Patent · US Expired

Fan having axial blades

US6726454B2 · kind B2 · utility

12Cited by

4References

20Claims

0Family size

Assignee

Behr GmbH & Co. · DE

Inventors

Uwe Blass · Asperg, DE
Christoph Kurdzel · Adelschlag, DE

Key dates

Filing date	Dec 21, 2001
Grant date	Apr 27, 2004
Priority date	—
Expiry date	Jul 10, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/384
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An axial-flow fan (1) is arranged on a viscous coupling (4). Fin-like stabilizers (5) are provided in the region of the blade roots, that is to say in the hub region, and these fin-like stabilizers (5) segregate the hub flow and the blade flow. In addition, a radial blade element (6) can be provided and are assigned in each case to these stabilizers and can be integrated with the surface of the stabilizer (5) to form a common surface. These special flow-conducting elements can favorably influence the fan flow in its hub region in such a way as to improve the fan output.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.