GB2005376A - Helically corrugated tubing - Google Patents

Helically corrugated tubing

Info

Publication number
GB2005376A
GB2005376A GB7834150A GB7834150A GB2005376A GB 2005376 A GB2005376 A GB 2005376A GB 7834150 A GB7834150 A GB 7834150A GB 7834150 A GB7834150 A GB 7834150A GB 2005376 A GB2005376 A GB 2005376A
Authority
GB
United Kingdom
Prior art keywords
corrugations
tube
corrugated tubing
helically corrugated
sections
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
GB7834150A
Other versions
GB2005376B (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.)
SPIRAL TUBING CORP
Original Assignee
SPIRAL TUBING CORP
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 SPIRAL TUBING CORP filed Critical SPIRAL TUBING CORP
Publication of GB2005376A publication Critical patent/GB2005376A/en
Application granted granted Critical
Publication of GB2005376B publication Critical patent/GB2005376B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/14—Twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/30—Corrugating of tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • F16L9/06—Corrugated pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • 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
    • F28F1/08—Tubular elements crimped or corrugated in longitudinal section

Landscapes

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

Abstract

The invention relates to improved helically corrugated tubing with corrugations of variable depth which may be manufactured in a twisting machine by rotating one end of a deformable tube T relative to the opposite end and simultaneously applying axially directed forces to the tube to progressively develop the helical corrugations in the tube wall. The depth of the corrugations is varied by means of a tapered mandrel 50 which is located within the tube while the corrugations are being formed. Tubing sections with variable depth corrugations define flow paths in which the effective cross- sectional area varies correspondingly, and such sections are useful in various heat exchangers. <IMAGE>
GB7834150A 1977-09-29 1978-08-22 Helical corrugated tubing and a method of making same Expired GB2005376B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83771877A 1977-09-29 1977-09-29

Publications (2)

Publication Number Publication Date
GB2005376A true GB2005376A (en) 1979-04-19
GB2005376B GB2005376B (en) 1982-05-26

Family

ID=25275221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834150A Expired GB2005376B (en) 1977-09-29 1978-08-22 Helical corrugated tubing and a method of making same

Country Status (4)

Country Link
JP (1) JPS5451962A (en)
CA (1) CA1104073A (en)
DE (1) DE2842249A1 (en)
GB (1) GB2005376B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061572C (en) * 1996-06-19 2001-02-07 曾绍谦 Extrusion and forging manufacturing device for metal flower tube unit embossment
ES2173764A1 (en) * 1997-07-07 2002-10-16 Tecnica Y Caldereria S A L Tec Heat exchanger tubes corrugation machine consists of a revolving perforated plate actuated by a moving carriage and having tube press jaws

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196124A (en) * 1982-05-11 1983-11-15 Sato Koki:Kk Manufacture of flexible pipe
JP2010091266A (en) * 2004-08-26 2010-04-22 Mitsubishi Electric Corp Twisted tube type heat exchanger
JP5293584B2 (en) * 2009-12-14 2013-09-18 三菱電機株式会社 Twisted tube heat exchanger and method of manufacturing twisted tube heat exchanger
JP2021141640A (en) * 2020-03-02 2021-09-16 東芝三菱電機産業システム株式会社 Cooler and totally-enclosed external fan type motor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982369A (en) * 1930-06-26 1934-11-27 Louis H Brinkman Method and machine for making corrugated tubes
GB563074A (en) * 1943-04-15 1944-07-27 Calvert & Co Ab Improvements in economisers and similar heat exchange apparatus
US2913009A (en) * 1956-07-16 1959-11-17 Calumet & Hecla Internal and internal-external surface heat exchange tubing
FR1217881A (en) * 1958-12-11 1960-05-06 High-development heat exchange surface and method for its execution and use
US3015355A (en) * 1959-07-06 1962-01-02 Gen Gas Light Co Method for forming spirally ribbed tubing
FR1385985A (en) * 1963-03-15 1965-01-15 Flexible synthetic hose
GB1162958A (en) * 1967-02-27 1969-09-04 Metal Containers Ltd Sheet Metal Shipping Container
DE1659182B1 (en) * 1968-02-24 1971-02-11 Pforzheim Metallschlauch Sleeve tube for tendons
US3533267A (en) * 1968-07-23 1970-10-13 Turbotec Inc Method and machine for spirally corrugating tubes
US3730229A (en) * 1971-03-11 1973-05-01 Turbotec Inc Tubing unit with helically corrugated tube and method for making same
US4059004A (en) * 1976-02-20 1977-11-22 Spiral Tubing Corporation Method of forming helically corrugated tubing
BE864143A (en) * 1976-12-04 1978-06-16 Pforzheim Metallschlauch FLEXIBLE TUBING ELEMENT ESPECIALLY FOR AN EXHAUST CIRCUIT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061572C (en) * 1996-06-19 2001-02-07 曾绍谦 Extrusion and forging manufacturing device for metal flower tube unit embossment
ES2173764A1 (en) * 1997-07-07 2002-10-16 Tecnica Y Caldereria S A L Tec Heat exchanger tubes corrugation machine consists of a revolving perforated plate actuated by a moving carriage and having tube press jaws

Also Published As

Publication number Publication date
JPS5451962A (en) 1979-04-24
GB2005376B (en) 1982-05-26
CA1104073A (en) 1981-06-30
DE2842249A1 (en) 1979-04-05

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Legal Events

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