| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 029890045 | Tube with heat transfer means | 29 |
| 20130263451 | METHOD OF FABRICATING A DOUBLE-NOSED TUBE FOR A HEAT EXCHANGER - A method of forming a heat exchanger tube by folding a strip of heat conductive material into a “B” shaped double nosed tube. The strip is progressively plastically deformed to form a pair of corrugations, wherein each of the corrugations includes a series of alternating crests and web segments. An internal nose is defined by an outward extension of the outer most crest followed by an inward curve. The corrugations are then folded inward toward a surface of the strip forming a pair of folded corrugations defining a central wall along the first fold. The folded corrugations are then folded inward toward the same surface of the strip such that the central walls are tightly abutted against each other, and the internal noses are abutted up against a respective portion of the surface along the second fold, thereby forming the double nosed folded tube. | 10-10-2013 |
| 029890046 | Finned tube | 28 |
| 20080235950 | CONDENSING TUBE WITH CORRUGATED FINS - The current invention includes a tube with a helical fin extending from the tube's outer surface. The fins and tube are monolithic, or formed of one part. The fin is continuous and the fin base is essentially straight as it winds around the tube. The fin has a tip opposite the fin base with an essentially straight fin body as viewed between the tip and the base. The fin is bent into concave and convex shapes about the tube wall so the fin tip makes a wavy pattern as it winds around the tube. | 10-02-2008 |
| 20080313906 | METHOD OF FORMING HEAT EXCHANGER TUBES - The invention relates to a method for manufacturing tubes, in particular for heat exchangers, composed of endless ribbons on a roller mill, wherein the tubes are composed of at least two ribbons which are subjected to a shaping process on the roller mill, wherein perforations or predetermined break points are introduced into the ribbons at predetermined locations, wherein a step of making the perforations in the ribbons is carried out, after which the ribbons are combined to form the tube and after which individual tubes are separated off at the predetermined locations. The formation of the perforations or the predetermined break points in at least one of the two ribbons is performed within or at the end of the shaping process of the corresponding ribbon so that some of the pairs of rollers do not require a drive. | 12-25-2008 |
| 20090038155 | SYNGAS COOLERS AND METHODS FOR ASSEMBLING SAME - A method of assembling a syngas cooler is provided. The method includes coupling at least one cooling tube within the syngas cooler, wherein the at least one cooling tube includes an inner surface that defines a flow passage therethrough, an opposite outer surface, and at least one cooling fin extending outward from the outer surface, and orienting the at least one cooling tube such that the at least one cooling fin is in flow communication within a syngas flow passage defined in the syngas cooler, wherein the cooling fin facilitates enhancing heat transfer between fluid flowing in the at least one cooling tube and a syngas flow. | 02-12-2009 |
| 20090044408 | Fin-Tube Heat Exchanger Collar, and Method of Making Same - A method for forming collars in a thermally conductive plate is provided. The method includes the steps of placing a thermally conductive plate, or fin stock, within a press, and then advancing the plate through the press in order to draw a desired amount of ductile material from a plurality of collar locations within the plate. The ductile material is used in forming the collars. The method also includes further advancing the plate in order to pierce the material at the collar locations, thereby creating a plurality of through-openings in the plate. Each through-opening defines a radial wall having a proximal end and a distal end. The press is used to fold material at the distal end of the respective walls inwardly into substantial contact with an inner diameter of the walls. In this way, a plurality of collars having a first flare are formed. The material is further advanced through the press so that the distal ends of the collars are flared outwardly, thereby forming double flare collars. A reflare punch is used in forming the double flare collars at the plurality of collar locations. | 02-19-2009 |
| 20090056131 | Equipment and Method for Making a Needle-Fin Tube, and a Needle-Fin Tube - A method and equipment for making a needle-fin tube having needle-like external fin parts, and internal fin structure formed by a spiraled spring wire which expands to clamp again the tube in the needle-fin tubes. The wire used to form the internal fin is wound along and around a bar which is moved and rotated along a straight line. The bar is moved inside the needle-fin tube from its one end to the other and the wire is released from the bar to attach to the internal surface of the needle-fin tube under spring force. | 03-05-2009 |
| 20090307907 | Method for Producing a Heat Exchanger - Method for producing a heat exchanger with the following steps: a) hot dip refining a steel sheet to form a corrosion-protection layer ( | 12-17-2009 |
| 20090313829 | MICROCHANNEL HEAT EXCHANGER FABRICATED BY WIRE ELECTRO-DISCHARGE MACHINING - The present invention provides panels for a microchannel heat exchanger core wherein the panels may have greater than about 36 fins per inch of the panel. The microchannels of the panels may have an aspect ratio of at least about 10. Panels are also provided having microchannels and fins on one side of the panel or on opposite sides of the panel. Methods are also provided for machining the panels of the present invention. | 12-24-2009 |
| 20090320291 | Methods of Manufacturing Brazed Aluminum Heat Exchangers - Methods for manufacturing brazed aluminum heat exchangers involved in boiling and condensing, including a high performance nucleate boiling surface bonded with the walls of fin-less boiling passages. One method includes providing a first heat exchanger core subassembly including a first joinable end, at least one cooling and one boiling passage, and a first partial finless passage arranged at the joinable end. A second heat exchanger core subassembly is provided similar to the first including a second joinable end. The first and second heat exchanger core subassemblies are brazed. The first joinable end is affixed, preferably by welding, to the second joinable end and the first partial finless passage is affixed to a second partial finless passage to form a coupled finless passage, and thereby a heat exchanger core. | 12-31-2009 |
| 20100031506 | Method for producing steam generator tube walls consisting primarily of 9-12% martensitic chromium steels - A method for producing steam generator tube walls, where the tube walls are formed from a tube-fin-tube combination and are comprised of a multiplicity of at least one of the tube wall components made of plane tube wall panels, curved tube wall panels, transition tube wall panels and corner bends and are configured with a take-up member with one penetration opening each at tube wall regions at which tubes are passed through the tube wall and the tube wall panels exhibit at the periphery longitudinal fin-fin panel joints and transverse circumferential weld-panel joints. The method including producing tube wall components made primarily of 9-12% martensitic chromium steels by welding in a workshop, the components having a material that is not to be heat treated at specific locations. Tempering the tube wall components in the workshop with a first heating device. Connecting the tube wall components at their circumferential weld-panel joints at the assembly site with weld seams. Tempering the weld seams at the assembly site with second heating devices. Connecting the tube wall components at their fin-fin panel joints at the assembly site with weld seams without subsequent tempering of these weld seams. Passing the prepared tubes through the take-up members of the tube walls and connecting the pipe with the take-up members at the assembly site with a weld seam without subsequent tempering of these weld seams. | 02-11-2010 |
| 20100043230 | Method of Making a Hybrid Metal-Plastic Heat Exchanger - A method of manufacturing a metal-plastic hybrid heat exchanger including the steps of providing a plurality of metallic fins, providing a plastic tank with a melting point above a predetermined temperature and having a header plate that includes a plurality slots, and providing a plurality of plastic tubes with a melting point above the predetermined temperature. The plastic tubes are inserted into the corresponding slots of the plastic tank to form an assembly. The metal fins are inserted between the plastic tubes of the assembly. A thermoplastic adhesive is applied onto the mating surfaces of the metal fins and the plastic tubes, and onto mating surfaces of the slots and the plastic tubes of the assembly. The metal plastic heat exchanger assembly is then heated with infrared radiation to the predetermined temperature to cure the thermoplastic adhesive, thereby bonding the metal fins and the slotted headers to the tubes. | 02-25-2010 |
| 20110047797 | TUBE BLANK CORRECTING MEMBER FOR USE IN TEMPORARILY ASSEMBLING HEAT EXCHANGER, AND APPARATUS FOR AND METHOD OF TEMPORARILY ASSEMBLING HEAT EXCHANGER - A temporarily assembling apparatus comprises a support member | 03-03-2011 |
| 20110119917 | METHOD OF MANUFACTURE THROUGH THE WELDING OF FINNED TUBES WITH COOLED GUIDE DISCS ONTO A TUBULAR BODY SET INTO ROTATIONAL MOTION - The invention relates to a method for manufacturing finned tubes made of metal, in particular heat exchanger tubes, where at least one continuous strip forming the fins is fed tangentially to a tubular body set into rotational motion, and wound onto it, the side of the strip facing the tubular body is connected to the tube surface by means of a welding device and using a filler material, and the strip to be wound is guided between guide discs just behind the welding area, said discs reaching close up to the tube surface and the welding point. To increase the service life of the guide discs, the guide discs are cooled, specifically with cooling water to which roughly 10% by volume of a welding release agent are added. | 05-26-2011 |
| 20110162206 | METHOD FOR CONNECTING HEAT-DISSIPATING FIN AND HEAT PIPE - In an embodiment of the invention, a slot is disposed at a side of a fin. Both sides of the slot separately extend two positioning portions. After a heat pipe is placed in the slot, a mold presses the fin to make the positioning portions bent inwards. The heat pipe is gripped by the deformed positioning portions. In another embodiment, peripheries of the positioning portions are formed into guiding grooves separately, and the mold is provided with two protrusions corresponding to the guiding grooves. The guiding grooves are inserted by the protrusions when the mold is pressing the fin. The part between the positioning portions and slot is inwards deformed to grip the heat pipe. | 07-07-2011 |
| 20110167637 | HEAT EXCHANGER CORE METHOD AND APPARATUS - An apparatus for assembling a heat exchanger core matrix has a tube feed means for feeding heat exchanger tubes to a support surface upon which the heat exchanger is assembled and fin feed means for feeding heat exchanger fins to the same support surface. Both the tube feed means and the fin feed means are located above the support surface and, in use, the apparatus is operable to sequentially and vertically feed the tubes and fins to the support surface via a common feed guide. This arrangement enables the manufacture of large format heat exchanger cores. | 07-14-2011 |
| 20110314675 | Method and System for Manufacturing Tube and Fin Heat Exchangers 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 reduced diameter increases the stiffness of the resultant hairpins and allows for efficient lacing of the heat exchanger fins and end plates. The method uses pre-size rollers that are adjustable for reducing the diameter of the tubing. | 12-29-2011 |
| 20130118013 | METHOD FOR PRODUCING ALUMINUM ALLOY HEAT EXCHANGER - A method for producing an aluminum alloy heat exchanger includes applying a coating material prepared by mixing an Si powder, a flux powder, and a binder to a surface of a multiport flat refrigerant tube, assembling an aluminum alloy bare fin with the multiport flat refrigerant tube, and brazing the multiport flat refrigerant tube and the aluminum alloy bare fin to obtain an aluminum alloy heat exchanger, the multiport flat refrigerant tube being formed of an aluminum alloy extruded material that includes 0.5 to 1.7 mass % of Mn, less than 0.10 mass % of Si, and less than 0.10 mass % of Cu, with the balance being Al and unavoidable impurities, the aluminum alloy bare fin being a corrugated fin that is obtained by forming an Al—Mn—Zn alloy material, the coating material being prepared by mixing an Si powder, a Zn-containing compound flux powder, a Zn-free compound flux powder, and a binder, the Si powder being applied in an amount of 1 to 4 g/m | 05-16-2013 |
| 20140041227 | Heat Exchanger Tube, Heat Exchanger Tube Assembly, And Methods Of Making The Same - A tube assembly for use in a heat exchanger is made by arranging a first corrugated fin structure between one broad, flat side of a tube and a side sheet, and arranging a second corrugated fin between another broad and flat side of a tube and another side sheet. Compressive forces are applied to the opposite faces of the side sheets to place crests and troughs of the corrugated fin structures into contact with the side sheets and the broad, flat sides, and the assembly is brazed. | 02-13-2014 |
| 20140059858 | Heat-Dissipating Device and Method for Manufacturing the Same - The present invention provides a heat-dissipating device and a method for manufacturing the same. The heat-dissipating device includes a heat sink and a heat pipe. The heat sink has an end surface provided with a groove. The heat pipe is received in the groove. The heat pipe has a heat-absorbing surface and a heat-conducting surface. The heat-conducting surface is adhered to the inner edge of the groove. The heat-absorbing surface is in flush with the end surface. With this arrangement, heat resistance of the heat-dissipating device is reduced to improve the heat-dissipating effect thereof. | 03-06-2014 |
| 20140215825 | METHOD AND APPARATUS FOR MANUFACTURING FIN-INTEGRATED TUBE FOR USE IN HEAT EXCHANGER - The method of manufacturing a fin-integrated tube for a heat exchanger includes step of disposing a rolling roller group including rolling rollers so as to surround the periphery of a tube, each of the roller crests of the rolling rollers being rounded at an end thereof into an R-shape, widths of the R-shaped ends being gradually increased from one axial end to the other axial end for each of the rolling rollers, and step of causing the roller crests to press the periphery of the tube from the one axial end to the other axial end by axially moving and rotating the rolling roller group relative to the tube so as to deform a part of the periphery of the tube into a spirally projecting portion while shaping it into a spiral fin by gradually squeezing the part of the periphery of the tube using the R-shaped end portions. | 08-07-2014 |
| 20140298653 | METHOD FOR MANUFACTURING TUBE PLATE FIN HEAT EXCHANGERS - Method for manufacturing tube fm heat exchangers, (TFP), by brazing metal components of mainly aluminium or aluminium alloys including the following steps:—making the components of the TFP heat exchanger including the tubes ( | 10-09-2014 |
| 20140352150 | HEAT SINK STRUCTURE AND MANUFACTURING METHOD THEREOF - A heat sink structure and a manufacturing method thereof. The heat sink includes a main body and multiple radiating fins each having a folded root section. The main body has multiple connection channels formed on a circumference of the main body. The multiple radiating fins are placed in a mold. A mechanical processing measure is used to high-speed impact the main body so as to thrust the main body into the mold. Accordingly, the folded root sections of the radiating fins are relatively high-speed thrust into the connection channels of the main body to tightly integrally connect with the main body. | 12-04-2014 |
| 20140360017 | METHOD FOR ANTICORROSION TREATMENT OF OUTER SURFACE OF HEAT EXCHANGE TUBE MADE OF ALUMINUM EXTRUSION AND METHOD FOR PRODUCING HEAT EXCHANGER - The anticorrosion treatment method of the invention is carried out on the outer surface of an aluminum extruded heat exchange tube which is formed of an Al alloy containing Mn 0.2 to 0.3 mass %, Cu 0.05 mass % or less, and Fe 0.2 mass % or less, and which has a wall thickness of 200 μm or less. The anticorrosion treatment method includes applying a specific dispersion of a flux powder and a Zn powder onto the outer surface of the heat exchange tube, and vaporizing a liquid component of the dispersion, to thereby deposit the Zn powder and the flux powder on the outer surface of the heat exchange tube, such that the Zn powder deposition amount, the flux powder deposition amount, and the ratio of the flux powder deposition amount to the Zn powder deposition amount are adjusted to specific values. | 12-11-2014 |
| 20150052755 | HEAT-DISSIPATING DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a heat-dissipating device and a method for manufacturing the same. The heat-dissipating device includes a base and a first heat-dissipating fin. The outer periphery of the base has a trough. The first heat-dissipating fin has a first heat-dissipating portion, a first end and a second end. The first end and the second end are disposed in the trough. By a machining process, both ends of the first heat-dissipating fin are pressed into the trough of the base at a high speed, so that the base can be combined with the first heat-dissipating fin rapidly. In this way, the manufacture cost is reduced and the heat-dissipating efficiency is increased. | 02-26-2015 |
| 20150360332 | VERTICAL BUNDLE AIR COOLED HEAT EXCHANGER, METHOD OF MANUFACTURING THE SAME, AND POWER GENERATION PLANT IMPLEMENTING THE SAME - A vertical bundle air-cooled heat exchanger, In one embodiment, the invention can be a vertical bundle air-cooled condenser comprising: at least one tube bundle assembly comprising; a tube bundle comprising a plurality of finned tubes arranged in a substantially vertical and side-by-side orientation, each of the plurality of finned tubes comprising a cavity; a top header pipe comprising an inlet header cavity operably coupled to a source of steam; a bottom header pipe comprising an outlet header cavity for collecting condensate; top ends of the plurality of finned tubes coupled to the top header pipe and the bottom ends of the plurality of finned tubes coupled to the bottom header pipe; and, a shell having an open, top end and open bottom end, the at least one tube bundle assembly positioned within the shell. | 12-17-2015 |
| 029890047 | Common fin traverses plurality of tubes | 1 |
| 20140033534 | METHOD OF MAKING A HEAT EXCHANGER WITH AN ENHANCE MATERIAL SYSTEM - The disclosure relates to a method of manufacturing a heat exchanger assembly with an enhanced material system. The enhanced material system includes refrigerant tubes extruded from a high purity AA3000 series alloy billet having about 1% by weight (wt %) Mn and pre-braze treated with either a reactive zinc flux or a mixture of elemental zinc powder and a controlled atmosphere brazed (CAB) flux applied by glass plasma or organic binder, such as an organic binder, fins formed from modified a AA3003 alloy having less than 0.05 wt % Cu and from 1.2 to 1.8% wt % Zn, and header manifolds manufactured from a AA3000 series alloy with a AA4000 series cladding having 0.9 to 1.1 wt % Zn. The enhanced material system may also include a post braze coating and a subsequent organic polymer resin topcoat. | 02-06-2014 |
| 029890048 | Helically finned | 1 |
| 20140366375 | HEAT EXCHANGER TUBE AND METHOD FOR PRODUCING IT - A heat exchanger tube with a tube axis and with a tube wall having a tube outside and a tube inside, axially parallel or helically encircling inner ribs, with a groove which lies in each case between adjacent inner ribs, being formed from the tube wall on the tube inside, the helix angle, measured with respect to the tube axis, of the inner ribs being smaller than or equal to 45°, the region of the inner ribs which is remote from the tube wall being deformed at regular intervals asymmetrically on one side essentially in the tube circumferential direction, the deformed material of the inner ribs forming protrusions above the groove, the protrusions extending in each case over a finite deformation zone along an inner rib, the markedness of the deformation changing continuously within the deformation zone. | 12-18-2014 |
| 029890049 | Internally finned | 2 |
| 20100083501 | Continuous manufacturing process for metal-plastic hybrid heat exchanger - The invention is a method for producing a heat exchanger assembly including the steps of extruding a plastic and an adhesive from a co-extrusion die into a plurality of tubes spaced from each other with each tube having an adhesive disposed on its exterior surface. A plurality of corrugated air fins are serially fed into the co-extrusion die and spaced from each other by a predetermined space and ejected between adjacent tubes with the corrugations extending transversely between the tubes. The adhesive is then cured to secure the tubes to the air fins. The method proceeds by cutting the tubes at each predetermined space with a guillotine shear to produce a plurality of unified heat exchanger cores. The ends of the tubes of each core are inserted into tube slots in manifolds, and the tubes and manifolds are adhesively secured together to define a heat exchanger assembly. | 04-08-2010 |
| 20100088893 | METHOD OF FORMING PROTRUSIONS ON THE INNER SURFACE OF A TUBE - A method of forming a plurality of protrusions on the inner surface of a tube to reduce tube side resistance and improve overall heat transfer performance. The method includes cutting through ridges on the inner surface of the tube to create ridge layers and lifting the ridge layers to form the protrusions. In this way, the protrusions are formed without removal of metal from the inner surface of the tube, thereby eliminating debris which can damage the equipment in which the tubes are used. | 04-15-2010 |
