Axial fan
US4514140A · kind A · utility
11Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Nov 9, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/545
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An axial fan, preferably for the cooling systems of water-cooled internal combustion engines, comprises an impeller and an air duct housing provided with a fan guard which is separated by an annular gap from the tips of the impeller blades and is centered on the impeller axis by a support comprising radial arms attached to the fan guard. For noise reduction, the radial arms are supported on the hub of the impeller, on the side facing the fan shaft, by means of a roller bearing held by a mounting plate, and the mounting plate is made independent of the impeller bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.