Profiled annular hoop for a fan helix and its application to vehicle motorized fans
US5249927A · kind A · utility
7Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/914
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The profiled annular hoop for a fan helix blade tip exhibits a curved inlet collar whose convexity is directed towards the axis (100), and is characterized in that this collar (11) has a given axial length (l) and a meridian section (110) shaped approximately as a quarter ellipse whose eccentricity is of the order of 1.5 and whose major half-axis (a) lies between approximately one third and one half of this given axial length (l). Application to cooling motorized fans of vehicle radiators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.