FIELD: mechanical engineering; fans and ventilators.
SUBSTANCE: invention relates to impellers of axial-flow fans. According to invention, blades of impeller are arranged on load-bearing belt of housing by means of bearing cups and split embedded rings fixed by means of threaded bushings with end face grooves. If impeller housings of disk-flange type are used, shanks of blades are made sectional, with their parts mated through threaded joint with pin. Holes in shell of impeller housing are provided with flanged cylindrical bushings.
EFFECT: improved reliability of axial-flow fans with impeller blades turning on the move.
6 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| AXIAL FAN IMPELLER | 2011 |
|
RU2466301C1 |
| AXIAL FAN IMPELLER WITH BLADE ROTARY MECHANISM | 2006 |
|
RU2343321C2 |
| IMPELLER OF AXIAL-FLOW FAN | 1997 |
|
RU2135838C1 |
| IMPELLER OF AXIAL FAN WITH BLADE TURNING MECHANISM | 2010 |
|
RU2439379C1 |
| AXIAL FAN IMPELLER | 2008 |
|
RU2381387C1 |
| PROPELLER OF REVERSIBLE AXIAL FAN | 2009 |
|
RU2427727C2 |
| AXIAL-FLOW FAN IMPELLER VANE ATTACHMENT ASSEMBLY | 2007 |
|
RU2417332C2 |
| AXIAL FAN WORKING WHEEL | 0 |
|
SU1749552A1 |
| VERTICAL AXIAL-FLOW FAN | 1999 |
|
RU2168072C2 |
| PUMPING UNIT | 2000 |
|
RU2191928C2 |
