Multi-outlet I.C. engine fuel injector

摘要

A nozzle body (12) has a nozzle needle (10), which extends as far as a blind recess (16) and is urged against a seat (13) by spring force. One outlet (14) extends from the region of the seat (13) and has a larger diameter than a further outlet (15) extending from the recess (16). The outlets (14, 15) provide for an increasing proportion of the fuel flow through the one outlet (14) with increasing needle lift.