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US 2021/0262374 A1Published application
Acoustic volume and insulation in hot-end of exhaust systems
AssigneeFaurecia Emissions Control Technologies, USA, LLC
InventorsThorsten Keesser, James Egan, Catherine Guyard, Jean-Paul Brunel
Life of this patent
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Abstract
A vehicle exhaust system includes a component housing defining an internal cavity and at least one exhaust gas treatment element positioned within the internal cavity. A resonator volume is connected in parallel with the internal cavity via at least one resonator element and insulating material is located within the resonator volume.
Claims20
A vehicle exhaust system comprising:
- a component housing defining an internal cavity;
- at least one exhaust gas treatment element positioned within the internal cavity;
- a resonator volume connected in parallel with the internal cavity via at least one resonator element;
- and
- insulating material located within the resonator volume.
2 more elements
A vehicle exhaust system comprising:
- at least one exhaust gas treatment element;
- a component housing defining an internal cavity, wherein the component housing comprises a center housing portion that encloses the at least one exhaust gas treatment element, an inlet cone positioned at an upstream end of the center housing portion, and an outlet cone positioned at a downstream end of the center housing portion, and wherein the component housing is located in a hot end of the vehicle exhaust system and is immediately downstream of an engine or turbocharger;
- a resonator volume connected in parallel with the internal cavity via at least one resonator element, wherein there is no net flow out of the resonator volume;
- and
- insulating material located within the resonator volume.
2 more elements
Dependencies are inferred from the claim text.