A marine outboard motor (2) for a marine vessel. The marine outboard motor includes: a housing (6) comprising a chamber (52, 53) and at least one inlet (45, 47) arranged to be submerged, in use, into a body of water in which the marine outboard motor is operated, in order to draw water into the chamber; an engine assembly comprising an internal combustion engine(100); a drive shaft (27) positioned in the housing, wherein the drive shaft is coupled to the internal combustion engine to drive a propulsion arrangement(8); a cooling system for cooling the internal combustion engine, the cooling system configured convey drawn water along a coolant flow path (43) through the housing to deliver the drawn water to the internal combustion engine; and a sleeve (59) by which the drive shaft is sealed from drawn water within the housing, the sleeve having first and second ends, wherein at least a part of the drive shaft is encased within the sleeve.
A marine outboard motor with drive shaft and cooling system
2021-09-02
Patent
Electronic Resource
English
MARINE OUTBOARD MOTOR WITH DRIVE SHAFT AND COOLING SYSTEM
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