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| Number | Title | Issue Date |
| 8033018 | Method for manufacturing tube and fin heat exchanger with reduced tube diameter According to a preferred embodiment, an improved method and apparatus for manufacturing tube and fin heat exchangers that includes a step for reducing the outer diameter of stock tubing to a value well below nominal prior to bending the tubing into hairpins. The red... | 10/11/2011 |
| 8020298 | Method of fabricating a heat exchanger with angled secondary fins extending from primary fins A method of fabricating a heat exchanger which includes: obtaining multiple coolant-carrying conduit sections, each having a non-circular cross-section, and first and second main surfaces; providing multiple primary folded fins secured to the conduit sections. Each ... | 09/20/2011 |
| 7716829 | Indirect evaporative cooling heat exchanger A heat exchanger including a header having a plurality of header openings with rigid tubes that may be made of plastic are inserted in the openings. The tubes are sealed to the header to prevent leakage between the header and the tubes to prevent water and air leaka... | 05/18/2010 |
| 7352572 | Fire block module The fire block module includes a number of rectangular plate strips, arranged vertically and parallel to each other to form a grid layer. The grid layer is arranged horizontally in respect of the vertical direction of flame propagation occurring in the event of a fi... | 04/01/2008 |
| 7328509 | Method of operating a weaving mechanism to insert a spacer between the tubes of a heat exchanger A weaving apparatus used to separate the tubes of a heat exchanger so that spacers that hold the tubes apart can be inserted between the tubes to increase thermal efficiency. The weaving apparatus includes a frame assembly and a weaving mechanism contained within th... | 02/12/2008 |
| 7278209 | Method for manufacturing heat sink for use in heat sink fan A method for manufacturing a heat sink for use in a heat sink fan is provided. A heat-sink base portion defining a central axis and a circumferential surface is formed. A plurality of heat-radiating fins is formed on the circumferential surface of the base portion. ... | 10/09/2007 |
| 7246438 | Method for producing a heat exchanger with a louvered fin A method for producing a heat exchanger. A louvered fin is provided, where the louvered fin has a first bridge member for attaching a first corrugated strip and a straightening member of the louvered fin together. A first corrugated strip is fixed between first and ... | 07/24/2007 |
| 7234511 | Modular heat exchanger having a brazed core and method for forming An improved modular heat exchanger suitable for automotive applications, and particularly radiators for heavy duty equipment, and methods for forming the modular heat exchanger. The modular heat exchanger construction incorporates a brazed core assembly composed of ... | 06/26/2007 |
| 7219720 | Flat hollow body for passing fluid therethrough, heat exchanger comprising the hollow body and process for fabricating the heat exchanger A fluid passing flat hollow body 2 comprises an upper and a lower flat plate 15, 16 elongated laterally and spaced apart as positioned one above the other, and a channel forming body 17 interposed between and brazed to the two flat plates 15,... | 05/22/2007 |
| 7165326 | Heat exchanger and process for fabricating same A heat exchanger for use as an evaporator, for example, in refrigerators wherein a hydrocarbon refrigerant is used. The heat exchanger comprises a finned zigzag tube 1 comprising a zigzag tube member 2 formed by bending a pipe having no welded seams, t... | 01/23/2007 |
| 7128136 | Radial flow heat exchanger A radial flow heat exchanger for heating or cooling a fluid includes a sealed fluid manifold for passage of fluid. A sealed fluid receiving hub is spaced interiorly of the interior peripheral portion of the manifold and includes a passageway for passage of fluid int... | 10/31/2006 |
| 7124813 | High-V plate fin heat exchanger and method of manufacturing A fin for a heat exchanger coil assembly and a method of manufacturing the fin is provided. The fin includes a heat transfer enhancement pattern which appears sinusoidal in shape. The base wavy pattern of the enhancement pattern includes two wavelengths within each ... | 10/24/2006 |
| 7120026 | Heat-dissipating device with heat conductive tubes A heat-dissipating device with heat conductive tubes comprises a heat-dissipating unit having plurality of fins; each fin having a plurality of through holes; each through hole having a corresponding via hole near the through hole; a plurality of annular walls being... | 10/10/2006 |
| 7117584 | Heat exchanger tube expanding apparatus A tube expanding apparatus includes mandrels, each mandrel having a billet on a leading end; a reciprocating actuator for supporting rear ends of the mandrels, the reciprocating actuator being supported to reciprocate in an axial direction of hairpin tube straight p... | 10/10/2006 |
| 7117936 | Tube for heat exchanger In a tube (4) for a heat exchanger comprising a flat pipe (16) whose both ends are opened and in which a flow path (15) for a heat exchanging medium is formed, and an inner fin (17) arranged in the flow path (15), wherein said flat... | 10/10/2006 |
| 7111670 | Plate fin for heat exchanger and heat exchanger core A plate type heat exchanger employing flat tubes, which can be manufactured easily and which have a high heat exchange performance includes a thin strip-shaped metal plate cut in the width direction and having remaining small connected portions and many cut portions... | 09/26/2006 |
| 7107680 | Manufacturing method of heat exchanger and structure thereof A first plate and a second plate have brazing paste on the surface thereof. When the first plate is combined with the second plate while an inner fin is disposed therein, a protrusion forms a clearance there between. Heat is added to evaporate the organic substances... | 09/19/2006 |
| 7100281 | Heat sink and method of making the same A method for manufacturing a heat sink including heating a metal base to melt solder in grooves formed in the base. The base has a first coefficient of thermal expansion. The solder has a second coefficient of thermal expansion lower than the first coefficient of th... | 09/05/2006 |
| 7080526 | Full plate, alternating layered refrigerant flow evaporator An evaporator core for the climate control system of a motor vehicle formed from alternating pairs of plates. Each pair of plates includes two plates having a similar configuration engaged together and a mirrored, back-two-back relationship. Each of the plates inclu... | 07/25/2006 |
| 7073574 | Method and apparatus for forming fins for a heat exchanger A fin for use on a heat exchanger and a method for making the same. The fin is made by stamping individual columns of openings in the fin such that adjacent columns are equally spaced apart. The outermost column of openings is spaced from a side edge of the fin a di... | 07/11/2006 |
| 7065982 | Evaporator for refrigeration systems An evaporator for refrigeration systems, comprising a set of tubes (20) arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid and which are incorporated to and trespass a plurality of fins (10) arranged in mult... | 06/27/2006 |
| 7047639 | Method for manufacturing a heat-dissipating structure of a rectifier A method for manufacturing a heat-dissipating structure of a rectifier combines heat pipes into the heat-dissipating structure of the rectifier to enhance the heat-dissipating efficiency thereof. A metal tube of a heat pipe is has an inlet. A wick structure is forme... | 05/23/2006 |
| 7041385 | Composite sheet material for brazing The invention relates to a coiled composite sheet material far brazing, the composite sheet material having a structure comprising a substrate, the substrate including an aluminium substrate and/or an aluminium alloy substrate, on at least one side coupled to a carr... | 05/09/2006 |
| 7040015 | Tube finning machine and method of use This invention relates to a tube finning machine (10), and in particular to a machine capable of fitting several fins (26) to one or more tubes (26) at the same time, the assembled finned tube being suitable for heat exchange applications. Accor... | 05/09/2006 |
| 7032313 | Method of fabricating a heat exchanger Heat exchange inefficiencies found in round tube plate fin heat exchangers are eliminated in an aluminum heat exchanger that includes first and second headers (20), (22) and at least one flattened tube (24), (70) extending between the hea... | 04/25/2006 |
| 7004241 | Flexible tube arrangement-heat exchanger design A universal fin for use on a heat exchanger having a known number of vertical and horizontal tube passes. The universal fin has a plurality of openings arranged in equally spaced columns and equally spaced rows. One or more continuous fins having columns and rows of... | 02/28/2006 |
| 6928833 | Finned tube for heat exchangers, heat exchanger, process for producing heat exchanger finned tube, and process for fabricating heat exchanger A heat exchanger finned tube 10 for use in fabricating a heat exchanger 1 useful as the evaporator for refrigerators or the like wherein a hydrocarbon refrigerant is used. Two tube insertion holes spaced apart from each other are formed in each of plat... | 08/16/2005 |
| 6918435 | Fluid to gas heat exchangers A fluid to gas heat exchanger comprising a plurality of fin-tube elements (6). Each fin-tube element is an integral extrusion and comprises tubes portions (61) for carrying heat exchange fluid and fin portions (62) for dissipating heat. The fin ... | 07/19/2005 |
| 6918617 | Self-centering soldered feed-through A soldered feed-through device that is inserted into a bulkhead opening has one or more sets of laterally protruding and symmetrically distributed teeth that cut through the bulkhead material as the feed-through is inserted into the bulkhead opening. The teeth autom... | 07/19/2005 |
| 6907919 | Heat exchanger louver fin A heat exchanger fin includes a plurality of vortex generator louvers spaced apart, such that there is a gap between adjacent louvers through which a fluid, such as air, flows. Each vortex generator louver is provided with one or more mini-vortex generators along an... | 06/21/2005 |
| 6772831 | Heat exchanger and method for manufacturing the same Welds (111a) are provided in areas that are offset from curved portions (111b) where stress concentration is likely to occur. This allows excess stress to be inhibited to occur at the welds at the time of tube enlargement. Therefore, even... | 08/10/2004 |
| 6742370 | High fin density coil design utilizing precoated fin stock A method of manufacturing metal fins suitable for use in a heat exchanger which includes providing a coated patterned fin stock having a series of parallel stripes disposed longitudinally across the width of one surface of the fin stock. The stripe pattern is evenly... | 06/01/2004 |
| 6688380 | Corrugated fin heat exchanger and method of manufacture A heat exchanger includes a corrugated metal sheet comprising a first side having a plurality of first troughs alternating with a plurality of first peaks, and a second side having a plurality of second troughs alternating with a plurality of second peaks... | 02/10/2004 |
| 6662615 | Method to reduce air center middle margin turnaround for folded tube applications An improved air center form roll for use in combination with a like form roll to produce an accordion-like folded fin for a heat exchanger core, the form roll being of the type comprising a plurality of form discs abutted one to the other and having a plu... | 12/16/2003 |
| 6625886 | Manufacturing method of heat exchanger In a manufacturing method of a heat exchanger including a core portion having a plurality of tubes and a plurality of radiation fins connected to surfaces of the tubes, and a tank portion communicating with the tubes, a preheating step, a brazing step, a ... | 09/30/2003 |
| 6598295 | Plate-fin and tube heat exchanger with a dog-bone and serpentine tube insertion method A dog-bone type heat exchanger having a plurality of fin members for dissipating heat. Each of the plurality of fin members includes a pair of offset surfaces interconnected by a sloped interconnecting surface. The plurality of fins members may be spaced ... | 07/29/2003 |
| 6530144 | Apparatus for automatic assembling a heat exchanger An automatic assembling apparatus for inserting hair pins into holes formed on a heat exchanger including a plurality of flat plate fins and two side panel disposed both sides of said flat plate fins are provided. The apparatus includes a working station ... | 03/11/2003 |
| 6502305 | Method of manufacturing a heat-exchanger fin, fins according to the method and exchange module including these fins The invention relates to a method of manufacturing a fin for a heat-exchange module which comprises at least two heat exchangers equipped with fluid-circulation tubes and comprising cooling fins common to the exchangers. The fin consists of a metal strip ... | 01/07/2003 |
| 6487768 | Heat exchanger manufacturing system Improved plastic heat exchanger production systems are described. The production systems are arranged to extrude plastic tubing, cut the tubing into segments of desired length and convey the tubing to a plurality of aligned tube inserters. Clip strips are... | 12/03/2002 |
| 6415506 | Method of manufacturing heat exchanger In the method of manufacturing a heat exchanger, transverse sectional shapes of heat exchanging tubes can be easily formed into elliptical shapes. The method includes the steps of: piling metallic fins, each of which includes collared through-holes, so as... | 07/09/2002 |
