Marine engine exhaust system with cooling arrangement

Details Marine engine exhaust system with cooling arrangement Marine engine exhaust system with cooling arrangement

2007-08-14

2009-12-08

Olson, Lars A (Department: 3617)

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

C440S08900C, C440S08900C

Reexamination Certificate

active

07628663

ABSTRACT:
A marine engine exhaust system is provided. The system includes a first and second manifold. A first conduit is in fluid communication with the first manifold so that a first gas is transferred into a first gas passageway of the first conduit. The first conduit has a first cooling fluid passageway. A second conduit is in fluid communication with the second manifold so that a second gas exiting the second manifold is transferred into a second gas passageway of the second conduit. The second conduit has a second cooling fluid passageway. Cooling fluid is transferred through the first cooling fluid passageway so as to have a direction of flow through the first conduit opposite to the direction of flow of the first gas through the first gas passageway of the first conduit.

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