Radial fan wheel, fan unit and radial fan arrangement
US9157452B2 · kind B2 · utility
3Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2004 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/288
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A radial fan wheel comprising vanes (2) which are inclined against the rotational direction (8) (radial impeller inclined towards the rear), the outer edge regions (14, 7) of the top and bottom disks (3,4) projecting past the effective diameter (DAs) of the vanes. The diffusion space thus established between the bottom and top disks (1,3) and the effective and outer diameter (Das, DN) of the vanes enables the kinetic energy of the fluid to be effectively converted into static pressure). The cross-section of the diffusion space is thus embodied in such a way that it expands radially outwards in a rectangular or trapezoidal manner
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.