Injection nozzle for internal combustion engine of motor vehicle, has preloading piston loaded with preloading force in preloading side, where preloading force actuates preloading piston against bypass plunger

摘要

The nozzle (1) has a bypass plunger (25) supported in a coupling piston (12) that has an evasion surface hydraulically coupled with a coupling surface (21), and a storage surface (27). The storage surface limits a storage area formed in the coupling piston. A preloading piston (29) supported in the coupling piston extends into a contact side (42) in the storage area and lies against the storage surface. The preloading piston is loaded with a preloading force (30) in a preloading side (43), where the preloading force actuates the preloading piston against the bypass plunger.