Marine propulsion – Means for accomodating or moving engine fluids – Means for handling exhaust gas
Patent
1987-12-23
1989-08-29
Peters, Jr., Joseph F.
Marine propulsion
Means for accomodating or moving engine fluids
Means for handling exhaust gas
440 88, F01H 302
Patent
active
048612960
ABSTRACT:
Disclosed herein is a marine propulsion device comprising a stern drive unit including a gimbal housing adapted to be fixed to a boat transom, a gimbal ring connected to the gimbal housing for pivotal movement relative to the gimbal housing about a generally vertical axis, a propulsion unit connected to the gimbal ring for pivotal movement relative to the gimbal ring about a generally horizontal axis, an exhaust gas passage in the propulsion unit and including an outlet normally located under water and an inlet normally located above the water, a flexible exhaust gas bellows having a rearward end connected to the inlet of the exhaust gas passage in the propulsion unit and having a forward end, and an exhaust gas and coolant discharge conduit extending through the gimbal housing and comprising a forwardly located inlet passage adapted to receive combined exhaust gas and coolant discharge from an engine and including a rearwardly located lower transverse wall, an exhaust gas discharge passage located rearwardly of and communicating with the inlet passage at least in part above the transverse wall, the exhaust gas discharge passage having a rearward end connected to the forward end of the bellows, and a coolant discharge passage communicating with the inlet passage in forwardly adjacent relation to the transverse wall.
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patent: 4019456 (1977-04-01), Harbers
patent: 4354849 (1982-10-01), Sanni
patent: 4504238 (1985-03-01), Neisen
patent: 4687450 (1987-08-01), Bland
Bartz Clifford T.
Outboard Marine Corporation
Peters Jr. Joseph F.
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