Marine engine exhaust muffler assembly

Details Marine engine exhaust muffler assembly Marine engine exhaust muffler assembly

1987-05-29

1988-11-01

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Having retainer or flow director for exhaust gas condensate

55276, 55509, 60310, 440 89, F01N 302

Patent

active

047810211

ABSTRACT:
A marine engine exhaust muffler assembly (8) includes inlet and outlet members (10, 11), the axes (13, 14) of which are offset from each other. A muffler housing (12) is disposed between the inlet and outlet members and forms a chamber (15) having disposed therein an annular multi-layered cartridge (23), and with the layers having a multiplicity of perforations (27) 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 (31) is nested within the lower portion of the cartridge to permit accumulation of the spent engine cooling water within the cartridge to aid in noise reduction at certain engine speeds. The blocking plate is provided with a relief opening means (33) for assisting in water drainage upon engine shutoff.

REFERENCES:
patent: 1821688 (1931-09-01), Bourne
patent: 3449086 (1969-06-01), Innes
patent: 3712031 (1973-01-01), Santa Cruz

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