Exhaust pipe cooling system for watercraft

Details Exhaust pipe cooling system for watercraft Exhaust pipe cooling system for watercraft

1996-08-02

1998-08-04

Swinehart, Ed

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

440 88, B63H 2132

Patent

active

057885478

ABSTRACT:
An exhaust pipe cooling system is provided for a small watercraft, such as a personal watercraft, to regulate the temperature of a catalyzer of an associated exhaust system. The cooling system supplies fresh water to a water jacket which surrounds the catalyzer in a manner independent of an engine cooling system. A control valve also can regulate the flow rate of water through the cooling system to adjust the temperature of the catalyzer to fall within a desired range of operating temperatures.

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