CA2060247A1 - Heat exchanger and method of assembly thereof - Google Patents

Heat exchanger and method of assembly thereof

Info

Publication number
CA2060247A1
CA2060247A1 CA002060247A CA2060247A CA2060247A1 CA 2060247 A1 CA2060247 A1 CA 2060247A1 CA 002060247 A CA002060247 A CA 002060247A CA 2060247 A CA2060247 A CA 2060247A CA 2060247 A1 CA2060247 A1 CA 2060247A1
Authority
CA
Canada
Prior art keywords
header
openings
tube
joints
facing side
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
CA002060247A
Other languages
French (fr)
Other versions
CA2060247C (en
Inventor
Joseph F. Derisi
Lonnie E. Winston
Dudley Harrison
Ken Rawson
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.)
Transpro Inc
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 US07/657,422 external-priority patent/US5150520A/en
Application filed by Individual filed Critical Individual
Publication of CA2060247A1 publication Critical patent/CA2060247A1/en
Application granted granted Critical
Publication of CA2060247C publication Critical patent/CA2060247C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

A method of affixing a plurality of tubes having oval ends into a plurality of corresponding oval openings in the header wall of a heat exchanger in which the wall has an inner, liquid-facing side and an outer, air-facing side. The oval ends of the tubes are sized such that the minor diameter of the tube ends is greater than the minor diameter of the header openings and the major diameter of the tube ends is less than the major diameter of the header openings, the circumference of the tube ends and the header openings being substantially equal. The tube ends are inserted into corresponding openings in the header wall whereupon the minor diameter of the tube ends is reduced and the major diameter of the tube ends is increased to create a substantially fully contacting fit around the circumference with said header openings. Ends of the tubes are welded to corresponding collar openings in the header wall, such that the tubes extend toward the air-facing side of the wall, to form a plurality of welded tube-to-header joints. Flux is applied by spraying or the like to the air-facing side of the tube-to-header joints. Thereafter, a lead/tin or other molten solder is applied to the liquid-facing side of the tube-to-header joint by dipping or wave solder techniques and flowed into any voids in the welded joints to substantially seal the joints against leakage of liquid.
Only those joints having potential liquid leaking voids receive the solder - sound, liquid-tight welded joints axe not solder sealed.
CA002060247A 1991-02-19 1992-01-29 Heat exchanger and method of assembly thereof Expired - Fee Related CA2060247C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US657,422 1991-02-19
US07/657,422 US5150520A (en) 1989-12-14 1991-02-19 Heat exchanger and method of assembly thereof

Publications (2)

Publication Number Publication Date
CA2060247A1 true CA2060247A1 (en) 1992-08-20
CA2060247C CA2060247C (en) 2001-10-30

Family

ID=24637122

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002060247A Expired - Fee Related CA2060247C (en) 1991-02-19 1992-01-29 Heat exchanger and method of assembly thereof

Country Status (4)

Country Link
KR (1) KR920016186A (en)
AU (1) AU647855B2 (en)
CA (1) CA2060247C (en)
MX (1) MX9200409A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488627A (en) * 1946-02-28 1949-11-22 Young Radiator Co Tube and header-plate assembly for heat-exchange units
WO1985001680A1 (en) * 1983-10-19 1985-04-25 The Allen Group, Inc. A method of affixing tubes to headers in a heat exchanger and a heat exchanger assembly of tubes, headers, and fins
AU633164B2 (en) * 1989-12-14 1993-01-21 Transpro, Inc. Heat exchanger and method of assembly thereof

Also Published As

Publication number Publication date
MX9200409A (en) 1993-07-01
KR920016186A (en) 1992-09-24
AU8999291A (en) 1992-08-27
AU647855B2 (en) 1994-03-31
CA2060247C (en) 2001-10-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed