FUEL INJECTOR NOZZLE FOR AN INTERNAL COMBUSTION ENGINE

摘要

A direct injection fuel injector (30) includes a nozzle tip (32, 60) having a plurality of passages (44, 62) allowing fluid communication between an inner nozzle tip surface portion (40) and an outer nozzle tip surface portion (42) and directly into a combustion chamber (10) of an internal combustion engine. A first group of the passages have inner surface apertures located in a first common plane (49, 67). A second group of the passages have inner surface apertures located in at least a second common plane (51, 69) substantially parallel to the first common plane. The second group has more passages than the first group.