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7614249 Multi-range cross defrosting heat pump system and humidity control system  
The present invention provides an air-condition heat pump system and two-stage defrosting control method for continuous operation under an environment temperature range from 20 degree to negative...
7603872 Heat-pump hot water supply apparatus  
A heat-pump hot water supply apparatus, for dissolving problems of delaying in heating rise-up time when re-starting, and ill influences upon starting characteristics, due to liquid refrigerant...
7587909 Multi type air-conditioner and control method thereof  
A multi type air conditioner comprises: an outdoor unit including an outdoor heat exchanger heat-exchanged with the outdoor air, a compressor compressing a refrigerant, and a first four-way valve...
7562699 Reversing circulation for heating and cooling conduits  
A fluid circulating apparatus for warming or cooling a surface includes a pressurized fluid source operative to circulate fluid through a conduit such that a supply fluid moves from a supply port...
7493775 Air conditioner  
An air conditioning apparatus has plural indoor units having: plural heat exchangers; and flow controllers respectively corresponding to the heat exchangers. In each of the indoor units, one heat...
7491037 Reversible valving system for use in pumps and compressing devices  
A valving system for reversing flow in a compressing device. The reversible compressor includes a reversible drive motor for reversing a rotational direction of a rotor, a first and second port...
7481073 System and apparatus for delivering expanded refrigerant to an air/gas dryer  
The present invention relates to a method and apparatus for effectively reducing/eliminating oscillation of over and under shoot of superheat and refrigerant feed in an evaporator of compressed...
7464563 Air-conditioner having a dual-refrigerant cycle  
An air-conditioner having a dual-refrigerant cycle includes a primary refrigerant circuit heat-exchanged with outdoor air; a secondary refrigerant circuit heat-exchanged with indoor air to perform...
7448229 Heat exchanger of air conditioner  
A heat exchanger of an air conditioner comprising: at least one or more refrigerant inlets for connecting a compressor for compressing refrigerant to an expansion device for expanding condensed...
7412838 Heat pump using CO2 as refrigerant and method of operation thereof  
A heat pump employing CO 2 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...
7287581 Full function vehicle HVAC/PTC thermal system  
The integrated automotive HVAC/PTC system of the present invention includes a bi-fluidic heat exchanger between an air conditioning subsystem and a heating subsystem which enables heat extracted...
7287394 Refrigerant heat pump with reheat circuit  
A refrigerant heat pump system is operable in both heating and cooling modes. A reheat circuit is integrated into the system schematic to provide improved control over temperature and humidity and...
7275384 Heat pump with reheat circuit  
A refrigerant heat pump system is operable in both heating and cooling modes. A reheat circuit is integrated into the system schematic to provide improved control over temperature and humidity and...
7251950 Heating/cooling system  
There is provided a heating/cooling system capable of reducing power consumption. The heating/cooling system has a receiving room capable of using hot air and cold air in a switching manner, and...
7216503 Combined cooling plant/heat pump circuit  
The invention relates to a combined plant/heat pump circuit with a compressor, a multi-way valve arranged downstream, an external heat exchanger as well as an interior heat exchanger and an...
7185506 Reversible vapor compression system  
Reversible vapor compression system including a compressor ( 1 ), an interior heat exchanger ( 2 ), an expansion device ( 6 ) and an exterior heat exchanger ( 3 ) connected by means of conduits in...
7160641 Methods to cool a fuel cell and if desired heat a hybrid bed simultaneously  
A technique for rejecting heat from a fuel cell stack. Heated stack coolant from the fuel cell stack is directed to a heat pump module where it is compressed to raise its temperature. The heated...
7140427 Vehicle air conditioner with defrosting operation in exterior heat exchanger  
In a vehicle air conditioner for heating a passenger compartment by a heater core and a heat pump cycle, when operation of a heat pump cycle is switched from a defrosting operation to a heating...
7124599 Absorption pipe structure of compressor  
An absorption pipe structure of a compressor, capable of reducing vibration of the absorption pipe and making the machinery room small-sized, by making short the length of the absorption pipe...
7121106 Pipe structure for outdoor unit of air conditioner  
Provided is a pipe structure for an outdoor unit of an air conditioner, in which a length of an induction pipe of a compressor mounted in the outdoor unit is shorter than a connection pipe in the...
7100384 System and method for cooling or heating  
The invention relates to a system for cooling and heating, having a first heat exchanger ( 10 ) for outputting heat to and extracting it from a heat reservoir ( 12 ); a second heat exchanger ( 14 )...
7080524 Alternate sub-surface and optionally accessible direct expansion refrigerant flow regulating device  
A sub-surface direct expansion geothermal heat exchange unit, which can be placed in sub-surface ground and/or water, consisting of at least one smaller interior diameter refrigerant liquid/fluid...
7080520 Air conditioning system  
The invention is based on a climate control system for a vehicle that is driven by an internal combustion engine ( 10 ), having a heating heat exchanger ( 24 ) which is connected to a coolant loop...
7028502 Refrigeration equipment  
In a refrigerating apparatus comprising a plurality of application-side heat exchangers ( 41 ), ( 45, 51 ) for air-conditioning and for cold-storage/freezing, it is configured so as to be capable...
7013666 Multi-air conditioner and operation method thereof  
Disclosed is a multi-air conditioner in which heating and cooling operations are performed at the same time, the number of connection pipes connecting outdoor unit and distributor is simplified to...
6997010 Regenerative heat pump system  
The present invention provides a regenerative heat pump system including a heat pump cycle, first storage vessel for storing a heat storage material, heat exchange device between first refrigerant...
6966197 Air conditioner with dehumidifying and heating operation  
When a dehumidifying and heating operation is set in an air conditioner, refrigerant is circulated from a compressor to the compressor through a first exterior heat exchanger, a decompression...
6952933 Multi-type air conditioner  
Multi-type air conditioner including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor,...
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...
6941761 Thermoelectric heat lifting application  
A compressor having a housing with a compression mechanism mounted therein. A suction fluid passageway is located in the housing through which the compression mechanism receives refrigerant fluid....
6925832 High-low pressure dome type compressor  
Formed in a scroll type compression mechanism is a connection passageway with a discharge opening through which refrigerant compressed by the compression mechanism flows out into a clearance space...
6918264 Multi-type air conditioner  
Multi-type air conditioner including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor, an...
6915656 Heat pump system  
A method and system for heating a space includes circulating refrigerant in a closed loop system having a first heat exchanger and a second heat exchanger. The circulating step includes...
6910345 Air-conditioning unit with additional heat transfer unit in the refrigerant circuit  
The invention relates to an air-conditioning unit ( 10 ) for a motor vehicle with a heating heat transfer unit ( 28 ) connected to a coolant circuit ( 42 ) in an internal combustion engine and...
6898944 Air conditioner  
In the air conditioner of the present invention, both the normal cooling mode operation, in which refrigerant discharged from the compressor 1 is made to flow in the condenser 2 , and the...
6883344 Air-conditioner with both cooling and warming functions  
The invention relates to a novel structured air-conditioner with both cooling and warming functions, comprising a compressor, an out-door heat exchanger, an in-door heat exchanger and a four-way...
6883588 Spacecraft radiator system using a heat pump  
Heat dissipating apparatus or system for dissipating heat generated by a payload on a spacecraft having a plurality of surfaces. The system includes at least one radiator-condenser coupled to one...
6883345 Multi-type air conditioner and method for operating the same  
Multi-type air conditioner including an outdoor unit installed outside of a room having a compressor and an outdoor unit mounted therein, a plurality of indoor units each installed in a room having...
6883342 Multiform gas heat pump type air conditioning system  
There is provided a multiform gas heat pump type of air conditioning system having: a plurality of indoor units that are each provided with an indoor heat exchanger and that perform a heat exchange...
6880356 Simultaneous heating and cooling operation type multi-air conditioner  
Disclosed is a multi-air conditioner comprising: an outdoor unit installed at an outdoor location and exchanging heat with an outdoor air, a plurality of indoor units installed at respective indoor...
6880357 Refrigeration cycle apparatus  
It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A...
6807821 Compressor with internal accumulator for use in split compressor  
A rotary compressor having a housing with a motor and an internal accumulator located on the low pressure side and an oil sump located on the high pressure side. A sealing means positioned within...
6763673 Remote distributor with integrated check valve  
At least one bypass assembly for use in a heating-refrigeration system having a distributor body with a first and second orifice, an inner chamber and a plurality of fluid passages integrated...
6751976 Heat pump equipment  
Heat pump equipment comprising at least three heat exchangers, one of which is intended to be located in an enclosed region and the other two of which are intended to be located outside the...
6735973 Multi-type air conditioner  
Multi-type air conditioner including a plurality of distributors each including a gas-liquid separator for separating refrigerant from the outdoor unit into gas refrigerant and liquid refrigerant,...
6729155 Refrigerating and heating device  
A refrigerating and heat device has a compressor, a four-way valve, three heat exchangers, a switching component, and a plurality of pipes connecting these elements. The refrigerating and heating...
6701721 Stirling engine driven heat pump with fluid interconnection  
A heat pumping machine, such as used for home heating and cooling, has a free piston Stirling engine driving a vapor compression heat pump. The engine is mechanically linked to the compressor...
6684651 Channel selector valve and method of driving the same, compressor with the channel selector valve, and device for controlling refrigerating cycle  
Upon a selector operation of a valve such as a four-way selector valve provided in a refrigerating cycle for selecting a channel of fluid, prevention of environmental pollution and energy saving...
6681593 Thermal energy storage system  
A FreeTherm thermal energy storage system includes an ice-water shallow pool used for storing and extracting thermal energy cyclically, by thawing the ice and freezing water intra-seasonally. A...
6679321 Heat pump system  
A heat pump system using air as its heat source is disclosed. In this system, the refrigeration circuit consists of both a main refrigerant line and a refrigerant suction line. A heat accumulator,...
Matches 1 - 50 out of 295 1 2 3 4 5 6 >