GB322840A - Improvements in or relating to rotary fans - Google Patents
Improvements in or relating to rotary fansInfo
- Publication number
- GB322840A GB322840A GB2879128A GB2879128A GB322840A GB 322840 A GB322840 A GB 322840A GB 2879128 A GB2879128 A GB 2879128A GB 2879128 A GB2879128 A GB 2879128A GB 322840 A GB322840 A GB 322840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- blade
- disc
- radius
- secured
- 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
- F04D29/34—Blade mountings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
322,840. Bothezat, G. de. Oct. 6, 1928. Impeller blades.- A fan consisting of blades 17 formed integral with or secured to a central disc 10 has the disc diameter not less than 0.35 of the overall diameter, the sum of the blade widths w, Fig. 9, at any radius r between 1.6 # and 2.4 # of such radius, and the blade angle b, Fig. 6, between 15‹ and 45‹. The length R of a blade is preferably more than twice the greatest width Wm, Fig. 9, the number of blades greater than 15 and the spacing h, Fig. 6, not less than half the average width w. A metal sheet may be stamped out to form the blades and central disc, this being corrugated at its periphery, or separate blades may be secured by angular brackets 19, Fig. 3, or by integral angular tongues, to the disc 10, the other corners being riveted directly to another disc 11. The blades may be parallel or tapered, flat or shaped as in Fig. 6, and of constant or varying angle b. If curved the line c, joining the edges of blade, is 5 to 20 times as long as its maximum perpendicular distance from the blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2879128A GB322840A (en) | 1928-10-06 | 1928-10-06 | Improvements in or relating to rotary fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2879128A GB322840A (en) | 1928-10-06 | 1928-10-06 | Improvements in or relating to rotary fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB322840A true GB322840A (en) | 1929-12-19 |
Family
ID=10281224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2879128A Expired GB322840A (en) | 1928-10-06 | 1928-10-06 | Improvements in or relating to rotary fans |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB322840A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2521231A1 (en) * | 1982-02-05 | 1983-08-12 | Hudson Products Corp | Hollow blade for axial flow fan - has inner ends of outer plastics sections secured to metal inner portions attached to hub |
| GB2361034A (en) * | 2000-04-05 | 2001-10-10 | Hansen Transmissions Int | Air impellor formed from sheet material |
| WO2004094836A1 (en) | 2003-04-21 | 2004-11-04 | Intel Corporation | High performance axial fan |
-
1928
- 1928-10-06 GB GB2879128A patent/GB322840A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2521231A1 (en) * | 1982-02-05 | 1983-08-12 | Hudson Products Corp | Hollow blade for axial flow fan - has inner ends of outer plastics sections secured to metal inner portions attached to hub |
| GB2361034A (en) * | 2000-04-05 | 2001-10-10 | Hansen Transmissions Int | Air impellor formed from sheet material |
| WO2004094836A1 (en) | 2003-04-21 | 2004-11-04 | Intel Corporation | High performance axial fan |
| US6902377B2 (en) | 2003-04-21 | 2005-06-07 | Intel Corporation | High performance axial fan |
| CN1318764C (en) * | 2003-04-21 | 2007-05-30 | 英特尔公司 | High performance axial fan |
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