Patent ID: 9174818
Filing Date: 2015-11-03
Classification: B63H,F01N,F02F,Y02T

Abstract:
1. A marine engine comprising: a cylinder block having first and second banks of cylinders that are disposed along a longitudinal axis and extend transversely with respect to each other in a V-shape so as to define a valley there between; a catalyst receptacle that is disposed at least partially in the valley and contains at least one catalyst that treats exhaust gas from the marine engine; and a conduit that conveys the exhaust gas from the marine engine to the catalyst receptacle, wherein the conduit receives the exhaust gas from the first and second banks of cylinders and conveys the exhaust gas to the catalyst receptacle, wherein the conduit reverses direction only once with respect to the longitudinal axis; wherein the conduit comprises a single 180-degree bend; wherein the 180-degree bend is located higher than first and second banks of cylinders with respect to the longitudinal axis and wherein the 180-degree bend conveys the exhaust gas from a vertically upward directional flow to a vertically downward directional flow with respect to the longitudinal axis.