PISTON INTERNAL COMBUSTION ENGINE

摘要

A piston-internal combustion engine is provided to improve availability of the piston-internal combustion engine through a simple and space-saving-type unit. A piston-internal combustion engine has a common rail(1) for supplying high-pressure fuel to an injection valve and the piston-internal combustion engine is suitable for heavy-oil operation. A heating element(3) is mounted in the common rail and the heating element is arranged in the middle of the common rail. Steam of high temperature is supplied to the heating element. The heating element comprises an electric heating unit and the common rail is surrounded in a state of including a gap.