GB800265A - Improvements in or relating to heat transfer element - Google Patents
Improvements in or relating to heat transfer elementInfo
- Publication number
- GB800265A GB800265A GB1172156A GB1172156A GB800265A GB 800265 A GB800265 A GB 800265A GB 1172156 A GB1172156 A GB 1172156A GB 1172156 A GB1172156 A GB 1172156A GB 800265 A GB800265 A GB 800265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ribs
- fin
- tube
- strip
- heat
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
-
- 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
- F28F1/122—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 being formed of wires
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
800,265. Making heat-exchange elements. DAVIES, G. April 17, 1956, No. 11721/56. Class 83 (2). [Also in Group XIII] A fin for a heat-transfer element is made by making a series of cuts 2a extending inwardly front both longitudinal edges 3, 4 of a metal strip, to form a series of aligned pairs of ribs 5 extending from a sping 6, and bending the ribs out of the plane of the strip, and inwardly of the spine to position the free ends 9 of each pair in abutting relationship over the spine and spaced therefrom. The ribs may be curved throughout their length or they may only be curved near their outer ends, Fig. 9 (not shown). The strip is preferably of copper or aluminium and may have a thick centre part 11 forming the spine 6, Fig. 5, and tapered edge portions 12 forming the ribs. One side 13 of the strip may be flat or both sides may taper, Fig. 6 (not shown). After cutting and bending of the ribs the fin 10 is curved into a helix, Fig. 4. The cutting, bending and longitudinal curving of the fin may be performed by a single set of guillotine blades. To form a heat-transfer element, the fin is wound under tension on a tube 19, Fig. 7, preferably as it leaves the guillotine, the tube being rotated intermittently to facilitate winding. To aid heat transfer the tube may be coated with powdered aluminium, copper or other metal. Flanges 20 soldered to the tube have fingers 21 engaging the adjacent ribs to hold the fin in position. Alternatively the fin may be brazed or soldered to the tube, e.g. by dipping in a solder bath which also solders together the abutting ends of the ribs 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1172156A GB800265A (en) | 1956-04-17 | 1956-04-17 | Improvements in or relating to heat transfer element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1172156A GB800265A (en) | 1956-04-17 | 1956-04-17 | Improvements in or relating to heat transfer element |
Publications (1)
Publication Number | Publication Date |
---|---|
GB800265A true GB800265A (en) | 1958-08-20 |
Family
ID=9991457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1172156A Expired GB800265A (en) | 1956-04-17 | 1956-04-17 | Improvements in or relating to heat transfer element |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB800265A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4184544A (en) * | 1977-10-31 | 1980-01-22 | Ullmer Harold J | Apparatus and method for recovering waste heat from flue gases |
US4187905A (en) * | 1977-11-14 | 1980-02-12 | Isenberg Raymond C | Attachable pipe radiator |
EP0214784A1 (en) * | 1985-08-21 | 1987-03-18 | Alcan International Limited | Finned heat transfer device and method for making same |
GB2223301A (en) * | 1988-07-08 | 1990-04-04 | H E T Limited | Finned heat exchanger tubes |
-
1956
- 1956-04-17 GB GB1172156A patent/GB800265A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4184544A (en) * | 1977-10-31 | 1980-01-22 | Ullmer Harold J | Apparatus and method for recovering waste heat from flue gases |
US4187905A (en) * | 1977-11-14 | 1980-02-12 | Isenberg Raymond C | Attachable pipe radiator |
EP0214784A1 (en) * | 1985-08-21 | 1987-03-18 | Alcan International Limited | Finned heat transfer device and method for making same |
GB2223301A (en) * | 1988-07-08 | 1990-04-04 | H E T Limited | Finned heat exchanger tubes |
US5031694A (en) * | 1988-07-08 | 1991-07-16 | H.E.T. Limited | Heat exchange device and method of manufacture therefor |
GB2223301B (en) * | 1988-07-08 | 1992-12-16 | H E T Limited | Heat exchange device and method of manufacture therefor |
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