FLERHALS INSPRUTNINGSMUNSTYCKE, SERSKILT FOR FORBRENNINGSMOTORER MED BRENSLEPAFORING PA FORBRENNINGSRUMMETS VEGG

摘要

A multi-hole injection nozzle for air-compressing direct-injection internal combustion engines includes a first nozzle needle which is hollow, and a second nozzle needle which is axially slidable in an axial bore of the first needle. The first needle can close one or more nozzle holes which are spaced from the tip of the injection nozzle and the second needle can similarly close one or more nozzle holes which are, however, close to the tip and which have respectively different cross-sectional areas.