The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2004
Filed:
Dec. 21, 2001
Applicant:
Inventors:
Uwe Blass, Moeglingen, DE;
Christoph Kurdzel, Adelschlag, DE;
Assignee:
Behr GmbH & Co., Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 2/938 ;
U.S. Cl.
CPC ...
F04D 2/938 ;
Abstract
An axial-flow fan ( ) is arranged on a viscous coupling ( ). Fin-like stabilizers ( ) are provided in the region of the blade roots, that is to say in the hub region, and these fin-like stabilizers ( ) segregate the hub flow and the blade flow. In addition, a radial blade element ( ) can be provided and are assigned in each case to these stabilizers and can be integrated with the surface of the stabilizer ( ) 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.