NO145855C - Roer med innvendige overflateforstoerrende elementer, samt framgangsmaate og anordning for framstilling av et slikt roer - Google Patents

Roer med innvendige overflateforstoerrende elementer, samt framgangsmaate og anordning for framstilling av et slikt roer

Info

Publication number
NO145855C
NO145855C NO783423A NO783423A NO145855C NO 145855 C NO145855 C NO 145855C NO 783423 A NO783423 A NO 783423A NO 783423 A NO783423 A NO 783423A NO 145855 C NO145855 C NO 145855C
Authority
NO
Norway
Prior art keywords
rods
preparing
procedure
rod
internal surface
Prior art date
Application number
NO783423A
Other languages
English (en)
Norwegian (no)
Other versions
NO783423L (no
NO145855B (no
Inventor
Bertil Hjalmar Sjoeholm
Original Assignee
Goetaverken Angteknik Ab
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 Goetaverken Angteknik Ab filed Critical Goetaverken Angteknik Ab
Publication of NO783423L publication Critical patent/NO783423L/no
Publication of NO145855B publication Critical patent/NO145855B/no
Publication of NO145855C publication Critical patent/NO145855C/no

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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/203—Stud welding of cooling fins

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Moulding By Coating Moulds (AREA)
NO783423A 1977-10-27 1978-10-10 Roer med innvendige overflateforstoerrende elementer, samt framgangsmaate og anordning for framstilling av et slikt roer NO145855C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7712118A SE423149B (sv) 1977-10-27 1977-10-27 Forfarande och anordning for tillverkning av tuber med pa insidan fastsvetsade pinnar

Publications (3)

Publication Number Publication Date
NO783423L NO783423L (no) 1979-04-30
NO145855B NO145855B (no) 1982-03-01
NO145855C true NO145855C (no) 1982-06-09

Family

ID=20332699

Family Applications (1)

Application Number Title Priority Date Filing Date
NO783423A NO145855C (no) 1977-10-27 1978-10-10 Roer med innvendige overflateforstoerrende elementer, samt framgangsmaate og anordning for framstilling av et slikt roer

Country Status (11)

Country Link
US (2) US4241287A (da)
JP (1) JPS5471763A (da)
BR (1) BR7807084A (da)
CA (1) CA1116381A (da)
DE (1) DE2841843A1 (da)
DK (1) DK476278A (da)
FI (1) FI65327C (da)
FR (1) FR2407446B1 (da)
GB (1) GB2006946B (da)
NO (1) NO145855C (da)
SE (1) SE423149B (da)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472962A1 (fr) * 1980-01-08 1981-07-10 Creusot Loire Procede et dispositif de soudage d'accessoires sur pieces chaudronnees
IT1184499B (it) * 1985-04-26 1987-10-28 Italtel Tecnomecc Metodo per la saldatura automatica di un corpo piastriforme all'interno di barre metalliche e macchina per la implementazione di tale metodo
US5138128A (en) * 1991-01-29 1992-08-11 Foster Wheeler Energy Corporation Front end fixture and method for stud welding gun
DE19654367A1 (de) † 1996-12-24 1998-06-25 Behr Gmbh & Co Verfahren zum Anbringen von Laschen und/oder Vorsprüngen an einem Feinblech und Feinblech mit Laschen und/oder Vorrichtungen sowie Rechteckrohr aus Feinblechen
DE19654366B4 (de) * 1996-12-24 2005-10-20 Behr Gmbh & Co Kg Strömungskanal, insbesondere für einen Abgaswärmeübertrager
AT409794B (de) * 1998-11-30 2002-11-25 Vaillant Gmbh Wärmetauscher
US6675746B2 (en) 1999-12-01 2004-01-13 Advanced Mechanical Technology, Inc. Heat exchanger with internal pin elements
US6957629B1 (en) 2004-08-20 2005-10-25 Bock Water Heaters, Inc. Water heater flue with improved heat transfer

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1101858A (en) * 1910-06-16 1914-06-30 Universal Electric Welding Co Process of joining metal.
US1630338A (en) * 1919-06-23 1927-05-31 Simmons Co Metal joint
US1720244A (en) * 1926-04-05 1929-07-09 Smith John William Stream-unifying apparatus
US1857338A (en) * 1928-05-23 1932-05-10 Sjolander Carl Gustaf Leonard Machine for welding tubular objects
US1929444A (en) * 1929-07-17 1933-10-10 Murray Heat conducting element
US2149696A (en) * 1936-03-13 1939-03-07 Metropolitan Eng Co Method of making heat exchangers
US2208676A (en) * 1938-08-10 1940-07-23 Kosman Milton Pipe welding machine
US2364130A (en) * 1942-03-02 1944-12-05 Drayer & Hanson Inc Heat exchange apparatus
US2365670A (en) * 1942-09-12 1944-12-26 Us Rubber Co Method of making heat exchange tubes
US2473633A (en) * 1946-03-20 1949-06-21 Brown Fintube Co Method of welding fins to tubular members by electric resistance welding
US2873354A (en) * 1954-08-23 1959-02-10 Gregory Ind Inc Method of making a heat exchanger
US3299248A (en) * 1963-05-15 1967-01-17 Chicago United Products Compan Apparatus for electric welding fasteners to automobile bodies
GB1376451A (en) * 1971-11-08 1974-12-04 Trojani B Finned tube heat exchange element
US3961741A (en) * 1972-09-13 1976-06-08 Foster Wheeler Energy Corporation Heat transfer tubes with internal extended surface

Also Published As

Publication number Publication date
DK476278A (da) 1979-04-28
FR2407446A1 (fr) 1979-05-25
FI65327B (fi) 1983-12-30
NO783423L (no) 1979-04-30
SE7712118L (sv) 1979-04-28
US4383163A (en) 1983-05-10
JPS5471763A (en) 1979-06-08
GB2006946B (en) 1983-01-26
FI65327C (fi) 1984-04-10
BR7807084A (pt) 1979-05-08
CA1116381A (en) 1982-01-19
SE423149B (sv) 1982-04-13
DE2841843A1 (de) 1979-05-03
FI783176A7 (fi) 1979-04-28
GB2006946A (en) 1979-05-10
US4241287A (en) 1980-12-23
NO145855B (no) 1982-03-01
FR2407446B1 (fr) 1985-11-08

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