具有特定注射配置的注射器。 第一闭合弹簧（28）经由中心压力轴线（34）恒定地作用于阀针（18），并且在执行预备行程（hv）之后，第二弹簧（ 40）通过压力元件（46）起作用。 这通过喷射器本体（10）上的中间套筒（48）在预行程（hv）期间被支撑。 预行程（hv）由阀针（18）和中间套筒（48）上的肩部（60,62）限制。 另一方面，总冲程由中间套筒（48）和中间盘（12）上的肩部（64,66）限制。 这样，通过机加工阀针（18）可以非常精确地将预行程（hv）调节到选定值，并且在安装注射器时不会改变。

Injector with a specific injection configuration. A first closing spring (28) constantly acts on the needle (18) valve via a central axis of pressure (34), and after execution of a preliminary stroke (hv), a second spring ( 40) for closing acts by means of a pressure element (46). It is supported during a preliminary stroke (hv) by means of an intermediate sleeve (48) on the body (10) of injector. The preliminary stroke (hv) is limited by shoulders (60, 62) on the valve needle (18) and the intermediate sleeve (48). By cons, the total stroke is limited by shoulders (64, 66) on the intermediate sleeve (48) and the intermediate disc (12). In this manner, the preliminary stroke (hv) can be adjusted very accurately to a selected value by machining the needle (18) valve and does not change during mounting of the injector.