WO2005121680A1 - Radiator tube - Google Patents
Radiator tube Download PDFInfo
- Publication number
- WO2005121680A1 WO2005121680A1 PCT/AU2005/000827 AU2005000827W WO2005121680A1 WO 2005121680 A1 WO2005121680 A1 WO 2005121680A1 AU 2005000827 W AU2005000827 W AU 2005000827W WO 2005121680 A1 WO2005121680 A1 WO 2005121680A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- edge
- tube
- fins
- radiator
- fin
- Prior art date
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
- F28F1/24—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 transversely
Definitions
- This invention relates to radiator tubes and in particular finned radiator tubes.
- the finned radiator tubes to which the invention relates comprise tubes having ends which are adapted to be receivable in the header tanks of the radiator and have an intermediate portion between the ends which supports a set of fins.
- the invention particularly relates to such tubes where the intermediate portion has a generally rectangular configuration and where the fins are supported along the sides of the tubes which have the greater width.
- the fins can be formed as individual fins or alternatively may be formed from a folded length of material bonded to the tube.
- the ends have a circular cross-section and are received in apertures provided in the respective wall of the respective header and each aperture is usually associated with a seal which sealingly retains the tubes within the tank.
- Figure 2 is an example of conventional practice where the fins 13 have a generally rectangular configuration and where the forward and the rear edges 15 and 17 respectively are generally in line with the forward most and rear most end faces of the tube 11 respectively.
- a difficulty which has been encountered with such fins relates to the tendency for the spaces between adjacent fins to become clogged by debris and the like.
- a development of the prior art shown at Figure 2 comprises an arrangement as shown at Figure 1 which is the subject Australian patent specification AU-B-40475/93.
- Finned radiator tubes of the form as shown at Figures 1 and 2 present sharp edges which are created at the junctions 23 between the leading and trailing edges 15 and 17 and the side edges 19 of the fins 13. The presence of such sharp edges greatly increases the likelihood of injuries to the hands of the personnel during the removal and subsequent reinsertion of the tube. Furthermore because of the nature of the action being applied in removing and installing the radiator tubes it is not practical for an operator to use gloves or like protective means because the operator is very reliant upon their sense of touch to be aware of the action being undertaken and to determine whether the tubes have been accurately located.
- radiator design it is very desirable in radiator design that the heat transfer effected by the fins be optimised. It has been found that in the case of the prior art as shown at Figure 1 in which the surface area of the fins have been reduced from the arrangement shown at Figure 2 by forming the leading and trailing edges 15 and 17 respectively, to be angled at an acute angle relative to the central axis X of the tube presents the disadvantage of significantly reducing the surface area of the fins. In particular such an arrangement reduces the length of the side edges 19 of the fins. In use these side edges will be expected to be at the lower temperature when compared to the remainder of the fin when the fin is subjected to a flow of a cooling medium which passes between the fins in a direction parallel to the central axis X. In this regard it has been determined that there is a significant advantage in maximising the portions of the fins which are maintained at the lower temperatures.
- the invention resides in a radiator tube having a portion at each end which is adapted to be received in a header tank of a radiator and an intermediate portion between the ends, said intermediate portion having a cross section defined by a pair of side walls and a pair of end walls in which the side walls are generally parallel and have a spacing between them which is less than the spacing between the end walls, the side walls supporting a set of generally parallel fins, each fin extending laterally from the tube, each fin having an inner side edge thermally communicating with the respective side wall of the tube and an outer side edge in a substantially spaced parallel relationship with the inner side edge, a forward edge and a rear edge, said forward edge having an arcuate configuration taking the form of a continuous curve extending from the forward most edge of the fin to the outer side edge.
- each fin has an arcuate configuration taking the form of a continuous curve from the rearmost edge to the outer side edge.
- the curvature of the forward edge is part circular.
- the curvature of the rear edge is part circular.
- the profile of the front edge of the fins define the quadrant of circle.
- the profile of the rear edge of the fins define the quadrant of circle.
- the fins are individually bonded to the tube. According to a preferred feature of the invention the fins are formed integrally with the tube.
- the fins are formed from a folded length of material having a series of inner folds and a series of outer folds with the fins defined between the inner and outer folds wherein the inner fold is bonded to the tube and defines the inner side edge of the fins extending therefrom and the outer fold defines the outer side edge.
- FIGS 1 and 2 are illustrations of prior art to the present invention
- Figure 3 is a cross sectional of a finned radiator tube according to the embodiment.
- Figure 4 is a cross section of a finned radiator tube according to the embodiment with comparative illustrations of the prior art fins;
- Figure 5 is an illustration of an array radiator tubes according to the embodiment in a radiator core.
- the embodiment comprises a radiator tube 111 having end portions (not shown) which have a circular cross section and which are dimensioned to be received in the header tanks of the radiator.
- the tubes further comprise an intermediate portion which has a generally rectangular section as shown at Figure 3 which comprises a pair of side walls 121 which are parallel and curved end walls 125 where the central axis X of the tube which is parallel to the side walls 121 is greater in length than the axis transverse thereto.
- the intermediate portion supports a set of fins 113 which are formed from a length of material which has been folded into a convoluted form to provide a series of inner folds and a series of outer folds and set of fins 113 which extend between the inner and outer folds, are generally parallel to each other and are transverse to the central longitudinal axis X of the tube to extend laterally from the sidewalls 121 of the tube.
- the material of which the fins comprises a suitably conductive metal such as copper or like conductive metal.
- the inner folds define the inner side edges of the fins and are bonded to the external face of the side walls 121 of the tube 111 and the outer folds define the outer side edges 119 of the fins and which are parallel to the inner side edges.
- a forward edge 115 and a rearward edge 117 is defined between the inner and outer edges.
- the forward edge and rearward edges 115 and 117 respectively are curved such that they are define a quadrant of a circle having a radius corresponding to the width of the fins between the inner side edge and the outer side edge 119.
- the advantage that is offered by the embodiment over the prior art as shown at Figures 1 and 2 and as described above comprises the circumstance that there is a significant reduction in the likelihood of injury to a worker manipulating a radiator tube according to the embodiment when installing or removing the radiator tubes into or from a radiator respectively. This is due to the absence of the sharp junction between the forward and rear trailing edges 115 and 117 and the outer side edge 119 of each fin. Therefore it is possible for worker to manipulate a radiator tube according to the embodiment with bare hands with a reduced likelihood of injury.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/628,969 US20070261827A1 (en) | 2004-06-10 | 2005-06-10 | Radiator Tube |
MXPA06014436A MXPA06014436A (en) | 2004-06-10 | 2005-06-10 | Radiator tube. |
AU2005252716A AU2005252716B2 (en) | 2004-06-10 | 2005-06-10 | Radiator tube |
CA002569879A CA2569879A1 (en) | 2004-06-10 | 2005-06-10 | Radiator tube |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004903154 | 2004-06-10 | ||
AU2004903154A AU2004903154A0 (en) | 2004-06-10 | Radiator Tube |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005121680A1 true WO2005121680A1 (en) | 2005-12-22 |
Family
ID=35503171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2005/000827 WO2005121680A1 (en) | 2004-06-10 | 2005-06-10 | Radiator tube |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070261827A1 (en) |
CN (1) | CN101014820A (en) |
CA (1) | CA2569879A1 (en) |
MX (1) | MXPA06014436A (en) |
WO (1) | WO2005121680A1 (en) |
ZA (1) | ZA200700118B (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1701752A (en) * | 1929-02-12 | Radiatok unit | ||
DE734100C (en) * | 1939-11-01 | 1943-04-08 | Sueddeutsche Kuehler Behr | Process for the production of seamless, flat radiator finned tubes |
FR906002A (en) * | 1944-07-20 | 1945-12-20 | App G A L | finned heat exchanger |
FR1388772A (en) * | 1963-11-25 | 1965-02-12 | Svenska Metallverken Ab | Process for improving the properties of copper in particular with a view to its use for radiators, sheet metal conforming to that obtained, and radiator in particular for automobiles made with the metal thus obtained |
GB1312521A (en) * | 1969-03-18 | 1973-04-04 | Chausson Usines Sa | Tubular heat exchanger cores |
US4171015A (en) * | 1977-03-28 | 1979-10-16 | Caterpillar Tractor Co. | Heat exchanger tube and method of making same |
WO1993020397A2 (en) * | 1992-04-03 | 1993-10-14 | L&M Radiator, Inc. | Improved heat exchanger tube |
US6415854B1 (en) * | 1998-09-09 | 2002-07-09 | Outokumpu Oyj | Heat exchanger unit and use |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1401565A (en) * | 1920-06-25 | 1921-12-27 | Charles F Spery | Automobile-radiator |
US4337826A (en) * | 1979-02-26 | 1982-07-06 | Peerless Of America, Inc. | Heat exchangers and method of making same |
US5467816A (en) * | 1993-02-08 | 1995-11-21 | Larinoff; Michael W. | Finned tubes for air-cooled steam condensers |
-
2005
- 2005-06-10 US US11/628,969 patent/US20070261827A1/en not_active Abandoned
- 2005-06-10 WO PCT/AU2005/000827 patent/WO2005121680A1/en active Application Filing
- 2005-06-10 CA CA002569879A patent/CA2569879A1/en not_active Abandoned
- 2005-06-10 CN CNA2005800192180A patent/CN101014820A/en active Pending
- 2005-06-10 MX MXPA06014436A patent/MXPA06014436A/en not_active Application Discontinuation
-
2007
- 2007-01-04 ZA ZA200700118A patent/ZA200700118B/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1701752A (en) * | 1929-02-12 | Radiatok unit | ||
DE734100C (en) * | 1939-11-01 | 1943-04-08 | Sueddeutsche Kuehler Behr | Process for the production of seamless, flat radiator finned tubes |
FR906002A (en) * | 1944-07-20 | 1945-12-20 | App G A L | finned heat exchanger |
FR1388772A (en) * | 1963-11-25 | 1965-02-12 | Svenska Metallverken Ab | Process for improving the properties of copper in particular with a view to its use for radiators, sheet metal conforming to that obtained, and radiator in particular for automobiles made with the metal thus obtained |
GB1312521A (en) * | 1969-03-18 | 1973-04-04 | Chausson Usines Sa | Tubular heat exchanger cores |
US4171015A (en) * | 1977-03-28 | 1979-10-16 | Caterpillar Tractor Co. | Heat exchanger tube and method of making same |
WO1993020397A2 (en) * | 1992-04-03 | 1993-10-14 | L&M Radiator, Inc. | Improved heat exchanger tube |
US6415854B1 (en) * | 1998-09-09 | 2002-07-09 | Outokumpu Oyj | Heat exchanger unit and use |
Also Published As
Publication number | Publication date |
---|---|
MXPA06014436A (en) | 2007-05-23 |
ZA200700118B (en) | 2008-02-27 |
CN101014820A (en) | 2007-08-08 |
US20070261827A1 (en) | 2007-11-15 |
CA2569879A1 (en) | 2005-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7461685B2 (en) | Heat exchanger | |
EP1164345B1 (en) | Heat exchanger | |
US8276652B2 (en) | High performance louvered fin for heat exchanger | |
EP2778592B1 (en) | Heat exchanger assembly having split mini-louvered fins | |
EP0881448A2 (en) | Multi-bored flat tube for use in a heat exchanger and heat exchanger including said tubes | |
US20150211781A1 (en) | Air heat exchanger | |
JP5443093B2 (en) | Reinforcement structure of heat exchanger | |
JP2010019534A (en) | Heat exchanger | |
EP1985957A1 (en) | Heat exchanger for vehicle | |
JP2008170041A (en) | Heat exchanger | |
EP1239252A1 (en) | Stacked-Type, Multi-Flow Heat Exchangers | |
JP6615118B2 (en) | Vehicle heat exchanger tube and vehicle radiator comprising such a tube | |
WO2014007478A1 (en) | Tubular heat exchanger | |
AU2005252716B2 (en) | Radiator tube | |
US20070261827A1 (en) | Radiator Tube | |
US20070068662A1 (en) | Heat exchanger | |
JP2007255812A (en) | Finned heat exchanger, and air conditioner | |
CN210321335U (en) | Heat exchanger | |
WO2001029488A3 (en) | Pool heater with sinusoidal fin heat exchanger | |
JP2008291694A (en) | Fan shroud structure | |
JP3867113B2 (en) | Heat exchanger | |
JP2005147414A (en) | Heat exchanger with fin | |
JP2010014330A (en) | Heat exchanger and method for manufacturing the heat exchanger | |
CN214470212U (en) | Heat exchanger | |
US20200088474A1 (en) | Impact resistant structural radiator tube |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005252716 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2006/014436 Country of ref document: MX Ref document number: 2569879 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580019218.0 Country of ref document: CN |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
ENP | Entry into the national phase |
Ref document number: 2005252716 Country of ref document: AU Date of ref document: 20050610 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2005252716 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11628969 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 11628969 Country of ref document: US |