Fuel injector, for an IC motor common rail fuel injection system, has a jet spring radially around the jet needle, supported on a step at the needle in a compact structure

摘要

The fuel injector, for a common rail fuel injection system at an internal combustion motor, has a jet spring (19) radially around the jet needle (8), and the jet needle has a reduced diameter within the spring. The jet needle has a step (26), as a support surface for the spring. The sleeve (28) has a biting edge in the surface against the injector housing (1).