A NOZZLE ASSEMBLY, A FUEL INJECTOR AND AN INTERNAL COMBUSTION ENGINE COMPRISING SUCH AN INJECTOR

摘要

This nozzle assembly (1) comprises a first needle (11) and a second needle (12) controlling respectively fuel flow towards a first series of outlets (213) and a second series of outlets (223). It includes a passive control valve (18) adapted to select, on the basis of the fuel feeding pressure, the needle (11 or 12) to be activated for fuel delivery to the combustion chamber of an internal combustion engine. An injector with such an assembly is economic and efficient to spray fuel with two different patterns.