Outboard motor

1. An outboard motor comprising:

an engine;

a fan driven by the engine to discharge air surrounding the engine; and

a cowl housing the engine and the fan; wherein

the cowl includes:

a top cowl disposed above the engine and including an exhaust pathway for exhaust to flow from the fan; and

an exhaust port connected to the exhaust pathway and located on the top cowl; and

the exhaust port opens primarily in a forward direction of the outboard motor.

2. The outboard motor according to claim 1 , wherein the cowl further includes:

an intake port; and

an intake pathway connected to the intake port and the engine; wherein

the intake port is located below the exhaust port.

3. The outboard motor according to claim 2 , wherein the cowl further includes:

a bottom cowl disposed below the top cowl; and

the intake port is provided on a lateral surface of the top cowl.

4. The outboard motor according to claim 1 , wherein the exhaust pathway includes:

an exhaust compartment inside the exhaust port; and

a communication pathway communicating with the fan and the exhaust compartment; and

a cross-sectional area of the exhaust compartment in a direction perpendicular to a flow-through direction of the exhaust is larger than a cross-sectional area of the communication pathway in the direction perpendicular to the flow-through direction.

5. The outboard motor according to claim 4 , wherein an opening area of the exhaust port is smaller than the cross-sectional area of the exhaust compartment.

6. The outboard motor according to claim 4 , wherein the exhaust compartment includes a bottom surface slanting downward and forward.

7. The outboard motor according to claim 4 , wherein the exhaust compartment includes:

an inner lateral surface; and

an interior opening on the inner lateral surface, the interior opening connected to the communication pathway; and

a lower end of the interior opening is located above an upper end of the exhaust port.

8. The outboard motor according to claim 7 , wherein the exhaust compartment includes a buffer space located rearward of the interior opening.

9. The outboard motor according to claim 4 , wherein the fan is disposed below the exhaust compartment; and

the communication pathway extends rearward and upward from the fan and has a curved shape.

10. The outboard motor according to claim 4 , wherein the exhaust compartment and the communication pathway are located between a first louver and a second louver disposed on the first louver; and

a heat insulating space is located between an upper surface of the second louver and an inner surface of the top cowl.

11. The outboard motor according to claim 1 , wherein the cowl includes a plurality of ribs disposed in the exhaust port.

12. An outboard motor comprising:

an engine;

a fan driven by the engine to discharge air surrounding the engine; and

a cowl housing the engine and the fan; wherein

the cowl includes:

a top cowl disposed above the engine and including an exhaust pathway for exhaust to flow from the fan; and

an exhaust port connected to the exhaust pathway and located on the top cowl; and

the exhaust port is disposed forward of the exhaust pathway.