Exhaust system for watercraft

Details Exhaust system for watercraft Exhaust system for watercraft

1994-11-18

1996-07-16

Swinehart, Edwin L.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

114270, B63H 2132

Patent

active

055361897

ABSTRACT:
A small personal watercraft having an exhaust system that is designed to provide adequate length and which has a downwardly inclined section that is disposed above the exhaust manifold for ensuring that water cannot enter the engine through the exhaust system. The engine is water cooled and the coolant that is circulated through the engine cooling jacket is discharged back to the body of water in which the watercraft is operating through the exhaust system. A direct coolant discharge having a relatively large effective area for limiting the amount of water entering the exhaust system. A tell-tale discharge is disposed in a lower portion of the hull to be visible by a rider but will not enter the passenger's area and will drain from the tell-tale when the engine is not running.

REFERENCES:
patent: 4625669 (1986-12-01), Nishida
patent: 5007870 (1991-04-01), Okuba et al.
patent: 5016439 (1991-05-01), Nitta
patent: 5096446 (1992-03-01), Tazaki et al.
patent: 5197909 (1993-03-01), Rossitto

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