Axial fan arrangement
US4566852A · kind A · utility
44Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1983 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Mar 14, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/545
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An axial fan arrangement is provided, especially for the radiator of a water cooled internal combustion engine for commercial vehicles. In order to reduce noise levels without impairing fan efficiency, an air guide structure is provided which widens in the flow direction starting from adjacent the air inlet edges of the fan blades. Embodiments are included which have part of the air guide structure carried by the fan blades and other embodiments have fixed air guide structure. The contour of the air guide structure conforms to the facing contour of the fan blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.