| 摘要 |
PURPOSE:To prevent drivability and emission performance from worsening while suppressing an electric load in an operating region except the operating region particularly necessary for promoting vaporization and atomization of injection fuel. CONSTITUTION:A tubular collision body 24 heated by electrification is provided by surrounding jets 13a, 13a of a fuel injection valve 13. An injection pressure changing means for changing an injection pressure from the fuel injection valve into the first/ second preset pressures is provided, to set a high injection pressure in an injection range A of colliding against an internal peripheral surface 24a of the collision body as the first preset pressure and a low injection pressure in a normal time range B of not colliding against the internal peripheral surface of the collision body by narrowing an injection range as the second preset pressure. A control means for controlling electrification in the collision body and a change of injection pressure is provided, and the control means is constituted such that the collision body is placed in an electrified condition at cold time to further change the injection pressure to the first preset pressure and on the other hand the collision body is placed in a non-electrified condition after ending warming up to further change the injection pressure to the second preset pressure. |
