Patent ID: 6305999
Filing Date: 2001-10-23
Classification: B63H,F01P,F02B

Abstract:
An outboard motor comprising:an engine holder;an engine which is disposed above the engine holder in a state wherein the outboard motor is mountable to a hull and in which a crankshaft is extendable substantially perpendicularly;an oil pan disposed below the engine holder;a drive shaft housing disposed below the oil pan;an exhaust passage formed in the engine, the engine holder and the oil pan for discharging an exhaust gas from the engine in the drive shaft housing;a cooling water passage and a return-water passage disposed in a vicinity of the exhaust passage; andfixing means disposed in the engine holder for fixing the oil pan to the engine holder,wherein said oil pan comprises vertical wall sections and outer wall sections, said outer wall sections being disposed outside the vertical wall sections, by which said exhaust passage, said cooling water passage and said return-water passage are formed, a juncture portion is formed between the engine holder and the oil pan, and said fixing means is provided for said vertical wall sections.