Patent ID: 11939898
Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 0:
1. An exhaust system for an internal combustion engine of a vehicle, the exhaust system comprising:
an exhaust duct;
an exhaust aftertreatment system;
at least one sensor arranged in the exhaust duct to determine an exhaust gas composition of the exhaust gas; and
a guide vane arranged upstream of the at least one sensor, the guide vane configured to increase a flow velocity of the exhaust gas in a local flow cross-section of the exhaust duct at a height of the at least one sensor,
wherein the guide vane has a first end and a second end, the second end being positioned closer to the at least one sensor than the first end and, with respect to a flow direction of the exhaust gas, the second end is positioned farther downstream than the first end,
wherein an upper surface of the guide vane extending between the first end and the second end along the flow direction of the exhaust gas and overflowed by the exhaust gas rises ramp-like in the flow direction, the rise of the upper surface being in a direction towards a center axis of the exhaust duct, such that a height of the guide vane at the second end is greater than a height of the guide vane at the first end, and
wherein the guide vane has a bottom surface that opposes the upper surface, the bottom surface of the guide vane being attached to an inner surface of the exhaust duct, and wherein the height of the guide vane at the first and second ends of the guide vane is a distance between the bottom surface and the upper surface at each of the first and second ends.