GB1259340A - - Google Patents
Info
- Publication number
- GB1259340A GB1259340A GB1259340DA GB1259340A GB 1259340 A GB1259340 A GB 1259340A GB 1259340D A GB1259340D A GB 1259340DA GB 1259340 A GB1259340 A GB 1259340A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slits
- fin
- slit
- row
- olofstrom
- 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
-
- 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
- F28F1/32—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 the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
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
1,259,340. Heat exchangers. OLOFSTROM A.B. 27 Nov., 1969, No. 58027/69. Heading F4S. In a heat exchanger in which tubes 1 extend through spaced-apart fin plates 2 having slits 5, 7 therein to break up the boundary layer on the fin surface of a fluid such as air flowing over the fins, the slit 7 or slits (Fig. 2) nearest the fin edge is/are shorter than the slits 5. This is said to improve heat conduction around the ends 6 of the tube cross-section. Either the first only slit in a row, as shown, or the first two slits in a row, may be of the shortened form. Preferably alternate fin portions 9 between the slits are bent out of the plane of the fin as shown in Fig. 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5802769 | 1969-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1259340A true GB1259340A (en) | 1972-01-05 |
Family
ID=10480611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1259340D Expired GB1259340A (en) | 1969-11-27 | 1969-11-27 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1259340A (en) |
-
1969
- 1969-11-27 GB GB1259340D patent/GB1259340A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |