Class / Patent application number | Description | Number of patent applications / Date published |
062086000 | Reducing pressure on compressed gas | 25 |
20100024445 | SIMULTANEOUSLY PROVIDING RENEWABLE POWER AND COOLING FOR DATA CENTER OPERATION - A method of cooling a data center can include: extracting compressed air from a storage vessel or process stream, expanding the air to lower a pressure of the air, with the ratio of the pressure of air after expansion to the pressure of air before expansion being the critical pressure ratio, defining choked flow, providing a constant mass rate of cooling air, thus lowering a temperature of the air; and dispersing the expanded air through a heat sink onto a microprocessor or other heat generating component of a server or a storage device, thus cooling the microprocessor or the other heat generating component of the server or the storage device. | 02-04-2010 |
20110214438 | METHOD FOR CONTROLLING A FLOW OF REFRIGERANT TO AN EVAPORATOR - A method for controlling a flow of refrigerant to an evaporator ( | 09-08-2011 |
20130036753 | THERMAL CONTROL SYSTEM AND METHOD - A system for improving the thermal efficiency of a thermal control loop in which refrigerant after compression and condensation is applied to an evaporator employs a subsidiary counter-current heat exchange intercepting refrigerant flow to maintain the quality of the refrigerant by exchanging thermal energy between the input flow and the output flow from the evaporator. The same principle is effective, with particular advantage when small connections have to be made, in systems using mixed phase media and using the concept of direct energy transfer with saturated fluid. | 02-14-2013 |
20130180270 | AIR-CYCLE ENVIRONMENTAL CONTROL SYSTEMS AND METHODS FOR AUTOMOTIVE APPLICATIONS - An air-cycle air conditioning system and method, using an automotive turbocharger as the core of the system, was designed and tested. Effects on engine performance were minimized while maximizing the possible cooling possible and also minimizing weight and space requirements. An unmodified automotive turbocharger was tested initially as a baseline in a Reversed-Brayton Cycle air cooling system. A second air-cycle machine, assembled from commercial turbocharger components chosen individually to optimize their performance for cooling purposes, was tested to improve the overall cycle efficiency. An optimized air-cycle air conditioning system was tested on an internal combustion engine to simulate more realistic operating conditions and performance. | 07-18-2013 |
20130305750 | METHOD AND ARRANGEMENT FOR EXPANDING A GAS STREAM COMPRISING CARBON DIOXIDE - The present disclosure relates to a method and an arrangement for expanding a gas stream comprising carbon dioxide, CO | 11-21-2013 |
20160047576 | AIR CONDITIONER AND METHOD OF CONTROLLING THE SAME - An air conditioner and a method of controlling the same are provided. The air conditioner includes first and second compressors capable of performing multi-stage compression, a condenser for condensing a refrigerant compressed in the first and second compressors, a refrigerant separation device for separating the refrigerant to be injected to the first or second compressor of the refrigerant condensed in the condenser, injection tubes extending from the refrigerant separation device to the first and second compressors to guide injection of the refrigerant, a main expansion device disposed at an outlet-side of the refrigerant separation device to decompress the refrigerant, an evaporator for evaporating the refrigerant decompressed in the main expansion device, a valve device disposed at an outlet-side of the first compressor to guide the refrigerant compressed in the first compressor to the condenser or the second compressor, and a bypass tube extending from the valve device to an suction-side of the second compressor. | 02-18-2016 |
20160131376 | AIR CONDITIONER AND METHOD OF CONTROLLING THE SAME - An air conditioner and a method of controlling the same are provided. The air conditioner includes an outside unit, which is provided with a compressor and an evaporator, an outside temperature sensor attached to the outside unit to sense outside temperature, an outside humidity recognition part attached to the outside unit to recognize information about outside humidity, a low pressure sensor that senses an evaporation pressure of the evaporator, and a control part that controls an operation of the compressor, based on both information about dew-point temperature sensed from the outside temperature sensor and the outside humidity recognition part and information about the evaporation pressure sensed from the low pressure sensor. The control part changes an operation frequency of the compressor according to whether the evaporation pressure is not lower than a preset reference low pressure, to prevent frosting of the evaporator. | 05-12-2016 |
062087000 | Converting energy of expansion to mechanical movement | 18 |
20090126377 | HEAT PUMP SYSTEM AND HEAT PUMP OPERATION METHOD - A compact heat pump system and a heat pump operation method, which can avoid the occurrence of surging in a compressor at startup of a heat pump and can directly supply vapor of a working medium produced by the compressor to an external heat-utilizing facility. The heat pump system comprises an evaporator for recovering heat of an external heat source to a working medium supplied as liquid water from the exterior via a water feed channel, thereby evaporating the working medium, a compressor for compressing the working medium evaporated in the evaporator and increasing temperature of the evaporated working medium, and a driving unit for giving motive power to drive the compressor. The heat pump system further comprises a supply channel for supplying, as a heat source, vapor of the working medium having temperature increased by the compressor to an external heat-utilizing facility, and a return channel branched from the supply channel and introducing the working medium discharged from the compressor to the evaporator. | 05-21-2009 |
20090183517 | VAPOR COMPRESSION REFRIGERATING CYCLE, CONTROL METHOD THEREOF, AND REFRIGERATING APPARATUS TO WHICH THE CYCLE AND THE CONTROL METHOD ARE APPLIED - The vapor compression refrigerating apparatus of the invention comprises a compressor | 07-23-2009 |
20090249806 | BERNOULLI HEAT PUMP WITH MASS SEGREGATION - Embodiments of a heat transfer apparatus, and related methods, involve a curved flow path, a heat source external to and in thermal communication with at least a portion of an inner radial boundary of the curved flow path, and a working fluid, including a heavier component and a lighter component, flowing through the flow path. The flow path causes the working fluid to experience centrifugal force so as to preferentially force the heavier component toward the exterior wall portion and thereby cause the lighter component to preferentially absorb heat from the interior wall portion. | 10-08-2009 |
20090277192 | CENTRIFUGAL BERNOULLI HEAT PUMP - Heat pumps move heat from a source to a higher temperature heat sink. This invention enables spontaneous source-to-sink heat transfer. Spontaneous heat transfer is accomplished by conducting heat from the source through rotating disks to a portion of the generally warmer sink flow that is cooled to a temperature below that of the source by the Bernoulli effect. The nozzled flow required for Bernoulli cooling is provided by the corotating disk pairs. The distance between the opposing surfaces of the disk pair decreases with distance from the rotation axis, forming a nozzle. The heat-sink flow through the nozzle is maintained by centrifugal force caused by the circular motion of the gas near the disk surfaces. Embodiments of the invention differ in the paths followed by the source and sink fluid flows, by the number of disk pairs and by the state (gas or liquid.) of the heat source. | 11-12-2009 |
20090282845 | EXPANDER AND HEAT PUMP USING THE EXPANDER - An expander of the invention includes: n-number of rotary type fluid mechanisms (where n is an integer equal to or greater than 2), a first suction port ( | 11-19-2009 |
20110005244 | TRANSCRITICAL FLUID COOLING FOR AEROSPACE APPLICATIONS - A cooling system includes a compressor for compressing a refrigerant from a subcritical state to a supercritical state, a cooler for transferring heat from the refrigerant, an expander for expanding the refrigerant in the supercritical state, an expansion valve for expanding the refrigerant from the supercritical state to the subcritical state and an evaporator for transferring heat from a cooling fluid to the refrigerant in the subcritical state. Work extracted by the expander provides power to the compressor. A method for cooling a vehicle includes compressing a refrigerant from a subcritical state to a supercritical state, cooling the refrigerant, expanding the refrigerant in the supercritical state where work produced by expanding the refrigerant is used to compress the refrigerant, expanding the refrigerant from the supercritical state to the subcritical state, cooling a cooling fluid with the refrigerant in the subcritical state and cooling vehicle components with the cooling fluid. | 01-13-2011 |
20110138822 | AIR CONDITIONING SYSTEM WITH HYBRID MODE BLEED AIR OPERATION - An energy supply system for operating at least one air conditioning system of an aircraft, comprises at least one air line network and at least one electric line network. The air line network is connected to the air conditioning system and at least one bleed air connection for routing bleed air to the air conditioning system. The electric line network is connected to the air conditioning system and at least one electrical energy source for routing electrical energy to the air conditioning system. The air conditioning system has an electrically operable cooling device. By means of the energy supply system according to the invention the energy withdrawn from the power units is better adapted to the energy necessary for operating the air conditioning system and other systems—such as, for example, wing de-icing—and therefore reduces the excess fuel consumption of the aircraft. | 06-16-2011 |
20120192578 | GAS TURBINE BLEED ECS COOLING - A method for managing heat in an airplane includes extracting hot bleed air from a gas turbine engine, and cooling the hot bleed air in a first heat exchanger thereby forming warm bleed air. The method further includes expanding the warm bleed air with a turbine thereby forming cool bleed air, and using the cool bleed air as a heat sink in a second heat exchanger associated with an environmental control system and thereby forming used bleed air. | 08-02-2012 |
20120285184 | ENVIRONMENTAL CONTROL SYSTEM WITH CLOSED LOOP PRESSURE CYCLE - An environmental control system (ECS) for providing conditioned air to a cabin of an aircraft at a desired rate may include a bleed-air driven primary air treatment unit configured to produce pack supply air and to recirculate a portion of the pack supply air into a compressor of the primary air treatment unit. The ECS may also include a bleed-air driven secondary air treatment unit configured to compress ram air at a rate that corresponds to the rate of recirculation. The ECS may be configured to selectively deliver conditioned air from both the primary and the secondary air treatment units to the cabin. | 11-15-2012 |
20130000328 | Centrifugal Air Cycle Air Conditioner - The air conditioning system uses an air cycle thermodynamic process. The system comprises a centrifuge. This centrifuge includes at one of its ends, an axial inlet that funnels air into a centrifugal compressor rotating in unison with the centrifuge. The air is compressed, adiabatically heated and directed to a heat exchanger mounted in the rim of, and rotating with the centrifuge. The air is accelerated with respect the centrifuge by varying the centrifuge radius or by using forward leaning impeller blades. The air is cooled by the heat exchanger and directed to an expander also rotating with the centrifuge. The air is expanded and adiabatically further cooled. The cold air exits the centrifuge through an axial outlet located at the second end of the centrifuge. | 01-03-2013 |
20130061617 | AIR CYCLE CONDENSER COLD INLET HEATING USING INTERNALLY FINNED HOT BARS - An environmental control system (ECS) includes an air cycle machine with an expansion turbine and a condenser having a cold air inlet connected to receive air from the expansion turbine. The condenser has hollow, internally finned hot bars positioned at the cold air inlet to prevent ice formation at the cold air inlet. | 03-14-2013 |
20130118190 | TURBO AIR COMPRESSOR - A method for operating an air-conditioning system for an aircraft including receiving an available power level from a control system of the aircraft, forwarding air from a first compressed air source to an aircraft cabin and forwarding air from a second compressed air source to the aircraft cabin if the available power level exceeds a threshold value. | 05-16-2013 |
20130118191 | TURBO AIR COMPRESSOR WITH PRESSURE RECOVERY - A method for operating an air-conditioning system for an aircraft includes compressing ambient air with a compressor driven by a shaft in communication with a motor and a turbine. The method includes forwarding the compressed air to an aircraft cabin for circulation and removing circulated compressed air from the aircraft cabin. The method also includes forwarding the circulated compressed air to the turbine, depressurizing the circulated compressed air in the turbine and capturing energy created by depressurizing the circulated compressed air. | 05-16-2013 |
20130160472 | AIRCRAFT AIR CONDITIONING SYSTEM COMPRISING A SEPARATE REFRIGERATION CYCLE - An air-conditioning system for an aircraft includes a compressed air branch for conveying externally supplied and pressurized air, preferably bleed air. Furthermore, a cooling circuit for conveying preferably liquid refrigerant is provided and extends through a ram air duct. The system also includes a first heat exchanger for the heat transfer between the compressed air branch and the cooling circuit, a compressed air turbine arranged in the compressed air branch and a cooling circuit compressor arranged in the cooling circuit and mechanically coupled to the compressed air turbine. The system can have a modular design and be positioned at optimal locations in the aircraft due to the separation of the compressed air branch and the cooling circuit. In this way, the length of hot compressed air ducts can be shortened. | 06-27-2013 |
20140190190 | Aircraft Air Conditioning System and Method of Operating an Aircraft Air Conditioning System - An aircraft air conditioning system comprising a compressor adapted to generate compressed process air, an air conditioning unit adapted to cool and expand compressed process air supplied to the air conditioning unit from the compressor, and an energy converter adapted to convert hydraulic energy into electric energy. The compressor is supplied with electric energy generated by the energy converter by converting hydraulic energy supplied to the energy converter. | 07-10-2014 |
20140366563 | ADAPTIVE TRANS-CRITICAL CO2 COOLING SYSTEMS FOR AEROSPACE APPLICATIONS - A cooling system includes a heat exchanger through which a refrigerant flows, and which rejects heat to a fluid, an evaporator, a first circuit having an expansion device, a second circuit having an expansion machine coupled to a compressor, and a set of valves arranged to direct the refrigerant through the first circuit, the second circuit, or both the first and second circuits based on ambient conditions. | 12-18-2014 |
20160153684 | Air-Cycle Environmental Control Systems and Methods for Automotive Applications | 06-02-2016 |
20180023763 | METHOD AND DEVICE FOR FILLING A HYDROGEN TANK | 01-25-2018 |