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:
Nov. 07, 2006
Filed:
Aug. 25, 2003
Applicants:
Michael Choi, Garden City, MI (US);
Amir Keyvanmanesh, Leamington Spa, GB;
Inventors:
Michael Choi, Garden City, MI (US);
Amir Keyvanmanesh, Leamington Spa, GB;
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F01N 1/08 (2006.01); F02M 35/12 (2006.01); F01N 1/02 (2006.01); F02M 35/16 (2006.01); F02M 35/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A noise attenuation device for a vehicle exhaust system is provided. The device includes an exhaust pipe having a passageway for receiving exhaust gas pulses from an engine. The device further includes a plurality of vanes extending from an inner surface of the passageway and spaced apart from one another. The vanes are configured to reduce turbulence in the exhaust gas pulses flowing past the vanes to reduce noise at a downstream outlet of the exhaust pipe.