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. 28, 2014
Filed:
Jul. 23, 2010
Alexander Buck, Munich, DE;
Stefan Mandlmeier, Oberschleissheim, DE;
Alexander Buck, Munich, DE;
Stefan Mandlmeier, Oberschleissheim, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A brake disc is provided having ribs arranged between two friction rings, extending radially with side walls standing essentially perpendicular to the friction rings to bound air cooling ducts. At least one of the side walls of one, two, three, or five ribs is inclined with respect to the perpendicular ribs to avoid squealing noise. At least one of the ribs having at least one inclined side wall has a thickness measured in the direction perpendicular to the side wall which differs from the thickness of the perpendicular ribs. When two, three, or five ribs having inclined walls are present, the angles enclosed between these ribs preferably are not all the same. Any imbalance resulting from this non-uniform distribution of ribs having an inclined side wall is essentially eliminated by adding material on selected perpendicular ribs.