refrigeration system wherein refrigeration is generated at a relatively steady output by a refrigeration circuit and passed into a coupling fluid for transfer to a refrigeration load using a...
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6314744 |
Air-conditioning system and operation control method thereof
A hybrid air-conditioner comprises a vapor adsorption cycle air-conditioner, a vapor compression refrigerating cycle air-conditioner, an external heat source circuit and the like. In the case where...
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6205795 |
Series secondary cooling system
A secondary loop refrigeration system includes plural refrigeration zones serially connected in a secondary cooling loop using a liquid refrigerant in increasing order of operating temperatures,...
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5992160 |
Make-up air energy recovery ventilator
In an air conditioning system designed to operate in relatively high humidity conditions, an auxiliary unit, including a complete and independent operating refrigerant circuit, is installed in air...
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5983656 |
Air conditioning system
An air conditioning system is provided. A driving force is constantly transmitted to a clutchless compressor via a pulley. A condenser causes a high-temperature and high-pressure gaseous...
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5934083 |
Air-conditioning system for an aircraft cabin
The climate in one or more aircraft cabin zones is controlled to achieve a minimal use of fresh air and an optimal use of recirculation air while satisfying official regulation requirements and...
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5916249 |
Method and apparatus for the recovery of ammonia refrigerant
A method of and apparatus for recovery of ammonia refrigerant using paired evaporation condensation processes in which an essentially closed water loop is used to efficiently transfer heat energy...
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5906104 |
Combination air conditioning system and water heater
A heat transfer system including mechanical and electrical components for use with a mechanical air conditioning system to enable the system to efficiently reject heat to a water source, such as a...
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5794453 |
Apparatus and method for removing condensable material from a gas
An improved method and apparatus is disclosed for removing condensable material from a gas. The gas is caused to flow in series through a chiller for cooling the gas and condensing the condensable...
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5729993 |
Precooled vapor-liquid refrigeration cycle
A precooled vapor-liquid refrigeration cycle includes a basic vapor-liquid cycle and an auxiliary regenerative vapor-liquid cycle having a heat exchange relationship between them. The basic cycle...
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5507158 |
Device for indirect production of cold for refrigerating machine
A device for indirect cold production for a compression, absorption, adsorption or chemical refrigerating system comprises an evaporator in heat exchange relationship with the fluid to be cooled in...
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5391925 |
Prime mover driven compressor/chiller with motor on common shaft for large cooling systems
A method of driving a large cooling system having a compressor operating as a chiller driven by a prime mover, such as a gas turbine, reciprocating engine or steam turbine, in conjunction with an...
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5386709 |
Subcooling and proportional control of subcooling of liquid refrigerant circuits with thermal storage or low temperature reservoirs
The present invention provides method and apparatus for incorporating thermal storage and other low-temperature reservoirs with new or retrofittable refrigerant circuit devices to increase their...
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5351502 |
Combination ancillary heat pump for producing domestic hot h20 with multimodal dehumidification apparatus
The ancillary heat pump apparatus of the present invention for producing domestic hot water generally includes a domestic hot water heat pump having refrigerant and water circuits which are...
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5284029 |
Triple effect absorption heat exchanger combining second cycle generator and first cycle absorber
Triple-effect absorption heat exchange apparatus for transferring heat from a heat load to a heat sink. The apparatus comprises first and second interconnected refrigerant loops. The first loop...
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5265442 |
Non-compressive auxiliary air conditioning system
A system for cooling employee and customer-occupied area of a commercial establishment of a type having an internal refrigerated inventory storage compartment includes a water reservoir located...
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5241829 |
Method of operating heat pump
A method of operating a heat pump having at least one circuit for circulation of a refrigerant comprising a compressor, a once-through path, complete counterflow type condenser as a...
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5140829 |
Air conditioning system
A space-cooling system based upon the present invention cools the space through a heat exchanger carrying ground water that has been slightly chilled by a heat pump. The chiller can be referenced...
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5099651 |
Gas engine driven heat pump method
A heat pump system selectively operable in cooling and heating modes of operation and having an internal combustion engine prime mover which produces refrigerant vapor compression, and which...
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5052187 |
Water flow control for heat pump water heaters
A heat pump for heating water in a condenser where the water is circulated through the condenser by a pump controlled by the condensing temperature of the refrigerant to return water heated to a...
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5052186 |
Control of outdoor air source water heating using variable-speed heat pump
An integrated heat pump and hot water system of the type having a variable speed compressor is controlled during a water heating mode, in which outdoor air serves as the heat source. The...
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5035117 |
Thermal engine driven heat pump for recovery of volatile organic compounds
The present invention relates to a method and apparatus for separating volatile organic compounds from a stream of process gas. An internal combustion engine drives a plurality of refrigeration...
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5025634 |
Heating and cooling apparatus
A heating and cooling method and apparatus for a single, closed loop configuration for directly exchanging thermal energy with the earth for both heating and cooling purposes. A refrigerant, which...
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5016444 |
One-and-a-half effect absorption cycle
Apparatus and process are disclosed for a new absorption heat pump cycle which achieves a COP of approximately one and a half times that achievable in a single-effect cycle, at generator...
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4966005 |
Advanced hybrid air/vapor cycle ECS
An advanced hybrid air and vapor cycle environmental control system (ECS) to provide conditioned, pressurized air to an aircraft as well as liquid cooling for the avionics of the aircraft.
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4955930 |
Variable water flow control for heat pump water heaters
A heat pump for heating water in a condenser where the water is circulated through the conductor by a pump controlled by the condensing pressure of the refrigerant to return water heated to a...
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4953361 |
Process for the operation of a generator absorption heat pump heating installation for space heating, water heating, etc. and generator absorption heat pump heating installation
A heating installation and process for operating a monovalent generator absorption heat pump heating installation for space heating, water heating, ect. up to a calorific power of approximately 20...
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4949547 |
Method of and apparatus for air-conditioning individual spaces
A central heat source system is used as the method of air-conditioning individual spaces, and warm water in the range of 15° to 25° C. is produced by a warm water generator having a heating...
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4918933 |
Add-on refrigerant boiler for electric heat pump
This invention relates to a method of supplying desired quantities of heat, generated from selected inexpensive fuel burns in the firebox of a boiler, to an electric heat pump's refrigerant, while...
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4893476 |
Three function heat pump system with one way receiver
The invention relates to a three function heat pump system which provides space heating, space cooling and hot water production. The system permits hot water production all year long without...
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4827728 |
Seven-effect absorption refrigeration
A seven-effect absorption refrigeration cycle is disclosed utilizing three absorption circuits. In addition, a heat exchanger is used for heating the generator of the low absorption circuit with...
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