US3746086A - Heat exchangers - Google Patents

Heat exchangers Download PDF

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Publication number
US3746086A
US3746086A US00175675A US3746086DA US3746086A US 3746086 A US3746086 A US 3746086A US 00175675 A US00175675 A US 00175675A US 3746086D A US3746086D A US 3746086DA US 3746086 A US3746086 A US 3746086A
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US
United States
Prior art keywords
rows
fins
base portions
heat transfer
transfer element
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
US00175675A
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English (en)
Inventor
S 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
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Peerless of America Inc
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Publication date
Application filed by Peerless of America Inc filed Critical Peerless of America Inc
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Publication of US3746086A publication Critical patent/US3746086A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • 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
    • 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
    • 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
    • Y10T29/49385—Made from unitary workpiece, i.e., no assembly

Definitions

  • This invention relates to heat exchangers and, more particularly, to heat exchangers of thetype embodying outwardly projecting fins.
  • Another object of the present invention is to afford a novel finned heat exchanger, wherein the fins are formed by cutting or gouging them from wall portions of the heat exchanger.
  • Another object is to afford a novel finned heat exchanger wherein the fms are formed by cutting or gouging them from the ribs of ribbed tubular stock.
  • Heat exchangers embodying spines formed from outwardly projecting ribs on a tubularrnember have been disclosed in R. W. Kritzer United States Letters Patent Nos. 3,202,212 and 3,229,722. Heatexchangers of the type disclosed in the aforementionedKritzer patents have proven to be very effective. However, it is an object of the present invention to afford improvements over heat exchangers of the type disclosed in the aforementioned Kritzer patents.
  • Another object of the present invention is to afford a novel finned heat exchanger having fins in the form of outwardly projecting spines constituted and arranged in a novel and expeditious manner.
  • Another object of the present invention is to afford.
  • FIG. 1 is a perspective view of a length of heat exchanger element embodying the principles of the present invention
  • FIG. 2 is a fragmentary, side elevational view of a portion of the heat exchanger element shown in FIG.
  • FIG. 3 is an enlarged, somewhat diagrammatic, fragmentary, sectional view taken substantially on the line 3-3 in FIG. 1;
  • FIG. 4 is a perspective view similar to FIG. 1, but showing a modified form of the present invention.
  • FIG. 5 is a fragmentary, side elevational viewof a portion of the heat exchanger element shown in FIG. 4.
  • the heat exchanger element 1 preferably is formed from a suit able length of tubular stock, such as the tubular member 2, working from one end portion A of the tubular member 2,. FIG. 1, toward the other end B thereof, and severing the heat exchanger 1 from the remainder B-C of the tubular member 2 upon completion of the forming ,of the desired length of heat exchanger, such as, for example, the length A-C.
  • Theheat, exchanger element 1 embodies, in general, an elongated tubular body portion 3 having elongated fins 4, 5 and 6 projecting outwardly, in rows, from elongated, outwardly projecting ribs 7, 8 and 9, respectively, which extend longitudinally of the tubular member 2 in parallel spaced relation to each other.
  • Each of the fins 4-6 embodies an elongated base portion 10 and an outer free end portion 11.
  • the fins 4-6 are formed from the tubular body member 2, and the base portions 10 thereof are integral with the adjacent, underlying portion of the-tubular body portion 3 of the finished heat exchanger.
  • the tubular'member 2 shown in the drawings is substantially rectangular in transverse cross section, embodying a top wall 12 and a bottom wall 13 disposed in substantially parallel relation to each other, and two oppositely disposed side walls 14 and 15 extending between the respective longitudinal edges of the walls 12 and 13 in substantially perpendicular relation thereto. Openings 16 extend longitudinally through the tubular member 2.
  • the tubular member 2 is shown in FIGS. l-3 as being rectangular in transverse cross section and as having a plurality of openings 16 extending therethrough merely by way of illustration and not by way of limitation, and tubular members having shapes other than rectangular and having a single opening extending longitudinally therethrough may be afforded without departing from the purview of the present invention.
  • the tubular member 2, from which the heat exchanger 1, shown in the drawings, is made may be formed of any suitable material, such as, for example, aluminum, and, preferably, in addition to the three ribs 7-9, which project outwardly from the top wall 12, embodies three similar ribs 17, 18 and 19 on the bottom wall.l3.
  • FIGS. l-3 of the heat exchanger 1 a tubular member such asthe tubular member 2, and embodying the ribs 7-9 and 17-19 extending the full length thereof, may first be. formed. Thereafter, the fins 4-6 may be successively formed on the ribs 7-9 from one end portion of the tubular member 2, such as the end portion A, toward the other end B thereof. The fins 4-6 may be cut or gouged from theribs 7-9, respectively, from which they extend, by means of a suitable cutting tool, such as the cutting tool 20 shown in FIG. I.
  • a suitable cutting tool such as the cutting tool 20 shown in FIG. I.
  • the cutting tool 20 embodies three elongated cutting surfaces 21, 22 and 23, disposed in laterally offset relation to each other in position to be moved longitudinally of the ribs 7-9, respectively.
  • the two cutting surfaces 21 and 23, which are the two outermost cutting surfaces on the cutting tool 20, are disposed in uniplanar relation to each other.
  • the cutting edges 24 of the cutting surfaces 21-23, which are disposed at the lower ends of the respective cutting surfaces 21-23, are disposed in unilinear relation to each other.
  • the cutting surface 22, which is disposed between the cutting surfaces 21 and 23, projects outwardly to the right, as viewed in FIG. 1, from the cutting edge 24 thereof a greater distance than the cutting surfaces 21 and 23 project from their respective cutting edges 24, to thereby dispose the main body portion of the cutting surface 22 forwardly of the cutting surfaces 21 and 23 in the direction of travel of the cutting tool 20 during a cutting operation, which is from left to right, as viewed in FIG. 1.
  • the cutting surfaces 21-23 are of such width, and are so disposed relative to each other, that each may be moved longitudinally along a respective one of the ribs 7-9 during a cutting operation of the tool 20.
  • the cutting tool 20 In the operation of the cutting tool 20, it reciprocates through a series of spaced cutting strokes from the end A toward the end B of the tubular member 2, with the cutting surfaces 21-23 cutting and raising fins 4-6 from the ribs 7-9, respectively.
  • FIG. 3 which is a somewhat diagrammatic view through the rib 8 and one of the fins 5 thereon, the fins 4-6 are formed on each of the ribs 7-9, respectively, by passage of the cutting surfaces 21-23, respectively, along successive, parallel paths of travel, such as the paths of travel 25 and 26 shown on the rib 8 in FIG. 3.
  • the cutting operation causes the fins 4-6 to compress longitudinally so that, as a practical matter, the tapers 27 substantially disappear on fins of usual thickness, to thereby afford a relatively smooth-sided appearance for the outer ends of the fins 4-6 similar to that shown in FIGS. 1 and 2.
  • the main body portion of the cutting surface 22 is disposed forwardly of the main body portions of the cutting surfaces 21 and 23.
  • the outer free end portions 11 of each of the fins 5 on the central rib 8 projects forwardly away from the end B of the tubular member 2 a greater distance than the fins 4 and 6 on the ribs 7 and 9, respectively.
  • the tubular member 2 may be severed transversely to its length at the point C to thereby afford a finished heat exchanger element having fins 4-6 spaced along the length thereof.
  • the heat exchanger 1 is shown in the drawings as having fins 4-6 projecting outwardly from only the top wall 12 thereof, and, if desired, it may be so formed. However, if desired, fins, similar to the fins 4-6 may be cut from other sides of the tubular member 2, such as, for example, from the ribs 17-19 on the bottom wall 13.
  • FIGS. 4 and 5 a modified form of the present invention is shown, and parts which are the same as parts shown in FIGS. 1-3 are indicated by the same reference numerals, and parts which are similar to, but substituted for parts shown in FIGS. 1-3 are indicated by the same reference numerals with the suffix a added thereto.
  • the heat exchanger 1a shown in FIGS. 4 and 5 is the same in construction as the heat exchanger shown in FIG. 1, except that the bases 10 of the fins 4 and 6 disposed on the ribs 7 and 9 are not in alignment with the bases 10a of any of the fins 5a disposed on the rib 8.
  • the entire cutting surface 22a, including the cutting edge 24a thereof is disposed forwardly of the cutting surfaces 21 and 23.
  • the cutting surface 22a projects forwardly of the cutting surfaces 21 and 23 half the distance that the fins 4-6 are spaced longitudinally of the ribs 7-8, so that the immediately transversely adjacent fins 4 and 6 on the ribs 7 and 9 are disposed in uniplanar relation to each other, with the adjacent fins 5a on the rib 8 disposed midway therebetween.
  • heat exchangers 1 and 1a that is merely by way of illustration and not by way of limitation, and that heat exchangers embodying a greater number of finned ribs spaced transversely thereacross may be afforded and formed without departing from the purview of the present invention. Also, if desired, fins in rows other than alternate rows, such as, for example, alternate adjacent pairs of rows, and the like, may be offset from each other without departing from the purview of the present invention.
  • the present invention affords a novel heat exchanger of the finned type, wherein the fins are in the form of spines.
  • the present invention affords a novel method of forming such a heat exchanger.
  • the present invention affords a novel finned heat exchanger which is practical and efficient in operation, and which may be readily and economically produced commercially.
  • a heat transfer element comprising a. a tubular member having an elongated wall
  • said fins in each of said rows 1. having base portions extending transversely to their respective row, and 2. having free end portions projecting outwardly of said base portions,
  • said free end portions of said fins in certain of said rows projecting toward one end of said wall a greater distance than do said free end portions of immediately transversely adjacent fins in the other of said rows.
  • said laterally spaced rows are alternately said cer tain rows and said other rows.
  • said rows of fins are disposed on at least one of said faces.
  • a. said one face has a plurality of outwardly projecting, substantially parallel spaced ribs thereon, and
  • said rows of fins are disposed on respective ones of said ribs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US00175675A 1971-08-27 1971-08-27 Heat exchangers Expired - Lifetime US3746086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17567571A 1971-08-27 1971-08-27

Publications (1)

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US3746086A true US3746086A (en) 1973-07-17

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US00175675A Expired - Lifetime US3746086A (en) 1971-08-27 1971-08-27 Heat exchangers

Country Status (5)

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US (1) US3746086A (enrdf_load_stackoverflow)
JP (1) JPS5310297B2 (enrdf_load_stackoverflow)
CA (1) CA952097A (enrdf_load_stackoverflow)
DE (1) DE2241407C3 (enrdf_load_stackoverflow)
GB (1) GB1351105A (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850236A (en) * 1973-03-26 1974-11-26 Peerless Of America Heat exchangers
US3886639A (en) * 1975-02-01 1975-06-03 Peerless Of America Method of making a finned heat exchanger
US4005991A (en) * 1971-12-29 1977-02-01 Toyo Kogyo Co., Ltd. Metal made of steel plate and aluminum material
US4023613A (en) * 1971-12-29 1977-05-17 Toyo Kogyo Co., Ltd. Method of making a composite metal casting
DE3243974A1 (de) * 1982-11-27 1984-05-30 Peerless Of America Inc., Chicago, Ill. Verfahren zur herstellung von mehrkanalwaermeaustauschern
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
US4794985A (en) * 1987-04-29 1989-01-03 Peerless Of America Incorporated Finned heat exchanger tubing with varying wall thickness
US5856630A (en) * 1994-06-01 1999-01-05 The United States Of America As Represented By The Secretary Of The Navy High velocity electromagnetic mass launcher having an ablation resistant insulator
US5967228A (en) * 1997-06-05 1999-10-19 American Standard Inc. Heat exchanger having microchannel tubing and spine fin heat transfer surface
EP1091403A3 (en) * 1999-10-04 2003-01-15 Showa Denko Kabushiki Kaisha Heat sink
US6532661B2 (en) * 1996-09-30 2003-03-18 Kabushiki Kaisha Tsukada Nezi Seisakusho Sheet feed shaft, apparatus for manufacturing same and method for manufacturing same
US20070261242A1 (en) * 2006-05-15 2007-11-15 Foxconn Technology Co., Ltd. Method for manufacturing phase change type heat sink
US20080219086A1 (en) * 2007-03-09 2008-09-11 Peter Mathys Apparatus for the heat-exchanging and mixing treatment of fluid media
US20080216991A1 (en) * 2007-03-02 2008-09-11 Hironori Oikawa Cooling device for information equipment
RU2374588C1 (ru) * 2008-06-10 2009-11-27 Государственное образовательное учреждение высшего профессионального образования "Уфимская государственная академия экономики и сервиса" (ГОУВПО УГАЭС) Способ изготовления теплообменной поверхности
JP2015525868A (ja) * 2012-07-30 2015-09-07 ゼネラル・エレクトリック・カンパニイ インタークーラ用の熱交換器、および水抽出装置
US11389911B2 (en) * 2019-11-13 2022-07-19 Nakamura Mfg. Co., Ltd. Method of manufacturing heat sink and heat sink
RU229205U1 (ru) * 2023-11-15 2024-09-26 Общество С Ограниченной Ответственностью "Ижевский Завод Радиаторов" Профиль алюминиевый ячеистый

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5399470A (en) * 1977-02-10 1978-08-30 Mitsubishi Electric Corp Device for cooling conductor
JPS5473348A (en) * 1977-11-24 1979-06-12 Hitachi Ltd Heat exchanger
EP0947794A1 (de) * 1998-03-30 1999-10-06 Balcke-Dürr GmbH Verfahren zur Herstellung von Rippenrohren
JP2010212730A (ja) * 2010-05-31 2010-09-24 Nakamura Mfg Co Ltd 放熱器の製造用工具
JP6119263B2 (ja) * 2013-01-22 2017-04-26 株式会社デンソー 熱交換器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202212A (en) * 1963-07-29 1965-08-24 Peerless Of America Heat transfer element
US3229722A (en) * 1964-02-19 1966-01-18 Richard W Kritzer Heat exchange element with internal flow diverters
US3360040A (en) * 1965-07-30 1967-12-26 Peerless Of America Heat exchanger elements
US3537516A (en) * 1968-07-02 1970-11-03 Olin Corp Compact heat exchange component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540374A (enrdf_load_stackoverflow) *
US2247243A (en) * 1938-07-11 1941-06-24 Thermek Corp Heat exchange element and method of making the same
US2327757A (en) * 1940-02-09 1943-08-24 Thermek Corp Method of raising spines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202212A (en) * 1963-07-29 1965-08-24 Peerless Of America Heat transfer element
US3229722A (en) * 1964-02-19 1966-01-18 Richard W Kritzer Heat exchange element with internal flow diverters
US3360040A (en) * 1965-07-30 1967-12-26 Peerless Of America Heat exchanger elements
US3537516A (en) * 1968-07-02 1970-11-03 Olin Corp Compact heat exchange component

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005991A (en) * 1971-12-29 1977-02-01 Toyo Kogyo Co., Ltd. Metal made of steel plate and aluminum material
US4023613A (en) * 1971-12-29 1977-05-17 Toyo Kogyo Co., Ltd. Method of making a composite metal casting
US3850236A (en) * 1973-03-26 1974-11-26 Peerless Of America Heat exchangers
US3886639A (en) * 1975-02-01 1975-06-03 Peerless Of America Method of making a finned heat exchanger
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
DE3243974A1 (de) * 1982-11-27 1984-05-30 Peerless Of America Inc., Chicago, Ill. Verfahren zur herstellung von mehrkanalwaermeaustauschern
US4794985A (en) * 1987-04-29 1989-01-03 Peerless Of America Incorporated Finned heat exchanger tubing with varying wall thickness
US5856630A (en) * 1994-06-01 1999-01-05 The United States Of America As Represented By The Secretary Of The Navy High velocity electromagnetic mass launcher having an ablation resistant insulator
US6540218B2 (en) 1996-09-30 2003-04-01 Kabushiki Kaisha Tsukada Nezi Seisakusho Sheet feed shaft, apparatus for manufacturing same and method for manufacturing same
US6532661B2 (en) * 1996-09-30 2003-03-18 Kabushiki Kaisha Tsukada Nezi Seisakusho Sheet feed shaft, apparatus for manufacturing same and method for manufacturing same
US5967228A (en) * 1997-06-05 1999-10-19 American Standard Inc. Heat exchanger having microchannel tubing and spine fin heat transfer surface
EP1091403A3 (en) * 1999-10-04 2003-01-15 Showa Denko Kabushiki Kaisha Heat sink
KR100719859B1 (ko) * 1999-10-04 2007-05-21 쇼와 덴코 가부시키가이샤 히트 싱크
US20070261242A1 (en) * 2006-05-15 2007-11-15 Foxconn Technology Co., Ltd. Method for manufacturing phase change type heat sink
US20080216991A1 (en) * 2007-03-02 2008-09-11 Hironori Oikawa Cooling device for information equipment
US20080219086A1 (en) * 2007-03-09 2008-09-11 Peter Mathys Apparatus for the heat-exchanging and mixing treatment of fluid media
US8794820B2 (en) * 2007-03-09 2014-08-05 Sulzer Chemtech Ag Apparatus for the heat-exchanging and mixing treatment of fluid media
RU2374588C1 (ru) * 2008-06-10 2009-11-27 Государственное образовательное учреждение высшего профессионального образования "Уфимская государственная академия экономики и сервиса" (ГОУВПО УГАЭС) Способ изготовления теплообменной поверхности
JP2015525868A (ja) * 2012-07-30 2015-09-07 ゼネラル・エレクトリック・カンパニイ インタークーラ用の熱交換器、および水抽出装置
US11389911B2 (en) * 2019-11-13 2022-07-19 Nakamura Mfg. Co., Ltd. Method of manufacturing heat sink and heat sink
RU229205U1 (ru) * 2023-11-15 2024-09-26 Общество С Ограниченной Ответственностью "Ижевский Завод Радиаторов" Профиль алюминиевый ячеистый

Also Published As

Publication number Publication date
DE2241407C3 (de) 1984-07-19
GB1351105A (en) 1974-04-24
DE2241407B2 (de) 1978-10-12
JPS5310297B2 (enrdf_load_stackoverflow) 1978-04-12
CA952097A (en) 1974-07-30
DE2241407A1 (de) 1973-03-08
JPS4857242A (enrdf_load_stackoverflow) 1973-08-11

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