Injecting assembly having improved fixing performance

The invention relates to an injection system for injecting fuel, comprising an injector (2) and a fuel tank (3) which is arranged on the injector (2) and forms a fuel volume on the injector (2), wherein a locking connection structure (4) is arranged between the injector (2) and the fuel tank (3),and can prevent a relative movement in the axial direction (X-X) of the injector (2) with respect to the fuel tank (3); a torsion fixation structure is arranged between the injector (2) and the fuel tank (3) and is used for preventing a relative rotation between the injector (2) and the fuel tank (3). 本发明涉及种用于喷射燃料的喷射组件，包括：喷射器(2)和燃料杯(3)，该燃料杯布置在喷射器(2)上，并且在喷射器(2)上构成燃料容积，其中在喷射器(2)与燃料杯(3)之间设置卡锁连接结构(4)；其中卡锁连接结构(4)防止喷射器(2)相对于燃料杯(3)在轴向方向(X-X)上的相对运动，并且其中，在喷射器(2)与燃料杯(3)之间还设置了扭转固定结构(5)，用于防止在喷射器(2)与燃料杯(3)之间的相对扭转。