With Discrete Heat Transfer Means Patents (Class 165/181)
  • Patent number: 9631841
    Abstract: A refrigerant evaporator includes four core portions. A part of the refrigerant passes through a first core portion and a fourth core portion. The other part of the refrigerant passes through a second core portion and a third core portion. An exchanging unit exchanges the positions where the refrigerant flows. A passage through which the second core portion communicates with the third core portion includes a throttle passage in the intermediate tank unit. The throttle passage and the end portion of the intermediate tank unit reverse the refrigerant flow toward a partitioning member. Since the distribution of a liquid-phase refrigerant is adjusted by the throttle passage, a concentration of the liquid-phase refrigerant on a position in the vicinity of an outlet of the third core portion is suppressed. Accordingly, the concentration of the liquid-phase refrigerant in the core portions located downstream of the refrigerant flow is suppressed.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 25, 2017
    Assignee: DENSO CORPORATION
    Inventors: Naohisa Ishizaka, Norimasa Baba, Ichio Kamei, Kengo Kazari, Shota Chatani
  • Patent number: 9538673
    Abstract: An electronic device includes a housing, a mother board received in the housing, and a plurality of heat-generating members received in the housing. A dissipation area is formed in the housing, and a plurality of dissipation holes are defined in an outer surface of the dissipation area. Each dissipation hole is in a nanometer scale. The disclosure also supplies a method for manufacturing a housing of the electronic device.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: January 3, 2017
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Shyan-Juh Liu, Kar-Wai Hon, Sha-Sha Liu
  • Patent number: 9513070
    Abstract: A radiation member includes a base material; and a composite plating layer, formed on the base material, that includes a metal layer and two or more kinds of carbon materials, having different diameters from each other, dispersed in the metal layer such that to be provided with a plurality of protruding portions, each of the protruding portions being composed by a part of each of the carbon materials that are protruded from a surface of the metal layer.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 6, 2016
    Assignees: SHINKO ELECTRIC INDUSTRIES CO., LTD., SHINSHU UNIVERSITY
    Inventors: Yoriyuki Suwa, Kenji Kawamura, Susumu Arai
  • Patent number: 9502259
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a fin-shaped structure on the substrate; forming a cap layer on the fin-shaped structure; removing part of the cap layer on top of the fin-shaped structure; removing part of the fin-shaped structure; removing the remaining cap layer; and removing part of the remaining fin-shaped structure.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 22, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jhen-Cyuan Li, Shui-Yen Lu
  • Patent number: 9453691
    Abstract: A heat exchanger includes: a heat spreader plate; plural microchannels for directing heat transfer fluid over the heat spreader plate, wherein each microchannel has a first end and an opposite end, extends substantially parallel with each other microchannel, and has a continuous flow path between the first and opposite ends; a fluid inlet opening for the microchannels and positioned between the first and opposite ends, a first fluid outlet opening from each of the microchannel first ends; and an opposite fluid outlet opening from each of the microchannel opposite ends, the fluid inlet opening and the first and opposite fluid outlet openings providing that a flow fluid that passes into the plurality of microchannels, flows along the plurality of microchannels outwardly from the fluid inlet opening. A method of cooling a heat generating component uses a fluid heat exchanger that splits a mass flow of coolant.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 27, 2016
    Assignee: COOLIT SYSTEMS, INC.
    Inventor: Geoff Sean Lyon
  • Patent number: 9279622
    Abstract: An exemplary heat dissipation device includes a heat pipe and a fin unit. The heat pipe includes an evaporation section and a condensing section formed at opposite ends thereof, respectively. The fin unit includes plural stacked parallel fins. Each of the fins defines a through hole therein for receiving the condensing section of the heat pipe. A flange extends from a periphery of the through hole. The flange defines two slits to divide the flange into two separate portions. The slits communicate with the through hole. A compressible structure is formed in each fin at opposite sides of the through hole. The compressible structure is aligned with the slits such that when the fin is compressed along a direction transverse to the alignment, the compressible structure is compressed and the separate portions of the flange move toward each other and closely contact the condensing section of the heat pipe.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: March 8, 2016
    Assignees: FURUI PRECISE COMPONENT (KUNSHAN) CO., LTD., Foxconn Technology Co., Ltd.
    Inventors: Yi-Shih Hsieh, Rui-Wen Sun
  • Patent number: 9140502
    Abstract: A heat exchanger includes a plurality of channels and one or more active flow disruption members disposed at an entrance to the plurality of channels. The active flow disruption members are configured to induce unsteadiness in a flow through the plurality of channels to increase thermal energy transfer in the plurality of channels. A method for transferring thermal energy from a heat exchanger includes locating one or more active flow disruption members at an entrance to a plurality of channels of the heat exchanger. A flow is directed across the one or more active flow disruption members into the plurality of channels and an unsteadiness is produced in the flow via the one or more active flow disruption members. The unsteadiness in the flow increases the transfer of thermal energy between the heat exchanger and the flow.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: September 22, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Scott F. Kaslusky, Brian St. Rock, Jaeseon Lee, Yirong Jiang
  • Patent number: 9086245
    Abstract: A heat exchanger includes an auxiliary heat exchanger, which has plate-shaped first fins and a plurality of first heat transfer tubes, and a main heat exchanger which has plate-shaped second fins and a plurality of second heat transfer tubes. A plurality of burrs are present at specified intervals on edges of the first fins. The auxiliary heat exchanger and the main heat exchanger are so positioned that the edges of the first fins on which the burrs are present are in contact with edges of the second fins, and the edges having the burrs present thereon are positioned on the inner side.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 21, 2015
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaaki Kitazawa, Shigeharu Taira
  • Publication number: 20150136374
    Abstract: A heat exchanger assembly, comprising: heat exchanger pipework which comprises a plurality of elongate tube elements which extend in spaced relation and a plurality of pipe end couplings which fluidly connect open ends of respective tube elements, wherein the pipe end couplings each comprise a main body part to which the open ends of the respective tube elements are fixed, and an enclosure part which is fixed to the main body part and provides a closed fluid connection between the open ends of the respective tube elements; and a plurality of fins which extend in spaced relation and optionally substantially orthogonally to the tube elements, wherein the fins each comprise a sheet element, optionally a single, continuous sheet element, which includes a plurality of apertures through which extend respective ones of the tube elements, and a plurality of fin coupling elements which are located within respective ones of the fin apertures to interface the tube elements to the sheet elements.
    Type: Application
    Filed: July 31, 2014
    Publication date: May 21, 2015
    Inventors: Michael Alan Burns, Paul Andrew Burns
  • Publication number: 20150122471
    Abstract: According to the present invention, a heat exchanger comprises a coolant tube, and a fin having a collar coupled with the coolant tube and projected from a plate part, wherein the collar includes a call connection non-contacting part having an inner diameter larger than an outer diameter of the coolant tube, the call connection non-contacting part not contacting an outer surface of the coolant tube, and a call connection contacting part, an inner surface of the call connection contacting part contacting the outer surface of the coolant tube when the coolant tube is inserted, wherein a connecting member is positioned between an inner surface of the call connection non-contacting part and the outer surface of the coolant tube. Accordingly, without a tube expanding process for tube expanding the coolant tube, the coolant tube may be brought in tight contact with the fin. Further, the furnace brazing process is performed to minimize the defect rate.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventors: Juhyoung LEE, Seongwon BAE
  • Publication number: 20150114610
    Abstract: A heat exchange unit for a heat exchanger system includes a heat exchange tube. The heat exchange tube including a heat exchange tube inlet and one or more heat exchange fins coupled along the heat exchange tube. The heat exchange tube extends from the heat exchange tube inlet to a refrigerant return. A heat exchange jacket is interposed between the heat exchange tube and a unit housing. The heat exchange jacket includes a jacket passage in communication with the refrigerant return. A first product passage extends from the product inlet to a product return. The heat exchange fins turbulate agricultural product in the first product passage while heat is transferred from the agricultural product to refrigerant in one or more of the heat exchange tube or the heat exchange jacket. Heat is transferred from the agricultural product to the refrigerant through the heat exchange jacket in the second product passage.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Steve S. Jensen, Patrick A. Hansen, Warren L. Thompson, Nicholas O. Michael
  • Patent number: 9015943
    Abstract: The current invention provides a tube-grasping body for grasping an insert tube in a heat exchanger, and heat exchanger production methods and apparatuses utilizing the tube-grasping body, wherein the tube-grasping body enables to enlarge and connect an insert tube to a heat radiating fin for producing a heat exchanger, still keeping the total length of insert tubes at an almost same level even after the enlargement; and the tube-grasping body is connected at its exterior to the guide-pipe.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 28, 2015
    Assignee: Kyoshin Kogyo Co., Ltd.
    Inventor: Kenji Tokura
  • Publication number: 20150107811
    Abstract: A flat tube, in particular for a heat exchanger, is provided that has an areal material strip with two mutually opposite first and second side walls which are connected to one another via third and fourth side walls, wherein the third side wall is formed by two sections of the material strip that are laid one against the other in double-layer form, wherein an internal fin is arranged in the interior of the flat tube, which fin, at the end sides, bears against the third side wall and against the fourth side wall, and which fin, between the third side wall and the fourth side wall, is supported alternately against the first side wall and against the second side wall.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Christoph KAESTLE, Steffen MARX
  • Publication number: 20150092347
    Abstract: A cooling device includes a cooling member connected with a cooling pipe through which a cooling medium flows, a first fastening mechanism part provided at a first position on the cooling member and configured to fasten the cooling member and a substrate in a state where an electronic part to be cooled is sandwiched between the cooling member and the substrate, and a second fastening mechanism part provided at a second position on the cooling member that is different from the first position, the second position being located at a position where a first load exerted on the cooling member and a second load exerted on the cooling member maintain a balance in the electronic part, the first load being applied by the cooling pipe and the first fastening mechanism part, the second load being applied by the second fastening mechanism part.
    Type: Application
    Filed: September 12, 2014
    Publication date: April 2, 2015
    Inventors: Tsuyoshi So, Keita Hirai, Yoshinori Uzuka
  • Patent number: 8985194
    Abstract: A radiating fin and a method of manufacturing the same are disclosed. The radiating fin includes a main body having a first side and an opposite second side, and being provided with at least one through hole to extend between the first and the second side for a heat pipe to extend therethrough; and at least one extension being formed on at least one of the first and the second side of the main body to locate around the at least one through hole and axially project from the main body. The extension is crimped to form a plurality of circumferentially alternate ridge portions and valley portions for tightly pressing against an outer surface of the heat pipe, so as to firmly bind the radiating fin to the heat pipe. A thermal module can be formed by sequentially binding a plurality of the radiating fins to the heat pipe.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 24, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventor: Sheng-Huang Lin
  • Publication number: 20150075761
    Abstract: An exemplary heat sink includes a tube having a tube radius and first and second heat sink portions. Each heat sink portion includes an arcuate channel having a channel radius and a channel depth. Each channel radius is greater than the tube radius, and the sum of the channel depths is less than twice the tube radius. The heat sink is assembled by positioning the tube between the first and second heat sink portions, and urging the first and second heat sink portions toward one another, thereby deforming the tube.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 19, 2015
    Inventor: Stephen Stewart Hancock
  • Publication number: 20150075760
    Abstract: A heat exchanger includes a tube including a first aluminum alloy; and a plurality of fins in thermally conductive contact with the exterior of said tube, the fins including a second aluminum alloy comprising a base alloy selected from the group consisting of AA1100, AA8006, and AA8011 and zinc or magnesium in an amount sufficient to provide the second aluminum alloy with an electrochemical solution potential of at least 10 mV more negative than the electrochemical solution potential of the first aluminum alloy, as determined according to ASTM G69-97.
    Type: Application
    Filed: April 12, 2013
    Publication date: March 19, 2015
    Inventors: Ruoshuang Huang, Mary Teresa Lombardo
  • Publication number: 20150068718
    Abstract: An evaporator is provided with a refrigerant pipe, a cold storage case which has inner fins mounted therein, and air-side fins. The evaporator is characterized in that the cold storage case is provided with: a filling opening for filling the cold storage case with a cold storage material; a first flow passage connecting to the filling opening and extending in the same direction as the direction of inflow of the cold storage material; and a second flow passage connecting to the first flow passage and extending in the direction intersecting the first flow passage.
    Type: Application
    Filed: April 1, 2013
    Publication date: March 12, 2015
    Inventors: Aun Ota, Jun Abei, Eiichi Torigoe, Toshiya Nagasawa
  • Patent number: 8973647
    Abstract: A heat exchange fin in a heat exchanger is disposed between two refrigerant pipes spaced apart from each other includes a guide protrusion including first inclined planes inclined upward along opposite sides of a center line of a refrigerant pipe row in a symmetric fashion and second inclined planes inclined downward from upper ends of the first inclined planes, and the first inclined planes and the second inclined planes are provided with louver members, thereby improving heat exchange efficiency.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang Tae Seo, Hayase Gaku, Young Min Kim, Dong Ho Park
  • Publication number: 20150059400
    Abstract: The heat exchanger includes heat exchange units. Each of the heat exchange units includes a plurality of plate fins and a plurality of flat tubes. The plate fins are arranged spaced apart from one another at intervals so as to allow air to flow therebetween. The flat tubes each have an L shape by bending and inserted through the plate fins so that a refrigerant flows therethrough in a direction in which the plate fins are arranged. The heat exchange units are combined to each other so as to form a rectangular shape. Thus, heat exchange can be efficiently performed by increasing the mounting area.
    Type: Application
    Filed: April 26, 2012
    Publication date: March 5, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takashi Okazaki, Akira Ishibashi, Sangmu Lee, Takuya Matsuda
  • Publication number: 20150053388
    Abstract: Methods of fabricating cooling apparatuses are provided, which include providing a thermal transfer structure configured to couple to and cool one or more electronic components. The thermal transfer structure includes a thermal spreader, and at least one coolant-carrying tube coupled to the thermal spreader. The coolant-carrying tube(s) includes multiple tube lengths disposed substantially in a common plane, and an out-of-plane tube bend. The out-of-plane tube bend is couples in fluid communication first and second tube lengths of the multiple tube lengths, and extends out-of-plane from the multiple tube lengths disposed in the common plane. The first and second tube lengths may be spaced apart, with a third tube length disposed between them, and the coolant-carrying tube(s) further includes an in-plane tube bend which couples in fluid communication the third tube length and a fourth tube length of the multiple tube lengths.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Inventors: Amilcar R. ARVELO, Mark A. BRANDON, Levi A. CAMPBELL, Michael J. ELLSWORTH, JR., Randall G. KEMINK, Eric J. McKEEVER
  • Publication number: 20150027678
    Abstract: A heat exchanger and a method and apparatus for manufacturing the same are provided. The heat exchanger may include a refrigerant tube, through which a refrigerant may flow, at least one heat-exchange fin, into which the refrigerant tube may be inserted, a plurality of tube treatments provided on a surface of the refrigerant tube, and a plurality of fin treatments provided on a surface of the at least one heat-exchange fin.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 29, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyunsoo SONG, Jangseok Lee, Sung Jhee
  • Publication number: 20150016055
    Abstract: A piping connection structure includes: a pipe; and an elastic tube connected to the pipe, the tube including a connection into which the pipe is inserted and fitted, and a main body linked seamlessly with the connection, wherein the main body includes a projection that is formed circularly along a circumferential direction of the main body, and across the main body in an axial direction, and projects into an inside of the tube in a radial direction with respect to an inner periphery of the connection.
    Type: Application
    Filed: June 9, 2014
    Publication date: January 15, 2015
    Applicant: Fujitsu Limited
    Inventors: Yosuke TSUNODA, Masumi SUZUKI, Michimasa AOKI, Jie WEI
  • Publication number: 20150000328
    Abstract: A condenser and a refrigerator having the same, the condenser includes a refrigerant pipe, a plate fin coupled to one side portion of the refrigerant pipe, and a wave fin making contact with a rear surface of the plate fin. Through the structure as such, the condensation efficiency of the condenser may be enhanced, and furthermore, the condenser may be miniaturized, and thus is effective in utilizing space.
    Type: Application
    Filed: May 22, 2014
    Publication date: January 1, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki Hyun KIM, Myoung Hun Kim, Sinn Bong Yoon
  • Publication number: 20140367076
    Abstract: A heat exchanger for a vehicle air-conditioner includes a plurality of fins arranged parallel to one another and a plurality of heat transfer tubes extending parallel to one another through the fins. The fins are cut by a corrugated cutter from a band material having through-holes through which the heat transfer tubes are to extend. A row pitch Dp of the heat transfer tubes is expressed as “Dp=C+D+2W+28 for 0<?<D+W” where C is the thickness of the cutter, D is the outside diameter of the heat transfer tube, W is the width of a fin collar flange projecting outwards from the tip of a fin collar extending from the edge of each of the through-holes to one side of each of the fins, and 6 is the clearance between the cutter and the fin collar flange.
    Type: Application
    Filed: January 8, 2013
    Publication date: December 18, 2014
    Inventor: Taichi Uto
  • Publication number: 20140366573
    Abstract: A heat exchange tube for a refrigerant-flooded evaporator includes a tube body and a plurality of channels for conveying a cooling medium therethrough located in the tube body. One or more outer wall textural elements are included at the outer wall of the tube body to improve thermal energy transfer between the cooling medium and a volume of boiling refrigerant. A method of forming a heat exchange tube for a refrigerant-flooded evaporator includes urging a billet into an extrusion section and forming the billet into two tube halves including an outer wall and an inner wall having a plurality of channel halves. A textural element is formed at one or more of the outer wall and the inner wall via one or more rotating dies, and the two tube halves are joined to form the heat exchange tube.
    Type: Application
    Filed: November 28, 2012
    Publication date: December 18, 2014
    Inventors: Patrick Louis Clavette, Satyam Bendapudi, Jefferi J. Covington
  • Patent number: 8910703
    Abstract: A heat exchanger includes a plurality of flat tubes and at least one wavily folded fin disposed between a pair of the flat tubes. The fin includes a heat transfer portion having a folded portion joined to a planar portion of each of the pair of flat tubes, and a cut-and-raised portion. The cut-and-raised portion is formed by raising a periphery of a cutting line segment when a material of the fin is wavily folded. The cutting line segment is set in a vicinity of a hypothetical center line of the folded portion before the material of the fin is wavily folded. The cutting line segment is formed by a combination of cutting line segments intersecting with the hypothetical center line, or a combination of a cutting line segment intersecting with the hypothetical center line and a cutting line segment displaced with respect to the hypothetical center line.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: December 16, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Hyunyoung Kim, Haruo Nakata, Hirokazu Fujino, Toshimitsu Kamada
  • Publication number: 20140338877
    Abstract: The invention relates to a method for producing a heat exchanger, in particular for a motor vehicle, a method whereby fluid circulation tubes (3) are inserted into through holes in heat exchange fins (4) and the fluid circulation tubes (3) are subjected to expansion in such a way as to expand a contour (22) of said tubes (3) to ensure contact with said fins (4) at said through holes and, additionally, for at least one of said tubes (3), to deform a concave portion (24) of the contour (22) of said tube or tubes (3), in such a way as to correspondingly deform said through holes. The invention also relates to a device for implementing said method and an exchanger obtained by said method.
    Type: Application
    Filed: November 8, 2012
    Publication date: November 20, 2014
    Inventors: Patrick Boisselle, Samuel Bry
  • Publication number: 20140338876
    Abstract: A plate fin-tube heat exchanger is provided in which surfaces of flat tubes and fins each have concavities and convexities in which a length between one of peak portions that has the smallest height and one of trough portions that has the smallest depth is 10 ?m or larger.
    Type: Application
    Filed: January 11, 2012
    Publication date: November 20, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Keisuke Hokazono
  • Publication number: 20140332191
    Abstract: The heat exchanger (10) includes a ceramic matrix composite (12) (stable at temperatures up to 1,650° C.) surrounding and defining a hot fluid conduit (14). A hardenable material (18) having a high thermal conductivity is formed into a heat transfer layer (16) surrounding the ceramic matrix composite (12). A metal pipe (20) is coextensive with the heat transfer layer (16) and defines at least a portion (22) of at least one cool fluid passage (24, 34, 54) defined adjacent to and in heat exchange relationship with the heat transfer layer (16) so that a fluid passing through the cool fluid passage (24, 34, 54) absorbs heat passing through the heat transfer layer (16) from the hot fluid passing through the hot fluid conduit (14).
    Type: Application
    Filed: April 9, 2014
    Publication date: November 13, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: David C. JARMON
  • Patent number: 8859882
    Abstract: A heat rejection system includes a plurality of panel subassemblies and a solid state heat pipe flex joint. Each panel subassembly includes a fin, a solid state heat pipe manifold, a first solid state heat pipe tube operatively connected to the solid state heat pipe manifold and secured to the fin, a second solid state heat pipe tube operatively connected to the solid state heat pipe manifold adjacent to the first solid state heat pipe and secured to the fin. The solid state heat pipe flex joint operably connects the solid state heat pipe manifolds of two of the plurality of panel subassemblies in a hermetically sealed configuration, and is configured to permit repositioning of the two panel subassemblies relative to each other.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: October 14, 2014
    Assignee: Aerojet Rocketdyne of DE, Inc.
    Inventors: Cheng-Yi Lu, James A. McClanahan, Joseph P. Carroll, William Determan, Patrick E. Frye, Charles Thomas Kudija, Rick L. Howerton, Kenneth John Metcalf, Andrew J. Zillmer
  • Publication number: 20140299304
    Abstract: An aluminum tube-and-fin assembly for easy insertion into a manifold seal is provided. The assembly comprises a generally cylindrical, elongated tube and fins extending radially outward from the body. A bead is formed circumferentially around the tube end. A smooth, curved, circumferentially disposed bead corner is interposed between the bead and the tube end. The bead corner has a frustoconical curved shape and a radii of curvature of at least 0.2 mm.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 9, 2014
    Applicant: Caterpillar Inc.
    Inventors: Sudhakara Reddy Gopireddy, Neil Alan Terry, Mahesh Kumar Mokire, Sumeeth Sivanagere
  • Publication number: 20140299305
    Abstract: Systems and methods are disclosed which may include (1) providing a preselected and/or non-uniform airflow distribution output from a heat exchanger, (2) selectively directing air through a relatively lower resistance flowpath to manage an airflow characteristic and/or distribution downstream of the heat exchanger, (3) providing an HVAC system comprising a heat exchanger comprising a fin arrangement configured to cause relatively more air to contact a selected component that lies either upstream or downstream relative to the heat exchanger, and (4) receiving a relatively uniform airflow into a heat exchanger and outputting an airflow comprising a localized increased airflow rate. A heat exchanger comprising differentiated resistance flowpaths may selectively affect a direction and/or localized flow rate or distribution of an airflow exiting the heat exchanger.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: Trane International Inc.
    Inventors: Wayne Neal Kraft, Anosh Porus Wadia, Delbert Steven Christopher, Benjamin Farlen Hudgens
  • Publication number: 20140284036
    Abstract: The invention relates to a heat exchanger tube with a tube axis, a tube wall and with ribs extending around on the tube outer side. The ribs have a rib foot, rib flanks and a rib tip, wherein the rib foot projects substantially radially from the tube wall. The rib flanks are provided with additional structural elements which are arranged laterally on the rib flank. First material projections, which extend substantially in the axial and radial direction, adjoin second material projections which extend substantially in the axial and circumferential direction of the tube, wherein the first and second material projections have a common boundary line. According to the invention, the axial extent of the first material projections along this boundary line is less than the axial extent of the second material projections.
    Type: Application
    Filed: November 13, 2012
    Publication date: September 25, 2014
    Inventors: Achim Gotterbarm, Jean El Hajal, Andreas Beutler
  • Publication number: 20140262187
    Abstract: The invention relates to a heat exchanger comprising a block which has ribs and tubes and which is arranged between a first collecting box in particular for introducing a medium to be cooled and a second collecting box in particular for discharging said medium. Each collecting box is closed off by a base which has eyelets for receiving the tubes, and a trough-shaped circulating section for receiving the collecting box extends along the edge of the base. The base has an elevated contact region on at least one end face for the tube which lies directly opposite the end face in order to allow a stable structure of the heat exchanger with collecting boxes comprising a trough-shaped depression.
    Type: Application
    Filed: October 26, 2012
    Publication date: September 18, 2014
    Applicant: BEHR GMBH & CO. KG
    Inventors: Timo Gruber, Werner Helms, Chi-Duc Nguyen, Hicham Rouhana, Peter Wolfangel
  • Publication number: 20140261242
    Abstract: A corrugated indirect heating coil is disclosed. The heating coil includes an intake and an exhaust. Tubing connects the intake and exhaust together in fluid communication. The tubing includes a plurality of corrugations formed thereon to maximize surface area for heat exchange. The tubing is preferably wound into coils and supported by a frame.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Inventors: Spencer Rode, Phillip W. Stephens
  • Publication number: 20140231059
    Abstract: A heat exchanger assembly for an inert gas system includes a ram air inlet flange, a ram air outlet flange, and a core coupled to the ram air inlet flange and the ram air outlet flange. The core includes a fin assembly having a plurality of hot layers and ram air layers. The hot layers have an effective hot flow length, the ram air layers have an effective cold flow length, and the fin assembly has a no flow length. A ratio of the effective hot flow length to the effective cold flow length is between 9.23 and 10.32. A ratio of the no flow length to the cold flow length is between 21.86 and 25.23.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: HAMILTON SUNDSTRAND CORPORATION
  • Patent number: 8807093
    Abstract: A water heater has a tank having an upper and a lower domes which are penetrated by tubular flues in a 1-1-5 arrangement of a first flue connected to a second flue which in turn is connected to tertiary condensing flues. A gas-fired burner on the upper dome fires into the first flue. Both the first and second flue have heat exchange capacity enhanced by a multiplicity of rectangular metal fins welded in a helical arrangement. Some or all of the fins in the first flue may be stainless steel, while the remaining fins may be a different material, such as mild steel. The first and second flues are arranged to remove approximately 82-89 percent of the heat generated by the burner with minimal or no formation of condensate. Approximately 5.5-9 percent of the heat generated by combustion in the burner is removed in third flues where condensation takes place.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: August 19, 2014
    Assignee: Bock Water Heaters, Inc.
    Inventor: Michael B. Steinhafel
  • Publication number: 20140224462
    Abstract: An air-cooled and ventilated heat exchanger includes a fin and a plurality of heat transfer tubes. The fin has a plate-shaped part and a plurality of protruding parts. The plate-shaped part is positioned so that a plate-thickness direction intersects an air-flow direction generated by ventilation, and the protruding parts protrude from the plate-shaped part in the plate-thickness direction. The heat-transfer tubes are-inserted into the fin so as to intersect the air-flow direction. The protruding parts have a first protruding part and a second protruding part. An inclination angle of the first protruding part with respect to the plate-shaped part is a first angle, an inclination angle of the second protruding part with respect to the plate-shaped part is a second angle, and the second angle is different from the first angle. The second protruding part is placed adjacent to the first protruding part.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 14, 2014
    Inventors: Toshimitsu Kamada, Hirokazu Fujino, Shun Yoshioka, Aya Okuno
  • Publication number: 20140224463
    Abstract: A heat exchanger includes a plurality of heat exchanger units, each of which including header pipes (4,6) disposed in parallel to each other, a plurality of tubes (8) communicating with the header pipes and being disposed between the header pipes, fins (10) disposed between adjacent tubes, wherein a core portion (12) of the heat exchanger unit (2) is configured with the tubes and the fins layered therebetween; wherein the plurality of heat exchanger units are disposed in a direction that the tubes and the fins are arranged; and wherein the heat exchanger includes: fitting portions (16,18) which connect respective end portions (4a, 6a) of the header pipes of the heat exchanger units that are adjacent to each other, and side plates (20,22,40,42,46,48) which connect opposing end portions (12a) of respective core portions of the heat exchanger units that are adjacent to each other.
    Type: Application
    Filed: August 13, 2012
    Publication date: August 14, 2014
    Inventors: Yuuichi Matsumoto, Yusuke Iino
  • Publication number: 20140223956
    Abstract: A heat exchanger includes fins that are arranged in a direction orthogonal to a direction in which air flows and a heat transfer pipe that extends through the fins and that is bonded and fixed to the fins when the heat transfer pipe is radially expanded by a pipe-expanding method. Tall projections and short projections are provided on an inner surface of the heat transfer pipe. The tall projections are arranged in a circumferential direction and extend in an axial direction of the heat transfer pipe. The short projections are arranged between the tall projections and extend in the axial direction. Opposing side surfaces of the tall and short projections after the expansion of the heat transfer pipe are so inclined that when extensions are drawn from the side surfaces, the extensions cross each other in an inner region of the heat transfer pipe.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 14, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Sangmu Lee, Mitsuhiro Ishikawa, Akira Ishibashi, Takuya Matsuda
  • Publication number: 20140217190
    Abstract: A tubular section bar (100) for a biphasic?radiator comprising a tubular body (10) having a perimeter surface, a surface lug (11-21) protruding from at least one portion of said perimeter surface; each lug is perpendicular to the perimeter surface and has a height (H); two consecutive lugs are arranged at a reciprocal distance (D) and so that the relation between the reciprocal distance (D) and height (H) is greater or equal to 1.4 (D:H?1,4).
    Type: Application
    Filed: August 24, 2012
    Publication date: August 7, 2014
    Applicant: I.R.C.A. S.P.A. Industria Resistenze Corazzata eAf
    Inventors: Michele Peterle, Simone Visentin, Diego Trentin, Federico Zoppas
  • Publication number: 20140202674
    Abstract: A heat exchanger for heat exchange between air and a heat exchange medium includes a plurality of heat transfer conduits arranged parallel to each other as flow paths for the heat exchange medium and a plurality of fin members. The fin members are configured to provide: an air inlet end for air inflow, an air outlet end for air outflow, and an air flow path. The air flow path connects the air inlet end with the air outlet end and allows a heat exchange with the plurality of heat transfer conduits. Each fin member includes a plurality of undulation troughs coplanar with each other and connected together so as to define a water condensate flow path. Each water condensate flow path has a flat bottom which extends from the air inlet end to the air outlet end.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 24, 2014
    Applicant: DENSO THERMAL SYSTEMS S.P.A.
    Inventors: Edoardo BERTA, Pasquale NAPOLI, Massimo DAVTER, Maurizio ALESSIO
  • Publication number: 20140190675
    Abstract: The invention relates to a pipe (2) of a heat exchanger (1) comprising a strip (9) bent about itself such as to define an internal volume (10) of the pipe (2). The strip (9) comprises first and second edge portions (15, 16) joined such as to divide the internal volume (10) into at least two channels. The first edge portion (15) has two distinct parts, referred to as first and second contact parts (18, 22), in contact with the second edge portion (16) and a third contact part (20), located between the first and second contact parts (18, 22). The third contact part (20) is in contact with a zone of the strip (9) opposite the second edge portion (16) across the internal volume (10) of the pipe (2). The invention also relates to a heat exchanger (1) incorporating such pipes (2).
    Type: Application
    Filed: July 4, 2012
    Publication date: July 10, 2014
    Inventors: Christophe Denoual, Alain Pourmarin
  • 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: 20140158333
    Abstract: A heat exchanger and a method of manufacturing the same are provided. With the method, a tube may be inserted into a through hole formed in at least one fin coated with a filler metal, and the tube and a fin collar of the at least one fin may be joined through the filler metal by a brazing processing. A flange may not be formed on or at a top of the at least one fin collar, which protrudes vertically from a central longitudinal plane of the at least one fin. The tube may be made of aluminum (Al), and an interval between an outer circumferential surface of the tube and an inner circumferential surface of the fin collar of the at least one fin may be approximately 0.1 mm or less. Accordingly, contact resistance occurring when fabricating a fin-tube heat exchanger using a mechanical tube expansion method may be reduced, and heat transfer performance of the heat exchanger may be improved because grooves formed within the tube may not be deformed.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 12, 2014
    Inventors: JUHYOK KIM, Hongseong Kim, Hanchoon Lee, Sangyeul Lee
  • Publication number: 20140151008
    Abstract: Heat exchanger (100) has one or several substantially flat and rigid elongated tubing elements (10), whereby the tubing elements (10) tilted while being helically wound, forming a substantially overall cylindrical structure having a central longitudinal axis (X). Tubing elements (10) are tilted spirally curved around the central longitudinal axis (X). Several elements are interleaved in a structure. The tubing elements (10) have a plurality of fins (60) on at least one of the outer surfaces (42, 52) of first (40) and/or second (50) side wall. Fins (60) are at least partially covered by a covering wall (70, 80). The tubing elements (10) are at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, an overall cylindrical structure and/or a cylindrical shape.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Inventor: Carlos Quesada Saborio
  • Publication number: 20140151007
    Abstract: A tubing element for a heat exchanger is at least partially a rigid elongated tubing having a first end, a second end, a first side wall and a second side wall. First and second side walls are substantially parallel to each other. The distance between first side wall and second side wall is considerably smaller than the width of first side wall and second side wall, resulting in a substantially overall flat tubing structure with connection walls on both sides. The tubing element has a plurality of fins on at least one of the outer surfaces of the first side wall and/or of the second side wall. Fins define an angle enclosed by the fins and a connection wall. A heat exchanger, use of a tubing element, use of a heat exchanger and method of manufacturing of a tubing element to manufacture at least partially a heat exchanger are included.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Inventor: Carlos Quesada Saborio
  • Patent number: 8732952
    Abstract: A serpentine fin for assembly between tubes in a heat exchanger core, and a method of making same from a metal strip. The strip edges have a hem comprising a double thickness of the strip material extending inward from the edge. The metal strip has folds extending across the strip width such that the strip forms a serpentine shape, with the folds being adapted to contact the tubes in the heat exchanger core. Multiple rows of split louvers are disposed between adjacent folds. Each row of split louvers comprises louvers having openings extending in the direction of the strip length and formed in a pair of adjacent, spaced louver banks. Ribs are disposed parallel to the louver openings adjacent the strip edges and in at least one center portion of the strip between the strip edges, and extend across the pair of louver bank.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 27, 2014
    Assignee: Vista-Pro Automotive, LLC
    Inventor: John A. Kolb
  • Publication number: 20140138050
    Abstract: A dry heat exchanger coil having a plurality of straight inner tubes connected by a plurality of return bends. The return bends are located outside of the air flow passing over the coil. The inner tubes are situated within a corresponding outer or “safety” tube. The outer tubes do not contain and are not connected to return bends, but the ends of the outer tubes are located outside of the air flow path. Leaks in the inner tubes are captured by the outer tubes and the leaking fluid will flow in the space between the inner and outer tubes, flow out the end of the outer tube, to be captured in a drip pan at the bottom of the coil housing. Leaks occurring in the return bends will also be captured in drip pan.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 22, 2014
    Applicant: Evapco, Inc.
    Inventor: Evapco, Inc.