Tube Making Or Reforming Patents (Class 29/890.053)
  • Patent number: 9038267
    Abstract: A method and apparatus of producing tubes for use in a heat exchanger, in which a tube is moved along a production line in a direction, predetermined breaking points are created in the tube, and in which the tube is severed at the predetermined breaking points to form individual tubes with a tearing-off device having a first clamp and a second clamp. The first clamp can be reciprocated along the direction, and the tube can be moved substantially continuously along the production line in the direction through the tearing-off device. Also, the second clamp can be reciprocated along the direction substantially simultaneously with the first clamp.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 26, 2015
    Assignee: Modine Manufacturing Company
    Inventors: Manfred Schmid, Manfred Lenkner
  • Publication number: 20150107812
    Abstract: The invention relates to a heat exchanger tube produced by bending a metal strip (11), characterized in that said strip (11) has a thickness that can vary between at least one first thickness (e1) and at least one second thickness (e2) greater than said first thickness (e1), and in that said tube has thinned first zones (Z1) and reinforced second zones (Z2) located at the points of greatest mechanical stress, said first zones (Z1) being formed by first portions (P1) of said strip of first thickness (e1) and said reinforced second zones (Z2) being formed by second portions (P2) of said strip (11) of second thickness (e2). The invention also relates to a heat exchanger comprising a core bundle of such tubes, and to a method of obtaining such a tube.
    Type: Application
    Filed: March 30, 2012
    Publication date: April 23, 2015
    Inventors: Patrick Zanchetta, Jean-Jacques Garcia, François Beideler
  • Patent number: 9009970
    Abstract: A method for manufacturing includes a polygonal shape closed structure part with a bent shape in the longitudinal direction only by press forming. The method uses two metal plates for manufacturing a curvilineal closed structure part and includes a press forming process of forming straight or bent folding lines in the longitudinal direction of the two metal plates at positions corresponding to a polygonal bent shape with a flange formed at least at one of the ends of the width direction of each plate, a process of forming a closed structure by laying the two metal plates to overlap each other flange to flange and end to end for ends without flanges and by welding the portions laid to overlap each other in the longitudinal direction of the metal plates, and a process of forming a polygonal shape closed structure having a bent shape in the longitudinal direction by holding both ends of the closed structure and by compressing it toward its central axis.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: April 21, 2015
    Assignee: JFE Steel Corporation
    Inventors: Kazuhiko Higai, Takayuki Futatsuka, Yoshikiyo Tamai, Takaaki Hira, Yuji Yamasaki
  • Publication number: 20150047194
    Abstract: A tube expansion method of fixing a heat exchanger tube inserted to a tube hole of a tubesheet by tube expansion including: when there is a groove along a circumferential direction with respect to an inner circumferential surface in the middle axis of an axis direction of the tube hole, a first hydraulic tube expansion step of performing hydraulic tube expansion at a pressure of 15% and 70% in a range including the groove, and thereafter, a second hydraulic tube expansion step of performing each liquid tube expansion at a pressure of 100% in each range divided except the groove.
    Type: Application
    Filed: November 28, 2012
    Publication date: February 19, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoichi Ishigami, Takashi Kanabushi, Takashi Kagawa, Hirokazu Kadowaki
  • Publication number: 20150047819
    Abstract: The invention relates to a method for producing a heat exchanger tube (1) by bending a metal strip (11), said tube (1) having an internal partition (19) formed by joining the ends of opposing edges (11a, 11b), said partition facing a projection (50) that extends into the heat exchanger tube (1) at a joining zone (22). The method comprises the following steps: locally stamping the metal strip (11) in order to produce a projection at the joining zone (22); and bending the metal strip (11) in order to form said heat exchanger tube (1), such that the projection extends into the tube (1). The invention also relates to such a tube (1) and to a heat exchanger (3) comprising a bundle of said tubes (1).
    Type: Application
    Filed: January 29, 2013
    Publication date: February 19, 2015
    Inventors: Christian Riondet, Jean-Marc Lesueur, Kevin Gahon, Romain Dehaine, Damien Burgaud, Yann Pichenot, Xavier Marchadier
  • Publication number: 20150040399
    Abstract: The present disclosure provides a method of fabricating a component of a solar energy system. The method comprises the step of providing a tube. The tube comprises a material that deforms when at least a length of the tube is exposed to a suitable difference in pressure between an interior portion of the length of the tube and an exterior portion of the length of the tube. The method also comprises providing a die having a cavity arranged to receive the length of the tube. The cavity defines a shape that is related to that of the component of the solar energy system. Further, the method comprises positioning the length of the tube in the cavity of the die.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 12, 2015
    Inventor: Michael Dennis
  • Patent number: 8950071
    Abstract: During the manufacturing of heat-insulated pipes (1) with an inner duct (3) and an outer duct (2) and a foamed insulation (14) arranged in between, the inner duct is placed on a tension member (10). The latter is tensioned between tensioning means by means of a tensile force, such that it runs straight and that the inner duct is held straight. The latter is held on centering elements (16, 17) which are spaced from one another in a defined way by means of spacers (18). In this straight position the inner duct may be surrounded with foam inside of the outer duct, without needing spacers between the ducts.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: February 10, 2015
    Assignee: Brugg Rohr AG Holding
    Inventor: Karl Knecht
  • Patent number: 8869399
    Abstract: A method of constructing an inner glass-lined steel tank is described. The lower edge of the top dome shell is machined wherein a smooth angulated surface is formed between an outer and an inner surface of the top dome shell to form a smooth angulated surface to eliminate abrupt transition edges. Also, couplings are machined and press-fitted into the tank wall to form smooth surfaces with the inner surface of the tank. When the porcelain enamel is sprayed inside the tank there are no sharp edges which often results in defects due to the fact that the porcelain enamel is not properly adhered thereto. Such defects eventually cause corrosion within the inner tank and greatly reduce the life expectancy thereof as well as the life expectancy of the sacrificial anode connected to the tank and extending therein.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 28, 2014
    Inventors: Claude Lesage, Jean-Claude Lesage
  • Publication number: 20140251785
    Abstract: In one aspect, the present invention relates to a furnace having a heated portion arranged adjacent to an unheated portion. A plurality of straight tubes are formed of a first material and are at least partially disposed in the heated portion. A plurality of return bends are operatively coupled to the plurality of straight tubes. The plurality of return bends are formed of a second material and are at least partially disposed in the unheated portion. The first material exhibits a maximum temperature greater than the second material thereby facilitating increased run time of the furnace. The second material exhibits wear-resistance properties greater than the first material thereby facilitating wear-resistance of the furnace.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 11, 2014
    Applicant: Foster Wheeler USA Corporation
    Inventors: Bruce T. Young, Ronald T. Myszka
  • Publication number: 20140182829
    Abstract: A tube assembly for use in a heat exchanger includes a flat section with broad and flat opposing tube sides. Fin structures are bonded to the broad and flat tube sides in the flat section, and side sheets are bonded to the opposite ends of the fin structures. The flat section of the tube is located between cylindrical end sections adapted to be inserted into grommets. The construction of the tube assembly provides a stiff structure to survive insertion and removal of tube assemblies to and from a heat exchanger, for example, a radiator for heavy duty equipment.
    Type: Application
    Filed: February 7, 2014
    Publication date: July 3, 2014
    Applicant: Modine Manufacturing Co.
    Inventors: Zachary Ouradnik, Girish Mantri, Brian Merklein, Eric Lindell, John Kis, JR., Keith Davis, Michael McGregor, Gregory Hughes
  • Publication number: 20140182827
    Abstract: A tubing element used for a heat exchanger is a rigid elongated heat exchanger tubing having at least a first end, a second end, a first side wall and a second side wall. The first side wall and the second side wall are arranged substantially parallel to each other. The distance between the first side wall and the second side wall is considerably smaller than the width of the first and second side walls, resulting in a substantially overall flat tubing structure. The tubing element being at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted to form at least a part of a helical structure. A heat exchanger, the use of a tubing element, the use of a heat exchanger and the method of manufacturing of a tubing element to manufacture at least partially a heat exchanger are described.
    Type: Application
    Filed: December 2, 2013
    Publication date: July 3, 2014
    Inventor: Carlos Quesada Saborio
  • Patent number: 8752295
    Abstract: A method includes acquiring a first structural component conforming to a design, producing a first vehicle including the first structural component, and transferring possession of the first vehicle with the first structural component having a first set of mechanical properties. The method further includes acquiring a second structural component conforming to the design, subjecting the second structural component to a heat treatment process so that the second structural component is characterized by a second set of mechanical properties different from the first set of mechanical properties, producing a second vehicle including the second structural component, and transferring possession of the second vehicle with the second structural component having the second set of mechanical properties.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 17, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Wuhua Yang, Charles J. Bruggemann, Robert R. Mayer
  • Publication number: 20140144020
    Abstract: Device for expanding tubes inserted in a finned pack of a heat exchanger including support means of the finned pack, a tool for enlarging the ends of each one of the tubes, a mandrel for the radial expansion of each one of the tubes. The device also includes axial abutment means for both enlarged ends of each one of the tubes in the contraction direction of each one of the tubes during the radial expansion operation. A method for expanding tubes carried out with such a device is also proposed.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Applicant: C.M.S. Costruzione Macchine Speciali S.R.L.
    Inventors: VINICIO MAGGIOLO, LORIS SARTORI
  • Patent number: 8732951
    Abstract: 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.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 27, 2014
    Inventor: Georg Bruendermann
  • Patent number: 8726508
    Abstract: A number of flat tubes, flat tube heat exchangers, and methods of manufacturing both are described and illustrated. The flat tubes can be constructed of one, two, or more pieces of sheet material. A profiled insert integral with the flat tube or constructed from another sheet of material can be used to define multiple flow channels through the flat tube. The flat tubes can be constructed of relatively thin material, and can be reinforced with folds of the flat tube material and/or of an insert in areas subject to higher pressure and thermal stresses. Also, the relatively thin flat tube material can have a corrosion layer enabling the material to resist failure due to corrosion. Heat exchangers having such flat tubes connected to collection tubes are also disclosed, as are manners in which such tubes can be provided with fins.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: May 20, 2014
    Assignee: Modine Manufacturing Company
    Inventors: Werner Zobel, Jens Nies, Bernhard Stephan, Charles James Rogers, Thomas Feldhege
  • Patent number: 8713796
    Abstract: A flat tube for use with a heat exchanger. The flat tube including wide sides, narrow sides, an inner insert, a wall that at least partially forms the wide sides and the narrow sides, and the wall is configured to be produced from a punched-out blank. The flat tube further includes an introduction bevel in order to facilitate introduction of the inner insert. The introduction bevel includes at least two bent-down projections at an end of the flat tube. The at least two projections extend over portions of at least one of the wide sides and the narrow sides, and it being possible for the at least two projections to be separated off after the introduction of the inner insert.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: May 6, 2014
    Assignee: Modine Manufacturing Company
    Inventor: Ingo Daut
  • Publication number: 20140096391
    Abstract: A method and system for manufacturing a hairpin tube. The method includes cutting a coil of tube to provide a plurality of lengths of tubes, and bending each length of tube to form a plurality of hairpin tubes. A lubricant is then atomized with an injector nozzle, and injected into at least one open end of each hairpin tube. After lubricating the hairpin tubes, the legs of each hairpin tube are expanded.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: BRAZEWAY, INC.
    Inventors: David W. Skrzypchak, Vikas Somani, Brian J. Christen
  • Publication number: 20140090249
    Abstract: A heat exchanger, methods therefor and a nuclear fission reactor system. The heat exchanger comprises a heat exchanger body defining an exit plenum chamber therein shaped for uniform flow of a hot primary heat transfer fluid through the chamber. A plurality of adjacent heat transfer members are connected to the heat exchanger body and spaced apart by a predetermined distance for defining a plurality of flow passages between the heat transfer members. The flow passages open into the exit plenum chamber. Spacing of the heat transfer members by the predetermined distance evenly distributes flow of the primary heat transfer fluid through the flow passages, across the surfaces of the heat transfer members and into the exit plenum chamber. Each heat transfer member defines a flow channel therethrough for flow of a cooler secondary heat transfer fluid.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Inventor: Jon D. McWhirter
  • Patent number: 8683690
    Abstract: A number of flat tubes, flat tube heat exchangers, and methods of manufacturing both are described and illustrated. The flat tubes can be constructed of one, two, or more pieces of sheet material. A profiled insert integral with the flat tube or constructed from another sheet of material can be used to define multiple flow channels through the flat tube. The flat tubes can be constructed of relatively thin material, and can be reinforced with folds of the flat tube material and/or of an insert in areas subject to higher pressure and thermal stresses. Also, the relatively thin flat tube material can have a corrosion layer enabling the material to resist failure due to corrosion. Heat exchangers having such flat tubes connected to collection tubes are also disclosed, as are manners in which such tubes can be provided with fins.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: April 1, 2014
    Assignee: Modine Manufacturing Company
    Inventors: Werner Zobel, Jens Nies, Bernhard Stephan, Charles James Rogers, Thomas Feldhege
  • Patent number: 8667683
    Abstract: Apparatus and methods for use with a baffle support fixture for a machine assembly of the tubes and baffles in a bundle assembly of a shell and tube type heat exchanger. The bundle comprises tubes inserted through baffles. The bundle is assembled using a holding fixture that includes anti-rotational features to secure baffles in a desired orientation. Following assembly, the bundle assembly is temporarily fixtured using pressure applying means such as plates and rods, and is then permanently affixed using an adhesive composition. After adhesive is applied, bundles, with the pressure applying means still attached, are preserved on racks and heat treated to cure and permanently set the adhesive.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: March 11, 2014
    Assignee: New Standard Corporation
    Inventors: David R. Thomas, David A. Porter, Stefan A. Giese, James M. Johns, Guy D. Newhouse, Debra A. Shank, Duane E. Shickley, Angela J. Wolfshuk
  • Patent number: 8667686
    Abstract: A method for producing tubes for use in a heat exchanger that includes providing first and second metallic strips on a rolling mill train with predetermined breaking points using a device, deforming the strips to form the a tube, separating individual tubes from the tube at the predetermined breaking points, sensing positions of the predetermined breaking points in the strips using a sensing element which the strips pass through, transmitting signals relating to sensed positions of the predetermined breaking points of the strips to a computer, comparing the positions of the predetermined breaking points in the first and the second strips using the computer on the basis of the signals transmitted, and sending signals to the device using the computer which lead to the alignment of the positions of the predetermined breaking points in the first and the second strips.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: March 11, 2014
    Assignee: Modine Manufacturing Company
    Inventor: Werner Zobel
  • Patent number: 8661674
    Abstract: A furnace repair device and method therefore is accomplished by including pipe of suitable length and strength to have at least one swedged end permitting assembly in female to male relationship, which permits a proper securing of the replacement pipe in a desired position in the heat exchanger.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: March 4, 2014
    Inventor: Michael P. Metz
  • Patent number: 8650755
    Abstract: A method of making a length of heat conduction pipe from a long conduction pipe filled with heat transfer medium in vacuum environment comprises: a material preparation step in which a long heat conduction pipe with predetermined length sealed at both ends is prepared, a squelching and cutting step in which squelching and cutting is conducted on pre-determined point of said long heat conduction pipe in vacuum environment; a sealing step by which the cut end of said long heat conduction pipe is brazed and sealed in vacuum. There also provides an equipment for performing the method.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: February 18, 2014
    Assignee: Zhongshan Weiqiang Technology Co., Ltd.
    Inventors: Ke-Chin Lee, Chih-Sheng Wang, Chi-Te Chin
  • Publication number: 20140041228
    Abstract: A tube for use in a heat exchanger tube assembly is made by forming a round tube, reducing the diameter of an end section of the round tube, and flattening another section of the round tube. A transition zone is partially created by reducing of the diameter, and is further created by flattening the tube.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 13, 2014
    Inventors: Eric Lindell, Girish Mantri, Brian Merklein, Zachary Ouradnik
  • Publication number: 20130340255
    Abstract: An apparatus for expanding and belling a tube is provided including a receiver for supporting a first end of the tube. A stripper block assembly orients a second end of the tube along an axis. The stripper block assembly includes a first grip and a second grip movable in and out of engagement with a surface of the tube. The apparatus also includes a movable belling tool axially aligned with the tube. The belling tool bells a desired length of the tube and supports the second end of the tube. An expander tool is arranged to pass through the axially aligned tube to expand the tube. The expander tool includes an expander rod and an expander bullet. A portion of the expander bullet has a diameter larger than the diameter of the tube.
    Type: Application
    Filed: April 19, 2013
    Publication date: December 26, 2013
    Applicant: CARRIER CORPORATION
    Inventors: Michael W. Samko, William E. Moyt, Larry Pugh
  • Publication number: 20130334715
    Abstract: A steam dispersion system is disclosed. The steam dispersion system includes a header and a mounting plate spaced from the header. A steam dispersion tube including a first end and a second end and an interior cavity defined between the first end and the second end is mounted between the mounting plate and the header. The steam dispersion tube defines a longitudinal axis. A biasing structure is mounted between the mounting plate and the header, wherein the biasing structure applies a biasing force on the steam dispersion tube along a direction parallel to the longitudinal axis of the steam dispersion tube when mounted between the header and the mounting plate.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 19, 2013
    Applicant: DRI-STEEM Corporation
    Inventors: James M. Lundgreen, Jeffrey Martin Horejsi
  • 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: 8561451
    Abstract: A system and method for producing flat tubes is described and illustrated. The flat tubes can be produced from at least one strip of endless band material having at least one wall part and an inner part formed with corrugations on a roller train provided with roller pairs, with the strip running in a longitudinal direction through the rollers and being shaped. The inner part of the flat tube can be formed with corrugations placed between the shaped wall parts, after which the closure of the flat tube is carried out. Production of the flat tubes can include forming spaced apart band thinning lines running in the longitudinal direction of the strip, and forming corrugation peaks and corrugation troughs at the band thinning lines.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: October 22, 2013
    Assignee: Modine Manufacturing Company
    Inventors: Frank Opferkuch, Daniel Borst, Martin Ploppa, Werner Zobel, Jens Nies, Andreas Stolz, Dieter Merz, Siegfried Eisele
  • Patent number: 8555502
    Abstract: The invention relates to a method for producing a metal part. Said method comprises the steps of supplying a strand of metal material and applying a coating from a fluxing agent composition to a surface of the strand of material by means of an application device (1), said fluxing agent composition being applied to only a defined portion of the surface of the strand of material by means of the application device (1).
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: October 15, 2013
    Assignee: BEHR GmbH & Co. KG
    Inventors: Peter Englert, Bernd Grünenwald, Matthias Türpe
  • Publication number: 20130266838
    Abstract: The invention relates to method for the manufacture of a cooling module in the form of a body having an inner space for the reception of battery cells, wherein the body has one or more cooling passages extending in parallel to one another between an inlet region and an outlet region and is formed at least partly from a length or from a plurality of lengths of a hollow section.
    Type: Application
    Filed: August 30, 2011
    Publication date: October 10, 2013
    Applicant: Akasol Engineering GmbH
    Inventors: Felix Von Borck, Björn Eberleh
  • Publication number: 20130248158
    Abstract: A method for manufacturing a refrigerant guide tube of a heat exchanger and a refrigerant guide tube manufactured using the method and a heat exchanger with the refrigerant guide tube are disclosed. The refrigerant guide tube includes tube body and channels extending through a wall of the tube body. The tube body is formed by a butt joint of side edges of more than one bar-shaped plate materials along the length direction. The method allows forming the refrigerant channels of the guide tube before or during forming the tube body when the method is used to manufacture the guide tube, so as to avoid directly forming the channels on the tube body and make the process of manufacture the guide tube simpler and more convenient.
    Type: Application
    Filed: April 19, 2011
    Publication date: September 26, 2013
    Inventors: Qiang Gao, Yanxing Li, Linjie Huang
  • Patent number: 8518337
    Abstract: Tube-bundle equipment for heat exchange operations at high pressures and temperatures, under conditions of high aggressiveness of the process fluids, comprising a titanium lining (11) and a series of tubes (1) consisting of at least one layer of zirconium (2), positioned in contact with said fluids, wherein the tube plate on which said tubes are inserted comprises an outer layer (S) of zirconium or an alloy thereof and an underlying layer (5) of titanium welded to the lining of the equipment. Said equipment is particularly used as a heat exchanger, for example as a stripper, in the high-pressure cycle of urea syntheses processes.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: August 27, 2013
    Assignee: SAIPEM S.p.A.
    Inventors: Domenico Sanfilippo, Luca Mairano, Alessandro Gianazza, Lino Carlessi
  • Publication number: 20130180689
    Abstract: In a method for the production of a heat exchanger, a turbulator insert is placed into a heat exchanging tube, with the turbulator insert having a solder applied thereon in at least one region. Weld spots using resistance welding are formed on an inner surface of the heat exchanging tube with the turbulator insert, and the inner surface of the heat exchanging tube is interlinked with the turbulator insert through brazing.
    Type: Application
    Filed: July 17, 2012
    Publication date: July 18, 2013
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: Wilhelm Böning, Rolf Lange
  • Patent number: 8484845
    Abstract: A heat conducting structure, a heat sink with the heat conducting structure, and a manufacturing method of the heat conducting structure are disclosed. The manufacturing method includes the steps of providing a first mold (20) and a second mold (30) having different concave cambers (211, 211a, 221, 221a), using the first mold (20) to progressively compress the heat pipes (10) and form a camber (112) at an evaporating section (11), using the second mold (30) to compress the camber (112) to form a contact plane (112?) and an attaching plane (113?) perpendicular to each other, coating an adhesive (50) on the contact planes (112?), connecting the contact planes to make the attaching planes co-planar.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 16, 2013
    Assignees: CPUMate Inc., Golden Sun News Techniques Co., Ltd.
    Inventors: Kuo-Len Lin, Chen-Hsiang Lin, Ken Hsu, Chih-Hung Cheng
  • Patent number: 8479392
    Abstract: An automated tool and method for spacing a gap between the anti-vibration bars and the flow tubing in the bend region of a tube bundle of a U-tube steam generator, prior to welding, during manufacture. The tool comprises two toggle clamp elements attached to a scissors assembly, which are actuated by a linear drive motor in line with a force gauge, and coupled to a distance measuring device. The tool is operated by first attaching the toggle clamps respectively to two adjacent anti-vibration bars. A linear drive motor on the tool is then cycled and readouts of force and distance are plotted on a curve to determine the point of contact between the anti-vibration bar and the tube. The computer then automatically cycles the drive motor to adjust the gap to a desired range of position coordinates adjacent the point at which the curve markedly changes slope.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: July 9, 2013
    Assignee: Westinghouse Electric Company LLC
    Inventor: Robert M. Wepfer
  • Patent number: 8474517
    Abstract: A heat exchanger, such as a condenser or gas cooler, having a collecting tube which has a wall and which can be produced by deformation of a single metal strip, which collecting tube has, in its base, at least one row of openings in which heat exchanger tubes, each of which has two narrow and two wide sides, are fastened at their ends. The collecting tube can have at least two chambers, which adjoin one another approximately at a central longitudinal axis, and also a reinforcement, which is formed by the longitudinal edge strips of the metal strip.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 2, 2013
    Assignee: Modine Manufacturing Company
    Inventors: Daniel Borst, Christoph Schiebel, Frank Vetter
  • Patent number: 8458904
    Abstract: The present invention is directed to a fluid conduit assembly. In accordance with one embodiment of the present invention, the inventive fluid conduit assembly includes a fluid conduit having an inlet, at least one outlet and a fluid flow passageway therebetween configured to allow for fluid to be communicated between said inlet and said at least one outlet. The inventive fluid conduit assembly further includes at least one damper disposed within the passageway of the fluid conduit. The damper includes a sealed vent configured to vent gases captured by the damper during a brazing process performed on the fluid conduit when unsealed.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: June 11, 2013
    Assignee: Millennium Industries Corporation
    Inventors: Michael J. Zdroik, Robert J. Doherty
  • Patent number: 8438728
    Abstract: A number of flat tubes, flat tube heat exchangers, and methods of manufacturing both are described and illustrated. The flat tubes can be constructed of one, two, or more pieces of sheet material. A profiled insert integral with the flat tube or constructed from another sheet of material can be used to define multiple flow channels through the flat tube. The flat tubes can be constructed of relatively thin material, and can be reinforced with folds of the flat tube material and/or of an insert in areas subject to higher pressure and thermal stresses. Also, the relatively thin flat tube material can have a corrosion layer enabling the material to resist failure due to corrosion. Heat exchangers having such flat tubes connected to collection tubes are also disclosed, as are manners in which such tubes can be provided with fins.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: May 14, 2013
    Assignee: Modine Manufacturing Company
    Inventors: Werner Zobel, Jens Nies, Bernhard Stephan, Charles James Rogers, Thomas Feldhege
  • Publication number: 20130098586
    Abstract: A wound tube heat exchanger 10 article that receives a heat exchange fluid and its method of manufacture. The exchanger 10 has one or more layers 12 of a tube 14. In one embodiment, the tube surface is bare. In other embodiments, the outside tube surface is enhanced to produce turbulence. At least some of the layers 12 have an ovate oblong configuration. A pair of opposing linear runs 16,18 is connected by a pair of opposing curved sections 20,22. In some embodiments, the layers are circular, oval or rectangular with radiused corners. An elongate spacer member 24 has forwardly 26 and rearwardly 28 facing edges. Defined within those edges are engagement surfaces 30 that detachably retain the opposing linear runs 16,18.
    Type: Application
    Filed: March 1, 2010
    Publication date: April 25, 2013
    Inventor: Olli Pekka Naukkarinen
  • Publication number: 20130097864
    Abstract: The invention relates to a method for producing a tube for a heat exchanger, in particular for a motor vehicle, in which a long tube, which is provided with turbulence inserts on the surface thereof, is separated into at least two individual tubes. In order to further reduce the production costs and nevertheless achieve a clean cutting surface, a first part of an at least two-part cutting device is introduced into the interior of the long tube through at least one opening of the long tube and the second part of the cutting device is placed against the outer face of the long tube approximately opposite of the inner, first part of the cutting device, wherein the first part and the second part of the cutting device are pressed against one another in order to dividing the long tube.
    Type: Application
    Filed: July 6, 2011
    Publication date: April 25, 2013
    Applicant: BEHR GMBH & CO. KG
    Inventor: Steffen Brunner
  • Publication number: 20130068437
    Abstract: Provided is a tube for a heat exchanger in which drainage performance of the tube and the fin is improved while preventing the brazing failure. That is, provided is a tube (110) for a heat exchanger, the tube through which a refrigerant flows being formed into a flat plate shape, the tube including stepped portions (117 and 118) at both end portions (110a and 110b) in a refrigerant flowing direction, respectively, in which the tube has a widthwise length in a region on an end portion (110a or 110b) side with respect to a position of each of the stepped portions (117 and 118), the widthwise length being smaller than a widthwise length in a region between both the stepped portions (117 and 118), and in which the tube further includes a drainage portion (119) at a predetermined position between both the stepped portions (117 and 118) along the refrigerant flowing direction.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 21, 2013
    Applicant: Sanden Corporation
    Inventors: Yuuichi Matsumoto, Yusuke Iino
  • Patent number: 8393385
    Abstract: A heat exchanging device includes first and second disk members coupled together to form a disk unit having a chamber. The first disk member has an inlet and the second disk member has an outlet. At least one of the disk members has first and second connecting members coupled to the other disk member. The connecting members are arranged on opposite sides of a line extending axially through the inlet and outlet to define therebetween an inlet flow path above the line and outlet flow path below the line. A medium directing member is disposed within the disk unit. The medium directing member, the first and second connecting members and the chamber are arranged such that heat exchange media is directed to flow from the inlet, through the inlet flow path, through the chamber, through the outlet flow path, and into the outlet.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: March 12, 2013
    Assignee: Mikutay Corporation
    Inventors: Minoru Nitta, Takeyoshi Nitta
  • Patent number: 8387251
    Abstract: There is provided a production method of an internally ribbed steel tube, capable of forming spiral ribs stably so as to reduce troubles at the time of cold drawing for forming the spiral ribs of the steel tube. In this production method, the spiral ribs can be formed stably so as to reduce troubles at the time of cold drawing for forming the spiral ribs by straightening bends of a blank tube before the cold drawing for forming the spiral ribs, by optimizing the direction of the spiral rib formation after the bend straightening, and by correcting the drawing schedule depending on the blank tube. The obtained internally ribbed steel tube is well applicable to an increased capacity and a higher temperature/higher pressure operation of a boiler because the steel tube is provided with high formability and excellent quality as a boiler steel tube.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 5, 2013
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventor: Kenichi Beppu
  • Patent number: 8365409
    Abstract: A heat exchanger is provided with a cooling fin including a plurality of fin portions and a base portion supporting the fin portions, and a plurality of pins press-fitted into the fin portions. In the heat exchanger the pins each having a wider width than each space between the fin portions formed in advance in parallel straight shapes are press-fitted into the spaces in a direction from a top end of each fin portion toward the base portion. Accordingly, the fin portions are formed into corrugated shapes by plastic deformation, thereby fixing the pins between the fin portions in positions apart from the base portion. In each space the pins are arranged at intervals in a longitudinal direction of each space. The pins arranged in adjacent spaces are placed with a displacement in alternating pattern.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: February 5, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Eisaku Kakiuchi, Yasuji Taketsuna, Masahiro Morino, Yuya Takano
  • Publication number: 20120325450
    Abstract: A one-piece connector for a tube-in-tube heater exchanger comprising a T-shaped or Y-shaped outer tube is disclosed, along with a heat exchanger, a method of making the connector, and a method of making a heat exchanger.
    Type: Application
    Filed: August 19, 2011
    Publication date: December 27, 2012
    Inventors: Tim Mimitz, Tim Mattson
  • Publication number: 20120305229
    Abstract: A heat exchanger and related methods are provided. An example heat exchanger has moveable or flexible joints between tubular members that contain flowing heating medium. The moveable joints allow the overall structure of the heat exchanger to adapt to expansion, contraction, and other stresses of high-temperature, high thermal-gradient operation. The moveable joints also provide breaks in the structure, enabling repair or replacement of parts. A negative internal pressure is maintained to prevent flue gases and heat from escaping through the moveable joints, and prevents contamination of the ambient environment and products being dried. Moveable support measures also allow each tier of tubes to expand or contract independently of each other to accommodate thermal gradients within a given tier of tubes, within a given manifold, and between tiers of tubes, so that virtually all of the thermal stresses associated with conventional heat exchangers are mitigated or eliminated.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Inventor: DAVID M. STEVENS
  • Patent number: 8307886
    Abstract: A heat exchanging device includes first and second disk members coupled together to form a disk unit having a chamber. The first disk member has an inlet and the second disk member has an outlet. A medium directing member is disposed within the disk unit. A first end of the medium directing member has a first channel formed at an angle to direct heat exchange media flowing in from the inlet to the chamber, and a second end of the medium directing member has a second channel formed at an angle to direct the heat exchange media out of the chamber through the outlet. A plurality of disk units are coupled together in a row. Multiple rows of the heat exchanging devices may be disposed between manifolds.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: November 13, 2012
    Assignee: Mikutay Corporation
    Inventors: Minoru Nitta, Takeyoshi Nitta
  • Patent number: 8291892
    Abstract: A heat exchanger suitable for cooling exhaust gases and a method of making same are disclosed. The heat exchanger includes an outer casting member having first and second ends and forming a housing and a plurality of channel members forming alternating first and second flow channels for the flow of an exhaust gas through the first flow channels and coolant through the second flow channels. The channel members form a core having first and second ends, this core being mounted in the casting member. A first flange is fixedly attached to a first end of the core so as to form a sealed joint. A second flange is fixedly attached to the second end of the core so as to form another sealed joint. The first and second flanges are each coupled by fasteners to their respective ends of the casting.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: October 23, 2012
    Assignee: Dana Canada Corporation
    Inventors: Herve Palanchon, Hans Katzmaier, Bruno Chapoutol
  • Patent number: 8281489
    Abstract: A number of flat tubes, flat tube heat exchangers, and methods of manufacturing both are described and illustrated. The flat tubes can be constructed of one, two, or more pieces of sheet material. A profiled insert integral with the flat tube or constructed from another sheet of material can be used to define multiple flow channels through the flat tube. The flat tubes can be constructed of relatively thin material, and can be reinforced with folds of the flat tube material and/or of an insert in areas subject to higher pressure and thermal stresses. Also, the relatively thin flat tube material can have a corrosion layer enabling the material to resist failure due to corrosion. Heat exchangers having such flat tubes connected to collection tubes are also disclosed, as are manners in which such tubes can be provided with fins.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: October 9, 2012
    Assignee: Modine Manufacturing Company
    Inventors: Werner Zobel, Jens Nies, Roland Straehle, Siegfried Eisele, Bernhard Stephan
  • Publication number: 20120227939
    Abstract: The present invention relates to a turbulence insert (21) for flat pipes (4) for heat exchangers, to a flat pipe (4) for heat exchangers, particularly for pipes in mobile and stationary liquefiers, evaporators, and heating system, having such an internal turbulence insert (21), as well as to a heat exchanger having such flat pipes (4), as well as to a method as well as a device for the production of such a flat pipe (4).
    Type: Application
    Filed: March 30, 2011
    Publication date: September 13, 2012
    Applicant: ARUP Alu-Rohr und Profil GmbH
    Inventor: Norbert Aplienz