INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING FUEL INJECTION OF SAME

摘要

The invention refers to an internal combustion engine comprising a fuel injection system and an air supplying system for supplying air to each combusion chamber of the engine. The fuel injection system comprises a main fuel injection unit (31, 107) and a sub-fuel injection unit (61,114) wherein the main fuel injection unit (31,107)) is activated under all operating conditions of the engine whereas the sub-fuel injection unit (61,114) is activated under specific operating conditions of the engine only.