Patent · US Active

Exhaust system of an internal combustion engine

US8302393B2 · kind B2 · utility

0Cited by

11References

19Claims

0Family size

Assignee

Magneti Marelli S.p.A. · IT

Inventors

Massimo Ambrosino · Cascine Campassa di Sopra, IT
Luigi Lubrano · Novara, IT
Pompilio Giorgi · Torino, IT
Matteo Sbarile · Rivoli, IT
Francesco Sciacca · Torino, IT

Key dates

Filing date	Dec 15, 2009
Grant date	Nov 6, 2012
Priority date	—
Expiry date	Feb 18, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2470/14
WIPO fieldEnvironmental technology
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.