Patent ID: 6638123
Filing Date: 2003-10-28
Classification: B63B,B63H,F01M,F02B

Abstract:
A small watercraft comprising a hull defining an engine compartment, an internal combustion engine disposed in the engine compartment, a lubrication system arranged to supply lubrication oil to the engine and comprising a reservoir at least partially defining a space for holding lubrication oil therein, wherein a separate member defines a first cover member connected to an outer surface of the reservoir to define a first cooling jacket portion therebetween, and wherein another separate member defines a second cover member connected to an outer surface of the reservoir opposite the first cover member, the second cover member and the reservoir defining a second cooling jacket portion therebetween, a first transverse passage and a second transverse passage connecting the first and second cooling jacket portions, the first and second cooling jacket portions and the first and second transverse passages at least partially defining a cooling jacket of the reservoir, an inlet and an outlet in fluid communication with the cooling jacket, a cooling system arranged to supply cooling fluid to the inlet and receive cooling fluid from the outlet, the cooling jacket including a plurality of horizontal passages and being configured to guide a flow of cooling fluid between the plurality of horizontal passages.