Heat Exchanger Structure Patents (Class 228/183)
  • Patent number: 11865646
    Abstract: Reduced tube pitch within a shell-and-tube heat exchange reactor such as, for example, an EO reactor, is provided by utilizing a welding material that has a high tensile (i.e., a tensile strength of greater than 600 MPa). Reduced tube pitch allows for more elongated tubes (the tubes are filled with a catalyst) to be present in a reactor, and thus a smaller reactor can be manufactured. Notably, the use of a high tensile strength welding material allows the implementation of a small welding groove located between a beveled sidewall of a beveled upper portion of an opening provided in a tube sheet overlay material (that is located atop a tube sheet) and an outermost sidewall of the elongated tube passing through the opening in the tube sheet overlay material.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: January 9, 2024
    Assignee: Scientific Design Company, Inc.
    Inventor: Mohammad Ganjvar
  • Patent number: 11865645
    Abstract: A soldering apparatus includes a cooling zone, upper and lower vent holes, an external channel, a blower unit, a heat exchanger, a pair of bypass channels, and a ventilation plate. The vent holes are provided, respectively, above and below a pair of rails configured to transport a board in the cooling zone. The external channel connects the vent holes with each other outside the cooling zone. The blower unit causes gas in the external channel to flow through the upper vent hole, the cooling zone, and the lower vent hole. The heat exchanger is provided in a lower opening linked to the lower vent hole in the cooling zone. The pair of bypass channels deliver gas above the pair of rails to the lower opening while bypassing locations of the pair of rails. The ventilation plate is provided in a space formed between the pair of bypass channels.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: January 9, 2024
    Assignee: SENJU METAL INDUSTRY CO., LTD.
    Inventor: Yuta Saito
  • Patent number: 11842942
    Abstract: A power module includes a spacer block, a thermally conductive substrate coupled to one side of the spacer block, and a semiconductor device die coupled to an opposite side of the spacer block. The spacer block includes a solid spacer block and an adjacent flexible spacer block. An inner portion of the device die is coupled to the solid spacer block, and an outer portion of the semiconductor device die is coupled to the adjacent flexible spacer block.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: December 12, 2023
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Liangbiao Chen, Yong Liu, Tzu-Hsuan Cheng, Stephen St. Germain, Roger Arbuthnot
  • Patent number: 11819903
    Abstract: Heat exchanger, and production method, including at least two plates of metal material, overlapping and reciprocally joined together so as to define a perimeter edge of the heat exchanger, and at least one circuit for the passage of a heat-carrier fluid defined by at least one or more heat exchange channels made between the plates.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 21, 2023
    Assignee: A. RAYMOND ET CIE
    Inventors: Giorgio Colugnati, Pietro Giamei
  • Patent number: 11815318
    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: Grant
    Filed: July 21, 2020
    Date of Patent: November 14, 2023
    Assignee: CARRIER CORPORATION
    Inventors: Michael F. Taras, Arindom Joardar, Luis F. Avila, Bruce J. Poplawski, Jack L. Esformes, Melkamu Woldesemayat
  • Patent number: 11796232
    Abstract: A conical refrigerant coil comprises a plurality of pipes, each pipe arranged in a conical spiral and each pipe comprising a plurality of loops. At least some of the loops of each pipe of the plurality of pipes are arranged alternatingly along at least a portion of a length of the coil.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: October 24, 2023
    Assignee: Green Air, Inc.
    Inventors: Nathaniel S. Roady, Evan Paul Sachdeva
  • Patent number: 11724303
    Abstract: A method for producing a heat exchanger having tubes that are each received at a longitudinal end side in an associated header, the tubes and the headers are formed out of aluminium. The method may include soldering the tubes and the headers to one another to form a coolant-conducting channel structure, and cold-forming the heat exchanger following the soldering of the tubes to the headers such that strength is thereby increased.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: August 15, 2023
    Inventors: Cord Voelker, Matthias Goerdeler
  • Patent number: 11619427
    Abstract: A heat exchanger includes: first layers each including first flow channels that are microchannels; and second layers each including second flow channels that are microchannels. The first layers and the second layers constitute a lamination. Heat is exchanged by performing either of: liquid evaporation in the first flow channels and gas condensation in the second flow channels, or liquid evaporation in the second flow channels and gas condensation in the first flow channels. The lamination includes: a first liquid transport pore that is in fluid communication with the first flow channels; and a second liquid transport pore that is in fluid communication with the second flow channels.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: April 4, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yutaka Shibata, Mitsuharu Numata, Tomoki Hirokawa, Hirokazu Fujino
  • Patent number: 11519678
    Abstract: A heat exchanger includes a heat exchanger body having a plurality of layer portions each having a plurality of flow paths, and having a configuration in which adjacent layer portions are joined to each other, an inflow header being configured that a fluid is introduced into the inflow header to flow into the plurality of flow paths, an outflow header being configured that a fluid flowing through the plurality of flow paths merges, a cover portion covering all joint portions of the adjacent layer portions or all joint portions of components of layer portions, the joint portions exposed on an outer surface of the heat exchanger body at a portion other than a portion where the inflow header and the outflow header are disposed, and a lead-out portion connected to the cover portion and forming an internal flow path communicating with a space between the cover portion and the heat exchanger body. The lead-out portion is configured to emit a fluid to a predetermined region set in advance.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: December 6, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Kenichiro Mitsuhashi, Takashi Kogushi, Masato Yamada, Susumu Terada, Koji Noishiki
  • Patent number: 11349274
    Abstract: An amplifier assembly may include a first heat sink plate that includes a first channel, a second heat sink plate that includes a second channel, and an amplifier rod disposed in the first channel and the second channel. The second heat sink plate may be connected with the first heat sink plate such that the first channel and the second channel align. The amplifier rod may be connected to the first heat sink plate and the second heat sink plate by a non-eutectic solder.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 31, 2022
    Assignee: Lumentum Operations LLC
    Inventors: Christoffer Stroemberg, Susan Fung, Derek A. Tucker
  • Patent number: 11280555
    Abstract: Method for brazing or refilling comprising the following steps: providing at least one part (51) containing a metal or metal alloy, for example stainless steel, the part (51) having at least one face (59) defining a plurality of interstices (61) comprising at least two opposite edges separated on the face (59) by a maximum distance of not more than 250 micrometres; obtaining a coating (R) in contact with said face and comprising at least a first layer (85), located at least partially in the interstices, and a second layer (87) adjacent to the first layer, the first layer (85) comprising a first powder (A) containing a metal or metal alloy, the second layer comprising a mixture of a second powder (B) and a third powder (C), the second powder and the third powder being, respectively, different alloys suitable for brazing or refilling the part, and the solidus temperature TSC of the third powder being lower than the solidus temperature TSB of the second powder; heating the part and the coating at a heating te
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: March 22, 2022
    Assignee: STIRAL
    Inventors: Thierry Mazet, Pierre Billat
  • Patent number: 11225051
    Abstract: A multi-layered brazing sheet product having an aluminium core alloy layer provided on one or both sides with a brazing clad layer material, and an inter-layer material positioned between the aluminium core alloy layer and at least one of the brazing clad layer materials, wherein the brazing layer material(s) is made from an 4xxx-series aluminium alloy having 5% to 15% Si and up to 3% Mg, and wherein the inter-layer material is made from a 1xxx-series aluminium alloy having a purposive addition of Mg of 0.10% to 2.0%. The invention relates also to the use of the brazing sheet product in a fluxless controlled atmosphere brazing process.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: January 18, 2022
    Assignee: Aleris Rolled Products Germany GmbH
    Inventors: Bernd Jacoby, Steven Kirkham, Arne Schlegel
  • Patent number: 11033949
    Abstract: A manufacturing method of heat dissipation unit is disclosed. The heat dissipation unit is mainly composed of two titanium metal plate bodies. The titanium metal plate bodies are heat-treated, whereby the titanium metal plate bodies can be mechanical processed, shaped and surface-modified. Accordingly, the titanium metal can be freely shaped and provide capillary attraction. In this case, the titanium metal plate bodies can be used as the material of the heat dissipation unit instead of the conventional copper plate bodies to greatly reduce the weight and enhance the heat dissipation performance.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 15, 2021
    Assignee: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Kuei-Feng Chiang, Chih-Yeh Lin
  • Patent number: 10941992
    Abstract: A heat exchanger includes a core having a plurality of first layers for receiving a first fluid and at least one header arranged in fluid communication with the plurality of first layers. The at least one header is integrally formed ith the core via an additive manufacturing process. The header has a first microstructure and the core has a second, different microstructure.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 9, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Sergey Mironets, Vijay Narayan Jagdale, Colette O. Fennessy
  • Patent number: 10612861
    Abstract: A thermosiphon system includes a condenser, an evaporator, and a condensate line fluidically coupling the condenser to the evaporator. The condensate line can be a tube with parallel passages can be used to carry the liquid condensate from the condenser to the evaporator and to carry the vapor from the evaporator to the condenser. The evaporator can be integrated into the tube. The condenser can be constructed with an angled core. The entire assembly can be constructed using a single material, e.g., aluminum, and can be brazed together in a single brazing operation.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: April 7, 2020
    Assignee: Google LLC
    Inventors: Jeremy Rice, Jeffrey S. Spaulding, Huan D. Nguyen
  • Patent number: 10544991
    Abstract: A heat exchange plate for a plate heat exchanger includes a plate body having a first side and a second side opposed to the first side. A plurality of pins extends from the first side, and a plurality of recesses is formed in the second side for locating the pins of a similar heat exchange plate arranged adjacent thereto.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 28, 2020
    Assignee: HS MARSTON AEROSPACE LTD.
    Inventors: Mark F. Hill, Robert J. Housely
  • Patent number: 10251306
    Abstract: A water cooling heat dissipation structure includes a first and a second plate, a water cooling heat dissipation body, which is composed of a plurality of stacked heat dissipation members. The first plate, the heat dissipation members, and the second plate are in sequence stacked up into one and another to integrally form the water cooling heat dissipation structure by heat treatment. The water cooling heat dissipation body has a top side attached to one side of the first plate and a bottom side thereof attached to the second plate, so as to secure two sides of a flow passage of the water cooling heat dissipation body. A first and a second connecting portion is respectively provided on two sides of the first plate or the water cooling heat dissipation body, and the first and the second connecting portion is communicable with the flow passage.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 2, 2019
    Assignee: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Jung-Yi Chiu, Fu-Kuei Chang
  • Patent number: 10240515
    Abstract: A heat exchanger, in particular a supercharging air cooler for a motor vehicle engine, comprises a housing (11) provided with a heat exchange bundle (3), a collector (13) of a cooling liquid circulating in the heat exchange bundle (3), and a collector plate (15) forming a side wall of the heat exchanger housing (11) and of the cooling liquid collector (13). The collector plate (15) is provided with orifices (27) communicating with the cooling liquid circulation pipes of the bundle (3). The collector plate (15) comprises a flat connecting part (33a, 35a) fixed to the cooling liquid collector (13) opposite edges of the orifices (27). The flat connecting part (33a, 35a) is contiguous to at least one of the edges.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 26, 2019
    Assignee: VALEO SYSTEMES THERMIQUES
    Inventors: Nicolas Vallee, Yoann Naudin
  • Patent number: 10219408
    Abstract: A water-cooling radiator structure includes at least one first and at least one second sealing element and a first water-cooling radiator main body formed by a plurality of stacked first radiator elements. The second sealing element, the first radiator elements and the first sealing element are sequentially stacked and then integrally connected together through heat treating. The first and the second sealing element have one side connected to an upper and a lower side, respectively, of the first water-cooling radiator main body to seal a top and a bottom, respectively, of at least one first flow passage defined on the first water-cooling radiator main body. At least one first and second coupling section are optionally provided on the first sealing element or at two opposite ends of the first flow passage; and the first and the second coupling section are fluidly communicable with the first flow passage.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: February 26, 2019
    Assignee: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Jung-Yi Chiu, Fu-Kuei Chang
  • Patent number: 10175009
    Abstract: A sacrifice positive electrode layer is formed conveniently, efficiently, and accurately on the surface of a refrigerant distributor having a complicated shape. Further, during the formation of the sacrifice positive electrode layer, the strength in the surroundings of joined parts is prevented from being lowered by excessive heating.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: January 8, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hironori Kuriki, Kazuhiro Miya, Nobuaki Miyake, Akio Murata, Yoshihiko Satake
  • Patent number: 10151559
    Abstract: A hole is formed through the two or more parts, and a hollow tube is extended through the hole. A first plug is inserted into a first end of the tube, and a second end of the tube is pulled through the hole until the first plug is urged against the two or more parts. The second end of the tube is then cut so that the second end is flush with the two or more parts. A second plug is then inserted into the second end of the tub.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: December 11, 2018
    Inventor: Stephen Mark Higgins
  • Patent number: 10046420
    Abstract: Disclosed is a semi-amorphous, ductile brazing foil with a composition consisting essentially of NibalFeaCrbPcSidBeMof with approximately 30 atomic percent ?a?approximately 70 atomic percent; approximately 0 atomic percent ?b?approximately 20 atomic percent; approximately 9 atomic percent ?c?approximately 16 atomic percent; approximately 0 atomic percent ?d?approximately 4 atomic percent; e?approximately 2 atomic percent; f?approximately 5 atomic percent; and the balance being Ni and other impurities; where c+d+e<approximately 16 atomic percent.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: August 14, 2018
    Assignee: Metglas, Inc
    Inventors: William Coughlan, Eric Theisen
  • Patent number: 10022824
    Abstract: Disclosed is a semi-amorphous, ductile brazing foil with a composition consisting essentially of NibalFeaCrbPcSidBeMof with approximately 30 atomic percent?a?approximately 38 atomic percent; approximately 10 atomic percent?b?approximately 20 atomic percent; approximately 7 atomic percent?c?approximately 20 atomic percent; approximately 2 atomic percent?d?approximately 4 atomic percent; e?approximately 2 atomic percent; f?approximately 5 atomic percent; and the balance being Ni and other impurities; where c+d+e<approximately 16 atomic percent.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: July 17, 2018
    Assignee: Metglas, Inc.
    Inventors: William Coughlan, Eric Theisen
  • Patent number: 9976767
    Abstract: Air-to-air heat exchanger for ventilation systems with two countercurrent air flows disposed inside a cylindrical housing, a first air flow circulating inside the heat exchanger inside closed pipes, while the second air flow is in spaces between the pipes and cylindrical housing, and a fan moving the countercurrent air flows and disposed at one end of the cylindrical housing, with the fan including concentric inner and outer rings separated by a wall for moving air in opposite directions, a bunch of straight, parallel pipes whose end elements at the fan side are tightly gathered together, in the end of a cylindrical wall and, on the opposite side, in the end of a cylindrical pipe fitting, and between end elements, taper into middle sections between which are spaces, and a sleeve lining the inner wall of the housing at the middle sections and constricts the inner diameter of the housing.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: May 22, 2018
    Assignee: Roos GmbH
    Inventor: Christoph Roos
  • Patent number: 9631878
    Abstract: Provided is an aluminum alloy tube with superior corrosion resistance and a joining layer for brazing. In addition, a heat exchanger using a fin which utilizes a bare material of low cost and higher availability, rather than a clad material, is provided. A manufacturing method of an aluminum alloy tube, including the steps of forming a sacrificial anticorrosion layer comprising Zn, by ark spraying Zn with purity of 95% or more, onto a surface of aluminum alloy tube with a spraying amount of 3 to 10 g/m2 and a spraying speed of 150×103 to 350×103 mm/sec; and forming a joining layer for brazing by applying a joining material for brazing comprising a mixture obtained by mixing Si powder with purity of 95% or more and flux, onto a surface of the sacrificial anticorrosion layer, so that the amount of the Si powder is 1.2 to 3.0 g/m2, is provided.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 25, 2017
    Assignee: UACJ Corporation
    Inventor: Kensuke Mori
  • Patent number: 9440315
    Abstract: An aluminum alloy heat exchanger is produced by applying a coating material that is prepared by adding a binder to a mixture of an Si powder and a Zn-containing compound flux powder to a surface of an aluminum alloy refrigerant tube, assembling a bare fin that is formed of an Al—Mn—Zn alloy with the refrigerant tube, and brazing the refrigerant tube and the bare fin by heating in an atmosphere-controlled furnace, the refrigerant tube being an extruded product of an aluminum alloy that comprises 0.5 to 1.7% (mass %, hereinafter the same) of Mn, less than 0.10% of Cu, and less than 0.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: September 13, 2016
    Assignee: SUMITOMO LIGHT METAL INDUSTRIES, LTD.
    Inventors: Naoki Yamashita, Yasunaga Itoh, Yuji Hisatomi
  • Patent number: 9400112
    Abstract: A method for disassembling a bundled tube fuel injector includes decoupling an aft plate from a fuel distribution module of the bundled tube fuel injector, where the aft plate is disposed at a downstream end of the bundled tube fuel injector. The method also includes removing the aft plate from the bundled tube fuel injector to expose a portion of a plurality of pre-mix tubes so as to allow for inspection repair and/or replacement of one or more of the plurality of pre-mix tubes.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 26, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Mark Carmine Bellino, James Christopher Monaghan, Johnie F. McConnaughhay, Steven Charles Woods, Gregory Scott Means
  • Patent number: 9216467
    Abstract: An aluminum alloy extruded tube product for a heat exchanger assembly and made from an 1xxx-series aluminum alloys and including furthermore a purposive addition of one or more wetting elements selected from the group of: Bi 0.03% to 0.5%, Pb 0.03% to 0.5%, Sb 0.03% to 0.5%, Li 0.03% to 0.5%, Se 0.03% to 0.5%, Y 0.03% to 0.05%, Th 0.03% to 0.05%, and the sum of these elements being 0.5% or less.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: December 22, 2015
    Assignee: ALERIS ROLLED PRODUCTS GERMANY GMBH
    Inventors: Adrianus Jacobus Wittebrood, Steven Kirkham, Achim Bürger, Klaus Vieregge
  • Patent number: 9112193
    Abstract: Disclosed is a sealing assembly for metal components, wherein the sealing assembly has an electrical insulating effect, and wherein the sealing assembly comprises a ceramic layer and a base brazing material disposed thereon, to which germanium is added. The addition of germanium advantageously ranges from 0.1 to 5.0 mol %, and preferably between 0.5 and 2.5 mol %. A particular embodiment provides for the use of a brazing material which additionally comprises silicon in the range of >0 to 2.5 mol %, and preferably between 0.1 and 0.9 mol %. Furthermore, a brazing material having a further addition of 10 to 40% by volume of Al2TiO5, and preferably between 20 and 30% by volume of Al2TiO5, has proven to be particularly suited for the sealing assembly.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 18, 2015
    Assignee: FORSCHUNGSZENTRUM JUELICH GMBH
    Inventors: Hans-Rainer Zerfass, Dirk Federmann
  • Patent number: 9096916
    Abstract: An aluminum alloy brazing sheet including: a core material made of an aluminum alloy; and a cladding material clad on at least one side of the core material and made of an aluminum alloy having a potential lower than that of the core material. The cladding material is an outermost layer of the brazing sheet, wherein the cladding material is made of an aluminum alloy including 0.2 to 2.0 wt % of Mg, 0.5 to 1.5 wt % of Si, 1.0 to 2.0 wt %, preferably 1.4-1.8% of Mn, ?0.7 wt % of Fe, ?0.1 wt % of Cu, and ?4 wt % of Zn, ?0.3 wt % each of Zr, Ti, Ni, Hf, V, Cr, In, Sn and ?0.5 wt % total of Zr, Ti, Ni, Hf, V, Cr, In, Sn, the remainder being Al and unavoidable impurities.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: August 4, 2015
    Assignee: SAPA HEAT TRANSFER AB
    Inventors: Stefan Norgren, Linda Ahl
  • Patent number: 9033206
    Abstract: In order to enable a satisfactory fluxless brazing without needing flux or vacuum facilities, a brazing object including an aluminum alloy material provided with an Al—Si—Mg brazing filler metal is joined by the Al—Si—Mg brazing filler metal without the use of flux by heating the aluminum alloy material, when raising the temperature in a brazing furnace, at least in a temperature range of 450° C. to before melting of the filler metal under a first inert gas atmosphere having an oxygen concentration of preferably 50 ppm and following by heating at least at or above a temperature at which the filler metal starts to melt under a second inert gas atmosphere having an oxygen concentration of preferably 25 ppm and a nitrogen gas concentration of preferably 10% by volume or less.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 19, 2015
    Assignee: MITSUBISHI ALUMINUM CO., LTD.
    Inventors: Masakazu Edo, Hideyuki Miyake, Masatoshi Akiyama, Yuji Nomura, Norihiro Nose, Hiroki Amano
  • Patent number: 8991480
    Abstract: Disclosed is a heat exchanger comprising a boiling passage and cooling passage defined by opposite sides of metal walls. Layers of brazing material between the metal walls and a spacer member bond components of the heat exchanger together. It has been found that good quality brazed joints can be made by modifying the brazing thermal cycle to first employing a temperature of about 500° C. for an extended period of time and then elevating the temperature to about 590° to 600° C.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: March 31, 2015
    Assignee: UOP LLC
    Inventor: Thomas J. Godry
  • Patent number: 8960522
    Abstract: An automated brazing system by which an apparatus is conveyed along a path defined through a brazing zone is provided and includes first and second sets of burners disposed within the brazing zone at first and second opposing sides of the path, respectively, to heat the components of the apparatus substantially uniformly at the first and second sides and to heat the components of the apparatus substantially uniformly along the brazing zone, such that each side of each of the components is heated to a substantially similar temperature as each side of each of the other components.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: February 24, 2015
    Assignee: Carrier Corporation
    Inventors: Michael F. Taras, Zhihui Xiao, Luis Felipe Avila, Jeffrey L. Jones
  • Patent number: 8857699
    Abstract: The present invention relates to a method of brazing articles of stainless steel, which method comprises the following steps: step (i) applying an iron-based brazing filler material to parts of stainless steel; step (ii) optionally assembling the parts; step (iii) heating the parts from step (i) or step (ii) to a temperature of at least about 1000° C. in a non-oxidizing atmosphere, a reducing atmosphere, vacuum or combinations thereof, and heating the parts at the temperature of at least about 1000° C. for at least about 15 minutes; step (iv) providing articles having an average hardness of less than about 600 HV1 of the obtained brazed areas. The present invention relates also to brazed articles of stainless steel.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: October 14, 2014
    Assignee: Alfa Laval Corporate AB
    Inventors: Per Sjodin, Jens Rassmus
  • Patent number: 8841576
    Abstract: A method for producing a metal sheet with a welded-on tube which has at least partially curved sections, wherein the tube is guided by at least one guide element onto the sheet, is pressed thereon with at least one pressure element and is welded thereto at least at some points and wherein the tube is bent to form the curved sections. In order to achieve the welding-on in a simple manner even in the curved sections, it is provided that a bending is carried out in a plurality of discrete steps, wherein in individual steps firstly the tube with the at least one guide element is bent around a last created welding point and thereafter a new welding point is created. Furthermore, the invention relates to a device for carrying out the method.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 23, 2014
    Assignee: DTEC GmbH
    Inventors: Michael Dietl, Arnold Teufel
  • Patent number: 8814954
    Abstract: The method for manufacturing products having a metal surface by imparting microfeatures onto the metal surface. The method if further described as the steps of: creating a transfer tool from a microstructured intermediate fabricated from a microstructured prototype having microfeatures; and, transferring the microfeatures to said metal surface using the transfer tool.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: August 26, 2014
    Assignee: Hoowaki, LLC
    Inventors: Ralph A. Hulseman, David Mammarella, Andrew H. Cannon, William P. King
  • Patent number: 8800849
    Abstract: A technique for joining porous foam material, such as graphite, metal or ceramic foam, to a substrate is described. The substrate can be metal, a thermoset plastic or a composite material. The substrate has a melting point below that of the foam material. The two are joined together by using the foam to apply heat locally at the surface of the substrate. Some or all of the foam is heated to the appropriate temperature at or above the melting point of the substrate material. The foam and the substrate are then brought together, with the heat from the foam melting or softening the substrate material so that the substrate material infuses into the pores of the foam. As the foam cools below the melting point temperature, the substrate material solidifies to create a mechanical bond between the foam and the substrate.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 12, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: Eugene Jansen, Scott M. Maurer
  • Publication number: 20140083664
    Abstract: A heat exchanger having an improved structure which allows refrigerant tubes to be firmly bonded to heat exchange fins. The heat exchanger includes a plurality of refrigerant tubes spaced apart from each other, headers coupled to both end portions of the refrigerant tubes, and heat exchange fins coupled to the refrigerant tubes and disposed spaced apart from each other. Each of the heat exchange fins includes insertion grooves allowing the refrigerant tubes to be inserted thereinto, and bonding plates bonded to the refrigerant tubes. Each of the bonding plates includes a first bonding portion curved from one end portion thereof in a first direction and bonded to one surface of a corresponding one of the refrigerant tubes, and a second bonding portion curved from the other end portion thereof in a second direction and bonded to the other surface of the corresponding one of the refrigerant tubes.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Hwa CHOI, Dong Hyun Kim, Hayase Gaku, Yong Min Kim
  • Patent number: 8661675
    Abstract: In supplying flux to a brazing heat exchanger member, a given amount of the flux is stably adhered to brazing portions without interposing any substance which becomes unnecessary for the brazing such as binder. In manufacturing a heat exchanger member, particles containing flux are injected to a surface of a substrate made of aluminum or its alloy at a temperature lower than a melting point of the flux by 30° C. or more to collide against the surface at an average speed of 100 m/sec or higher to thereby mechanically adhere the particles thereto.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: March 4, 2014
    Assignee: Showa Denko K.K.
    Inventors: Kazuhiko Minami, Ichiro Iwai
  • Patent number: 8640766
    Abstract: A heat exchanger tube comprising an Al alloy extruded tube, and a flux layer including Si powder, Zn-containing flux, and binder formed on an outer surface of the Al alloy extruded tube, wherein an amount of the Si powder applied on the Al alloy extruded tube is in a range of 1 g/m2 or more and 5 g/m2 or less, an amount of the Zn containing flux applied on the Al alloy extruded tube is in a range of 3 g/m2 or more and 20 g/m2 or less, and the Si powder has a particle diameter distribution such that 99% particle diameter is 5 ?m or more and 20 ?m or less, and an amount of coarse particle having a diameter of not smaller than 5 times (D99) is less than 1 ppm by volume.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 4, 2014
    Assignee: Mitsubishi Aluminum Co., Ltd.
    Inventors: Masaya Katsumata, Yasunori Hyogo
  • Patent number: 8557383
    Abstract: A material composite has at least one region of copper or a copper alloy, at least one region of a predominantly graphitic material, and at least one boundary region between them. The boundary region has one or more carbides from the group of the IVb, Vb, VIb transition metals and one or more elements of the group consisting of Si, B, Al, Ge, Mn, Sn. In a preferred implementation of the invention, the composite is produced with a back-casting process.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: October 15, 2013
    Assignee: Plansee SE
    Inventors: Bertram Schedler, Thomas Huber, Thomas Friedrich, Dietmar Schedle, Anton Zabernig, Karlheinz Schreiber, Hans-Dieter Friedle
  • 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: 20130199767
    Abstract: A heat sink includes a plurality of layers being disposed substantially parallel with a surface of a heat source. The layers include a plurality of pin portions spaced apart from each other in a planar arrangement wherein the pin portions of the layers are stacked and bonded to form pin fins extending in a transverse direction relative to the heat source to sink heat. A compliant layer is disposed between the pin fins and a mechanical load. The compliant layer provides compliance such that the pin fins accommodate dimensional differences when interfacing with the heat source.
    Type: Application
    Filed: February 2, 2012
    Publication date: August 8, 2013
    Applicant: International Business Machines Corporation
    Inventors: John P. Karidis, Mark D. Schultz
  • Patent number: 8499995
    Abstract: A metal joining system having a first burner assembly configured to selectively heat a first zone and an assembly support at least partially vertically lower than at least a portion of the first heat zone and a first hood vertically above at least a portion of the assembly support.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 6, 2013
    Assignee: Trane International, Inc.
    Inventors: Riaan Oosthuysen, Richard Alan Stewart
  • Patent number: 8496161
    Abstract: The present invention relates to a device and method for brazing a heat pipe assembly with copper-silver alloy filler rings to improve heat dissipation efficiency of a heat pipe. The device comprises a brazing furnace and a conveyor. The brazing furnace comprises an open ended passage with a multi-stage brazing heater and cooler. The conveyor comprises an input bracket assembly, an output bracket assembly and a steel mesh belt. The method comprises steps of (A) providing multiple heat pipe components, (B) assembling the heat pipe components to form heat pipe assemblies, (C) injecting mixed gas, (D) turning on the multi-stage brazing heater and cooler, (E) placing the heat pipe assemblies on the conveyor, (F) brazing the heat pipe assemblies to form heat pipes, (G) cooling the heat pipes and (H) removing the heat pipes from the conveyor.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: July 30, 2013
    Inventor: Wen-Chih Liao
  • Patent number: 8453714
    Abstract: An exemplary heat dissipation device includes a fin assembly, a heat pipe, and a protective member. The fin assembly includes stacked fins and air passages between fins. Each fin includes a main body, an extending hole defined in the main body, and a flange extending from the main body around the extending hole. The heat pipe is received in the extending holes of the fins and abuts the flanges of the fins. The protective member includes a plurality pairs of elastic arms. Each pair of elastic arms is sandwiched between a free end of the flange of a corresponding fin and the main body of a corresponding adjacent fin to prevent solder associated with the heat pipe from flowing into the corresponding air passage.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 4, 2013
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Wei Li, Yi-Qiang Wu, Chun-Chi Chen
  • Patent number: 8261962
    Abstract: A method for brazing a metallic honeycomb body (1) for exhaust gas treatment, includes at least: a) pretreatment of a honeycomb body (1) at a temperature above 400° C.; b) cooling the honeycomb body (1); c) brazing the honeycomb body (1) at a temperature in a range of from 1050° C. to 1100° C. under atmospheric pressure; and d) cooling the honeycomb body (1). A suitable apparatus for carrying out the method is also provided.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 11, 2012
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Hans-Peter Caspar, Hubertus Kotthoff, Jörg Gutowski, Dietmar Chauchet, Ludwig Wieres
  • Publication number: 20120145772
    Abstract: The present invention relates to a device and method for brazing a heat pipe assembly with copper-silver alloy filler rings to improve heat dissipation efficiency of a heat pipe. The device comprises a brazing furnace and a conveyor. The brazing furnace comprises an open ended passage with a multi-stage brazing heater and cooler. The conveyor comprises an input bracket assembly, an output bracket assembly and a steel mesh belt. The method comprises steps of (A) providing multiple heat pipe components, (B) assembling the heat pipe components to form heat pipe assemblies, (C) injecting mixed gas, (D) turning on the multi-stage brazing heater and cooler, (E) placing the heat pipe assemblies on the conveyor, (F) brazing the heat pipe assemblies to form heat pipes, (G) cooling the heat pipes and (H) removing the heat pipes from the conveyor.
    Type: Application
    Filed: February 20, 2012
    Publication date: June 14, 2012
    Inventor: Wen-Chih Liao
  • Patent number: 8152047
    Abstract: An aluminum heat exchanger having increased resistance to galvanic corrosion. The exterior of one end of the aluminum tube or connector is coated with a metal or metal alloy. This end is brazed onto a copper or copper alloy inlet or outlet tube. The metal or metal alloy coating inhibits the formation of galvanic corrosion.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: April 10, 2012
    Assignee: Luvata Franklin, Inc.
    Inventor: Edward G. Rottmann
  • Patent number: 8123109
    Abstract: Disclosed is a heat exchanger comprising a boiling passage and cooling passage defined by opposite sides of metal walls. Layers of brazing material between the metal walls and a spacer member bond components of the heat exchanger together. An enhanced boiling layer (EBL) comprising metal particles bonded to each other and to a boiling side of the metal wall provides nucleate boiling pores to improve heat transfer. The EBL has a melting temperature that is higher than the melting temperature of the brazing material. Also disclosed is a process for assembling the heat exchanger.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: February 28, 2012
    Assignee: UOP LLC
    Inventors: Patrick S. O'Neill, Dennis P. Held, Sr., Thomas J. Godry