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:
May. 14, 2002
Filed:
May. 19, 2000
Hermann Stahl, Steinheim, DE;
Erwin Wolf, Weissach, DE;
Hermann Stahl GmbH, Grossbottwar, DE;
Abstract
The invention relates to a fan wheel for a turbo charger. The fan wheel ( ) is comprised of a base body with a central axis of rotation ( ) wherein the base body is assembled of two cover discs ( ) positioned approximately congruently opposite one another, between whose end faces ( ) facing one another fan blades ( ) are arranged. The fan blades ( ) are formed as monolithic parts on at least one of the cover discs ( ) and have an axial contact surface ( ) against which an oppositely positioned axial contact surface ( ) of the other cover disc ( ) rests. Fastening means are provided in the area of the contact surfaces ( ) for non-detachably connecting the cover discs ( ) to one another. In order to produce the fan wheel ( ) without balancing, the cover discs ( ) are embossed from a material that can be embossed and the fan blades ( ) are embossed axially out of the material of a cover disc ( ), wherein the edge ( ) between the plane of the cover disc ( ) and the sidewall ( ) of a fan blade ( ) positioned substantially at a right angle to the plane of the cover disc ( ) as well as the edge ( ) between the sidewall ( ) of the contact surface ( ) are rounded with a radius (R , R ) of approximately 0.5 to 2 mm.