Class / Patent application number | Description | Number of patent applications / Date published |
165183000 | Longitudinal extending | 22 |
20090050306 | MULTI CHAMBER FLAT PIPE, HEAT EXCHANGER, AND USE OF A HEAT EXCHANGER - The invention is based on a multi-chamber flat tube (V | 02-26-2009 |
20090133864 | Heat Transfer Unit For High Reynolds Number Flow - In one aspect, a heat transfer unit is provided for increasing the temperature of process fluids, such as gas-phase fluids, having a Reynolds Number (RE) of at least about 275,000 with a low overall pressure drop and without exceeding the wall temperature limits of the material used to construct the heater. The heater generally includes a heater conduit having the gas-phase fluid flowing therethrough and a heat source, such as a radiant heat source, providing an inconsistent or variable heat flux along a length of the heater conduit where the heat source has a peak heat flux greater than an average heat flux. | 05-28-2009 |
20090133865 | PROCESS FOR PRODUCING HEAT EXCHANGER TUBES AND HEAT EXCHANGER TUBES - A process for making heat exchanger tubes comprises the operating steps of cutting a piece of sheet, subjecting the piece of sheet ( | 05-28-2009 |
20100270014 | HEAT SINK WITH RADIALLY ARRANGED RADIATION FINS - A heat sink includes a tubular base having longitudinal channels arranged in parallel around the periphery and a first and a second ribs protruding from the periphery and respectively extending along two opposite sides of each of the channels, and radiation fins radially arranged around the tubular base and supported on the second ribs, each radiation fin having an angled foot portion respectively inserted into the channels and secured thereto by the first ribs that are stamped down after the angled foot portions of the radiation fins are inserted into the channels of the tubular base. | 10-28-2010 |
20100307729 | FIRETUBE HEAT EXCHANGER - A firetube having an elongated cylindrical shell is characterized by a plurality of circular rows of elongated U-shaped fins, each having a bottom surface, preferably curved along a radius or flat, secured to the inner surface of the cylindrical shell and two flat, planar, preferably parallel sides extending upwardly from the bottom surface, with the fins in each row aligned substantially parallel along the axis of the cylindrical shell. | 12-09-2010 |
20100314092 | HEAT TRANSFER TUBE - A heat transfer tube ( | 12-16-2010 |
20130068438 | Heat Exchanger - Provided is a heat exchanger in which drainage performance of a tube and a fin is improved while preventing reduction in heat exchange efficiency. The heat exchanger includes: a tube having flat surfaces opposed to each other at a predetermined interval; and a fin including a bent portion and a flat portion which are alternately formed in a longitudinal direction, the bent portion being joined to the opposing flat surfaces of the tube. The fin has a predetermined lateral range (bent portion) in the bent portion which is brought into contact with one of the opposing flat surfaces, the predetermined lateral range being bent toward another of the opposing flat surfaces and joined to the another of the opposing flat surfaces, thereby forming a communication path. | 03-21-2013 |
20130075071 | Heat Exchanger - The invention provides a heat exchanger having a fin with an optimum thickness, and thus being capable of providing a superior cooling effect while having an excellent workability. A heat exchanger is designed to be mounted on a construction machine used on a construction site and is configured to cool heated cooling water. The heat exchanger includes a tube that allows the cooling water to flow therein, and a fin that is joined to the tube and has an imperforate and planar heat radiation surface. The thickness of the fin is greater than 0.2 mm but is equal to or less than 0.4 mm. Further, aluminum is selected as the material for the tube and the fin. The tube and the fin are joined to each other with an aluminum brazing rod. | 03-28-2013 |
20130133870 | JET PUMP ASSEMBLY - A system for an engine is provided herein. The system includes a primary passage, a suction passage, and an outer casing coupling the primary and suction passages such that a primary axis is orthogonal to a suction axis. The system further includes a jet pump assembly coupled to the primary passage forming an annular channel between the outer casing and the jet pump assembly. Further, the jet pump assembly includes a flow divider positioned opposite from the suction passage within the annular channel. | 05-30-2013 |
20130228321 | Nested Helical Fin Tube Coil and Associated Manufacturing Methods - A heat exchanger, illustratively utilized in a fuel-fired pool heater, circumscribes a burner operative to discharge hot combustion gases outwardly through the heat exchanger. The heat exchanger has a tube portion helically coiled about an axis, with a series of heat transfer fins circumscribing the tube portion and spaced apart along it length. The fins on longitudinally adjacent pairs of coils of the tubing have nested facing edge portions which collectively form a seal area that coils between the tubing portion adjacent coil pairs in axially spaced relationships therewith, the seal area substantially impeding combustion gas flow therethrough in a direction generally transverse to the axis of the heat exchanger. Additionally, the fins have deformed laterally outer portions that define a coiled, circumferentially spaced series of restricted combustion gas outlets in substantial axial alignment with the helically coiled tube portion. | 09-05-2013 |
20140284037 | Aluminum Tube-and-Fin Assembly Geometry - A tube-and-fin assembly comprises a generally elliptical, cylindrical, elongated aluminum tube and a plurality of aluminum fins. Each fin extends outward from a side of the tube body to an apex. The aluminum assembly has a ratio of fin height to fin density (Mokire ratio) of between about 0.3200 and about 0.4125. The fin height is about 6.4 mm to about 6.6 mm and the fin density is about 16 to 20 fins per inch (FPI). The fins may be part of a corrugated sheet affixed to either side of the tube. The aluminum assembly achieves heat transfer performance similar to that of copper assemblies while maintaining a similar space claim. | 09-25-2014 |
20150377563 | TUBE STRUCTURES FOR HEAT EXCHANGER - A heat exchanger includes a plurality of fins and a plurality of tubes passing a fluid therethrough, extending through the plurality of fins and radially expanded into an interference fit therewith. At least one tube of the plurality of tubes includes an outer diameter, an inner diameter, and a plurality of ridges extending from the inner diameter inwardly into an interior of the tube. A tube internal surface area per unit of length of the tube multiplied by the ratio of the outer diameter and tube wall thickness is equal to or greater than about 30.0. | 12-31-2015 |
20160097604 | HEAT TRANSFER TUBE WITH MULTIPLE ENHANCEMENTS - A heat transfer tube including an inner surface including a plurality of grooves. The plurality of grooves includes at least primary grooves and secondary grooves, wherein the primary grooves extend axially along a length of the tube, and the secondary grooves intersect the primary grooves. | 04-07-2016 |
20170234627 | COOLER AND FLOW PATH UNIT | 08-17-2017 |
165184000 | Helical | 8 |
20090050307 | Steam Generator Pipe, Associated Production Method and Continuous Steam Generator - The invention relates to a steam generator pipe which can be produced in a simple and economical manner and which has particularly good heat transitional behaviour having a large band width with various operational conditions. According to the invention, at least one insert is arranged in the inner chamber of the pipe in order to form a swirl-generating inner profile. The insert comprises at least one lamination frame having a number of large recesses. The insert is drilled in the longitudinal direction and rests at least partially on the pipe inner wall with the longitudinal edges thereof. | 02-26-2009 |
20090314481 | HEAT EXCHANGER WITH COOLING FINS - A heat exchanger comprises heat exchanging tubes ( | 12-24-2009 |
20100139903 | HEAT EXCHANGING HOLLOW PASSAGES - A hollow passage in a machine element for enhancing the heat exchanging properties between the machine element and a fluid flowing through the hollow passage; the hollow passage including a helicoidal groove. In some embodiments, the machine element comprises a heated machine element and the fluid comprises a coolant. In some embodiments, the machine element comprises a stator blade or a rotor blade of a gas turbine engine and the coolant comprises compressed air. In some embodiments, the helicoidal groove comprises a depression in an outer wall of the hollow passage that extends axially along the hollow passage to form a helicoidal or swirling path. | 06-10-2010 |
20110132590 | HELICALLY WOUND FINNED TUBES FOR HEAT EXCHANGERS AND IMPROVED METHOD FOR SECURING FINS AT THE ENDS OF THE TUBES - A finned tube for heat transfer from one medium to a second medium, and the method of manufacture, is disclosed. A helical fin of the finned tube has an area of compressed fins positioned proximate an insertion section which has a metal tube exposed with the helical fin removed therefrom. The compressed fins are a portion of the helical fin which has been compressed so that the helical fin in the area of the compressed fins is more closely spaced than the remaining portion of the helical fin. A base portion of the helical fin in the area of the compressed fins is layered and compressed on itself and is compressed against the metal tube. The layers of the base portion are compressed together and to the metal tube of the finned tube, which causes the layers of the base portion to bind together and bind to the metal tube to prevent movement of the helical fin in the area of the compressed fins in a direction parallel to the longitudinal axis of the finned tube. | 06-09-2011 |
20120111552 | FINNED TUBE HEAT EXCHANGER - A heat exchanger comprises a tube and fins extending from an outer surface of the tube in a helical path. The fins comprise serrated sections and solid sections that are disposed in a predetermined arrangement along the helical path. | 05-10-2012 |
20120211210 | COAXIAL-FLOW HEAT TRANSFER STRUCTURE - An coaxial-flow heat exchanging structure having a proximal end and a distal end for exchanging heat between a source of fluid at a first temperature and the environment (e.g. air, ground, water, slurry etc.) at a second temperature. The coaxial-flow heat transfer structure comprises: a thermally conductive outer tube section, and an inner tube section having an inner flow channel and being coaxially arranged within the outer tube section. An outer flow channel is formed between the inner and outer tube sections, and helically-extending turbulence generator is provided along the outer flow channel, so as to create turbulence along the flow of heat exchanging fluid flowing between the inner and outer flow channels, and thereby increasing the heat transfer through the walls of the outer tube section to the ambient environment. | 08-23-2012 |
20140262190 | PROCESS AND DEVICE FOR CONTROLLED DEFORMATION OF SPINE FINS WHILE SHAPING OF COILS - A method and system device for controlled deformation of spine fin coil. A spine fin tubing is placed and guided through a conduit constructed with comb-like teeth so that the spine fins are deformed by the comb-like teeth in a controlled manner. The controlled deformation can be performed either before or during winding with a winder and/or after a coil is made. | 09-18-2014 |
20150292814 | EVAPORATOR AND A METHOD FOR FORMING AN EVAPORATOR - An evaporator is provided. The evaporator includes a conduit and a spine fin assembly positioned on an outer surface of the conduit. The spine fin assembly has a first plurality of spine fins and a second plurality of spine fins that are wound about the conduit and extend away from the outer surface of the conduit. The spine fins of the first plurality of spine fins are offset from the spine fins of the second plurality of spine fins. | 10-15-2015 |