Exhaust system for an outboard engine

Details Exhaust system for an outboard engine Exhaust system for an outboard engine

1980-04-10

1982-09-21

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Treated by washing, or having liquid contact structure

60312, 60314, 181251, 181260, 440 89, F01N 304, F02B 2704, B63H 2132

Patent

active

043500102

ABSTRACT:
An outboard engine has a casing, an internal combustion engine with a water cooling circuit and an exhaust pipe. The exhaust pipe discharges exhaust gases into an expansion chamber, and gases from the expansion chamber are discharged into the body of water in which the vessel propelled by the engine floats. The exhaust pipe projects into the expansion chamber and has pores (perforations) near its outlet end. Coolant water is discharged into the expansion chamber and mixes with the exhaust gases. Gas flow through the pores discourages reverse flow of water droplets through the exhaust pipe to the engine cylinders.

REFERENCES:
patent: 1606032 (1926-11-01), Kolstrand
patent: 3045423 (1962-07-01), Hulsebus
patent: 3310022 (1967-03-01), Kollman
patent: 3520270 (1970-07-01), Miller
patent: 3577952 (1971-05-01), Tado
patent: 3771315 (1973-11-01), Scott
patent: 4015429 (1977-04-01), Pichl
patent: 4303401 (1981-12-01), Sanmi

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