Patent ID: 11879418
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fuel injector comprising:
a nozzle body having a plurality of spray orifices formed therein;
a plurality of spray ducts coupled to the nozzle body and in spray path alignment with the plurality of spray orifices;
a nozzle check movable within the nozzle body between an open position, and a closed position blocking the plurality of spray orifices; and
each of the plurality of spray ducts defining a duct center axis, and including a duct inner surface, and a center body forming, together with the duct inner surface, a spray jet passage extending circumferentially around the duct center axis and reduced in area in a direction of spray jet advancement from the nozzle body.