Patent ID: 6183323
Filing Date: 2001-02-06
Classification: F01P,F02B,F02F

Abstract:
An outboard marine drive having an internal combustion engine incorporated with a vertically oriented crankshaft and a cooling fan attached to an upper end of said crankshaft, comprising:an under case attached to a lower end of said engine, said under case being provided with a substantially cylindrical upright wall located inside an outer periphery of said under case so as to surround a lower part of said engine;an engine cover which is detachably attached to said under case at an outer peripheral part of said engine cover and said under case so as to jointly cover said engine and define a first chamber, said engine cover being provided with an air inlet to introduce cooling air into said first chamber; anda fan cover which covers said engine jointly with said under case and defines a second chamber inside said first chamber, said fan cover being provided with an air inlet opposite to said cooling fan, said under case being provided with an air outlet for allowing cooling air to pass out of said second chamber;wherein a lower peripheral edge of said fan cover abuts an opposing upper peripheral edge of said cylindrical upright wall of said under case.