GB844724A - Improved fan blade coupling - Google Patents
Improved fan blade couplingInfo
- Publication number
- GB844724A GB844724A GB2262358A GB2262358A GB844724A GB 844724 A GB844724 A GB 844724A GB 2262358 A GB2262358 A GB 2262358A GB 2262358 A GB2262358 A GB 2262358A GB 844724 A GB844724 A GB 844724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- shank
- screws
- annular groove
- retainer ring
- 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
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 title 1
- 230000005484 gravity Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 239000007779 soft material Substances 0.000 abstract 1
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
- F04D29/34—Blade mountings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
844,724. Axial-flow fans. HUDSON ENGINEERING CORPORATION. July 15, 1958, No. 22623/58. Addition to 843,995. Class 110(1). Sockets 14, Fig. 2, bolted to a fan-hub 15, each receive the shank 13a of a fan blade. Each blade, after adjustment of its pitch, is fixed in position by means of screws 38 which forces the blade radially outwardly so that a shoulder 31 on the blade shank tightly engages retainer ring segments 32 which are housed in an annular groove in the corresponding socket 14. If necessary, one or more of the screws 38 may be tightened more than the others to adjust the position of the centre of the gravity of the blade. To remove a blade, the screws 38 are slackened off and the retainer ring segments 32 are prised from the annular groove, whereupon the blade can be tilted as shown until its tip is clear of a surrounding stationary shroud ring and then withdrawn. This procedure is reversed when inserting a blade. In addition to the annular groove in the socket 14, an annular groove for engaging the retainer ring segments 32 may also be formed on the shoulder 31. The retainer ring segments may be of conically-tapered form as shown in Fig. 6, to engage a similarly tapered shoulder 35a on the blade shank. When the blade shank is of plastics or other soft material, a metal ring 39, Fig. 2, or 47, Fig. 6, may be provided between the blade shank and the screws 38.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2262358A GB844724A (en) | 1958-07-15 | 1958-07-15 | Improved fan blade coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2262358A GB844724A (en) | 1958-07-15 | 1958-07-15 | Improved fan blade coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB844724A true GB844724A (en) | 1960-08-17 |
Family
ID=10182433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2262358A Expired GB844724A (en) | 1958-07-15 | 1958-07-15 | Improved fan blade coupling |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB844724A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1014719C2 (en) * | 2000-03-22 | 2001-09-25 | Aerpac Holding B V | Wind turbine, has asymmetrically arranged turbine vanes to reduced stall induced vibrations |
-
1958
- 1958-07-15 GB GB2262358A patent/GB844724A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1014719C2 (en) * | 2000-03-22 | 2001-09-25 | Aerpac Holding B V | Wind turbine, has asymmetrically arranged turbine vanes to reduced stall induced vibrations |
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