Acoustic volume in hot-end of exhaust systems
AssigneeFaurecia Emissions Control Technologies, USA, LLC
InventorsJean Lagier, James Egan, Djafar Larbi, Marion Gonzalez, Frederic Blanco-Sotelo
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Abstract
A vehicle exhaust system includes a component housing defining an internal cavity, a first exhaust gas treatment element positioned within the internal cavity, a second exhaust gas treatment element positioned within the internal cavity and axially spaced from the first exhaust gas treatment element by a gap, and a resonator volume in communication with the internal cavity.
Claims20
A vehicle exhaust system comprising:
- a component housing defining an internal cavity;
- a first exhaust gas treatment element positioned within the internal cavity;
- a second exhaust gas treatment element positioned within the internal cavity and axially spaced from the first exhaust gas treatment element by a gap;
- and
- a resonator volume in communication with the internal cavity.
The vehicle exhaust system according to claim 10 wherein the resonator housing is located externally of the component housing.
A vehicle exhaust system comprising:
- a first housing defining an internal cavity;
- at least one exhaust gas treatment element positioned within the internal cavity;
- a resonator volume spaced radially outwardly of the at least one exhaust gas treatment element;
- and
- a resonator connection to provide communication between the resonator volume and the internal cavity.
A vehicle exhaust system comprising:
- a component housing defining an internal cavity;
- an inlet coupled to an upstream end of the component housing;
- an outlet coupled to a downstream end of the component housing;
- a first exhaust gas treatment element positioned within the internal cavity;
- a second exhaust gas treatment element positioned within the internal cavity and separated from the first exhaust gas treatment element by a gap;
- a resonator volume in communication with the internal cavity;
- and
- a plurality of resonator connections in communication with the resonator volume.
Dependencies are inferred from the claim text.