To reduce the fuel consumption.

This internal combustion engine is provided with, at least, a piston 10, a cylinder, a combustion chamber 4 partitioned by the cylinder head, an intake pipe 7 combined with an intake valve 9, an exhaust pipe 1 cooperated with an exhaust valve 6, and a first ignition means 3 arranged near the intake valve 9. The internal combustion engine also has a fuel injection element 2 arranged near the first ignition means 3, and the intake pipe 7, the fuel injection element 2, and the first ignition means 3 are arranged in a half body of the same cylinder in the front side of a vehicle.