GB991444A - Improvements in or relating to radial vane control means for fans - Google Patents
Improvements in or relating to radial vane control means for fansInfo
- Publication number
- GB991444A GB991444A GB17179/63A GB1717963A GB991444A GB 991444 A GB991444 A GB 991444A GB 17179/63 A GB17179/63 A GB 17179/63A GB 1717963 A GB1717963 A GB 1717963A GB 991444 A GB991444 A GB 991444A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vanes
- links
- ring
- inlet
- movement
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
Abstract
991,444. Centrifugal and axial-flow fans. DAVIDSON & CO. Ltd. April 21, 1964 [May 1, 1963], No. 17179/63. Heading F1C. In a centrifugal or axial-flow fan having a number of rotatably adjustable and substantially radial vanes in its inlet for controlling the fan output, some of the vanes have different rates of movement from the remainder whilst all simultaneously assume the fully open and fully closed positions. Guide vanes 16, Figs 2 and 5., are pivoted at their radially inner ends to a central boss and at their outer ends to pivots 17 connected through linkages 23 to 26 to a common ring 19 angularly adjustably mounted on rollers 20. Alternatively, each vane may be provided with an individual shaft. The ring 19 may be adjusted by an hydraulic piston-cylinder assembly 21, a solenoid or other electrical means, or manually. The links 23a (Fig. 5) associated with vanes 16a are of a different length from the links 23 so that the vanes 16a, as compared with vanes 16, initially open more rapidly but are slower in their final movement to their fully open position. Alternatively or additionally the links 25 may be of different lengths. If the majority of the vanes are arranged to close quickly, the links 23 of some or all the vanes may have spring or other resilient means to permit further movement of the ring 19 and the associated links after full closure of the vanes. In an alternative embodiment, Fig. 8 (not shown), the vanes are arranged within the inlet eye 12 with their axes normal to the conical surface thereof. In a further embodiment, Fig. 9, the vanes are arranged in the eye 12 in each of the two suction boxes 29 of a double inlet fan, vane adjustment being achieved by an actuating device (not shown) moving a lever 38 which in turn rotates adjusting rings 19 through a lay-shaft 37 and linkages 33 to 36.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17179/63A GB991444A (en) | 1963-05-01 | 1963-05-01 | Improvements in or relating to radial vane control means for fans |
BE647380D BE647380A (en) | 1963-05-01 | 1964-04-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17179/63A GB991444A (en) | 1963-05-01 | 1963-05-01 | Improvements in or relating to radial vane control means for fans |
Publications (1)
Publication Number | Publication Date |
---|---|
GB991444A true GB991444A (en) | 1965-05-05 |
Family
ID=10090643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17179/63A Expired GB991444A (en) | 1963-05-01 | 1963-05-01 | Improvements in or relating to radial vane control means for fans |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE647380A (en) |
GB (1) | GB991444A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4299535A (en) * | 1980-11-24 | 1981-11-10 | The Trane Company | Fan inlet guide vane assembly |
EP0041712A1 (en) * | 1980-06-06 | 1981-12-16 | Nissan Motor Co., Ltd. | Turbo compressor having a surge suppressing arrangement |
GB2410530A (en) * | 2004-01-27 | 2005-08-03 | Rolls Royce Plc | Electrically actuated stator vane arrangement |
-
1963
- 1963-05-01 GB GB17179/63A patent/GB991444A/en not_active Expired
-
1964
- 1964-04-30 BE BE647380D patent/BE647380A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0041712A1 (en) * | 1980-06-06 | 1981-12-16 | Nissan Motor Co., Ltd. | Turbo compressor having a surge suppressing arrangement |
US4299535A (en) * | 1980-11-24 | 1981-11-10 | The Trane Company | Fan inlet guide vane assembly |
GB2410530A (en) * | 2004-01-27 | 2005-08-03 | Rolls Royce Plc | Electrically actuated stator vane arrangement |
Also Published As
Publication number | Publication date |
---|---|
BE647380A (en) | 1964-08-17 |
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