Patent ID: 6568602
Filing Date: 2003-05-27
Classification: F02M

Abstract:
A fuel injector comprising:a nozzle in a nozzle body, the nozzle at least partially defining a nozzle chamber and a check stop in the nozzle body, the check stop comprised by a solid state motor operable to move the check stop between a protruded position and a receded position; a check valve member slidably disposed in the nozzle body and extending into the nozzle chamber, wherein sliding motion of the check valve member is limited in a first direction to a closed position in which the check valve member obstructs fluid communication between the nozzle chamber and the nozzle orifice, and is limited in a second direction by the check stop; and an intensifier piston slidably disposed in the fuel injector and operable to increase fuel pressure in the nozzle chamber; and an actuator operable to divert high-pressure actuation fluid to the intensifier piston.