Outboard motor and watercraft including the same

An outboard motor comprising:

• a V-shaped 4-cycle engine including a crankshaft extending in a vertical direction;
• a left bank extending in an obliquely rearward and leftward direction which includes a cylinder having a cylinder axis line extending in an obliquely rearward and leftward direction;
• and
• a right bank extending in an obliquely rearward and rightward direction which includes a cylinder having a cylinder axis line extending in an obliquely rearward and rightward direction;
• wherein
• the left bank and the right bank each include:
• a combustion chamber provided in the cylinder;
• a fuel injection device arranged to directly inject fuel into the combustion chamber;
• a first port arranged inward relative to the cylinder axis line in an outboard motor width direction and in communication with the combustion chamber;
• a second port arranged outward relative to the cylinder axis line in the outboard motor width direction and in communication with the combustion chamber;
• a first valve arranged to open or close the first port;
• a second valve arranged to open or close the second port;
• a first cam shaft extending in the vertical direction, arranged inward relative to the cylinder axis line in the outboard motor width direction, and rotating together with the crankshaft to drive the first valve;
• and
• a second cam shaft extending in the vertical direction, arranged outward relative to the cylinder axis line in the outboard motor width direction, and rotating together with the crankshaft to drive the second valve;
• and
• the outboard motor further comprises a fuel pump arranged inward relative to the cylinder axis line in the left bank in the outboard motor width direction so as to be driven by the first cam shaft in the left bank or arranged inward relative to the cylinder axis line in the right bank in the outboard motor width direction so as to be driven by the first cam shaft in the right bank to supply fuel to the fuel injection devices.

An outboard motor comprising:

• a V-shaped 4-cycle engine including a crankshaft extending in a vertical direction;
• a left bank extending in an obliquely rearward and leftward direction which includes a cylinder having a cylinder axis line extending in an obliquely rearward and leftward direction;
• and
• aright bank extending in an obliquely rearward and rightward direction which includes a cylinder having a cylinder axis line extending in an obliquely rearward and rightward direction;
• wherein
• the left bank and the right bank each include:
• a combustion chamber provided in the cylinder;
• a fuel injection device arranged to directly inject fuel into the combustion chamber;
• an intake port arranged inward relative to the cylinder axis line in an outboard motor width direction and in communication with the combustion chamber;
• and
• an exhaust port arranged outward relative to the cylinder axis line in the outboard motor width direction and in communication with the combustion chamber;
• the outboard motor further comprises:
• a left intake path including a left path connected to the intake port in the left bank and extending from the intake port in an obliquely rearward and rightward direction;
• a right intake path including a right path connected to the intake port in the right bank and extending from the intake port in an obliquely rearward and leftward direction;
• a surge tank arranged rearward relative to each of the combustion chambers and connected to the left intake path and the right intake path;
• and
• at least one fuel pump arranged rearward relative to each of the combustion chambers and to supply fuel to the fuel injection devices;
• and
• as seen in a plan view, the surge tank and the at least one fuel pump are located respectively to the left of, and to the right of, the engine center line passing a center of the crankshaft and extending rearward, or are respectively located to the right of, and to the left of, the engine center line.