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:
Jan. 13, 2015
Filed:
Feb. 24, 2011
Katrin Bohl, Künzelsau, DE;
Marc Schneider, Dörzbach, DE;
Jürgen Schöne, Bad Mergentheim, DE;
EMB-PAPST Mulfingen GmbH & Co. KG, Mulfingen, DE;
Abstract
A fan wheel () is designed as a radial or diagonal fan, comprising a top plate () with an inlet port (), a base plate () and a plurality of fan blades () distributed around the inlet port () and around an axis of rotation (Z). Blade ducts extend () respectively between the adjacent fan blades (). The blade ducts lead radially or diagonally outward from the area of the inlet port () and form blow-out ports in the outer region. The blade ducts () are designed, with respect to their effective flow cross-section, as large enough that during operation, a turbulent flow with a Reynolds number markedly greater than 2300 is achieved. The top plate () or the base plate () or both feature a rotationally asymmetrical geometry with a continuous profile, at least in angular sections encompassing the fan blades ().