Patent application number | Description | Published |
20110168368 | HEAT EXCHANGER - A heat exchanger is provided which may include a first heat exchange tube in a pipe shape, including a first fluid inlet, into which a first fluid may be introduced and flow, and a first fluid outlet, through which the first fluid may be discharged; a second heat exchange tube that passes through the first heat exchange tube, including a second fluid inlet, into which a second fluid may be introduced and flow, and a second fluid outlet, through which the second fluid may be discharged; and a third heat exchange tube that includes a third fluid inlet, into which the second fluid discharged through the second fluid outlet may be introduced and flow, and a third fluid outlet, through which the second fluid may be discharged, the third fluid outlet enclosing an external surface of the first heat exchange tube. | 07-14-2011 |
20110168369 | HEAT EXCHANGER - A heat exchanger is provided which may include a first pipe, into which a first fluid may be introduced and flow, and a second pipe disposed in the first pipe, into which a second fluid may be introduced and flow. The first and second pipes may contact each other, to prevent the second pipe from vibrating. | 07-14-2011 |
20110174469 | DOUBLE-PIPE HEAT EXCHANGER - A double-pipe heat exchanger is provided. The double-pipe heat exchanger may include a first heat exchange tube having a first hollow portion, and a second heat exchange tube disposed inside the first heat exchange tube, so as to be co-axial with the first heat exchange tube and having a spiral part in which multiple ridges and grooves are formed at an inner surface of the spiral part. | 07-21-2011 |
20120255323 | AIR CONDITIONER - An air conditioner is provided. The air conditioner may include a compressor that compresses a refrigerant, an outdoor heat-exchanger that heat-exchanges with the refrigerant discharged from the compressor according to a first operation mode, an indoor heat-exchanger that heat-exchanges with the refrigerant discharged from the compressor according to a second operation mode, and an expander that decompresses the refrigerant passing through the outdoor heat-exchanger or the indoor heat-exchanger. The expander may include a first decompression portion disposed at an outlet side or an inlet side of the outdoor heat-exchanger, the first decompression portion having a first inner diameter, and a second decompression portion connected to the first decompression portion in series, the second decompression portion having a second inner diameter greater than the first inner diameter. | 10-11-2012 |
20130240176 | HEAT PUMP - A heat pump is provided. The heat pump that may include an outdoor heat exchanger, in which a refrigerant may be condensed by being heat-exchanged with outdoor air in a cooling operation, and evaporated by being heat-exchanged with the outdoor air in a heating operation, and an outdoor fan that allows the outdoor air to be moved to the outdoor heat exchanger. The outdoor heat exchanger may include a front-row heat exchange device, through which the outdoor air moved by the outdoor fan may pass, and a rear-row heat exchange device, through which the outdoor air having passed through the front-row heat exchange device may pass; a water-repellent coating layer formed on a surface of the front-row heat exchange device, which the outdoor air contacts; and a hydrophilic coating layer formed on a surface of the rear-row heat exchange device, which the outdoor air contacts. Accordingly, the outdoor heat exchanger may have a longer frost formation time in comparison to a hydrophilic coated double-row heat exchanger, and a high heat exchange performance and lower pressure loss in comparison to a water-repellent coated heat exchanger. | 09-19-2013 |
20140034271 | HEAT EXCHANGER - Provided is a heat exchanger. The heat exchanger includes a refrigerant tube through which a refrigerant flows and a fin having at least two tube through holes in which the refrigerant tube is inserted. The fin includes a fin body, a plurality of louvers protruding from a surface of the fin body, a plane part defined between the plurality of louvers, the plane part having a flat surface, and a guide part disposed on at least one side of the plane part to guide a flow of air or discharge of defrosting water. | 02-06-2014 |
20140034272 | HEAT EXCHANGER - Provided is a heat exchanger. The heat exchanger includes a refrigerant tube through which a refrigerant flows and a fin having at least two tube through holes in which the refrigerant tube is inserted. The fin includes a fin body, a plurality of flow guide protruding from one surface of the fin body, the plurality of flow guides being spaced apart from each other, and a plane part partitioning one flow guide and the other flow guide of the plurality of flow guides, the plane part having a flat surface. | 02-06-2014 |
20140158333 | HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME - A heat exchanger and a method of manufacturing the same are provided. With the method, a tube may be inserted into a through hole formed in at least one fin coated with a filler metal, and the tube and a fin collar of the at least one fin may be joined through the filler metal by a brazing processing. A flange may not be formed on or at a top of the at least one fin collar, which protrudes vertically from a central longitudinal plane of the at least one fin. The tube may be made of aluminum (Al), and an interval between an outer circumferential surface of the tube and an inner circumferential surface of the fin collar of the at least one fin may be approximately 0.1 mm or less. Accordingly, contact resistance occurring when fabricating a fin-tube heat exchanger using a mechanical tube expansion method may be reduced, and heat transfer performance of the heat exchanger may be improved because grooves formed within the tube may not be deformed. | 06-12-2014 |
20140284031 | HEAT EXCHANGER - Provided is heat exchanger. The heat exchanger includes a plurality of first tubes disposed to form a first row, a plurality of second tubes disposed on a side of the plurality of first tubes to form a second row, and a fin in which the plurality of first tubes and the plurality of second tubes are inserted. The fin comprises a heat separation part for preventing heat conduction from occurring between the first tubes and the second tubes. | 09-25-2014 |