Patent ID: 6363913
Filing Date: 2002-04-02
Classification: F02M

Abstract:
A fuel injector comprising:a nozzle at least partially defining a nozzle chamber and at least one injection orifice; a check valve member extending into the nozzle chamber and slidably disposed in a nozzle body between a first position in which the check valve member obstructs fluid communication between the nozzle chamber and the injection orifice and a second position in which the nozzle chamber and the injection orifice are in fluid communication; a solid state motor in the nozzle body capable of moving the check valve member toward said second position; and a hydraulic fluid system for delivering a high-pressure hydraulic fluid therethrough, the hydraulic fluid system being capable of selectively diverting the high-pressure hydraulic fluid in such a manner so as to thereby be adapted to bias the check valve member toward said first position and adapted to enable a pressure increase in the nozzle chamber.