Matches 1 - 50 out of 190 1 2 3 4 >


Match Document Document Title
US20120043390 HEAT PUMP  
A heat pump including a boiler is disclosed. The heat pump may include a quick-hot-water-supply tank and the boiler, which may be operated selectively based on a temperature of external air or an...
US20080098760 Heat pump system and controls  
A heat pump system is disclosed that utilizes one or two compressors and multiple heat exchangers to provide forced air heating, radiant heating and/or water heating for an interior space. A...
US20110214444 HEAT PUMP WATER HEATER  
A heat pump water heater in which the number of components is small, a measure against drain pan freezing is realized with a simple structure, and a drain reservoir is difficult to be generated in...
US20120279241 HEAT PUMP CONTROL  
A control is provided that includes a sensor that provides an output indicative of a sensed temperature of a condenser coil of the heat pump, and a controller for controlling activation of at...
US20130269378 Energy Efficient Air Heating, Air Conditioning and Water Heating System  
An air heating, air conditioning and water heating system includes a multi-communicative valve unit, a compressor arranged for compressing the refrigerant in a state of superheated vapor, a...
US20060117778 Cooling/heating system and method for controlling the same  
A cooling/heating system is disclosed which includes a compressor, an indoor heat exchanger, an expansion device, and an outdoor heat exchanger which are connected in series via a refrigerant...
US20110079024 COMBINED HEAT EXCHANGE UNIT  
A heat exchange system for supplying air to a habitable space at a desired output condition includes a continuously variable mechanical cooler, an indirect evaporative cooler, an adiabatic cooler...
US20110120161 EXPANSION VALVE, HEAT PUMP TYPE REFRIGERATION CYCLE APPARATUS, AND AIR HANDLING UNIT  
A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a...
US20120102991 HEAT PUMP TYPE WATER HEATING APPARATUS  
A heat pump type water heating apparatus is provided that includes a refrigeration cycle circuit having a first refrigerant and water heat exchanger to perform a heat exchange between a first...
US20100326091 AUTOMATIC COLD AND HOT AIR CONDITIONER SYSTEM  
The various embodiments herein provide an air conditioner system for providing cold and warm air in cars and buildings. The air conditioner system includes a chamber, a plurality of input air...
US20070101735 HEAT PUMP APPARATUS USING EXPANDER  
A heat pump apparatus includes a compressor, a motor, an expander, a generator, and a variable-speed converter. The variable-speed converter is connected to the generator and converts alternating...
US20070137225 AIR CONDITIONER HAVING UNPEOPLED MAINTENANCE FUNCTION  
An air conditioner that is equipped with an outdoor unit and an indoor unit and can perform cooling operation and heating operation including a remote controller for setting an upper limit value...
US20140158783 HVAC Systems  
A system includes a heat pump configured to match a working fluid's temperature to a fluid temperature set-point, a fluid pump in fluid communication with the heat pump through the working fluid...
US20120285188 HEAT PUMP SYSTEM  
A heat pump system includes a refrigerant circuit and a controller. The refrigerant circuit has usage units connected to a heat source unit. The usage units have first usage-side heat exchangers...
US20060123809 Control method of an air conditioner indoor unit  
A control method of a multi-air conditioner in which a plurality of indoor units is connected to one outdoor unit and refrigerant flow amount is adjusted by electronic expansion valves comprises a...
US20080295531 METHOD TO CONTROL SLEEP OPERATION OF AIR CONDITIONER  
A method to control the sleep operation of an air conditioner is provided. The method includes determining whether or not a sleep operation is activated and sequentially performing a plurality of...
US20080184715 Bottle Cooler Defroster And Methods  
A bottle cooler system (20, 70, 100) includes a compressor (22), a first heat exchanger (24) and a second heat exchanger (28). In a cooling mode of operation, the second heat exchanger is...
US20060218948 Cooling and heating system  
There is disclosed a cooling and heating system in which a refrigerant is used in a supercritical state and in which cooling and heating capacity can be controlled so as to maximize a coefficient...
US20110192181 REFRIGERANT SYSTEM  
A refrigerant system is provided. The refrigerant system may use an electronic expansion valve that electronically controls an opening degree thereof, as a high-pressure valve and a low-pressure...
US20120180511 Energy System With A Heat Pump  
The invention provides a system for collection of thermal energy. The system comprises an energy collector, an energy reservoir, an energy collection medium enclosed in a loop allowing fluid flow...
US20130019622 AIR CONDITIONING APPARATUS  
A CPU 110 compares the extracted outside air temperature with a first low pressure saturation temperature. When the outside air temperature is lower than the first low pressure saturation...
US20110283726 HOT WATER SUPPLY DEVICE ASSOCIATED WITH HEAT PUMP AND METHOD FOR CONTROLLING THE SAME  
A hot water supply apparatus associated with a heat pump is disclosed herein. The hot water supply apparatus may include a main refrigerant circuit that includes a compressor, an indoor heat...
US20100281896 Evaporative Air Cooler With Multi Stages Cooling And Or Heating With Or Without Cooling Coil  
An outdoor air cooler with two stages includes a first stage for cooling and humidification with constant wet bulb temperature. The air cooler has a first stage pump circulating water over the...
US20140305150 AIR CONDITIONER AND METHOD FOR CONTROLLING THE SAME  
An air conditioner includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, a converting unit, a first injection module, and a second injection module. The first injection...
US20080083236 Method for controlling stop operation of air conditioner  
A method for controlling a stop operation of an air conditioner having a compressor, a four-way valve, an electronic expansion valve (EEV), an indoor fan and an outdoor fan includes the steps of...
US20150075196 REFRIGERATION CYCLE SYSTEM  
In a refrigeration cycle system, switching is allowed between a parallel operation mode and a series operation mode. In the parallel operation mode, a refrigerant, upon leaving a load side heat...
US20110289950 HOT WATER SUPPLY APPARATUS ASSOCIATED WITH HEAT PUMP  
A hot water supply apparatus associated with a heat pump is provided. In the hot water supply apparatus, refrigerant flowing through an evaporator and a compressor of a refrigerant cycle may...
US20050284161 Air conditioning system and method for controlling the same  
Air conditioning system including at least one room cooling/heating unit for cooling/heating a room selectively, at least one ventilating unit for ventilating a room selectively, at least one air...
US20150096320 HEAT PUMP DEVICE, AIR CONDITIONER, AND FREEZER  
A heat pump device includes: a compressor including a compression mechanism compressing a refrigerant and a motor driving the compression mechanism; an inverter unit applying a voltage for driving...
US20070056311 Heating and cooling apparatus  
A heating and cooling apparatus includes a compressor for pumping a heat medium through a tubing device, a primary heat exchanger coupled to the compressor, a control device coupled to the primary...
US20060230770 Modulating proportioning reversing valve  
A method of operating a reversible heat pump system includes steps of sensing an outdoor air temperature with a first sensor and sensing at least one condition of an outdoor heat exchanger coil...
US20150176848 AIR CONDITIONING SYSTEM AND METHOD OF CONTROLLING AN AIR CONDITIONING SYSTEM  
An air conditioning system and a method of controlling an air conditioner system are provided. The air conditioning system may include an outdoor device disposed in an outdoor space, the outdoor...
US20140223939 CENTRALIZED MULTI-FUNCTION HEAT EXCHANGE SYSTEM  
A centralized heat exchange system for controlling a plurality of heat exchangers in heat pump cycle includes a plurality of heat exchanging units; a compressor; a network of refrigerant piping...
US20150034293 AIR-CONDITIONING APPARATUS  
An air-conditioning apparatus according to the present invention includes at least indoor heat exchangers. In response to a request to increase heat exchange performance from the indoor heat...
US20110192182 HUMIDITY CONTROL APPARATUS  
A humidity control apparatus includes a refrigerant circuit (50) which has a compressor (53), a main electric-operated expansion valve (55), and a first adsorption heat exchanger (51) and a second...
US20120151949 AIR CONDITIONING DEVICE  
To provide an air-conditioning apparatus capable of achieving energy saving. An air-conditioning apparatus controls first heat medium flow switching devices and second heat medium flow switching...
US20150219371 REFRIGERATION CYCLE APPARATUS  
A compressor, a water-refrigerant heat exchanger, pressure reducing devices which reduce the pressure of a refrigerant, an air-side heat exchanger, an outdoor fan which delivers air to the...
US20130219940 AIR-CONDITIONING APPARATUS  
An air-conditioning apparatus controls a heat medium passage reversing device so that, when it detects a heat medium flowing through a heat medium flow passage of the heat exchanger will not be...
US20140116074 HEAT PUMP AND CONTROL METHOD THEREOF  
A heat pump and a control method thereof, the control method of the heat pump which heats a heated space through heat exchange between outdoor air and a refrigerant and heat exchange between the...
US20070068178 HEAT PUMP  
A heat pump of the present invention has a compressor and an expander coupled with a common axis of rotation, a first throttling device disposed in a circulation passage of refrigerant, and a...
US20110296855 Thermal Management System with Dual Mode Coolant Loops  
A dual mode, thermal management system for use in a vehicle is provided. At a minimum, the system includes a first coolant loop in thermal communication with a battery system, a second coolant...
US20070039336 Compressor with vapor injection system  
A heat pump system includes a first heat exchanger, a second heat exchanger in fluid communication with the first heat exchanger, a scroll compressor in fluid communication with each of the first...
US20110138829 Heat Pump System  
In a conventional heat pump system which has a space heat exchanger, a motor (717) driven compressor (106), a refrigerant, a suction line (104) for feeding refrigerant to the compressor, and a...
US20130312442 AIR CONDITIONING DEVICE FOR VEHICLE  
A vehicle air conditioning apparatus is provided to prevent a frost from being formed on a heat exchanger under the condition that the outdoor temperature is low. During a heating and...
US20120255319 REFRIGERANT CYCLE DEVICE  
A refrigerant cycle device includes a first refrigerant passage for guiding refrigerant from a refrigerant radiator to an inlet side of an outdoor heat exchanger, a first throttle part capable of...
US20110283725 HOT WATER SUPPLY APPARATUS ASSOCIATED WITH HEAT PUMP  
A hot water supply apparatus associated with a heat pump is provided. The hot water supply apparatus performs a hot water supply operation using a high temperature refrigerant that has been...
US20110167850 Air conditioner for vehicle  
In a refrigerant cycle device for a vehicle air conditioner, a refrigerant flow switching device is configured to switch one of a cooling mode, a first heating mode and a second heating mode. In...
US20150219342 AIR CONDITIONING SYSTEM  
An air conditioning system includes a heat pump unit including a radiator usable with a refrigerant, a gas furnace unit including a heating section arranged to heat passing air, a blower arranged...
US20110259025 HEAT PUMP TYPE SPEED HEATING APPARATUS  
A heat pump type speed heating apparatus is provided that may include a cooling cycle circuit (including a compressor, an outdoor heat exchanger, an expansion apparatus, and an indoor heat...
US20140096552 EXPANSION VALVE FOR A VAPOUR COMPRESSION SYSTEM WITH REVERSIBLE FLUID FLOW  
An expansion valve (16) for a vapour compression system (1) and a vapour compression system (1) are disclosed. The expansion valve (16) comprises a first valve member (17), a second valve member...

Matches 1 - 50 out of 190 1 2 3 4 >