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:
Dec. 09, 2014
Filed:
Sep. 09, 2013
Dr. Ing H.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Technofirst, Aubagne Cedex, FR;
Juergen Schorn, Rutesheim, DE;
Christian Emile Marie Carme, Marseilles, FR;
Daniel Joseph Maguire, Auburn, IN (US);
Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Technofirst, Aubagne Cedex, FR;
Abstract
A device for manipulating the exhaust outlet noise of a motor vehicle, having an exhaust flap which can be positioned in an exhaust pipe and which can be displaced in oscillatory fashion about an exhaust flap basic position in a defined angle range about the exhaust flap basic position in order to manipulate the exhaust outlet noise, wherein the exhaust flap basic position can be actively adjusted as a function of an engine rotational speed and/or an engine load, and wherein the angle range can be actively adjusted as a function of a frequency to be eliminated or attenuated, or a frequency to be generated or enhanced, of the exhaust outlet noise.