Exhaust system for outboard motors

Details Exhaust system for outboard motors Exhaust system for outboard motors

1993-11-12

1999-06-15

Basinger, Sherman

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

60302, F01N 328

Patent

active

059116080

ABSTRACT:
A number of embodiments of an exhaust system for outboard motors that includes a trap portion in a conduit which conveys the exhaust gases from an expansion chamber formed in the drive shaft housing to an underwater exhaust gas discharge. The trap portion has a horizontal section that is disposed above the water level, and various orientations are depicted. In addition, a catalyst is also provided, and the catalyst is protected from water also by the construction.

REFERENCES:
patent: 2890674 (1959-06-01), Rose
patent: 3692006 (1972-09-01), Miller et al.
patent: 4735046 (1988-04-01), Iwai
patent: 4843815 (1989-07-01), Smojver
patent: 5174112 (1992-12-01), Sougawa et al.
patent: 5346417 (1994-09-01), Isogawa
Summary of Japanese 2-147101 dated Jun. 5, 1990.

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