| 摘要 |
PURPOSE: To provide a new improved fuel injection valve arrangement for dual fuel engines operated using two types of fuel, that overcome faults of traditional valve arrangements. CONSTITUTION: A valve housing includes a nozzle orifice 5 opening into a combustion chamber, respectively controllable valve arrangement for gaseous fuel and valve arrangement for pre-injection fuel. The valve arrangement for gaseous fuel includes an axially movable cylindrical hollow valve member 3 that has another valve arrangements 7, 8 for pre-injection fuel in its inner side, and its mantle surface is sealed to the valve housing 2. Furthermore, sealing surfaces 10a, 10b and 11a, 11b are respectively arranged in the valve arrangement 3 and the housing 2 to control in co-operation the supply of the gaseous fuel from inside of the valve member 3 into the nozzle orifice 5. |
