GB1141270A - Improvements in or relating to air-moving fans, e.g. for cooling towers - Google Patents
Improvements in or relating to air-moving fans, e.g. for cooling towersInfo
- Publication number
- GB1141270A GB1141270A GB5834366A GB5834366A GB1141270A GB 1141270 A GB1141270 A GB 1141270A GB 5834366 A GB5834366 A GB 5834366A GB 5834366 A GB5834366 A GB 5834366A GB 1141270 A GB1141270 A GB 1141270A
- Authority
- GB
- United Kingdom
- Prior art keywords
- edges
- fingers
- blade
- arms
- dec
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,141,270. Axial-flow fans. EDGAR ALLEN AEREX Ltd. Dec. 14, 1967 [Dec. 30, 1966], No. 58343/66. Heading F1C. A blade of an air-moving fan e. g. for a cooling tower, comprises a vane portion 10, Fig. 1, of metal or plastics material and of hollow aerofoil cross-section, and a root portion 11. The two portions 10, 11 are joined in a manner which improves the fatigue life of the blade when subjected to vibration stresses, particularly when the blade is of considerable length, e. g. 20 feet. The portion 11 has a platform 31 integrally provided with a pair of fingers 32, Figs. 1 and 4, which are received in cut-outs 38 in the portion 10. The edges of the platform and fingers are bonded, as by welding, to the complementary edges of the portion 10. Contrary to the arrangement shown, the longitudinal edges of each of the fingers may be of equal length and joined together by a curved edge. The portion 10 may be formed from light-metal leading and trailing extrusions which are joined together by longitudinal welds 24 along overlapping and interengaging edges (21, 22, 23), Fig. 3 (not shown). A number of blades 10, 11 may be assembled to a fan hub by gripping the stubs 30 by pairs of clamps set into the ends of channelsection arms radiating from a central boss and welded to a dished cover plate and to adjacent arms. The cover plate may have flanges which extend between and are welded to the arms.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5834366A GB1141270A (en) | 1966-12-30 | 1966-12-30 | Improvements in or relating to air-moving fans, e.g. for cooling towers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5834366A GB1141270A (en) | 1966-12-30 | 1966-12-30 | Improvements in or relating to air-moving fans, e.g. for cooling towers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1141270A true GB1141270A (en) | 1969-01-29 |
Family
ID=10481376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5834366A Expired GB1141270A (en) | 1966-12-30 | 1966-12-30 | Improvements in or relating to air-moving fans, e.g. for cooling towers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1141270A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468067A1 (en) * | 1979-10-25 | 1981-04-30 | Szelloezoe Muevek | STRUCTURAL ELEMENT FOR APPARATUS OR MACHINES IN WHICH THE FLOWING OF A FLUID IS INVOLVED |
JPS5927197U (en) * | 1982-08-12 | 1984-02-20 | 昭和アルミニウム株式会社 | impeller blades |
US7198472B2 (en) | 2004-12-10 | 2007-04-03 | Rolls-Royce Plc | Platform mounted components |
EP2189662A3 (en) * | 2008-11-25 | 2012-06-27 | General Electric Company | Vane with reduced stress |
-
1966
- 1966-12-30 GB GB5834366A patent/GB1141270A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468067A1 (en) * | 1979-10-25 | 1981-04-30 | Szelloezoe Muevek | STRUCTURAL ELEMENT FOR APPARATUS OR MACHINES IN WHICH THE FLOWING OF A FLUID IS INVOLVED |
JPS5927197U (en) * | 1982-08-12 | 1984-02-20 | 昭和アルミニウム株式会社 | impeller blades |
JPS638876Y2 (en) * | 1982-08-12 | 1988-03-16 | ||
US7198472B2 (en) | 2004-12-10 | 2007-04-03 | Rolls-Royce Plc | Platform mounted components |
EP2189662A3 (en) * | 2008-11-25 | 2012-06-27 | General Electric Company | Vane with reduced stress |
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