Marine propulsion device exhaust system

Details Marine propulsion device exhaust system Marine propulsion device exhaust system

1986-09-22

1987-08-18

Peters, Jr., Joseph F.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

60311, B63H 2132

Patent

active

046874500

ABSTRACT:
A marine propulsion device comprising a water cooled internal combustion engine, a gimbal housing adapted to be mounted on a boat transom and including a front end, an exhaust opening in the front end, a first exhaust relief opening in the front end adjacent one side of the exhaust opening, a second relief opening in the front end adjacent the other side of the exhaust opening, an exhaust outlet, an exhaust conduit communicating between the exhaust opening and the exhaust outlet, a first exhaust relief passage communicating between the first exhaust relief opening and the atmosphere, and a second exhaust relief passage communicating between the second exhaust relief opening and the atmosphere, and an exhaust system communicating between the engine and the exhaust opening for conducting exhaust gases and coolant water away from the engine, and communicating between the engine and the first and second exhaust relief openings for conducting exhaust gases away from the engine.

REFERENCES:
patent: 1816371 (1931-07-01), Hefti
patent: 3310022 (1967-03-01), Kollman
patent: 3750614 (1973-08-01), Giacosa
patent: 3759041 (1973-09-01), North et al.
patent: 4019456 (1977-04-01), Harbert
patent: 4354849 (1982-10-01), Sanmi et al.
patent: 4504238 (1985-03-01), Neisen

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