Common Fin Traverses Plurality Of Tubes Patents (Class 29/890.047)
  • Patent number: 10253730
    Abstract: A water-cooled EGR cooler apparatus may include tubes in which gas passage is formed, and a tube bonded portion that internally and externally seals is provided, pins disposed at the gas passage of the tubes, and of which one surface contact and are bonded with the tube bonded portion, and supporters disposed between the tubes to form coolant passages and of which one surface contact and are bonded with the tube bonded portion.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: April 9, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Il Yoon, Dong Young Lee, Do Jun Park, Seogjin Yoon, In Sung Yun
  • Patent number: 10113801
    Abstract: A multi-fluid heat exchanger assembly Is provided that integrates multiple and distinct heat exchanger systems into a single, integrated system or housing utilizing a common header. Any combination of techniques as described may be utilized for optimizing exchanger performance according to the particular fluids being cooled. The heat exchanger assembly can be optimized by utilizing a pair of opposed headers having a first set of openings and a tube core arranged according to a first configuration and a second set of openings and a tube core arranged according to a second configuration and wherein the first and second configurations are different from one another. The heat exchanger assembly can also be optimized through different tube core/fin joining techniques for each of the distinct heat exchanger systems. Another technique for optimizing the heat exchanger assembly is through the use of differing core depths for each of the distinct heat exchanger systems.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: October 30, 2018
    Assignee: Wabtec Holding Corp.
    Inventors: Jay S. Korth, Geoff Smith
  • Patent number: 9303925
    Abstract: A refrigeration system including a refrigeration circuit that has an evaporator, a compressor, a condenser, and a heat exchanger. The evaporator, compressor, and condenser are fluidly connected and arranged in series with each other. A liquid line fluidly connects the evaporator to the condenser and a suction line fluidly connects the compressor to the evaporator. The heat exchanger includes a plurality of first refrigerant flow tubes that is in fluid communication with one of the suction line and the liquid line, and a second refrigerant flow tube that is in fluid communication with the other of the suction line and the liquid line. Each of the first refrigerant flow tubes and the second refrigerant flow tube have microchannels, and the second refrigerant flow tube positioned between and cooperates with the first refrigerant flow tubes to heat vapor refrigerant flowing in the suction line.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 5, 2016
    Assignee: Hussmann Corporation
    Inventors: Ming Zhang, Ken Nguyen
  • Patent number: 9291375
    Abstract: A thermoelectric heat exchanger for heating or cooling a medium, that includes at least one first tube for carrying a first medium and at least one second tube for carrying the first medium. The second tube being arranged substantially parallel to the first tube. The thermoelectric heat exchanger also has a casing element that is interposed between the first and the second tube, the casing element comprising a first casing part that is connectable to the first tube and at least one second casing part that forms a fluid channel for a second medium. A thermoelectric element for heating or cooling the first or second medium is interposed between the first and second casing part, the thermoelectric element being closed relative to the first and/or the second medium in a fluid-tight manner via the casing element.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: March 22, 2016
    Assignee: MAHLE International GmbH
    Inventors: Holger Brehm, Thomas Heckenberger, Thomas Himmer, Rudolf Riedel
  • Patent number: 9149847
    Abstract: A shell tube and heat exchanger (10) includes a plurality of tubes surrounded by a shell (16). Each tube (12) includes a plurality of indentations. A mold is placed in a desired positions and orientation in a die. A tube is placed in a first position within a die, and the mold crimps the tube to form the desired indentation in the tube. The mold is then released, and the tube is moved relative to the mold to a second position. The mold again crimps the tube to form an additional indentation. Alternately, the mold includes a roller that forms a groove on the tube. The tube is translated or both translated and rotated relative to the mold to form the groove.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: October 6, 2015
    Assignee: Halla Visteon Climate Control Corporation
    Inventor: Jerry L. Holden
  • Publication number: 20150136374
    Abstract: A heat exchanger assembly, comprising: heat exchanger pipework which comprises a plurality of elongate tube elements which extend in spaced relation and a plurality of pipe end couplings which fluidly connect open ends of respective tube elements, wherein the pipe end couplings each comprise a main body part to which the open ends of the respective tube elements are fixed, and an enclosure part which is fixed to the main body part and provides a closed fluid connection between the open ends of the respective tube elements; and a plurality of fins which extend in spaced relation and optionally substantially orthogonally to the tube elements, wherein the fins each comprise a sheet element, optionally a single, continuous sheet element, which includes a plurality of apertures through which extend respective ones of the tube elements, and a plurality of fin coupling elements which are located within respective ones of the fin apertures to interface the tube elements to the sheet elements.
    Type: Application
    Filed: July 31, 2014
    Publication date: May 21, 2015
    Inventors: Michael Alan Burns, Paul Andrew Burns
  • Publication number: 20150129180
    Abstract: A heat exchanger system includes a fluid distribution element and a 1 pass heat exchanger. The fluid distribution element has a central inlet and fluid-sealed, channel-like fluid guide which branches into a plurality of fluid guidance channels. The 1 pass heat exchanger consists of a plurality of through-flowable tubes disposed in one plane and having planar partial faces, preferably flat tubes, and fins connected on the planar partial faces to the tubes. Each of the through-flowable tubes has a tube inlet and a tube outlet, the tube outlets opening into a fluid collection system. The fluid distribution element having the same number of fluid outlets as the 1 pass heat exchanger has through-flowable tubes and at least one of a direct connection of the fluid distribution element to the 1 pass heat exchanger or an indirect connection of the fluid distribution element to the 1 pass heat exchanger.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 14, 2015
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der antgewandten Forschung e.V.
    Inventors: Andreas Strehlow, Birgo Nitsch, Thore Oltersdorf, Markus Werner
  • Publication number: 20150114613
    Abstract: A method for manufacturing a heat exchanger is provided. The heat exchanger includes a plurality of plate-like fins that are stacked with a predetermined fin pitch, and a plurality of flat heat exchanger tubes that are disposed with a predetermined spacing from one another along the longitudinal direction of the plate-like fins and extend through the plate-like fins along the stacking direction. The plate-like fins each have a plurality of notches provided in an end portion along the long side. The plate-like fins have a shape corresponding to the cross-sectional shape of the flat heat exchanger tubes, and the flat heat exchanger tubes are inserted into the notches. The manufacturing method includes disposing the flat heat exchanger tubes with a predetermined spacing from one another, and attaching the plate-like fins to the flat heat exchanger tubes one by one by inserting the flat heat exchanger tubes into the notches of each of the plate-like fins.
    Type: Application
    Filed: June 29, 2012
    Publication date: April 30, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Wataru Suzuki, Kazuyoshi Takayama, Tomohiko Takahashi
  • Publication number: 20150068715
    Abstract: A method of manufacturing a heat exchanger and the heat exchanger made according to the method. The heat exchanger includes a pair of headers that define a plurality of slots. Each of the slots has a pair of nose ends that are disposed within the planar surface. Each of the slots have a first flange and second flange formed on opposite sides of the slots that extend between the pair of nose ends and are recessed into the header relative to the planar surface. One end of each of the tubes is assembled into one of the slots and is connected by a braze weld to the first flange, the second flange, and the nose ends.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 12, 2015
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: JON RAVER
  • Publication number: 20150027677
    Abstract: A multiple tube flattened heat exchange tube assembly includes a first flattened tube segment, a second flattened tube segment and a web member interconnecting the trailing edge of the first flattened tube segment and the leading edge of the second flattened tube segment. The web member may be provided with one or more retained water drainage openings. A multiple slab flattened tube heat exchanger is provided that includes a plurality of the multiple tube flattened heat exchange tube assemblies disposed in spaced parallel relationship. A method for fabricating a flattened tube finned heat exchanger having a first heat exchanger slab and a second heat exchanger slab is also disclosed.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 29, 2015
    Inventors: Michael F. Taras, Arindom Joardar, Mel Woldesemayat, Bruce J. Poplawski
  • Publication number: 20140262181
    Abstract: A multiple tube bank heat exchanger includes a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship and a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship. The second tube bank is disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank. A continuous folded fin extends between the first and second flattened tube segments of both of said first tube bank and said second tube bank.
    Type: Application
    Filed: September 27, 2012
    Publication date: September 18, 2014
    Inventors: Michael F. Taras, Arindom Joardar, Luis F. Avila, Bruce J. Poplawski, Jack L. Esformes, Melkamu Woldesemayat
  • Publication number: 20140033534
    Abstract: 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.
    Type: Application
    Filed: April 25, 2012
    Publication date: February 6, 2014
    Inventors: Douglas C. Wintersteen, Kurt R. Mittlefehldt
  • Publication number: 20140027101
    Abstract: A heat exchanger includes a plurality of fins and a plurality of tubes extending through the plurality of fins. The heat exchanger includes a plurality of return tubes, each return tube connected to tube ends of desired tubes of the plurality of tubes. At least one return tube of the plurality of end tubes is configured such that an inner surface of the at least one return tube is secured to an outer surface of the tube end. A method of assembling a heat exchanger includes inserting a plurality of tubes through a plurality of fins. Desired tubes of the plurality of tubes are connected via a plurality of return tubes. Each return tube connects one or more of the plurality of tubes by inserting a tube end of a tube of the plurality of tubes into a return tube end of the return tube.
    Type: Application
    Filed: April 11, 2012
    Publication date: January 30, 2014
    Applicant: Carrier Corporation
    Inventors: Eric Konkle, Loren D. Hoffman
  • Patent number: 8578606
    Abstract: There is disclosed a manufacturing method of a heat pipe type heat-dissipating device. The method includes the steps of: winding a pipe on a loop forming mold in a spiral shape to form a pipe loop; and pressing at least a section of an outer circumference of the pipe loop so that the pipe loop is plastically deformed in a shape corresponding to the shape of the loop forming mold.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: November 12, 2013
    Assignee: Icepipe Corporation
    Inventor: Sang-Cheol Lee
  • Patent number: 8418365
    Abstract: In a method for producing a heat exchanger tube bundle for a heat exchanger of an electrochemical energy accumulators, heat exchanger channels and an intended profile are incorporated into material strips by deep drawing. A forward-flow distribution aperture is incorporated into a first such material strip from step b) (first heat exchanger plate), and return collecting apertures are incorporated into a second such material strip, forming first and the second heat exchanger plates. The latter are aligned in such a manner that webs of the two heat exchanger plates border each other, and the heat exchanger channels form heat exchanger tubes. The heat exchanger plates arranged in this manner are joined together to form a heat exchanger tube bundle. A corresponding pressure welding apparatus, a heat exchanger tube bundle, a heat exchanger module, a heat exchanger with two or more heat exchanger modules, and an electrochemical energy accumulator with a heat exchanger of this type are also disclosed.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 16, 2013
    Assignee: Daimler AG
    Inventors: Johann German, Robert Ritter, Thomas Soczka-Guth
  • Patent number: 8397530
    Abstract: The present invention provides a heat exchanger, an air conditioning apparatus, and a method for manufacturing the heat exchanger capable of reducing the scattering of condensate water from curved portions to the downstream side in the direction of airflow. An indoor heat exchanger includes lower fins and upper fins. The upper fins are inclined in the direction of the airflow at an angle formed between the longitudinal axis of the upper fins and the vertical direction, the range of the angle being equal to or greater than the range of an angle formed between the longitudinal axis of the lower fins and the vertical direction, and the upper fins are disposed adjacent to top ends of the lower fins. The upper fins have curved portions that are curved in proximity to the portions bordering the top ends of the lower fins on the downstream side in the airflow direction F.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 19, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Masaaki Kitazawa, Takashi Doi, Tetsuya Yamashita, Shinji Nagaoka, Isao Ohgami
  • Patent number: 8375584
    Abstract: The present invention relates to a heat sink of a large area, in which a heat-dissipating body is further provided in its limited space. The method for manufacturing a fin includes the steps of providing a fin, cutting the fin to form a foldable piece thereon, folding back the foldable piece to be overlapped on the fin and form an accommodating hole, and punching the folded piece and the fin to form two overlapped through-holes. The fin, the heat-dissipating body and heat pipes are assembled together to obtain the heat sink. Since the fins and the heat-dissipating body dissipate the heat of the heat-generating element simultaneously, the heat-dissipating efficiency of the heat sink can be improved.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: February 19, 2013
    Assignees: Cpumate Inc, Golden Sun News Techniques Co., Ltd.
    Inventors: Kuo-Len Lin, Chen-Hsiang Lin, Ken Hsu, Chih-Hung Cheng
  • Patent number: 8322408
    Abstract: In a heat exchanger for exchanging heat between fluid such as refrigerant and air, an object of the present invention is to extend the surface area of fins while suppressing an increase in ventilation resistance, thereby improving performances of the heat exchanger. Corrugated sheet fins (70) are provided as the fins of the heat exchanger (60). The corrugated sheet fins (70) are each shaped like a corrugated sheet. The ridgeline direction of the waveform of the corrugated sheet fins (70) is orthogonal to front edges and rear edges. In the heat exchanger (60), the plurality of corrugated sheet fins (70) are arranged at constant pitches in the axial direction of the heat transfer tube (61).
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 4, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Shun Yoshioka, Shuji Ikegami
  • Patent number: 8235100
    Abstract: A tubular cooling element includes a continuous coil having a plurality of straight pipe sections and “U” shaped 180° elbow sections that are an integral part of the tubular cooling element, the continuous coil including a pipe having a wall thickness of from 0.270 inches to 0.600 inches and an outer diameter of from 2.375 inches to 3.5 inches.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: August 7, 2012
    Assignee: Melter, S.A. de C.V.
    Inventors: Antonio Uribe Quintanilla, Jorge Carlos Gonzalez Cruz
  • Patent number: 8033018
    Abstract: 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. The invention also includes a hairpin and heat exchanger manufactured according to the method.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: October 11, 2011
    Assignee: Goodman Global, Inc.
    Inventors: Dan Dees, Eric Garza, Stephen Merschat, Sean Mosser, Andrew Overturff, Dale Stetson, William Topper
  • Patent number: 8020298
    Abstract: 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 folded fin includes a solid fin surface with multiple bends defining alternating, U-shaped air-passage channels, and a base surface and a top surface. Each folded fin is secured at the base or top surface to a main surface of a conduit section, and the folded fins have leading and trailing edges relative to airflow direction. The method includes forming a plurality of sets of secondary fins, each set extending from the leading or trailing edge of a respective folded fin at an angle other than 0. At least one conduit section has a first folded fin secured to its first main surface, and a second folded fin secured to its second main surface thereof.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: September 20, 2011
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
  • Patent number: 7996990
    Abstract: There is provided a method of manufacturing a heat exchanger, including a first step of mounting an end part of flat tube to a header, assembling the flat tube and fins, and sealing a part where the header and the end part is attached, and a second step of increasing an internal pressure of the flat tube to expand other part of flat tubes aside from the end parts with respect to the end part of the tube in order to make the fins and the other part of the flat tube in contact each other. According to this method of manufacturing, in the second step, the other part of the flat tube that passes through the fins is expanded, so that it is possible to mechanically join the flat tube and the fins, and a plate fin-type heat exchanger with high strength and heat exchange efficiency can be easily provided.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: August 16, 2011
    Assignee: GAC Corporation
    Inventors: Masanori Tsuji, Takahide Maezawa
  • Publication number: 20110030932
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided that include nubbed, collared, and/or flapped fins. In certain embodiments, the fins include openings or slots with protrusions for spacing multichannel tubes from the fins. During assembly, the protrusions may be deformed by the tubes. Braze alloy may be positioned in the gaps created by the protrusions to affix the multichannel tubes to the fins. In other embodiments, the fins include flaps or collars designed to interface with the multichannel tubes. In these embodiments, the tubes may be expanded into the fins.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 10, 2011
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Jeffrey Lee Tucker, Jeffrey N. Nichols, Peter J. Breiding, Charles B. Obosu, Jerome Anthony Matter, III
  • Patent number: 7856716
    Abstract: A method for assembling a plurality of tubes to a tubesheet. A first end of each of the tubes is situated over a corresponding support rod that extends from a pattern block of the fixture. A first end of a plurality of locating members is inserted into a second end of each of the tubes such that a second end of the locating member extends from the tube second end. The tubesheet is then slid over the locating members and tubes such that each of a plurality of holes in the tubesheet receive corresponding ones of the tubes.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: December 28, 2010
    Assignee: Liebert Corporation
    Inventor: Matthew A Dixon
  • Publication number: 20100252246
    Abstract: A heat exchanger is provided. The heat exchanger includes a plurality of aluminum tubes formed of aluminum, each of the aluminum tubes including a plurality of grooves that are formed on an inner circumferential surface of each of the aluminum tubes and that extend along a longitudinal direction of the aluminum tubes; and a plurality of heat transfer fins coupled to the aluminum tubes. The heat exchanger may contribute to the reduction of the manufacturing cost, may provide high heat transfer performance and may prevent a coolant leak.
    Type: Application
    Filed: August 29, 2008
    Publication date: October 7, 2010
    Inventors: Ju Hyok Kim, Yong Cheol Sa, Han Choon Lee, Dong Hwi Kim, Hong Seong Kim, Sang Yeul Lee
  • Patent number: 7798205
    Abstract: In a heat exchanger having a core portion in which aluminum flat tubes and aluminum fins are disposed alternatively and brazed with each other, each fin has one side portion located at one side of the tube and the other side portion located at the other side of the tube. The one side portion of the fin is higher in pitting potential than the other side portion of the fin, and the pitting potential difference between the one side portion of the fin and the other side portion of the fin is 40 to 200 mV. The pitting potential difference can be formed by the Zn concentration difference in the aluminum alloy constituting the fin.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: September 21, 2010
    Assignee: Showa Denko K. K.
    Inventors: Kazuhiko Minami, Takenori Hashimoto
  • Patent number: 7726024
    Abstract: In a heat exchanger, a core portion includes a plurality of plate fins each shaped like a flat plate and a plurality of tubes in which a fluid flows and each of which is inserted into each of the plate fins to be mechanically bonded thereto. Further, an end portion in a longitudinal direction of each of the tubes is bonded to a header plate which constructs a part of a header tank. The manufacturing method for this heat exchanger includes inserting the tube into the plate fins; expanding the tube to attach the plate fins; connect the tube into the header plate; and vibrate the tube with respect to the plate while applying a load to the tube in the direction of the header plate.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: June 1, 2010
    Assignee: Denso Corporation
    Inventors: Katsuya Ishii, Hirokazu Hashimoto, Yuuichi Aoki, Kazuo Itoh
  • Patent number: 7716829
    Abstract: 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 leakage between the wet, scavenger air stream flowing through the tubes and a dry air stream flowing around the tubes. A method of making the heat exchanger includes providing the openings with a flange and uses an interference fit between the rigid heat exchange tubes and the header openings. A self-leveling sealant may be used to seal the heat exchanger tubes to the header using, for example, a paint roller and/or a paint sprayer.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: May 18, 2010
    Assignee: The Munters Corporation
    Inventor: Nicholas H. Des Champs
  • Publication number: 20100044023
    Abstract: A heat exchanger with multiple tubes whose ends are connected with connectors to provide a flow path for heat exchange fluid through the heat exchanger. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: August 21, 2008
    Publication date: February 25, 2010
    Inventors: Andres Alberto Canales, Lendell Martin, SR.
  • Publication number: 20090314471
    Abstract: A heat pipe type heat sink (1) and method of manufacturing the same are disclosed. The heat pipe type heat sink (1) includes a plurality of heat pipes (11) and a base (12) supporting the heat pipes. Each of the heat pipes (11) has a heat absorption portion (111) and a heat dissipation portion (112) in connection with the heat absorption portion (111). One side of the base (12) is provided with a plurality of grooves (121). The heat absorption portion (111) of the heat pipe (12) is pressed and held in a respective one of the grooves (121).
    Type: Application
    Filed: December 27, 2006
    Publication date: December 24, 2009
    Inventor: Jianjun Du
  • Patent number: 7328509
    Abstract: 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 the frame assembly. The weaving mechanism includes an alignment plate to align the tubes and separation plates to separate the tubes after they have been aligned. The weaving apparatus thus automates the step of separating the tubes of the heat exchanger so that the spacer can ready inserted between the tubes.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: February 12, 2008
    Assignee: FAFCO Incorporated
    Inventor: Richard O. Rhodes
  • Patent number: 7278209
    Abstract: 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. Each of the heat radiating fins extends away from the central axis and defines at least one radially distal edge. After the base portion and the heat-radiating fins are formed, a distal-edge protrusion or a recess is formed on or in at least one of the heat radiating fins by a machining process, so as to form partially along the envelope of the heat sink at least one discrete engagement feature.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: October 9, 2007
    Assignee: Nidec Corporation
    Inventors: Takaya Otsuki, Masahiro Ishikawa
  • Patent number: 7246438
    Abstract: 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 second adjacent tubes of the heat exchanger such that the first corrugated strip is kept in a straight shape by the first and second tubes. The straightening member is detached from the first corrugated strip by breaking the first bridge member such that there is provided a first sandwiched structure having the first corrugated strip fixed between the first and second tubes.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: July 24, 2007
    Assignee: Calsonic Kansei Corporation
    Inventors: Kimio Nozaki, Kenji Tochigi
  • Publication number: 20070051502
    Abstract: A heat exchanger fin, capable of improving heat transfer rate while preventing generation of heat bypass flow, such as a louver fin provided with a plurality louvers arranged at certain intervals in the introduction direction of air. The louvers are formed by cutting and bending the heat exchanger fin so that the air is passed while being guided by the louvers. The plurality of louvers include louvers different in louver width, the louver width being defined by a length of the louver along which the heat medium passes. Wider louvers and narrower louvers can be arranged alternatively.
    Type: Application
    Filed: May 19, 2004
    Publication date: March 8, 2007
    Applicant: SHOWA DENKO K.K.
    Inventor: Shinobu Yamauchi
  • Publication number: 20070044309
    Abstract: The invention relates to a plate heat exchanger and a method of manufacturing a plate heat exchanger. The plate heat exchanger includes a number of heat exchanger plates (1, 1?, 1?) which are provided beside each other and connected to each other by means of a braze connection. The heat exchanger plates are substantially manufactured in stainless steel containing chromium. The plate heat exchanger includes a number of port channels extending through at least some of the heat exchanger plates. Each port channel is surrounding by a connection surface (5) for connection of the port channel to a pipe member (6). The connection surface includes a material permitting brazing of the pipe member to the connection surface in a more easy manner than stainless steel.
    Type: Application
    Filed: September 20, 2004
    Publication date: March 1, 2007
    Inventors: Per Sjodin, Per-Olof Dahlberg
  • Patent number: 7165326
    Abstract: A heat exchanger for use as an evaporator, for example, in refrigerators wherein a hydrocarbon refrigerant is used.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: January 23, 2007
    Assignee: Showa Denko K.K.
    Inventors: Akio Kurihara, Shigeo Marugasa
  • Publication number: 20060265873
    Abstract: This invention relates to a tube finning machine (10) and to a method of use thereof. Typically, the finned tubes will be for use in heat exchangers. In the present invention, the machine (10) has tensioning means (32, 44) for applying tension to the tubes (16) during the finning process, tension in the tubes reducing the likelihood that the tubes will buckle or deform during the process. Also, the invention discloses the use of a solid material introduced between the fins (22) to support the fins during the finning process, the solid material being removed after completion of the process. The solid material can be a granular material, or it can be a continuous material introduced (and removed) in its liquid state.
    Type: Application
    Filed: April 1, 2004
    Publication date: November 30, 2006
    Inventor: David Pierce
  • Patent number: 7128136
    Abstract: 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 into or out of the heat exchanger. A plurality of separate and spaced fluid flow tubes are disposed between the manifold and the hub. Each of the tubes are in sealed fluid communication with the manifold at one end and the other end is in sealed fluid communication with the hub. A fin assembly is positioned between the manifold and the hub and includes a heat conducting material arranged at spaced intervals between the manifold and the hub, the heat conducting material including a plurality of spaced apertures through which tubes pass.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: October 31, 2006
    Inventor: Christian T. Gregory
  • Patent number: 7124813
    Abstract: 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 tube row and includes seven discrete segments. Six of the seven segments are circular arc segments. The seventh segment comprises two linear segments which form a condensate channel. The segments are arranged in a particular order at specific distances offset (above and below) from a leading edge nominal air streamline (LENAS) by a fraction of a nominal fin pitch Pf. The LENAS is related to the “normal” base wavy pattern used in other fins.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: October 24, 2006
    Assignee: York International Corporation
    Inventor: Douglas Alan Kester
  • Patent number: 7120026
    Abstract: 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 arranged around each through hole; and a plurality of heat conductive tubes passing through respective through holes of the fins. In manufacturing, the plurality of heat conductive tubes and the heat-dissipating unit with press bars are positioned to a fixture; a shaping mold serves to punch the press bars so that the press bar to press the side walls and thus the fins are tightly riveted to the heat conductive tubes.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: October 10, 2006
    Inventor: Shyh-Ming Chen
  • Patent number: 7100281
    Abstract: 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 thermal expansion. The metal base and the solder are cooled and the metal base experiences tensile stresses and the solder experiences compressive stresses to form a concavity in a thermal face of the base. The thermal face is then planed. Over time, the tensile stresses and the compressive stresses reduce such that the thermal face becomes convex.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Randall G. Kemink, Prabjit Singh
  • Publication number: 20060168812
    Abstract: A method of forming tubing with integral fins oriented parallel to its length, and to a heat exchanger tube produced by such a method. The invention involves extruding a tube so that the tube has at least one internal longitudinal passage, an external surface having a cross-sectional shape in a plane transverse to the extrusion direction, and at least one integral fin parallel to the extrusion direction and extending in a direction away from the external surface of the tube. The tube may be one of a plurality of tubes assembled in parallel to a pair of manifolds, and such tubes are preferably oriented so that their integral fins are substantially parallel, with the fin(s) of a given tube extending toward an adjacent one of the tubes.
    Type: Application
    Filed: March 31, 2006
    Publication date: August 3, 2006
    Applicant: Norsk Hydro A.S.
    Inventor: Jeffrey Insalaco
  • Patent number: 7047639
    Abstract: 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 formed inside the metal tube. The inlet of the metal tube is sealed. The metal tube is disposed in a mold of a heat-dissipating shell. A melted metal is cast into the mold and forms a heat-dissipating shell. The heat-dissipating shell is taken out from the mold. The sealed inlet of the metal tube in the heat-dissipating shell is cut. The metal tube is filled with a working fluid. The inlet of the metal tube is sealed.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: May 23, 2006
    Assignee: Actron Technology Corporation
    Inventor: Charng-Geng Sheen
  • Patent number: 7040015
    Abstract: 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. According to one aspect of the invention there is provided a tube finning machine for mounting extended surface members (96) upon one or more tubes, the machine having a base (10), carrier means movable relative to the base, drive means (20) for moving the carrier means (18) in a longitudinal direction, and cartridge means (24) for locating a plurality of extended surface members (26), the cartridge means having respective support means (30) for each extended surface member, and at least some of the support means being movable relative to the cartridge. There is also provided a method of using a machine as herein defined for finning a tube.
    Type: Grant
    Filed: October 8, 2001
    Date of Patent: May 9, 2006
    Inventor: David Bland Pierce
  • Publication number: 20060090331
    Abstract: A temporary assembly device comprises a radiator tube feeder feeding a radiator tube to lower claw parts of a pair of carrier claws to have the radiator tube held on a set base, and a condenser tube feeder feeding a condenser tube to upper claw parts of the pair of carrier claws to have the condenser tube held on first protrusions of positioning guides, so that the condenser tube is disposed immediately above the radiator tube with a predetermined interval therebetween. In this manner, a first heat exchanger core and a second heat exchanger core are temporarily assembled with these tubes being stacked in two tiers.
    Type: Application
    Filed: October 24, 2005
    Publication date: May 4, 2006
    Inventor: Hiroshi Chikuma
  • Patent number: 7032313
    Abstract: 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 headers (20), (22). A plurality of generally parallel tube runs are defined and each has opposite edges. A plurality of plate fins (26), (50) are arranged in a stack and each has a plurality of open ended slots (34), one for each run of the tubes (24), (70). Each of the tube runs (24), (70) is nested within corresponding slots (26) and the fins (26), (50) with one of the edges (40) of the tube runs extending outwardly of the corresponding fin (26). The assembly is brazed together.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: April 25, 2006
    Assignee: Modine Manufacturing Company
    Inventors: Stephen Memory, Gregory Hughes, Winston Zhang, C. James Rogers, Craig Grohman, Edward Robinson, Richard Mielke, Jonathan P. Wattelet, Lawrence Gabbey, Richard J. Trapp
  • Publication number: 20060048387
    Abstract: A method for punching heat dissipating tubes to fins comprises the steps of arranging a plurality of heat dissipating fins in parallel; aligning the via holes of the fins; inserting a plurality of heat dissipating tubes into the through holes formed by the via holes; inserting a plurality of press rods into the recesses of the via holes; positioning the fins upon a fixture; using a plurality of punching plates to impact the press rods to further impact the heat dissipating tubes so that the heat dissipating tubes are clamped tightly by the walls of the via holes; and drawing out the press rods from the recesses. In another case, the press rods can be removed and the recesses are made to extend to the edges of the fins and the punching plates punches the heat dissipating tubes directly.
    Type: Application
    Filed: July 5, 2005
    Publication date: March 9, 2006
    Inventors: Shyh Chen, Tian Juang, Nan Jiunn, Fuh Shian
  • Patent number: 7004241
    Abstract: 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 openings equal to the known number of tube passes can be removed from the universal fin and assembled with a tube portion to form the heat exchanger. The openings on the universal fin are configured so that one or more fins can be separated from the universal fin for use on a heat exchanger regardless of the number of horizontal and vertical passes that comprise the heat exchanger.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: February 28, 2006
    Assignee: Brazeway, Inc.
    Inventors: David W. Smithey, Milan A. Virsik
  • Patent number: RE46343
    Abstract: 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 leakage between the wet, scavenger air stream flowing through the tubes and a dry air stream flowing around the tubes. A method of making the heat exchanger includes providing the openings with a flange and uses an interference fit between the rigid heat exchange tubes and the header openings. A self-leveling sealant may be used to seal the heat exchanger tubes to the header using, for example, a paint roller and/or a paint sprayer.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 21, 2017
    Assignee: THE MUNTERS CORPORATION
    Inventor: Nicholas H. Des Champs
  • Patent number: RE47783
    Abstract: 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 leakage between the wet, scavenger air stream flowing through the tubes and a dry air stream flowing around the tubes. A method of making the heat exchanger includes providing the openings with a flange and uses an interference fit between the rigid heat exchange tubes and the header openings. A self-leveling sealant may be used to seal the heat exchanger tubes to the header using, for example, a paint roller and/or a paint sprayer.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: December 31, 2019
    Assignee: THE MUNTERS CORPORATION
    Inventor: Nicholas Des Champs