GB2002893A - Finned tube, and method and apparatus for making said tube - Google Patents

Finned tube, and method and apparatus for making said tube

Info

Publication number
GB2002893A
GB2002893A GB7828769A GB7828769A GB2002893A GB 2002893 A GB2002893 A GB 2002893A GB 7828769 A GB7828769 A GB 7828769A GB 7828769 A GB7828769 A GB 7828769A GB 2002893 A GB2002893 A GB 2002893A
Authority
GB
United Kingdom
Prior art keywords
tube
fins
making
finned
finned tube
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.)
Granted
Application number
GB7828769A
Other versions
GB2002893B (en
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.)
Wieland Werke AG
Original Assignee
Wieland Werke AG
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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of GB2002893A publication Critical patent/GB2002893A/en
Application granted granted Critical
Publication of GB2002893B publication Critical patent/GB2002893B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Forging (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A finned tube is disclosed together with a process and an apparatus for making the tube. The finned tube has T-shaped fins 2 extending from the outer surface of the tube 4, the base 3 of the fins extending radially from the tube. The fins extend in a helical fashion along the tube outer surface and are arranged such that the axial spacing between adjacent fins initially increases and then decreases with increasing distance from the tube axis. <IMAGE>
GB7828769A 1977-08-09 1978-07-04 Finned tube and process and apparatus for its making Expired GB2002893B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2735762A DE2735762C2 (en) 1977-08-09 1977-08-09 Finned tube and device for its manufacture

Publications (2)

Publication Number Publication Date
GB2002893A true GB2002893A (en) 1979-02-28
GB2002893B GB2002893B (en) 1982-05-26

Family

ID=6015929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828769A Expired GB2002893B (en) 1977-08-09 1978-07-04 Finned tube and process and apparatus for its making

Country Status (9)

Country Link
JP (1) JPS5499253A (en)
AT (1) AT358612B (en)
DE (1) DE2735762C2 (en)
DK (1) DK160726C (en)
ES (1) ES244808Y (en)
FR (1) FR2400179A1 (en)
GB (1) GB2002893B (en)
IT (1) IT1105441B (en)
SE (1) SE448780B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146105A (en) * 1983-08-05 1985-04-11 Ishikawajima Harima Heavy Ind Fluidized-bed boilers
FR2590816A1 (en) * 1985-12-02 1987-06-05 Carrier Corp PROCESS AND APPARATUS FOR MANUFACTURING EXTENDED EXTERIOR SURFACE TUBES WITH MULTI-HELICOIDAL FIN FLOWS, ESPECIALLY FOR HEAT EXCHANGER EVAPORATOR TUBES

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4313248A (en) * 1977-02-25 1982-02-02 Fukurawa Metals Co., Ltd. Method of producing heat transfer tube for use in boiling type heat exchangers
DE2808080C2 (en) * 1977-02-25 1982-12-30 Furukawa Metals Co., Ltd., Tokyo Heat transfer tube for boiling heat exchangers and process for its manufacture
DE2758527C2 (en) * 1977-12-28 1985-04-25 Wieland-Werke Ag, 7900 Ulm Method and device for manufacturing a finned tube
DE2758526C2 (en) * 1977-12-28 1986-03-06 Wieland-Werke Ag, 7900 Ulm Method and device for manufacturing a finned tube
DE2803274A1 (en) * 1978-01-26 1979-08-02 Wieland Werke Ag FIBER TUBE AND THE METHOD AND DEVICE FOR THE PRODUCTION THEREOF
DE2803273A1 (en) * 1978-01-26 1979-08-02 Wieland Werke Ag FIBER TUBE AND THE METHOD AND DEVICE FOR THE PRODUCTION THEREOF
JPS59202397A (en) * 1983-04-30 1984-11-16 Kobe Steel Ltd Internally grooved pipe and manufacture thereof
DE3408626A1 (en) * 1984-03-09 1985-09-12 Wieland-Werke Ag, 7900 Ulm Wound heat exchanger, in particular for heat pumps or refrigerating plants
US4997341A (en) * 1989-08-15 1991-03-05 Bw/Ip International, Inc. Reduction of transient thermal stresses in machine components
DE10150999C2 (en) 2001-10-16 2003-08-07 Peak Werkstoff Gmbh Method of profiling the outer peripheral surface of cylinder liners

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326283A (en) * 1965-03-29 1967-06-20 Trane Co Heat transfer surface
US3383892A (en) * 1965-08-13 1968-05-21 Anaconda American Brass Co Manufacture of integrally finned tubing
GB1092150A (en) * 1965-10-19 1967-11-22 Bjorn Large A method of producing ribbed tubes of deformable material
US3602027A (en) * 1969-04-01 1971-08-31 Trane Co Simultaneous finning and reforming of tubular heat transfer surface
US3683656A (en) * 1970-03-25 1972-08-15 Carl M Lewis Heat exchanger apparatus and method of making the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146105A (en) * 1983-08-05 1985-04-11 Ishikawajima Harima Heavy Ind Fluidized-bed boilers
FR2590816A1 (en) * 1985-12-02 1987-06-05 Carrier Corp PROCESS AND APPARATUS FOR MANUFACTURING EXTENDED EXTERIOR SURFACE TUBES WITH MULTI-HELICOIDAL FIN FLOWS, ESPECIALLY FOR HEAT EXCHANGER EVAPORATOR TUBES
GB2183519A (en) * 1985-12-02 1987-06-10 Carrier Corp Method of and apparatus for producing helically finned tubes
GB2183519B (en) * 1985-12-02 1989-10-04 Carrier Corp Method and apparatus for producing helically finned tubes

Also Published As

Publication number Publication date
ES244808Y (en) 1980-12-01
GB2002893B (en) 1982-05-26
ATA488678A (en) 1980-02-15
ES244808U (en) 1980-06-16
SE7808061L (en) 1979-02-10
DE2735762C2 (en) 1983-11-24
DK311378A (en) 1979-02-10
DK160726B (en) 1991-04-08
IT7850678A0 (en) 1978-08-09
JPS5499253A (en) 1979-08-04
AT358612B (en) 1980-09-25
DE2735762A1 (en) 1979-02-22
FR2400179A1 (en) 1979-03-09
IT1105441B (en) 1985-11-04
DK160726C (en) 1991-09-23
SE448780B (en) 1987-03-16

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Legal Events

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