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. 06, 2012
Filed:
Dec. 15, 2009
Applicants:
Massimo Ambrosino, Ivrea, IT;
Luigi Lubrano, Novara, IT;
Pompilio Giorgi, Turin, IT;
Matteo Sbarile, Cascine Vica Rivoli, IT;
Francesco Sciacca, Turin, IT;
Inventors:
Massimo Ambrosino, Ivrea, IT;
Luigi Lubrano, Novara, IT;
Pompilio Giorgi, Turin, IT;
Matteo Sbarile, Cascine Vica Rivoli, IT;
Francesco Sciacca, Turin, IT;
Assignee:
Magneti Marelli S.p.A., Corbetta, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An exhaust system of an internal combustion engine and provided with: at least one first high acoustic attenuation path having a first inlet opening; at least one second low acoustic attenuation path having a second inlet opening; and at least one control valve, which is arranged at the second inlet opening of the second path to control the flow of the exhaust gases along the second path.