US3901312A - Heat exchangers and method of making same - Google Patents

Heat exchangers and method of making same Download PDF

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Publication number
US3901312A
US3901312A US438750A US43875074A US3901312A US 3901312 A US3901312 A US 3901312A US 438750 A US438750 A US 438750A US 43875074 A US43875074 A US 43875074A US 3901312 A US3901312 A US 3901312A
Authority
US
United States
Prior art keywords
fins
heat exchanger
openings
tubular member
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US438750A
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English (en)
Inventor
Stephen F Pasternak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peerless of America Inc
Original Assignee
Peerless of America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peerless of America Inc filed Critical Peerless of America Inc
Priority to US438750A priority Critical patent/US3901312A/en
Priority to DE2453266A priority patent/DE2453266C2/de
Priority to JP49140612A priority patent/JPS50108660A/ja
Application granted granted Critical
Publication of US3901312A publication Critical patent/US3901312A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/26—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/068—Shaving, skiving or scarifying for forming lifted portions, e.g. slices or barbs, on the surface of the material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube

Definitions

  • Another object of the present invention is to enable a novel heat exchanger to be afforded in a novel and expeditious mariner wherein secondary heat transfer surfaces may be formed by cutting or gouging them out of tubular stock to afford fins having internal openings extending therethrough.
  • An object ancillary to the foregoing is to enable such heat exchangers to be afforded in a novel and expeditious manner with elongated openings through the fins thereof.
  • a further object of the present invention is to increase the amount of secondary heat transfer surface on finned, heat exchangers in a novel and expeditious manner.
  • Another objecfiof the present invention is to afford a novel heat exchanger of the finned type, which is practical and efficient in operation, and which may be readily and economically produced commercially.
  • FIGS. 1-4 of the drawings A heat exchanger element or heat transfer element 1, embodying the principles of the present invention, is shown in FIGS. 1-4 of the drawings as one end portion of an elongated tubular member 2, to illustrate the presently preferred embodiment of the present invention, and to illustrate the presently preferred method of making heat exchangers in accordance with the principles of the present invention.
  • the tubular member 2 shown in the drawings is substantially rectangular in transverse cross-section, embodying a top wall 7 and a bottom wall 8 disposed in substantially parallel relation to each other, and two oppositely disposed side walls 9 and 10 extending between respective side edges of the walls 7 and 8 in substantially perpendicular relation thereto.
  • the walls 7 and 8 are substantially flat, for a purpose which will be discussed in greater detail hereinafter.
  • the side walls 9 and 10 may be of any suitable shape, but I prefer that the outer faces thereof be convexoutwardly in shape, as shown in FIGS. 1, 3 and 4.
  • the compression of the fin material during the cutting operation causes the width of the fins to be substantially less than the length of cut, commonly being in the nature of one-half of the length of cut, so that, for example, to afford fins 4 with a width of one-half inch, the length of cut along the surface 21 would be substantially 1 inch.
  • the fins 4 may be of any suitable thickness, and the thickness of fins of the type of the fins 4 may commonly be in the range of twothousandths of an inch to one-eight of an inch when the fins 4 are formed in the above described manner.
  • the tubular member 2 may be served transversely to its length at any points between points A and C to thereby afford a finished heat exchanger element having fins 4 extending substantially the full length thereof.
  • the formation of the fins 4 may be commenced inwardly of the end portion Aof the tubular member 2, and the tubular member 2- may be severed outwardly to the left, as viewed in FIG. 2, of the last formed fin 4 to thereby afford end portions which project outwardly from the outermost fins 4, to afford connecting members at each end of the finished heat exchanger.
  • the wall portion 7 and 8 of the tubular member 2 disposed outwardly of the aforementioned outermost fins 4, preferably are reduced in thickness to that of the wall portions 7a and 8a by suitable means, such as, for example, grinding, to thereby afford a smooth-walled end portion for the completed heat exchanger, with the thickness of the top and bottom walls of the end portions being the same as that of the walls 7a and 8a of the heat exchanger.
  • FIG. 5 of the drawings a heat exchanger 1a is shown to illustrate a modified form of the present invention, parts which are the same as parts in theheat exchanger 1 shown in FIGS. 14 being indicated by the same reference numerals, and parts which are similar to parts of the heat exchanger being indicated by the same reference numerals, with the suffix a added thereto.
  • the round openings 20 and the substantially oblong openings 20a are shown herein merely by way of illustration, and not by way of limitation, and openings having other suitable transverse cross-sectional shapes, such as, for example, triangular or square, may be used without departing from the purview of the. present invention.
  • the heat transfer surface of the secondary heat transfer surfaces afforded by the fins 4 and 4a is substantially increased.
  • openings 22 and 22a afford passageways through which air or other suitable working fluid may pass transversely through the fins 4 and 4a, respectively.
  • the outer faces 18 of the top walls 7 and 8 of the tubular members 2 and 2a are substantially flat. It has been found that when this is true, and fins, such as the fins 4 and 4a are formed in the manner heretofor described, uniplanar relation of the outer edges 6 of the fins 4 on each side of the heat exchanger elements 1 and la is substantially insured. As will be appreciated by those skilled in the art, this is of importance, particularly, when the heat exchanger elements are to be disposed in stacked or closely spaced relation to each other.
  • the present invention affords a novel method of forming a finned heat ex- 7 changer, having openings extending through the fins.
  • the present invention affords a novel heat exchanger which is practical and efficient in operation, and which may be readily and economically produced commercially.
  • a heat transfer element comprising a. an elongated tubular member,
  • tubular member having an integral side wall having a substantially rectangular-shaped outer face
  • a plurality of fins 1. spaced from each other longitudinally of said wall, and 2. projecting outwardly from said outer face, d. said fins having 1. elongated base portions a. integral to said wall, b. extending transversely to the length of said wall and of said tubular member, 2. outer longitudinal edges, and 3. a plurality of openings therethrough a. spaced from each other transversely to the length of said wall, and b. spaced from said outer longitudinal edges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US438750A 1974-02-01 1974-02-01 Heat exchangers and method of making same Expired - Lifetime US3901312A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US438750A US3901312A (en) 1974-02-01 1974-02-01 Heat exchangers and method of making same
DE2453266A DE2453266C2 (de) 1974-02-01 1974-11-09 Einstückiges Rekuperatorelement und Verfahren zu seiner Herstellung
JP49140612A JPS50108660A (de) 1974-02-01 1974-12-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US438750A US3901312A (en) 1974-02-01 1974-02-01 Heat exchangers and method of making same

Publications (1)

Publication Number Publication Date
US3901312A true US3901312A (en) 1975-08-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US438750A Expired - Lifetime US3901312A (en) 1974-02-01 1974-02-01 Heat exchangers and method of making same

Country Status (3)

Country Link
US (1) US3901312A (de)
JP (1) JPS50108660A (de)
DE (1) DE2453266C2 (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349949A (en) * 1980-11-05 1982-09-21 Kritzer Richard W Method of making heat exchangers
GB2160636A (en) * 1982-06-10 1985-12-24 Peerless Of America Heat exchange element
US4637111A (en) * 1982-06-10 1987-01-20 Peerless Of America, Inc. Process of making heat exchangers
US4648441A (en) * 1984-10-30 1987-03-10 U.S. Philips Corporation Heat exchanger comprising a finned pipe
US4794985A (en) * 1987-04-29 1989-01-03 Peerless Of America Incorporated Finned heat exchanger tubing with varying wall thickness
US5603376A (en) * 1994-08-31 1997-02-18 Fujitsu Network Communications, Inc. Heat exchanger for electronics cabinet
US5967228A (en) * 1997-06-05 1999-10-19 American Standard Inc. Heat exchanger having microchannel tubing and spine fin heat transfer surface
US6349762B2 (en) * 1999-10-04 2002-02-26 Showa Denko K.K. Heat sink
US20050193559A1 (en) * 2004-01-28 2005-09-08 Hideyuki Miyahara Radiator and method of manufacturing the same
US20050230081A1 (en) * 2004-04-20 2005-10-20 Via Technologies, Inc. Heat dissipation device and manufacturing method thereof
US20060175042A1 (en) * 2005-02-08 2006-08-10 Kuo Yung-Pin Heat dispensing device
JP2007003164A (ja) * 2005-06-27 2007-01-11 Nakamura Mfg Co Ltd 平板状ヒートパイプまたはベーパーチャンバー、および、その形成方法
US20070012431A1 (en) * 2005-06-27 2007-01-18 Hideyuki Miyahara Plate type heat exchanger and method of manufacturing the same
US20080295561A1 (en) * 2007-05-26 2008-12-04 Hideyuki Miyahara Method of forming a recess in a work
CN104048542A (zh) * 2014-06-25 2014-09-17 上海理工大学 平齿翅片扁圆换热管
CN104048545A (zh) * 2014-06-25 2014-09-17 上海理工大学 矩形平齿翅片管及矩形平齿翅片管换热管束
CN104075606A (zh) * 2014-06-25 2014-10-01 上海理工大学 扭齿翅片扁圆换热管
US20190323787A1 (en) * 2018-04-19 2019-10-24 United Technologies Corporation Mixing between flow channels of cast plate heat exchanger
US11389911B2 (en) * 2019-11-13 2022-07-19 Nakamura Mfg. Co., Ltd. Method of manufacturing heat sink and heat sink

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113300A (ja) * 1986-10-30 1988-05-18 Showa Alum Corp 熱交換器
DE4131332A1 (de) * 1991-09-20 1993-03-25 Behr Gmbh & Co Extrudiertes leichtmetallprofil und werkzeug zur herstellung eines halbzeugs fuer das leichtmetallprofil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247583A (en) * 1962-03-21 1966-04-26 Continental Can Co Production of externally finned sheet stock
US3269459A (en) * 1963-03-12 1966-08-30 Popovitch Dragolyoub Extensive surface heat exchanger
US3540530A (en) * 1968-06-12 1970-11-17 Peerless Of America Gradated heat exchange fins

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA934750A (en) * 1970-05-05 1973-10-02 M. O'connor Joseph Heat transfer element and method of making the heat transfer element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247583A (en) * 1962-03-21 1966-04-26 Continental Can Co Production of externally finned sheet stock
US3269459A (en) * 1963-03-12 1966-08-30 Popovitch Dragolyoub Extensive surface heat exchanger
US3540530A (en) * 1968-06-12 1970-11-17 Peerless Of America Gradated heat exchange fins

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349949A (en) * 1980-11-05 1982-09-21 Kritzer Richard W Method of making heat exchangers
GB2160636A (en) * 1982-06-10 1985-12-24 Peerless Of America Heat exchange element
US4637111A (en) * 1982-06-10 1987-01-20 Peerless Of America, Inc. Process of making heat exchangers
US4648441A (en) * 1984-10-30 1987-03-10 U.S. Philips Corporation Heat exchanger comprising a finned pipe
US4794985A (en) * 1987-04-29 1989-01-03 Peerless Of America Incorporated Finned heat exchanger tubing with varying wall thickness
US5603376A (en) * 1994-08-31 1997-02-18 Fujitsu Network Communications, Inc. Heat exchanger for electronics cabinet
US5967228A (en) * 1997-06-05 1999-10-19 American Standard Inc. Heat exchanger having microchannel tubing and spine fin heat transfer surface
US6349762B2 (en) * 1999-10-04 2002-02-26 Showa Denko K.K. Heat sink
US7320177B2 (en) * 2004-01-28 2008-01-22 Nakamura Seisakusho Kabushikigaisha Radiator and method of manufacturing the same
US20050193559A1 (en) * 2004-01-28 2005-09-08 Hideyuki Miyahara Radiator and method of manufacturing the same
US20050230081A1 (en) * 2004-04-20 2005-10-20 Via Technologies, Inc. Heat dissipation device and manufacturing method thereof
US20060175042A1 (en) * 2005-02-08 2006-08-10 Kuo Yung-Pin Heat dispensing device
US20070012431A1 (en) * 2005-06-27 2007-01-18 Hideyuki Miyahara Plate type heat exchanger and method of manufacturing the same
JP2007003164A (ja) * 2005-06-27 2007-01-11 Nakamura Mfg Co Ltd 平板状ヒートパイプまたはベーパーチャンバー、および、その形成方法
US7770633B2 (en) * 2005-06-27 2010-08-10 Nakamura Seisakusho Kabushikigaisha Plate type heat exchanger and method of manufacturing the same
US20080295561A1 (en) * 2007-05-26 2008-12-04 Hideyuki Miyahara Method of forming a recess in a work
US8702359B2 (en) * 2007-05-26 2014-04-22 Nakamura Seisakusho Kabushikigaisha Method of forming a recess in a work
CN104048542A (zh) * 2014-06-25 2014-09-17 上海理工大学 平齿翅片扁圆换热管
CN104048545A (zh) * 2014-06-25 2014-09-17 上海理工大学 矩形平齿翅片管及矩形平齿翅片管换热管束
CN104075606A (zh) * 2014-06-25 2014-10-01 上海理工大学 扭齿翅片扁圆换热管
US20190323787A1 (en) * 2018-04-19 2019-10-24 United Technologies Corporation Mixing between flow channels of cast plate heat exchanger
US11209224B2 (en) * 2018-04-19 2021-12-28 Raytheon Technologies Corporation Mixing between flow channels of cast plate heat exchanger
US11389911B2 (en) * 2019-11-13 2022-07-19 Nakamura Mfg. Co., Ltd. Method of manufacturing heat sink and heat sink

Also Published As

Publication number Publication date
JPS50108660A (de) 1975-08-27
DE2453266C2 (de) 1982-11-11
DE2453266A1 (de) 1975-08-07

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