Exhaust system for small boat

Details Exhaust system for small boat Exhaust system for small boat

1993-05-18

1994-06-28

Swinehart, Edwin L.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

440 88, 114270, 60310, F01N 304

Patent

active

053242173

ABSTRACT:
An exhaust system for a small watercraft that includes a water trap device for precluding water entering the exhaust system if the watercraft becomes inverted from entering the engine through the exhaust system. Coolant from the engine is delivered to a cooling jacket that encircles the entire exhaust system and is introduced into the exhaust gases downstream of the water trap so that in the event of inversion and righting the engine coolant will also not enter the exhaust system. This also provides protection for catalyzers in the exhaust system.

REFERENCES:
patent: 4811560 (1989-03-01), Nakase et al.
patent: 5016439 (1991-05-01), Nitta
patent: 5096446 (1992-03-01), Tazaki et al.
patent: 5212949 (1993-05-01), Shiozawa

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