FIELD: engines and pumps.
SUBSTANCE: fan unit comprises radial wheel rotor 1 with front 3 and main 4 plates, vanes 5 bent backward and arranged there between and provided with slats 24, and outlet collector 2 with taper inlet section 12, outlet section 13 and additional section 16 with slightly curved surface arranged there between, its length Lwr making at least 0.04 of diameter D of wheel rotor 1. Front plate 3 and collector outlet section 13 are arranged to form circular clearance 15 ahead of which plates 18 are mounted. Straight line connecting axis 6 and tip 27 of slat 24 does not extend beyond ±0.05 of angular pitch t of vanes 5 relative to straight line connecting point 6 and point 29 of adjunction to front plate 3 of the next vane in projection on plane perpendicular to axis 6 of wheel rotor 1.
EFFECT: higher efficiency at increased static pressure, reduced noise.
10 cl, 23 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| RADIAL IMPELLER AND AIR DUCT FAN WITH THE SAID IMPELLER | 2007 |
|
RU2330189C1 |
| RADIAL WHEEL ROTOR | 2010 |
|
RU2429385C1 |
| CENTRIFUGAL FAN (VERSIONS) | 2007 |
|
RU2330188C1 |
| PLENUM DUCT TYPE VENTILATING SYSTEM | 2005 |
|
RU2290568C1 |
| RADIAL BLOWER | 2011 |
|
RU2470193C1 |
| CHANNEL FAN | 2005 |
|
RU2289728C1 |
| CHANNEL VENTILATOR (VARIANTS) | 2005 |
|
RU2287091C1 |
| FAN SET | 2005 |
|
RU2285824C1 |
| HEATED AIR CURTAIN | 2001 |
|
RU2213911C2 |
| CENTRIFUGAL FAN (VERSIONS) | 2006 |
|
RU2338931C2 |
