Exhaust treatment apparatus and method
AssigneeJaguar Land Rover Limited
InventorMichael Davies
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Abstract
The present invention relates to an exhaust treatment apparatus for an internal combustion engine. The apparatus includes a catalyst chamber containing a catalyst. One or more exhaust gas inlets are provided for supplying exhaust gases from the internal combustion engine to the catalyst chamber. An exhaust gas outlet for supplying exhaust gases from the catalyst chamber to a turbocharger. An injection nozzle is provided for introducing a reductant into the exhaust gases between the catalyst and the turbocharger. The reductant and the exhaust gases can undergo mixing as they pass through the turbocharger. The catalyst can have a three-dimensional open structure to facilitate the flow of exhaust gases. The invention also relates to a method of treating exhaust gases from an internal combustion engine.
Claims13
An exhaust treatment apparatus for an internal combustion engine, the apparatus comprising:
- a manifold chamber defined by an exhaust manifold;
- a catalyst contained in the exhaust manifold and carried on a substrate;
- a plurality of exhaust gas inlets for supplying exhaust gases from the internal combustion engine to the manifold chamber;
- an exhaust gas outlet for supplying exhaust gases from the manifold chamber to a turbocharger;
- and
- a plurality of recesses in the substrate, each of said recesses comprising an aperture extending partway through the substrate coincident with one of said exhaust gas inlets;
- wherein the substrate has a three-dimensional open structure for facilitating a flow of exhaust gases from the exhaust gas inlets to the exhaust gas outlet.
Dependencies are inferred from the claim text.