US3224503A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
US3224503A
US3224503A US157497A US15749761A US3224503A US 3224503 A US3224503 A US 3224503A US 157497 A US157497 A US 157497A US 15749761 A US15749761 A US 15749761A US 3224503 A US3224503 A US 3224503A
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US
United States
Prior art keywords
extending
strip sections
plate
heat exchanger
strip
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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
US157497A
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English (en)
Inventor
Konanz Albert
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Individual
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Individual
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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
    • F28F1/14—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 longitudinally
    • F28F1/22—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 longitudinally the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • 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

  • Heat exchangers are known, particularly for refrigerators, which comprise sheet members having fluid conducting coils embedded therein or connected thereto.
  • the coils or pipes carry the refrigerant and are provided with the plate portions for carrying away heat from the refrigerant.
  • Plates of this nature usually include separately secured projecting fins for aiding in the heat transfer or an arrangement in which the plates include outwardly extending formations on one side for aiding in the conducting away of the heat.
  • an improved heat exchanger construction which includes a substantially flat sheet member which is recessed to provide means for connecting a tube or conduit for the medium being affected and in which the sheet is provided with a multiplicity of strip portions which are bent away from the plane of the sheet in order to afford an increase in heat transfer in the overall grid structure.
  • the bent sheet portions are preferably bent alternately outwardly to opposite sides of the sheet in order to insure adequate heat transfer on all of the surfaces of the sheet connecting the tubes or conduits.
  • the plate is advantageously slit to form a multiplicity of strip portions between slits which are alternately bent away from the plane of the sheet, preferably while the sheet is being subjected to a stretching operation in order to enlarge the surfaces of the corrugations thus formed.
  • the area defined between slits on the sheet material is advantageously subjected to a pressing force to effect the formation of desirable heat transfer configurations, such as a triangular-shaped corrugation on the plate member.
  • a further object of this invention is to provide a heat exchanger including a heat conductive sheet joining a series of coils of a primary fluid conduit which sheet includes a plurality of pairs of slits in which the material between the slits of the sheet is bent outwardly into a corrugated configuration.
  • a further object of the invention is to provide a heat exchanger including a grid comprised of a heat conductive sheet recessed to accommodate the successive coil windings of a primary fluid conduit and having a multiplicity of slits cut therethrough to define areas between adjacent slits which are bent outwardly to form corrugations, and preferably including adjacent areas which are bent outwardly from the plane of the sheet in alternately opposite directions.
  • a further object of the invention is to provide a heat exchanger which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 1 is a fragmentary elevation of a heat exchanger constructed in accordance with the invention
  • FIG. 2 is a section taken on the line 2--2 of FIG. 1;
  • FIG. 3 is a section taken on the line 3-3 of FIG. 1;
  • FIGS. 3a and 4 are views, similar to FIG. 3, of alternative embodiments of the invention.
  • FIG. 5 is a fragmentary elevation of still another embodiment of the invention.
  • the invention embodied therein includes a heat exchanger grid structure generally designated 10 in FIG. 1.
  • the grid structure 10 comprises a continuous length of a primary fluid conduit or coil 1 for the inner fluid medium, and a heat conducting plate generally designated 3 which is provided with a series of grooves 2 for receiving the coil 1 in tight conductive contact therewith.
  • the conductive plate 3 between every adjacent pipe coil section is provided with adjacent embossed areas or corrugations 5 and 6.
  • the plate 3 is slit at laterally spaced locations across its width and the areas between sets of parallel strips are alternately bent outwardly from the plane of the sheet 3.
  • the upper portions 5a are bent outwardly in one direction while the subjacent portions 6b are bent outwardly in an opposite direction.
  • the portion 51 is bent in a direction opposite the direction of the portion 5a and the portion 6a is opposite to the direction of bend of the portion 6b.
  • portions 5a and 6a are indicated bent in one direction and portions 611 and 5b are bent in an opposite direction.
  • the heat exchanger of the invention may also be produced by rolling together two plates while interpositioning separate layers therebetween which cause the formation of a channel. Due to the position of the separating layers, predetermined channels are widened while the separating layer expands.
  • the advantages of a good heat conductive structure produced by the construction set forth may be still further enhanced by straightening or stretching the individual corrugations formed during the corrugating procedure to thereby obtain a surface enlargement.
  • the corrugations 5a, 5b and 6a, 612 may be carried out while simultaneously straightening to cause a surface enlargement of the overall heat conductive area while at the same time reducing the thickness of the sheet.
  • the corrugations have a substantially rectangular cross section
  • the corrugations are formed by means which upset the metallic material in the sheet area to form thickened triangular portions 8 at the outer edge, for example, as indicated in FIG. 3a. It is also advantageous in some instances to bend the areas between adjacent slits to define offset right triangular projections or corrugations as indicated at 12 in FIG. 4.
  • a heat exchanger structure generally designated 14 which includes a series of heat exchanger plates 16 which are joined to a conduit for the inner medium 18 similar to the manner indicated in FIGS. 1 and 2.
  • Each of the plates 16 is provided with corrugations 5a and 5b and 6a and 6b in the same manner indicated in FIGS. 1 to 4 and may advantageously include the oblique configuration such as indicated in 12 of FIG. 4.
  • a heat exchanger comprising, in combination, a metal plate having at least one substantially rectilinear, substantially semicircular cross-section groove extending thereacross in a first direction; and a conduit having at least one substantially rectilinear portion extending conformingly within said groove; said plate being formed With aligned series of parallel longitudinally spaced slits extending substantially perpendicular to the axis of said groove to define strip sections in adjacent relation in said first direction, said strip sections being aligned in rows extending in said first direction with the rows extending substantially perpendicular to the lengths of said strip sections; adjacent strip sections in each series and in each row being offset from respective opposite surfaces of said plate, whereby each series of strip sections has the nature of an undulating strip extending substantially normal to the axis of said groove; adjacent rows of strip sections being separated by relatively narrow planar strip portions of said plate extending in said first direction.
  • a heat exchanger as claimed in claim 1, in which said strip sections are longitudinally arcuate.
  • a heat exchanger as claimed in claim 2, in which said strip sections have a triangular cross section with the apices of the triangles facing away from the surfaces of said plate.
  • a heat exchanger as claimed in claim 3, in which the cross-section of said strip sections is substantially an isoceles triangle.
  • a heat exchanger as claimed in claim 4, in which said strip sections are further offset, in a direction parallel to said first direction, whereby the cross sections of said strip sections are substantially right triangles; strip sections offset from opposite surfaces of said plate being ofiset in respective opposite directions.
  • a heat exchanger as claimed in claim 1, wherein said conduit includes a plurality of substantially rectilinear portions, each extending conformingly within a respective plate groove; said conduit further having sections interconnecting said substantially rectilinear portions to form a continuous flow path extending in opposite directions in laterally adjacent rectilinear'portions.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US157497A 1960-12-10 1961-12-06 Heat exchanger Expired - Lifetime US3224503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA36254A DE1297631B (de) 1960-12-10 1960-12-10 Waermetauscher, bestehend aus einer Rohrschlange und einem in deren Ebene liegenden, geschlitzten Waermetauschblech

Publications (1)

Publication Number Publication Date
US3224503A true US3224503A (en) 1965-12-21

Family

ID=6929534

Family Applications (1)

Application Number Title Priority Date Filing Date
US157497A Expired - Lifetime US3224503A (en) 1960-12-10 1961-12-06 Heat exchanger

Country Status (3)

Country Link
US (1) US3224503A (de)
DE (1) DE1297631B (de)
GB (1) GB950099A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380518A (en) * 1965-02-26 1968-04-30 Canteloube Andre Finned heat exchanger
US3535761A (en) * 1967-08-30 1970-10-27 Gulf & Western Ind Prod Co Method of fabricating radiators
US4071934A (en) * 1975-10-17 1978-02-07 Brazeway, Inc. CFT Box fin
US4076076A (en) * 1976-07-12 1978-02-28 Halm Instrument Co., Inc. Mechanical heat exchange joint
US4079781A (en) * 1975-04-18 1978-03-21 Hjalmar Aass A/S Radiant heater
US4141411A (en) * 1973-06-14 1979-02-27 Kalnin Igor M Tubular heat exchanger
US4279066A (en) * 1979-09-04 1981-07-21 S. W. Hart & Co. Pty. Ltd. Method of attaching a solar collector plate to a tube water way
US4722388A (en) * 1986-09-08 1988-02-02 Drury Chauncey R Heat exchanger
US5353868A (en) * 1993-04-19 1994-10-11 Abbott Roy W Integral tube and strip fin heat exchanger circuit
US5398752A (en) * 1993-08-19 1995-03-21 Abbott; Roy W. Strip fin and tube heat exchanger
WO1996007064A1 (en) * 1994-09-01 1996-03-07 Norfrost Limited Improvements in or relating to refrigeration apparatus
US6230511B1 (en) * 1997-08-26 2001-05-15 Lg Electronics, Inc. Evaporator in refrigerator
US20070017663A1 (en) * 2003-09-19 2007-01-25 Ti Group Automotive Systems Limited Heat exchanger cooling fin

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US658387A (en) * 1900-07-14 1900-09-25 Ferris A Mitchell Corner strip or bead.
US709875A (en) * 1902-05-05 1902-09-30 Rudolf Commichau Heating or cooling pipe.
US1161493A (en) * 1913-07-30 1915-11-23 Walter W Macfarren Cooling means for gas-engine cylinders.
US1709745A (en) * 1927-02-03 1929-04-16 Johannes Kleinewefers Economizer tube
US1721870A (en) * 1926-02-24 1929-07-23 Franklin Dev Corp Cylinder construction for air-cooled engines
US1951958A (en) * 1932-11-25 1934-03-20 Young Radiator Co Heat transferring device
DE667327C (de) * 1936-01-18 1938-11-09 Hans Windhoff App Und Maschine Insbesondere fuer Flugzeugmotoren bestimmter Kuehler
US2322284A (en) * 1939-12-23 1943-06-22 Griscom Russell Co Heat exchanger
US2500501A (en) * 1946-09-12 1950-03-14 Kellogg M W Co Method of making heat exchangers
US2646259A (en) * 1950-02-02 1953-07-21 Houdaille Hershey Corp Condenser
CH321270A (de) * 1954-01-29 1957-04-30 Lehmann Ernst Wärmeaustauscherelement
US3083662A (en) * 1957-07-19 1963-04-02 Borg Warner Heat exchanger and method of making same
US3135320A (en) * 1959-03-09 1964-06-02 Licencia Talalmanyokat Heat exchangers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074063B (de) * 1960-01-28 GEA-I uftkuhler Gesellschaft m b H Bochum Plattenwarmeaustauscher mit einteiligen die Platten distanzierenden Flachengittern die quer zur Stromungsnchtung nach entgegengesetzten Seiten herausgebogene Flachenabschmite auf weisen
US2667337A (en) * 1947-08-06 1954-01-26 Chapman Everett Finned element for thermal or heat transfer purposes
US2656160A (en) * 1951-06-04 1953-10-20 Air Preheater Tab strip fin for heat exchanger cores
DE1700509U (de) * 1954-05-26 1955-06-16 Otto Fr Hartmann & Co Waermeaustauscher, vorzugsweise konvektor.
FR1191954A (fr) * 1957-12-20 1959-10-22 Aluminium U Metallwarenfabrik échangeur de chaleur
DE1802234U (de) * 1959-09-07 1959-12-17 Siegas Metallwarenfab Waermeaustauscher, insbesondere fuer kuehlschraenke.

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US658387A (en) * 1900-07-14 1900-09-25 Ferris A Mitchell Corner strip or bead.
US709875A (en) * 1902-05-05 1902-09-30 Rudolf Commichau Heating or cooling pipe.
US1161493A (en) * 1913-07-30 1915-11-23 Walter W Macfarren Cooling means for gas-engine cylinders.
US1721870A (en) * 1926-02-24 1929-07-23 Franklin Dev Corp Cylinder construction for air-cooled engines
US1709745A (en) * 1927-02-03 1929-04-16 Johannes Kleinewefers Economizer tube
US1951958A (en) * 1932-11-25 1934-03-20 Young Radiator Co Heat transferring device
DE667327C (de) * 1936-01-18 1938-11-09 Hans Windhoff App Und Maschine Insbesondere fuer Flugzeugmotoren bestimmter Kuehler
US2322284A (en) * 1939-12-23 1943-06-22 Griscom Russell Co Heat exchanger
US2500501A (en) * 1946-09-12 1950-03-14 Kellogg M W Co Method of making heat exchangers
US2646259A (en) * 1950-02-02 1953-07-21 Houdaille Hershey Corp Condenser
CH321270A (de) * 1954-01-29 1957-04-30 Lehmann Ernst Wärmeaustauscherelement
US3083662A (en) * 1957-07-19 1963-04-02 Borg Warner Heat exchanger and method of making same
US3135320A (en) * 1959-03-09 1964-06-02 Licencia Talalmanyokat Heat exchangers

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380518A (en) * 1965-02-26 1968-04-30 Canteloube Andre Finned heat exchanger
US3535761A (en) * 1967-08-30 1970-10-27 Gulf & Western Ind Prod Co Method of fabricating radiators
US4141411A (en) * 1973-06-14 1979-02-27 Kalnin Igor M Tubular heat exchanger
US4079781A (en) * 1975-04-18 1978-03-21 Hjalmar Aass A/S Radiant heater
US4071934A (en) * 1975-10-17 1978-02-07 Brazeway, Inc. CFT Box fin
US4076076A (en) * 1976-07-12 1978-02-28 Halm Instrument Co., Inc. Mechanical heat exchange joint
US4279066A (en) * 1979-09-04 1981-07-21 S. W. Hart & Co. Pty. Ltd. Method of attaching a solar collector plate to a tube water way
US4722388A (en) * 1986-09-08 1988-02-02 Drury Chauncey R Heat exchanger
US5353868A (en) * 1993-04-19 1994-10-11 Abbott Roy W Integral tube and strip fin heat exchanger circuit
US5398752A (en) * 1993-08-19 1995-03-21 Abbott; Roy W. Strip fin and tube heat exchanger
WO1996007064A1 (en) * 1994-09-01 1996-03-07 Norfrost Limited Improvements in or relating to refrigeration apparatus
US5797451A (en) * 1994-09-01 1998-08-25 Norfrost Limited Refrigeration apparatus
US6230511B1 (en) * 1997-08-26 2001-05-15 Lg Electronics, Inc. Evaporator in refrigerator
US20070017663A1 (en) * 2003-09-19 2007-01-25 Ti Group Automotive Systems Limited Heat exchanger cooling fin
US7360585B2 (en) * 2003-09-19 2008-04-22 Bundy Refrigeration International Holding B.V. Heat exchanger cooling fin

Also Published As

Publication number Publication date
DE1297631B (de) 1969-06-19
GB950099A (en) 1964-02-19

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