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:
Oct. 13, 2015
Filed:
Mar. 04, 2004
Applicant:
Omar Sadi, Hall-Hessential, DE;
Inventor:
Omar Sadi, Hall-Hessential, DE;
Assignee:
ZIEHL-ABEGG SE, Künzelsau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/30 (2006.01); F04D 29/44 (2006.01); F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 29/442 (2013.01); F04D 29/282 (2013.01);
Abstract
A radial fan wheel comprising vanes () which are inclined against the rotational direction () (radial impeller inclined towards the rear), the outer edge regions () of the top and bottom disks () projecting past the effective diameter (DAs) of the vanes. The diffusion space thus established between the bottom and top disks () and the effective and outer diameter (Das, DN) of the vanes enables the kinetic energy of the fluid to be effectively converted into static pressure). The cross-section of the diffusion space is thus embodied in such a way that it expands radially outwards in a rectangular or trapezoidal manner