Class / Patent application number | Description | Number of patent applications / Date published |
062324500 | With atmospheric condensate removal or prevention | 10 |
20090205354 | FROSTING DEHUMIDIFIER WITH ENHANCED DEFROST - A dehumidifier apparatus comprises a housing having an air inlet for receiving incoming air, an air outlet spaced therefrom for allowing the air to exit from the housing, the housing being configured to provide an interior air passageway connecting the air inlet to the air outlet; an air mover mounted within the air passageway for moving the air through the air passageway from the air inlet to the air outlet; a compressor mounted in the housing for compressing a refrigerant; an evaporator located within the air passageway for evaporating the refrigerant during a dehumidifying cycle, and thereby cooling air flowing through the evaporator and causing water in the air to condense on a surface of the evaporator; a condenser for condensing the refrigerant during the dehumidifier cycle, the condenser being located in the air passageway downstream of the evaporator in series with the evaporator; refrigerant flow lines configured to allow for a flow of the refrigerant between the compressor, the condenser, and the evaporator; and a defrosting cycle system for performing a defrosting cycle during a frosting condition of the evaporator, wherein during the defrosting cycle the flow of the refrigerant is reversed, causing the evaporator to condense the refrigerant and the condenser to evaporate the refrigerant. The compressor and the air mover are configured to run continuously during the dehumidifying cycle and the defrosting cycle. | 08-20-2009 |
20100077787 | Heat pump drying machine - An heat pump drying machine has a normal dry mode (e.g., compression ratio is equal to or greater than 3) for operating a compressor at a predetermined dry operation frequency and an energy saving dry mode (e.g., compression ratio is equal to or greater than 2.3 and is less than 3) for operating the compressor at an energy saving operation frequency that is lower than the dry operation frequency. A control device is provided to control an operation frequency of the compressor | 04-01-2010 |
20100251741 | REFRIGERATION APPARATUS - A refrigeration apparatus uses a refrigerant that operates in a supercritical range. The refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, a switching mechanism, an intercooler which functions as a cooler of refrigerant discharged from a first-stage compression element of the compression mechanism and drawn into a second-stage compression element of the compression mechanism, and an intercooler bypass tube. The switching mechanism is configured to switch between cooling and heating operation states in which refrigerant is circulated differently. When a defrosting operation for defrosting the heat source-side heat exchanger is performed, refrigerant flows to the heat source-side heat exchanger and the intercooler. After defrosting of the intercooler is detected as being complete, the intercooler bypass tube is used to ensure that the refrigerant does not flow to the intercooler. | 10-07-2010 |
20110030407 | REFRIGERATION APPARATUS - A refrigeration apparatus uses supercritical range refrigerant, and includes a multi-stage compression mechanism, a heat source-side heat exchanger, a usage-side heat exchanger, a switching mechanism switchable between cooling and heating operation states, and a second-stage injection tube. The second-stage injection tube branches off refrigerant, which has radiated heat in the heat source-side heat exchanger or the usage-side heat exchanger, and returns the refrigerant to the second-stage compression element. Refrigerant is prevented from returning to the second-stage compression element through the second-stage injection tube at least during a beginning of a reverse cycle defrosting operation, which is performed to defrost the heat source-side heat exchanger by switching the switching mechanism to the cooling operation state. | 02-10-2011 |
20110041541 | Air Conditioner - An air conditioner is provided. The air conditioner includes: an outdoor heat exchange unit in which a plurality of refrigerant tubes are disposed to be separated in a plurality of columns in a vertical direction to exchange heat of outdoor air and a refrigerant; a first refrigerant distribution device having branch pipes connected to a plurality of refrigerant tubes, respectively, of an upper part among the plurality of refrigerant tubes; a second refrigerant distribution device having branch pipes connected to a plurality of refrigerant tubes, respectively, of a lower part among the plurality of refrigerant tubes; and a communication pipe for communicating one of the branch pipes of the first refrigerant distribution device and one of the branch pipes of the second refrigerant distribution device. Therefore, when performing divisional defrost of an upper part and divisional defrost of a lower part of the outdoor heat exchange unit, the remaining frost of a central portion of the outdoor heat exchange unit can be also removed. | 02-24-2011 |
20110138839 | WATER CIRCULATION APPARATUS ASSOCIATED WITH REFRIGERANT SYSTEM - A water circulation apparatus performs a variety of heat exchange operations for various refrigerants. The apparatus may be applied for a first refrigerant system having a first compressor and first heat-exchanger and a second refrigerant system having a second compressor. An intermediate heat-exchanger performs heat-exchange operations between first and second refrigerants flowing in respective ones of the systems. A water circulator is then used to circulate water which is heat-exchanged with the second refrigerant while the water is circulated. The apparatus performs these functions for operating modes which include a heating mode and a cooling mode. Defrosting operations are also performed for one or more of the heat exchangers. | 06-16-2011 |
20130118200 | Heating, Ventilation and/or Air Conditioning Loop and Heating, Ventilation and/or Air Conditioning Equipment Including Such Heating, Ventilation and/or Air Conditioning Loop - The invention relates to a heating, ventilation and/or air conditioning loop ( | 05-16-2013 |
20130205823 | AIR CONDITIONER - An air conditioner performs heating operation by driving a compressor ( | 08-15-2013 |
20140318170 | HEAT PUMP CYCLE - A heat pump cycle includes a refrigerant circuit and a coolant circuit. A first heat exchanger and a second heat exchanger are disposed between the refrigerant circuit and the coolant circuit. The first heat exchanger includes an exterior heat exchanger that functions as an evaporator in a heating operation, and a radiator for radiating heat of a coolant. The second heat exchanger transmits a heat of high-pressure refrigerant to the coolant in the heating operation. A temperature of refrigerant within the second heat exchanger is higher than a temperature of refrigerant within the first heat exchanger. The heat obtained from the second heat exchanger is supplied to the first heat exchanger through the coolant. Further, the heat obtained from the second heat exchanger is stored in the coolant. In defrosting operation, the coolant that has stored the heat therein is supplied to the first heat exchanger. | 10-30-2014 |
20150075203 | OUTDOOR UNIT AND AIR-CONDITIONING APPARATUS - An outdoor unit includes a casing having a bottom plate and is configured such that at least a part thereof is made of metal, a compressor provided within the casing to compress a flammable refrigerant, an outdoor heat exchanger provided within the casing to exchange heat between the refrigerant and outside air, and an electric heater provided on an upper surface of the bottom plate. The power consumption of the electric heater is 250 W or less. | 03-19-2015 |