Patent ID: 9644514
Date: 2017-05-09
CPC Classifications: B01D,F01N,Y02T

Claim:
1. An exhaust system for a marine propulsion device having an internal combustion engine, the exhaust system comprising: a catalyst housing having a housing inlet end that receives an exhaust gas flow from the internal combustion engine and an opposite, housing outlet end that discharges the exhaust gas flow; a catalyst disposed in the catalyst housing; an outlet collector that receives the exhaust gas flow from the catalyst housing, wherein the outlet collector comprises a collector inlet end that is engaged with the housing outlet end such that one of the collector inlet end and housing outlet end overlaps with the other of the collector inlet end and housing outlet end at a joint; and a seal disposed at the joint between the collector inlet end and the housing outlet end; wherein the joint is devoid of a cooling water jacket.