Exhaust system for watercraft

Details Exhaust system for watercraft Exhaust system for watercraft

1998-06-26

2000-08-22

Avila, Stephen

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

B63H 2132

Patent

active

061063444

ABSTRACT:
An improved exhaust system for a marine engine utilizes a catalyst positioned within the exhaust system to maximize engine performance while minimizing the deterioration of catalyst. The exhaust system includes an exhaust manifold, an expansion chamber, a water trap and an exhaust pipe connecting the expansion chamber to the water trap. The exhaust pipe includes a catalyst chamber that houses the catalyst in such a way as to minimize the collection of water in the catalyst chamber as well as to inhibit a back flow of water to the catalyst chamber. The expansion chamber and the exhaust pipe are preferably fixed to the body of the engine to reduce vibration generated by the passage of the exhaust gases through the exhaust system.

REFERENCES:
patent: 5324217 (1994-06-01), Mineo
patent: 5366401 (1994-11-01), Nanami et al.
patent: 5632660 (1997-05-01), Nakase et al.

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