Coupling device

摘要

Coupling device (50) for hydraulically and mechanically coupling a fuel injector (20) to a fuel rail (14) of a combustion engine (22). The fuel injector (20) has a central longitudinal axis (L). The coupling device (50) comprises a fuel injector cup (30) being designed to be hydraulically coupled to the fuel rail (14) and to engage a fuel inlet portion (24) of the fuel injector (20), a first plate element (36) being fixedly coupled to the fuel injector cup (30), the first plate element (36) comprising a recess (40), and a second plate element (38) being fixedly coupled to the fuel injector (20) and being arranged in the recess (40) and being fixedly coupled to the first plate element (36) to retain the fuel injector (20) in the fuel injector cup (30) in direction of the central longitudinal axis (L). The fuel injector (20) comprises a groove (32). A snap ring (42) is arranged in the groove (32) of the fuel injector (20) and is designed to fixedly couple the second plate element (38) to the fuel injector (20).