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:
Feb. 04, 2014
Filed:
Jan. 20, 2010
Matthias Stein, Korntal-Münchingen, DE;
Dirk Blümmel, Schwieberdingen, DE;
Matthias Stein, Korntal-Münchingen, DE;
Dirk Blümmel, Schwieberdingen, DE;
Abstract
The invention relates to a charging device (), more preferably an exhaust gas turbocharger for a motor vehicle, which turbine geometry comprises guide blades () rotatably mounted in a blade bearing ring (), wherein the blade bearing ring () with a side is directly exposed to a hot gas flow () while the side of the blade bearing ring () facing away from this is only indirectly exposed to the hot gas flow (). It is substantial to the invention that the blade bearing ring () on its side directly exposed to the hot gas flow () is produced of a different material than on its side only indirectly exposed to the hot gas flow () wherein the two materials with regard to their heat expansion coefficients are selected in such a manner that the blade bearing ring () at preferentially all occurring operating temperatures expands evenly without warping.