GB1163331A - Improvements in or relating to Heat Exchangers - Google Patents

Improvements in or relating to Heat Exchangers

Info

Publication number
GB1163331A
GB1163331A GB4381466A GB4381466A GB1163331A GB 1163331 A GB1163331 A GB 1163331A GB 4381466 A GB4381466 A GB 4381466A GB 4381466 A GB4381466 A GB 4381466A GB 1163331 A GB1163331 A GB 1163331A
Authority
GB
United Kingdom
Prior art keywords
strip
rolls
welding
strips
sheath
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
Application number
GB4381466A
Inventor
David Dalin
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.)
Individual
Original Assignee
Individual
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
Priority claimed from US496235A external-priority patent/US3397440A/en
Priority claimed from SE15115/65A external-priority patent/SE330363B/xx
Application filed by Individual filed Critical Individual
Publication of GB1163331A publication Critical patent/GB1163331A/en
Expired legal-status Critical Current

Links

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
    • F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
    • 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
    • F28F1/34—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 obliquely
    • F28F1/36—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 obliquely the means being helically wound fins or wire spirals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1,163,331. Making heat exchangers; shearing; welding by pressure. D. DALIN. 30 Sept., 1966 [30 Sept., 1965], No. 43814/66. Headings B3A, B3R and B3W. [Also in Division F4] A method of making a heat exchanger comprises forming an elongated bimetallic strip having a core of good heat conductivity metal encased in a sheath of corrosion resistant material, forming the strip into a row of spaced apart, but connected fingers, welding the strip to a heat conducting wall of the exchanger with the strip fingers projecting from the wall as extended surface, and pressing the strip against the wall with sufficient force to compact the core metal. The strip is made from a copper or aluminium core with a stainless steel sheath and in one embodiment two adjacent strips are wound helically around a stainless steel tube 20. In an alternative embodiment, the heat conducting wall is flat instead of tubular. The inner bends 24 are connected to terminals 27, 27<SP>1</SP> of a source of welding current by electrodes 28, 28<SP>1</SP> so that the current flows through the intervening section of tube wall. The strips are pressed by tools which act after the welding operation, or the electrodes may be forced against the bends 24 after the flow of welding current is stopped. The strips may be flat or round, Figs. 4, 5 (not shown) and the extreme ends are sealed by the sheath material. Alternatively the strips may be made by passing a heated copper or aluminium ribbon 42 and heated stainless steel ribbons 41, 43 between rolls 46, 47, which initially compact the ribbons and turn in the edge portions of ribbons 41, 43. A second set of rolls 49, 50 bonds together the edge portions and the strip may be reheated for a shearing operation wherein an interleaved comb-like structure is formed. Rolls 51, 52 and 53, 54 have knife edges which shear the strip into a pair of combs (56) having interengaged teeth (57), Fig. 12 (not shown), and the rolls coact to shape the sheath so that the core is completely enclosed. The strip may also be sheared so as to form combs 60, 61, the latter having two rows of teeth, which may be aligned or staggered, and which are bent upwardly. The teeth of the comb 60 may be bent similarly. The comb 61 is secured to a tube 65 by projecting molten metal from a nozzle 66, the subsequent pressure being applied by a roller 67. Pairs of combs 60 are similarly secured, Fig. 27 (not shown).
GB4381466A 1965-09-30 1966-09-30 Improvements in or relating to Heat Exchangers Expired GB1163331A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US496235A US3397440A (en) 1965-09-30 1965-09-30 Method of making heat exchanger having extended surface
SE15115/65A SE330363B (en) 1965-09-01 1965-11-23

Publications (1)

Publication Number Publication Date
GB1163331A true GB1163331A (en) 1969-09-04

Family

ID=26656029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4381466A Expired GB1163331A (en) 1965-09-30 1966-09-30 Improvements in or relating to Heat Exchangers

Country Status (4)

Country Link
CH (1) CH442384A (en)
DE (1) DE1501503A1 (en)
GB (1) GB1163331A (en)
NL (1) NL6613808A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146423A (en) * 1984-09-07 1985-04-17 Redpoint Limited Heat transfer devices
EP0181661A1 (en) * 1984-10-30 1986-05-21 Koninklijke Philips Electronics N.V. Absorption heat pump comprising an integrated generator and rectifier
EP0181662A1 (en) * 1984-10-30 1986-05-21 Koninklijke Philips Electronics N.V. Heat exchanger comprising a finned pipe
EP0182410A1 (en) * 1984-10-30 1986-05-28 Koninklijke Philips Electronics N.V. Absorption heat pump
FR2878948A1 (en) * 2004-12-07 2006-06-09 Renault Sas Internal combustion engine cooling radiator for motor vehicle, has set of units which modifies flow of fluid around tubes, where each unit is composed of thin plates made of materials having different thermal expansion coefficients

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020011B4 (en) 2000-04-22 2007-10-18 BRÜNDERMANN, Georg Process for the production of finned tubes and a finned tube produced therefrom

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146423A (en) * 1984-09-07 1985-04-17 Redpoint Limited Heat transfer devices
EP0181661A1 (en) * 1984-10-30 1986-05-21 Koninklijke Philips Electronics N.V. Absorption heat pump comprising an integrated generator and rectifier
EP0181662A1 (en) * 1984-10-30 1986-05-21 Koninklijke Philips Electronics N.V. Heat exchanger comprising a finned pipe
EP0182410A1 (en) * 1984-10-30 1986-05-28 Koninklijke Philips Electronics N.V. Absorption heat pump
FR2878948A1 (en) * 2004-12-07 2006-06-09 Renault Sas Internal combustion engine cooling radiator for motor vehicle, has set of units which modifies flow of fluid around tubes, where each unit is composed of thin plates made of materials having different thermal expansion coefficients

Also Published As

Publication number Publication date
DE1501503A1 (en) 1969-12-18
CH442384A (en) 1967-08-31
NL6613808A (en) 1967-03-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee