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:
Sep. 14, 2010
Filed:
Jul. 29, 2005
Roland Keber, Wörth a.d. Isar, DE;
Rudolf Tungl, Ergolding, DE;
Roland Keber, Wörth a.d. Isar, DE;
Rudolf Tungl, Ergolding, DE;
emb-papst Landshut GmbH, Landshut, DE;
Abstract
The invention relates to a radial fan impeller (), in particular for using in gas fans with a steep fan characteristic curve, with the following features: with a plurality of blades () distributed around the periphery; viewed in the radial direction, the blades () extend from an inner inlet region () to an outer discharge region (); the blades () extend axially, i.e. viewed in the direction of a rotation axis (), between an inlet side () and an axially opposite hub side (); on the inlet side (), the blades () are connected by means of their radial extension as far as the discharge region () to a covering disc () which has a central inflow opening () opening out into the inlet region (); on the hub side () the blades () are only connected with their radial inner end regions to a central hub (); the blades () and the covering disc () define an outer fan impeller diameter (D) which is at least ten times an axially measured flow discharge width (B) of the blades () provided in the discharge region ().