Marine Exhaust System With Catalyst

摘要

A marine engine exhaust system is provided that utilizes a single catalyst housing through which exhaust gases from multiple heads of an exhaust system flow. A first conduit directs a first exhaust gas from a first engine head or exhaust manifold to the catalyst, and a second conduit directs a second exhaust gas from a second engine head or exhaust manifold to the catalyst. The first and second conduits may be separate or may merge prior to the catalyst. The catalyst includes a housing and at least one substrate to convert the first and second exhaust gases into processed exhaust gas. A third conduit directs the processed exhaust gas away from the catalyst. At least one pre-sensor may be located upstream of the catalyst housing, and at least one post-sensor may be located downstream of the catalyst housing.

主权项

1. A marine engine exhaust system, comprising:
a first conduit in fluid communication with a first exhaust gas exiting from a first engine head; a second conduit in fluid communication with a second exhaust gas exiting from a second engine head; a catalyst in fluid communication with both said first and second exhaust gases having a housing and at least one substrate positioned within said housing in contacting engagement with said first and second exhaust gases to convert said first and second exhaust gases into at least one processed exhaust gas; and a third conduit in fluid communication with said at least one processed exhaust gas exiting from said catalyst.