EP0125642A2 - Mit einem verbesserten Verflüssiger versehener Kühlschrank - Google Patents

Mit einem verbesserten Verflüssiger versehener Kühlschrank Download PDF

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Publication number
EP0125642A2
EP0125642A2 EP84105304A EP84105304A EP0125642A2 EP 0125642 A2 EP0125642 A2 EP 0125642A2 EP 84105304 A EP84105304 A EP 84105304A EP 84105304 A EP84105304 A EP 84105304A EP 0125642 A2 EP0125642 A2 EP 0125642A2
Authority
EP
European Patent Office
Prior art keywords
condenser
refrigerator
tube
sectional shape
bent
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.)
Withdrawn
Application number
EP84105304A
Other languages
English (en)
French (fr)
Other versions
EP0125642A3 (de
Inventor
Agostino Bravin
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi SpA
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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Publication of EP0125642A2 publication Critical patent/EP0125642A2/de
Publication of EP0125642A3 publication Critical patent/EP0125642A3/de
Withdrawn legal-status Critical Current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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components

Definitions

  • the present invention relates to a refrigerator, particularly for domestic use, comprising a compressor, an evaporator and an improved condenser for liquifying a refrigerant provenient from the compressor in a gaseous state and feeding it to the evaporator in the liquid state.
  • Known condensers are generally secured to the rear wall of the refrigerator and are formed of tubular conduits bent to a meander configuration having elements for augmenting its heat-exchange surface brazed thereto, such as louvred metal sheets, wires or ribs of various types.
  • the possibilities of dimensional adaptation to various refrigerator production models are limited not only by the constant pitch of the meander configuration, but also by the standard width of the louvred sheets which have to be variably dimensioned between one model and the other,, whereby their manufacture is undesirably diversified.
  • the louvred sheets are generally applied to the condenser tube in the form of vertically extending strips welded or brazed to each other along their abutting edges. This manner of securing the louvred sheets results in variations of the contact areas between the louvred sheets and the condenser tube and thus in a non-uniform distribution of the heat-exchange coefficient.
  • tubes provided with integrally formed internal and/or external ribs or fins projecting in darial directions and extending parallel to the axis of the tube or along helical lines.
  • Another object of the invention is the provision of a condenser of the type defined above which is capable of dissipating the varying amounts of heat generated by refrigerating appliances of different capacity without the need for louvres, wires or fins.
  • a still further object is to eliminate the need for any welding operations in the manufacture of a condenser of the type defined above so as to simplify its manufacture, avoid the employ of specialized personnel and permit the application of various anti-corrosion treatments more efficient than the conventional varnish coating.
  • a refrigerator particularly for domestic use, comprising a compressor, an evaporator, and a condenser adapted to transmit an elevated temperature between a fluid circulating internally thereof and an external fluid of natural circulation, and to be secured to the outer rear wall of the refrigerator, by providing that said condenser is formed substantially integrally of a tube having smooth internal and external surfaces and bent to a meander configuration having a circular cross-sectional shape at its bent portions and an elliptic cross-sectional shape at its rectilinear portions.
  • FIG. 1 Shown in fig. 1 is an exemplary embodiment of a domestic refrigerator 5 according to the invention provided with a condenser 4 secured to its outer rear wall.
  • Condenser 4 is connected between a compressor.6 and an evaporator 7 of a conventional refrigerating circuit and is formed substantially in one piece of a tube 8 (fig. 2) having smooth internal and external surfaces and being bent to a meander configuration extending in a substantially vertical plane.
  • Tube 8 is of circular cross-sectional shape 9 (fig. 3) at its bent portions 10, while its rectilinear portions 11 are of substantially elliptic cross-sectional shape 12.
  • meander configuration 8 may be formed of a simple metal tube 8 the diameter of which is considerably greater than that of a tube employed for forming a conventional condenser.
  • Tube 8 is made to pass between two oppositely disposed cylindric rolls the spacing of which is reduced at predetermined intervals so as to deform the circular cross-sectional shape 9 of tube 8 to an elliptic cross-sectional shape 12 along predetermined longitudinal portions, the cross-sectional area enclosed by these sections being substantially equal to that of the tubes of conventional condensers provided -with louvres or wires.
  • the portions of tube 8 having circular cross-sectional shape 9 are relatively short and located at predetermined intervals corresponding to bent portions 10 of tube 8, while rectilinear portions 11 extending between bent portions 10 are of elliptic cross-sectional shape 12 and constitute the major part of the length of tube 8.
  • the condenser according to the invention is capable of dissipating the same amount of heat, although its outer heat exchange surface is smaller.
  • the condenser according to the invention may be secured to the frame of refrigerator 5 by means of two lateral supports 13, 14 (figs. 1 and 2) of substantially U-shaped cross-sectional configuration (fig. 3), adapted to be compressed into clamping engagement with the circular cross-sectional shape 9 of bent portions 10 of tube 8 so as to be secured thereto without welding or brazing.
  • Supports 13 and 14 each comprise at least two metal lugs 15, 16 and 17, 18, respectively, formed integrally therewith or welded thereto, these lugs being formed with suitable perforations for the passage of threaded fasteners or rivets or the like (not shown) for securing the assembly to the frame of refrigerator 5.
  • lugs 15 to 18 may be formed of a synthetic resin or the like and attached to supports 13, 14 by snap-engagement therewith.
  • the condenser according to the invention lends itself to being manufactured by a manufacturing process which may be carried out in a simple manner with a minimum employ of manual labour and equipment and which is capable of being completely automatized.
  • the tube may be subjected to anti-corrosion treatments, for example zinc or chromium plating, which are considerably more efficient than a simple varnish coating.
  • condenser 4 without any procecting components permits condenser 4 according to the invention to be mounted in a perpendicular position.
  • this configuration of condenser.4 results in a considerably dimensional flexibility, reduced space requirements and optimum stability characteristics.
  • the ends of tube 8 may be reduced in diameter in a per se known manner, permitting them to be connected, as by brazing, to other conduits of smaller diameter.
  • the ends of tube 8 may be provided with connector elements such as internal and/or external sleeves, bushings or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP84105304A 1983-05-16 1984-05-10 Mit einem verbesserten Verflüssiger versehener Kühlschrank Withdrawn EP0125642A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3402483U IT8334024V0 (it) 1983-05-16 1983-05-16 Frigorifero provvisto di condensatore perfezionato.
IT3402483U 1983-05-16

Publications (2)

Publication Number Publication Date
EP0125642A2 true EP0125642A2 (de) 1984-11-21
EP0125642A3 EP0125642A3 (de) 1985-05-15

Family

ID=11238762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105304A Withdrawn EP0125642A3 (de) 1983-05-16 1984-05-10 Mit einem verbesserten Verflüssiger versehener Kühlschrank

Country Status (3)

Country Link
EP (1) EP0125642A3 (de)
ES (1) ES279235Y (de)
IT (1) IT8334024V0 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321753A2 (de) * 1987-12-19 1989-06-28 Licentia Patent-Verwaltungs-GmbH Kühl- oder Gefrierschrank
EP0633435A1 (de) * 1993-07-06 1995-01-11 MAGNETI MARELLI CLIMATIZZAZIONE S.r.l. Verflüssiger für Klimaanlage, insbesondere in Fahrzeugen
WO2002103258A2 (en) * 2001-06-15 2002-12-27 Bundy A/S Refrigeration unit, heat transfer element and method of manufacturing a heat transfer element
DE102007023673A1 (de) 2007-05-22 2008-11-27 Institut für Luft- und Kältetechnik gGmbH Rückwandverflüssiger für Haushaltskältegeräte
DE102007023696A1 (de) 2007-05-22 2008-11-27 Institut für Luft- und Kältetechnik gGmbH Verflüssiger für Haushaltskältegeräte
EP2136168A1 (de) 2008-06-20 2009-12-23 Electrolux Home Products Corporation N.V. Kondensator eines Kühlgeräts und Kühlgerät damit
AU2008203059B2 (en) * 2007-07-11 2012-04-26 Rheem Australia Pty Limited A Heat Transfer Coil and Method of Manufacturing a Heat Coil
DE102011087783A1 (de) 2011-12-06 2013-06-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US789591A (en) * 1904-11-28 1905-05-09 Freeman Davis Dental appliance.
US2446876A (en) * 1943-05-29 1948-08-10 Admiral Corp Refrigerator cabinet and means for mounting a compressor and condenser therein
DE821643C (de) * 1949-10-24 1951-11-19 Manfred Behr Dipl Ing Kondensator fuer Kaeltemaschinen
DE834569C (de) * 1949-10-24 1952-03-20 Manfred Behr Dipl Ing Kondensator fuer Kaeltemaschinen
US2619328A (en) * 1950-01-07 1952-11-25 Rudy Mfg Company Plate type condenser
FR1193282A (fr) * 1958-03-14 1959-11-02 Armoire frigorifique
US3174301A (en) * 1963-10-07 1965-03-23 Gen Electric Heat exchanger structure
FR1473989A (fr) * 1966-01-12 1967-03-24 Stein Et Roubaix Sa Dispositif de supportage de panneaux de tubes en serpentin
US3701381A (en) * 1971-07-21 1972-10-31 Curtiss Wright Corp Heat exchanger supporting means
FR2216530A1 (de) * 1973-02-01 1974-08-30 Hoechst Ag
FR2409478A1 (fr) * 1977-11-16 1979-06-15 Stal Laval Apparat Ab Paroi pour soutenir des serpentins notamment pour echangeur de chaleur

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US789591A (en) * 1904-11-28 1905-05-09 Freeman Davis Dental appliance.
US2446876A (en) * 1943-05-29 1948-08-10 Admiral Corp Refrigerator cabinet and means for mounting a compressor and condenser therein
DE821643C (de) * 1949-10-24 1951-11-19 Manfred Behr Dipl Ing Kondensator fuer Kaeltemaschinen
DE834569C (de) * 1949-10-24 1952-03-20 Manfred Behr Dipl Ing Kondensator fuer Kaeltemaschinen
US2619328A (en) * 1950-01-07 1952-11-25 Rudy Mfg Company Plate type condenser
FR1193282A (fr) * 1958-03-14 1959-11-02 Armoire frigorifique
US3174301A (en) * 1963-10-07 1965-03-23 Gen Electric Heat exchanger structure
FR1473989A (fr) * 1966-01-12 1967-03-24 Stein Et Roubaix Sa Dispositif de supportage de panneaux de tubes en serpentin
US3701381A (en) * 1971-07-21 1972-10-31 Curtiss Wright Corp Heat exchanger supporting means
FR2216530A1 (de) * 1973-02-01 1974-08-30 Hoechst Ag
FR2409478A1 (fr) * 1977-11-16 1979-06-15 Stal Laval Apparat Ab Paroi pour soutenir des serpentins notamment pour echangeur de chaleur

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321753A2 (de) * 1987-12-19 1989-06-28 Licentia Patent-Verwaltungs-GmbH Kühl- oder Gefrierschrank
EP0321753A3 (de) * 1987-12-19 1990-07-11 Licentia Patent-Verwaltungs-GmbH Kühl- oder Gefrierschrank
EP0633435A1 (de) * 1993-07-06 1995-01-11 MAGNETI MARELLI CLIMATIZZAZIONE S.r.l. Verflüssiger für Klimaanlage, insbesondere in Fahrzeugen
WO2002103258A2 (en) * 2001-06-15 2002-12-27 Bundy A/S Refrigeration unit, heat transfer element and method of manufacturing a heat transfer element
WO2002103258A3 (en) * 2001-06-15 2003-04-24 Bundy As Refrigeration unit, heat transfer element and method of manufacturing a heat transfer element
DE102007023696A1 (de) 2007-05-22 2008-11-27 Institut für Luft- und Kältetechnik gGmbH Verflüssiger für Haushaltskältegeräte
DE102007023673A1 (de) 2007-05-22 2008-11-27 Institut für Luft- und Kältetechnik gGmbH Rückwandverflüssiger für Haushaltskältegeräte
DE102007023696B4 (de) * 2007-05-22 2011-06-22 Institut für Luft- und Kältetechnik gGmbH, 01309 Verflüssiger für Haushaltskältegeräte
DE102007023673B4 (de) * 2007-05-22 2011-06-30 Institut für Luft- und Kältetechnik gGmbH, 01309 Rückwandverflüssiger für Haushaltskältegeräte
AU2008203059B2 (en) * 2007-07-11 2012-04-26 Rheem Australia Pty Limited A Heat Transfer Coil and Method of Manufacturing a Heat Coil
EP2136168A1 (de) 2008-06-20 2009-12-23 Electrolux Home Products Corporation N.V. Kondensator eines Kühlgeräts und Kühlgerät damit
DE102011087783A1 (de) 2011-12-06 2013-06-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät
EP2610565A2 (de) 2011-12-06 2013-07-03 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät

Also Published As

Publication number Publication date
EP0125642A3 (de) 1985-05-15
ES279235U (es) 1984-12-01
ES279235Y (es) 1985-06-01
IT8334024V0 (it) 1983-05-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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Effective date: 19860116

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRAVIN, AGOSTINO