FIELD: ventilation.
SUBSTANCE: blade for a working wheel of a fan, in particular an axial fan, a diagonal fan, or a radial fan, has a wavy front edge and a wavy rear edge, while waves on the front edge have a greater wavelength than waves on the rear edge. The working wheel has corresponding blades. The axial fan/the diagonal fan, and the radial fan has the working wheel, which has corresponding blades.
EFFECT: obtainment of a blade for a working wheel of a fan.
14 cl, 17 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FAN WHEEL, FAN AND SYSTEM, HAVING AT LEAST ONE FAN | 2016 |
|
RU2740612C2 |
| FAN AND GUIDE APPARATUS FOR A FAN | 2019 |
|
RU2776734C1 |
| BODY OF A FAN AND FAN | 2019 |
|
RU2776824C1 |
| IMPELLER FOR FAN | 2011 |
|
RU2584633C2 |
| FAN IMPELLER | 2015 |
|
RU2718096C2 |
| CENTRIFUGAL FAN IMPELLER, FAN UNIT AND SYSTEM OF CENTRIFUGAL FAN | 2004 |
|
RU2321775C1 |
| FAN ROTOR BLADE AND FAN | 2011 |
|
RU2525026C1 |
| AXIAL FAN | 2011 |
|
RU2608800C2 |
| LOW-NOISE AXIAL FAN IMPELLER BLADE | 2021 |
|
RU2763630C1 |
| FAN IMPROVEMENTS | 2018 |
|
RU2756944C2 |
