Marine engine exhaust muffler assembly

Details Marine engine exhaust muffler assembly Marine engine exhaust muffler assembly

F - Mech Eng,Light,Heat,Weapons

01

N

115/12, 172/30

F01N 13/12 (2010.01) F01N 13/00 (2010.01) F01N 3/04 (2006.01)

Patent

CA 1300031

Abstract A marine engine exhaust muffler assembly includes inlet and outlet members, the axes of which are offset from each other. A muffler housing is disposed between the in- let and outlet members and forms a chamber having disposed therein an annular multi-layered cartridge, and with the layers having a multiplicity of perforations therein for passage of exhaust gases and spent engine cooling water therethrough. The water assists in keeping the muffler clean. An imperforate arcuate blocking plate is nested within the lower portion of the cartridge to permit accumu- lation of the spent engine cooling water within the car- tridge to aid in noise reduction at certain engine speeds. The blocking plate is provided with a relief opening means for assisting in water drainage upon engine shutoff.

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