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7575001 |
Solar and heat pump powered electric forced hot air hydronic furnace
A furnace and method using a heat pump for providing domestic hot water and forced hot or cooled air utilizing heat pump achieved efficiency levels in an on-demand and unlimited domestic hot water,...
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7530390 |
Air conditioner for a motor vehicle
The invention relates to an air conditioner for a motor vehicle, comprising a coolant circuit ( 1 ) that is provided with several heat-transferring devices through which a coolant can be directed,...
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7520320 |
Automotive air conditioning system
An automotive air conditioning system has a primary hot water circuit 11 located on a side where a vehicle installed heat generator 10 is located and a secondary hot water circuit 13 which...
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7487821 |
Fireplace augmented chimney heat exchange system
A heat pump circuit is installed into the inner cavity of a chimney venting the combustion gases of a burner servicing a dwelling with the exterior heat pump coil mounted in an annular gap formed...
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7380588 |
Heat pump control system and method of operating to provide automatic backup heating modes
A heat pump type heating and air conditioning system includes a gas furnace or other auxiliary heat source and a thermostat and controller associated with the heat pump and the auxiliary heat...
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7296426 |
Interactive control system for an HVAC system
An interactive system for controlling the operation of an HVAC system is provide that comprises a thermostat for initiating the operation of the HVAC system in either a full capacity mode of...
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7234646 |
Heat pump hot-water supply system
A hot-water supply system heats water through heat exchange between high-temperature refrigerant of a heat pump circuit and water of a water circulating circuit. The system is an instantaneous...
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RE39625 |
Boosted air source heat pump
A boosted source heat pump (BSHP) is presented having a primary compressor, a booster compressor, an economizer, and a lubricant management system. At least the primary compressor is a twin-single...
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7207379 |
Automotive air conditioning system
An automotive air conditioning system comprising a main heating unit 4 for heating air passing through an air conditioning duct 2 with cooling water of an engine E and a refrigeration cycle...
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7191610 |
Energy collecting system and method of operating the same
In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a...
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7182129 |
Device for heating and/or air-conditioning the passenger compartment of a motor vehicle
A device for air-conditioning a motor vehicle has an engine-cooling loop, a heat-pump loop containing a compressor, an evaporator as cold source of the heat pump and a condenser as hot source of...
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7155922 |
Energy efficient heat pump systems for water heating and air conditioning
A heat pump system for providing water heating and air conditioning, comprising one or more compressors for circulating a refrigerant in the system, a hot water tank having a heat exchanger for...
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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...
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7066729 |
Gas powered heat delivery system
A gas powered heat delivery system, comprising a fuel gas supply, a catalytic heater connected to the fuel gas supply; a tank containing fluid, the tank being disposed to receive heat from the...
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7063137 |
Heat pump with secondary loop air-conditioning system
A chiller-condenser is disposed downstream of a condenser and a chiller-evaporator is disposed downstream of the chiller-condenser. A main three-way valve is disposed between the compressor and the...
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7055590 |
Air conditioning apparatus for vehicle
An air conditioning apparatus includes a valve for selectively introducing the coolant discharged from a compressor to either a flow path for a water-coolant heat exchanger or another flow path to...
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7048044 |
Heat control system
There are provided a water-refrigerant heat exchanger 30 for exchanging heat between refrigerant discharged from a compressor 21 and engine-cooling water circulating an engine-cooling water...
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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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7021073 |
Heat pump hot water supply system of hot water storage type
When heating up the water in the lower inner part of a hot water tank by a heat pump unit, a control unit stops the heat-up operation while leaving the hot water in an amount corresponding to the...
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6990830 |
System and method for supplying consumers with heat energy or with cooling energy
A system and method supplies users with heat energy or cooling energy via a carrier medium. At least one source of heat energy or chilling energy has an output line that is connected to the input...
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6962150 |
Pool heating system
A modular swimming pool water heating system including a first casing for mounting in an attic of a building, a heat exchange unit removably mounted in said first casing, an opening in said first...
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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...
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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...
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6913067 |
Vehicle conditioning system
Vehicle air-conditioning system, in particular CO 2 air conditioner, the refrigerant cycle of which comprises the following components: a compressor, a refrigerant cooler, an internal heat...
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6886626 |
Chimney heat exchange system
A heat pump circuit is installed into the inner cavity of a chimney servicing a dwelling with the exterior heat pump coil mounted in an annular gap formed around the upper chimney end. A fan driven...
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6874693 |
Method and apparatus for controlling a multi-source heating system
The present invention is directed at methods and apparatus for controlling multi-source heating systems. The multi-source heating systems of the present invention may include two or more heat...
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6810952 |
Vehicle air-conditioning device including a multi-purpose heat exchanger
A refrigerant-fluid circuit has a compressor, a condenser serving as heat sink and a first evaporator serving as cold source. The circuit also has a second evaporator and the refrigerant fluid is...
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6808119 |
Heat pump air conditioning system comprising additional heater and method for operating the same
Disclosed are a heat pump air conditioning system comprising an additional heater and a method for operating the same, in which the additional heater is driven during a full activation standby time...
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6775999 |
Solar reflector for heat pump evaporator
A solar reflector for an evaporator in a heat pump system. The evaporator has heat transfer plates and is located in an outdoor environment. The solar reflector has a curved surface configured to...
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6769481 |
Outdoor heat exchanger unit, outdoor unit, and gas heat pump type air conditioner
An object of the present invention is to provide an outdoor heat exchanger unit which is hardly effected adverse effects of the gas engine waste heat during the cooling operation and which can...
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6735969 |
Gas heat pump type air conditioning device, engine-coolant-water heating device, and operating method for gas heat pump type air conditioning device
In order to enhance air heating capacity during low outdoor air temperature, a gas heat pump type air conditioning device comprises a compression device having a gas engine driving source and...
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6729390 |
Control for heat pump with auxiliary heat source
A method of controlling a heating system including at least a first stage heat pump and a second stage auxiliary heater, and a control that implements the method. The control shuts off the first...
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6725679 |
Vehicle air conditioner with defrosting operation of exterior heat exchanger
In a vehicle air conditioner with a heat pump cycle having an interior heat exchanger and an exterior heat exchanger, when a frosting on a surface of the exterior heat exchanger is determined and...
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6722576 |
Method for operating air conditioner in warming mode
Disclosed is a method for operating an air conditioner in a warming mode, including the 100% operation performing step of operating/stopping all of compressors, the load determining step of...
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6715540 |
Air-conditioning apparatus for vehicle
The air heating capability of an indoor heat exchanger is limited to set the temperature of the indoor heat exchanger to a first predetermined temperature Tel or lower during heating. Thereby,...
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6691526 |
Method and apparatus for heating and cooling of buildings
This invention relates to a method and apparatus for energy effective regulation of temperature and ventilation of one or more ventilation units of buildings, where one or more heat-pumps are used...
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6679320 |
Vehicle air conditioning circuit using a refrigerant fluid in the supercritical state
Refrigerant fluid such as CO 2 , compressed to the supercritical pressure by a compressor, is delivered selectively through a three-way valve, either into a branch of the circuit containing a...
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6668572 |
Air conditioner having hot/cold water producing device
An air conditioner including a compressor compressing a refrigerant to produce a high temperature gaseous refrigerant, a hot water producing device producing hot water by performing a heat...
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6662864 |
Air-conditioning system with air-conditioning and heat-pump mode
An air-conditioning system is designed at least for an air-conditioning mode for cooling a thermal control medium ( 13 ) and a heat-pump mode for heating the thermal control medium. The system...
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6640889 |
Dual loop heat and air conditioning system
A vehicle heating and cooling system having a first coolant loop selectively connecting an engine cooling system with a heater core or a first coolant/refrigerant heat exchanger, a second coolant...
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6604576 |
Automotive air conditioning system
An air conditioning system for a vehicle has a first cycle including a compressor, a first condenser, a second condenser, a liquid tank, an expansion valve and an evaporator which are connected...
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6601773 |
Heat pump type hot water supply apparatus
A heat pump type hot water supply apparatus ( 10 ) for heating water by refrigerant heat and stocking the hot water thus achieved including: a heat pump unit ( 11 ) having a refrigerant circuit...
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6598671 |
Hybrid heating system and method for vehicles
An apparatus for heating the interior compartment of a vehicle, the apparatus has a primary heating system, a secondary heating system and an operating system. The primary heating system receives...
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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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6560978 |
Transport temperature control system having an increased heating capacity and a method of providing the same
A temperature control system having an increased heating performance. The system includes a compressor adapted to compress a fluid, a heat exchanger coupled to the compressor such that compressed...
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6543531 |
Device and method for heating and cooling a compartment of a motor vehicle
A device and a method are provided for heating and cooling a compartment of a motor vehicle powered by an internal combustion engine. The device has a coolant circuit with a compressor, an ambient...
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6536677 |
Automation and control of solar air conditioning systems
A solar powered air conditioning system includes an absorption machine coupled to three primary loops. A heat loop provides energy to the absorption machine. A cooling tower loop exhausts heat from...
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6471136 |
Biosensors for monitoring air conditioning and refrigeration processes
A biosensor 10 provides for real time monitoring a selected aspect of an air conditioning or a refrigeration process and system. The biosensor 10 includes a biocomponent element 20 carrying a...
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6422308 |
Heat pump type air conditioner for vehicle
A heat pump type air conditioner for a vehicle has a refrigeration cycle constituted by a compressor, an external heat exchanger, a refrigerant valve unit and an internal heat exchanger unit. The...
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6357246 |
Heat pump type air conditioning apparatus
A heat pump type air conditioning apparatus is disclosed. The air conditioning apparatus comprises a heat pump and a heat piping. The heat pump includes a compressor, a four-way valve, an indoor...
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