Exhaust system including an exhaust manifold having an integrated mixer plate
AssigneeFord Global Technologies, LLC
InventorsCornelius Langston Henderson, IV, Ray Host, Michael Collareno, George I. Tapos, Christopher Oberski
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Abstract
An exhaust system for an engine is provided herein. The exhaust system includes an emission control device and an exhaust manifold having a plurality of runners merging at a confluence section positioned upstream of the emission control device. The exhaust system further includes a mixer plate positioned in the confluence section, the mixer plate including a central opening and a plurality of louvered vents positioned axially around the central opening, the louvered vents having angled openings facing a common rotational direction.
Claims20
An exhaust system for an engine, comprising:
- a 3-way catalyst;
- an exhaust manifold having a plurality of runners merging at a confluence section positioned upstream of the 3-way catalyst;
- and
- a mixer plate positioned in the confluence section, the mixer plate including a central opening and a plurality of louvered vents positioned axially around the central opening, the louvered vents having angled openings facing a common rotational direction.
A method for operating an exhaust system coupled to an engine, comprising:
- flowing exhaust gas from a plurality of exhaust runners in an exhaust manifold to a confluence section in the exhaust manifold where the plurality of exhaust runners merge;
- flowing exhaust gas through a mixer plate spanning the confluence section and including a central opening and louvered vents positioned axially around the central opening, the louvered vents having angled openings facing a common rotational direction, an exhaust gas sensor extending through the central openings;
- and
- flowing exhaust gas from the mixer plate to a 3-way catalyst directly downstream of the mixer plate.
(canceled)
An exhaust system for an engine, comprising:
- a 3-way catalyst;
- an exhaust manifold having a plurality of runners merging at a confluence section positioned directly upstream of the 3-way catalyst;
- and
- a mixer plate extending across the confluence section, the mixer plate including a central opening and louvered vents positioned axially around the central opening, the louvered vents having angled openings facing a common rotational direction.
Dependencies are inferred from the claim text.