DE156821C - - Google Patents

Info

Publication number
DE156821C
DE156821C DENDAT156821D DE156821DA DE156821C DE 156821 C DE156821 C DE 156821C DE NDAT156821 D DENDAT156821 D DE NDAT156821D DE 156821D A DE156821D A DE 156821DA DE 156821 C DE156821 C DE 156821C
Authority
DE
Germany
Prior art keywords
screw threads
hollow
heating
pipe
pushed
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.)
Active
Application number
DENDAT156821D
Other languages
German (de)
English (en)
Publication of DE156821C publication Critical patent/DE156821C/de
Active 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
    • F28F1/12—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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
DENDAT156821D Active DE156821C (nl)

Publications (1)

Publication Number Publication Date
DE156821C true DE156821C (nl)

Family

ID=423156

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT156821D Active DE156821C (nl)

Country Status (1)

Country Link
DE (1) DE156821C (nl)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731241A (en) * 1955-09-07 1956-01-17 Joseph D Christian Heat exchange device
US2733898A (en) * 1956-02-07 christian
FR2061597A1 (nl) * 1969-09-08 1971-06-25 Turbotec Inc
US3730229A (en) * 1971-03-11 1973-05-01 Turbotec Inc Tubing unit with helically corrugated tube and method for making same
US3777343A (en) * 1971-03-11 1973-12-11 Spiral Tubing Corp Method for forming a helically corrugated concentric tubing unit
DE3047397A1 (de) * 1980-12-16 1982-07-08 Hans 6520 Worms Würzburger Vorrichtung zur entnahme von bodenwaerme

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733898A (en) * 1956-02-07 christian
US2731241A (en) * 1955-09-07 1956-01-17 Joseph D Christian Heat exchange device
FR2061597A1 (nl) * 1969-09-08 1971-06-25 Turbotec Inc
US3730229A (en) * 1971-03-11 1973-05-01 Turbotec Inc Tubing unit with helically corrugated tube and method for making same
US3777343A (en) * 1971-03-11 1973-12-11 Spiral Tubing Corp Method for forming a helically corrugated concentric tubing unit
DE3047397A1 (de) * 1980-12-16 1982-07-08 Hans 6520 Worms Würzburger Vorrichtung zur entnahme von bodenwaerme

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