INJECTION NOZZLE FOR DUAL-FUEL ENGINE, DUAL-FUEL ENGINE, AND METHOD FOR OPERATING THE SAME

To provide an injection nozzle for a cylinder of a dual-fuel engine.SOLUTION: Via an injection nozzle 23, a first fuel, in a first operating mode, is introduced into a combustion chamber, and ignition fluid for a second fuel, in a second operating mode, is introduced into the combustion chamber. The injection nozzle 23 comprises an injection nozzle body 24 with injection orifices 25 and injection orifices 26, and an injection nozzle valve body 27. Each of the injection orifices 25 has a cross-section smaller than that of each of the injection orifices 26. The injection orifices 25 and 26, as viewed in an axial direction, that is, in a displacement direction of the injection nozzle valve body 27, have a predetermined distance; as viewed in a displacement direction X1 of the injection nozzle valve body 27 that closes or blocks the injection orifices 25 and 26, the injection orifices 25 are placed in front of the injection orifices 26; and as viewed in a displacement direction X2 of the injection nozzle valve body 27 that opens or releases the injection orifices 25 and 26, the injection orifices 25 are placed behind the injection orifices 26.SELECTED DRAWING: Figure 2 【課題】デュアル燃料エンジンのシリンダ用噴射ノズルを提供すること。【解決手段】噴射ノズル２３を介して、第１の動作モードでは第１の燃料を、第２の動作モードでは第２の燃料用点火流体を燃焼チャンバ内に導入する。噴射ノズル２３は、噴射オリフィス２５および噴射オリフィス２６を備えた噴射ノズル本体２４と、噴射ノズル弁体２７とを備え、噴射オリフィス２５は噴射オリフィス２６より小さい断面を有し、噴射オリフィス２５、２６は、軸方向で、したがって噴射ノズル弁体２７の変位方向で見ると所定の距離を有しており、噴射オリフィス２５、２６を閉口または閉塞させる噴射ノズル弁体２７の変位方向Ｘ１で見ると、噴射オリフィス２５は噴射オリフィス２６の前に置かれ、噴射オリフィス２５、２６を開口または開放させる噴射ノズル弁体２７の変位方向（Ｘ２）で見ると、噴射オリフィス２５は噴射オリフィス２６の後ろに置かれている。【選択図】図２