| 摘要 |
The invention relates to a fuel injector (10), comprising a nozzle body (15), which is axially clamped at least indirectly against a retaining body (30) by means of a nozzle-clamping nut (35; 35a). The sleeve-shaped nozzle-clamping nut (35; 35a) has a retaining segment (36), which protrudes radially toward a longitudinal axis (16) and lies axially against the nozzle body (15), an intermediate segment (38) of the nozzle-clamping nut (35; 35a), which radially surrounds the nozzle body (15), wherein a radial guidance play (48) is formed between the intermediate segment (38) and the nozzle body (15) in the region of a guidance segment (45), and a threaded segment (39), which is arranged on the side of the intermediate segment (38) opposite the retaining segment (36) and interacts with a mating thread (42) on the retaining body (30). According to the invention, the guidance segment (45) between the nozzle-clamping nut (35; 35a) and the nozzle body (15) is formed only on a partial region of the axial length of the intermediate segment (38) on the side facing the threaded segment (39), and a radial gap (47; 47a) greater than the radial guidance play (48) in the guidance segment (45) is formed between the nozzle body (15) and the nozzle-clamping nut (35; 35a). |
