Oil sump for vertically shafted engines

A combination oil sump and engine mount housing having an upper face for sealing against a block of a vertically shafted engine, the housing defining

• an internal volume therein for containing a quantity of oil received from the engine through an oil drain opening in the upper face of the housing;
• an exhaust inlet for receiving a flow of exhaust from the engine and directing the flow of exhaust toward an exhaust outlet along an exhaust passage defined within the housing;
• a water inlet for receiving a flow of cooling water into a water passage defined within the housing about the exhaust passage for cooling the flow of exhaust;
• and
• holes spaced apart across the housing and adapted to receive fasteners for resiliently securing the engine within a boat hull at multiple mounting points.

A marine generator assembly comprising

• a combustion engine having a vertically disposed crankshaft;
• an electric generator with a rotor connected to the crankshaft for rotation;
• and
• an oil sump secured to a lower end of the engine and defining
• an internal volume therein for containing a quantity of oil received from the engine through an oil drain opening in an upper face of the sump;
• an exhaust inlet for receiving a flow of exhaust from the engine and directing the flow of exhaust toward an exhaust outlet along an exhaust passage defined within the sump;
• a water inlet for receiving a flow of cooling water into a water passage defined within the sump about the exhaust passage for cooling the flow of exhaust;
• and
• holes spaced apart across the sump and adapted to receive fasteners for resiliently securing the engine within a boat hull at multiple mounting points.

A method of producing electrical power on-board a boat, the method comprising

• attaching an oil sump to a lower face of a block of an outboard motor engine, the oil sump comprising a housing defining
• an internal volume therein for containing a quantity of oil received from the engine through an oil drain opening in the upper face of the housing;
• an exhaust inlet for receiving a flow of exhaust from the engine and directing the flow of exhaust toward an exhaust outlet along an exhaust passage defined within the housing;
• a water inlet for receiving a flow of cooling water into a water passage defined within the housing about the exhaust passage for cooling the flow of exhaust;
• and
• holes spaced apart across the housing and adapted to receive fasteners for resiliently securing the engine within a boat hull at multiple mounting points;
• attaching a crankshaft of the engine to an electrical generator;
• mounting the engine and generator on-board a boat;
• attaching the water inlet to a source of cooling water;
• and
• running the engine to turn the generator to produce electrical power.