Internal combustion engine

An internal combustion engine includes an injector that injects a fuel into an intake passage. A first injection means injects the fuel from the injector in an intake stoke. A second injection means injects the fuel from the injector in an exhaust stroke. A comparison means compares a pressure in the intake passage and a pressure in an exhaust passage. An injection controller controls an operation ratio of the first injection means and the second injection means, according to a rotation speed of the internal combustion engine, a load, and conditions of the pressures obtained by the comparison means.