Tube Making Or Reforming Patents (Class 29/890.053)
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Patent number: 12168273Abstract: Disclosed is a method for producing a heat exchanger. The heat exchanger includes heat exchange tubes extending along a first direction and arranged along a second direction perpendicular to the first direction, and a fin. The fin is provided with fin grooves for mounting the heat exchange tubes, and each fin groove is provided with an opening on one side in a third direction perpendicular to the first direction and the second direction.Type: GrantFiled: July 30, 2020Date of Patent: December 17, 2024Assignee: DANFOSS A/SInventors: Pierre Olivier Pelletier, Leilei Wang
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Patent number: 11998972Abstract: A method for producing a shrink-fitted member by arranging a hollow type pillar shaped ceramic body inside a metal pipe and shrink-fitting them, the hollow type pillar shaped ceramic body including: an outer peripheral surface and an inner peripheral surface in a direction substantially parallel to an axial direction; and a first end face and a second end face in a direction substantially perpendicular to the axial direction. The method includes arranging the hollow type pillar shaped ceramic body inside the metal pipe while gripping the hollow type pillar shaped ceramic body using a chuck mechanism.Type: GrantFiled: January 9, 2023Date of Patent: June 4, 2024Assignee: NGK INSULATORS, LTD.Inventors: Fumitaka Takeuchi, Shuhei Kuno, Seiya Sawada
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Patent number: 11465194Abstract: A method for forming heatsink tube includes cutting a base sheet plate into a first molded frame and a second molded frame, applying a flux on an inner face of the first molded frame and the second molded frame, mounting the first molded frame on a heatsink fin module, and mounting the second molded frame on the first molded frame, to assemble the first molded frame, the heatsink fin module, and the second molded frame, and to form a heatsink tube. The first molded frame has a first end faceplate and two first connecting portions. The second molded frame has a second end faceplate and two second connecting portions. Each of the two first connecting portions is formed with a first abutting section, and each of the two second connecting portions is formed with a second abutting section.Type: GrantFiled: September 29, 2020Date of Patent: October 11, 2022Inventor: Ping-Tsang Shih
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Patent number: 11125505Abstract: The present disclosure relates to a heat exchanger and an air conditioner improving heat exchange ability by optimizing the number of high protrusions of a heat transfer tube and a height difference between the high protrusion and a low protrusion to increase the heat transfer performance of the heat transfer tube or reduce the pressure loss in the tube. An air conditioner includes the heat exchanger including a heat transfer tube configured to allow the refrigerant to flow, fins installed on the heat transfer tube, and fin collars forming an insertion hole through which the heat transfer tube is inserted and passes, and the fin collars is in contact with the heat transfer tube by tube expansion of the heat transfer tube.Type: GrantFiled: September 14, 2018Date of Patent: September 21, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Mu Lee, Akihiro Fujiwara, Hyun Young Kim
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Patent number: 11004766Abstract: A cooler may include: a housing including a coolant space in which coolant flows; partition walls partitioning the coolant space into a plurality of flow channels; and a plurality of cooling fins located in each of the flow channels. The partition walls may be curved tortuously such that each of the flow channels comprises wide portions and narrow portions. The wide portions and the narrow portions may be arranged alternately in each of the flow channels in a direction along which the coolant flows. A number of the cooling fins located in each of the wide portions may be greater than a number of the cooling fins located in each of the narrow portions.Type: GrantFiled: June 19, 2019Date of Patent: May 11, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tadafumi Yoshida, Ryo Miyazaki, Yasuki Hirota, Takafumi Yamauchi
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Patent number: 9038267Abstract: 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: GrantFiled: June 10, 2011Date of Patent: May 26, 2015Assignee: Modine Manufacturing CompanyInventors: Manfred Schmid, Manfred Lenkner
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Publication number: 20150107812Abstract: 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: ApplicationFiled: March 30, 2012Publication date: April 23, 2015Inventors: Patrick Zanchetta, Jean-Jacques Garcia, François Beideler
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Patent number: 9009970Abstract: 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: GrantFiled: September 15, 2010Date of Patent: April 21, 2015Assignee: JFE Steel CorporationInventors: Kazuhiko Higai, Takayuki Futatsuka, Yoshikiyo Tamai, Takaaki Hira, Yuji Yamasaki
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Publication number: 20150047194Abstract: 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: ApplicationFiled: November 28, 2012Publication date: February 19, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoichi Ishigami, Takashi Kanabushi, Takashi Kagawa, Hirokazu Kadowaki
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Publication number: 20150047819Abstract: 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: ApplicationFiled: January 29, 2013Publication date: February 19, 2015Inventors: Christian Riondet, Jean-Marc Lesueur, Kevin Gahon, Romain Dehaine, Damien Burgaud, Yann Pichenot, Xavier Marchadier
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Publication number: 20150040399Abstract: 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: ApplicationFiled: March 14, 2013Publication date: February 12, 2015Inventor: Michael Dennis
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Patent number: 8950071Abstract: 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: GrantFiled: May 5, 2010Date of Patent: February 10, 2015Assignee: Brugg Rohr AG HoldingInventor: Karl Knecht
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Patent number: 8869399Abstract: 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: GrantFiled: July 21, 2011Date of Patent: October 28, 2014Inventors: Claude Lesage, Jean-Claude Lesage
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Publication number: 20140251785Abstract: 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: ApplicationFiled: March 6, 2014Publication date: September 11, 2014Applicant: Foster Wheeler USA CorporationInventors: Bruce T. Young, Ronald T. Myszka
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Publication number: 20140182827Abstract: 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: ApplicationFiled: December 2, 2013Publication date: July 3, 2014Inventor: Carlos Quesada Saborio
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Publication number: 20140182829Abstract: 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: ApplicationFiled: February 7, 2014Publication date: July 3, 2014Applicant: Modine Manufacturing Co.Inventors: Zachary Ouradnik, Girish Mantri, Brian Merklein, Eric Lindell, John Kis, JR., Keith Davis, Michael McGregor, Gregory Hughes
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Patent number: 8752295Abstract: 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: GrantFiled: December 29, 2010Date of Patent: June 17, 2014Assignee: GM Global Technology Operations LLCInventors: Wuhua Yang, Charles J. Bruggemann, Robert R. Mayer
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Publication number: 20140144020Abstract: 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: ApplicationFiled: November 27, 2012Publication date: May 29, 2014Applicant: C.M.S. Costruzione Macchine Speciali S.R.L.Inventors: VINICIO MAGGIOLO, LORIS SARTORI
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Patent number: 8732951Abstract: 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: GrantFiled: July 2, 2009Date of Patent: May 27, 2014Inventor: Georg Bruendermann
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Patent number: 8726508Abstract: 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: GrantFiled: January 19, 2007Date of Patent: May 20, 2014Assignee: Modine Manufacturing CompanyInventors: Werner Zobel, Jens Nies, Bernhard Stephan, Charles James Rogers, Thomas Feldhege
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Patent number: 8713796Abstract: 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: GrantFiled: January 16, 2009Date of Patent: May 6, 2014Assignee: Modine Manufacturing CompanyInventor: Ingo Daut
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Publication number: 20140096391Abstract: 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: ApplicationFiled: October 9, 2012Publication date: April 10, 2014Applicant: BRAZEWAY, INC.Inventors: David W. Skrzypchak, Vikas Somani, Brian J. Christen
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Publication number: 20140090249Abstract: 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: ApplicationFiled: December 9, 2013Publication date: April 3, 2014Inventor: Jon D. McWhirter
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Patent number: 8683690Abstract: 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: GrantFiled: July 18, 2008Date of Patent: April 1, 2014Assignee: Modine Manufacturing CompanyInventors: Werner Zobel, Jens Nies, Bernhard Stephan, Charles James Rogers, Thomas Feldhege
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Patent number: 8667686Abstract: 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: GrantFiled: August 5, 2010Date of Patent: March 11, 2014Assignee: Modine Manufacturing CompanyInventor: Werner Zobel
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Patent number: 8667683Abstract: 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: GrantFiled: November 20, 2006Date of Patent: March 11, 2014Assignee: New Standard CorporationInventors: David R. Thomas, David A. Porter, Stefan A. Giese, James M. Johns, Guy D. Newhouse, Debra A. Shank, Duane E. Shickley, Angela J. Wolfshuk
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Patent number: 8661674Abstract: 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: GrantFiled: December 15, 2010Date of Patent: March 4, 2014Inventor: Michael P. Metz
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Patent number: 8650755Abstract: 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: GrantFiled: July 12, 2006Date of Patent: February 18, 2014Assignee: Zhongshan Weiqiang Technology Co., Ltd.Inventors: Ke-Chin Lee, Chih-Sheng Wang, Chi-Te Chin
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Publication number: 20140041228Abstract: 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: ApplicationFiled: August 9, 2012Publication date: February 13, 2014Inventors: Eric Lindell, Girish Mantri, Brian Merklein, Zachary Ouradnik
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Publication number: 20130340255Abstract: 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: ApplicationFiled: April 19, 2013Publication date: December 26, 2013Applicant: CARRIER CORPORATIONInventors: Michael W. Samko, William E. Moyt, Larry Pugh
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Publication number: 20130334715Abstract: 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: ApplicationFiled: August 20, 2013Publication date: December 19, 2013Applicant: DRI-STEEM CorporationInventors: James M. Lundgreen, Jeffrey Martin Horejsi
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Patent number: 8578606Abstract: 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: GrantFiled: April 20, 2012Date of Patent: November 12, 2013Assignee: Icepipe CorporationInventor: Sang-Cheol Lee
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Patent number: 8561451Abstract: 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: GrantFiled: August 3, 2009Date of Patent: October 22, 2013Assignee: Modine Manufacturing CompanyInventors: Frank Opferkuch, Daniel Borst, Martin Ploppa, Werner Zobel, Jens Nies, Andreas Stolz, Dieter Merz, Siegfried Eisele
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Patent number: 8555502Abstract: 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: GrantFiled: January 29, 2007Date of Patent: October 15, 2013Assignee: BEHR GmbH & Co. KGInventors: Peter Englert, Bernd Grünenwald, Matthias Türpe
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Publication number: 20130266838Abstract: 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: ApplicationFiled: August 30, 2011Publication date: October 10, 2013Applicant: Akasol Engineering GmbHInventors: Felix Von Borck, Björn Eberleh
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Publication number: 20130248158Abstract: 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: ApplicationFiled: April 19, 2011Publication date: September 26, 2013Inventors: Qiang Gao, Yanxing Li, Linjie Huang
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Patent number: 8518337Abstract: 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: GrantFiled: July 13, 2009Date of Patent: August 27, 2013Assignee: SAIPEM S.p.A.Inventors: Domenico Sanfilippo, Luca Mairano, Alessandro Gianazza, Lino Carlessi
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Publication number: 20130180689Abstract: 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: ApplicationFiled: July 17, 2012Publication date: July 18, 2013Applicant: Benteler Automobiltechnik GmbHInventors: Wilhelm Böning, Rolf Lange
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Patent number: 8484845Abstract: 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: GrantFiled: September 18, 2009Date of Patent: July 16, 2013Assignees: CPUMate Inc., Golden Sun News Techniques Co., Ltd.Inventors: Kuo-Len Lin, Chen-Hsiang Lin, Ken Hsu, Chih-Hung Cheng
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Patent number: 8479392Abstract: 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: GrantFiled: June 2, 2011Date of Patent: July 9, 2013Assignee: Westinghouse Electric Company LLCInventor: Robert M. Wepfer
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Patent number: 8474517Abstract: 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: GrantFiled: July 29, 2009Date of Patent: July 2, 2013Assignee: Modine Manufacturing CompanyInventors: Daniel Borst, Christoph Schiebel, Frank Vetter
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Patent number: 8458904Abstract: 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: GrantFiled: November 11, 2010Date of Patent: June 11, 2013Assignee: Millennium Industries CorporationInventors: Michael J. Zdroik, Robert J. Doherty
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Patent number: 8438728Abstract: 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: GrantFiled: July 18, 2008Date of Patent: May 14, 2013Assignee: Modine Manufacturing CompanyInventors: Werner Zobel, Jens Nies, Bernhard Stephan, Charles James Rogers, Thomas Feldhege
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Publication number: 20130097864Abstract: 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: ApplicationFiled: July 6, 2011Publication date: April 25, 2013Applicant: BEHR GMBH & CO. KGInventor: Steffen Brunner
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Publication number: 20130098586Abstract: 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: ApplicationFiled: March 1, 2010Publication date: April 25, 2013Inventor: Olli Pekka Naukkarinen
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Publication number: 20130068437Abstract: 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: ApplicationFiled: May 11, 2011Publication date: March 21, 2013Applicant: Sanden CorporationInventors: Yuuichi Matsumoto, Yusuke Iino
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Patent number: 8393385Abstract: 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: GrantFiled: September 20, 2010Date of Patent: March 12, 2013Assignee: Mikutay CorporationInventors: Minoru Nitta, Takeyoshi Nitta
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Patent number: 8387251Abstract: 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: GrantFiled: April 15, 2010Date of Patent: March 5, 2013Assignee: Sumitomo Metal Industries, Ltd.Inventor: Kenichi Beppu
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Patent number: 8365409Abstract: 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: GrantFiled: May 22, 2009Date of Patent: February 5, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Eisaku Kakiuchi, Yasuji Taketsuna, Masahiro Morino, Yuya Takano
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Publication number: 20120325450Abstract: 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: ApplicationFiled: August 19, 2011Publication date: December 27, 2012Inventors: Tim Mimitz, Tim Mattson