Marine propulsion – Means for accomodating or moving engine fluids – Means for handling exhaust gas
Patent
1994-12-05
1996-07-02
Sotelo, Jesus D.
Marine propulsion
Means for accomodating or moving engine fluids
Means for handling exhaust gas
440 88, 60310, B63H 2132
Patent
active
055316204
ABSTRACT:
Two embodiments of exhaust systems for small watercraft that include cooling jackets circling a portion of the exhaust conduit. At least a portion of the water from the cooling jacket is mixed with the exhaust gases but at a point spaced substantially downstream of the cooling jacket so as to reduce the likelihood of water entering the engine through the exhaust system. In one embodiment, an additional cooling jacket is provided to which the coolant from the first cooling jacket is introduced and then discharged into the exhaust conduit. The second cooling jacket is disposed substantially downstream of the first cooling jacket.
REFERENCES:
patent: 3921398 (1975-11-01), Kashmerick
patent: 4831822 (1989-05-01), Yoshimura
Nakase Ryoichi
Ozawa Shigeyuki
Sanshin Industries Co., Ltd.
Sotelo Jesus D.
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