Patent ID: 6607143
Filing Date: 2003-08-19
Classification: F02M,Y10S

Abstract:
A fuel injector for use with an internal combustion engine, the fuel injector comprising:a valve group subassembly including: a tube assembly having a longitudinal axis extending between a first end and a second end, the tube assembly including an inlet tube having an inlet tube face; a seat secured at the second end of the tube assembly, the seat defining an opening; a lift sleeve telescopically disposed within the tube assembly a predetermined distance to set a relative axial position between the seat and the tube assembly; an armature assembly disposed within the tube assembly, the armature assembly having an armature face, at least one of the armature face and the inlet tube face having a first portion generally oblique to the longitudinal axis; a member biasing the armature assembly toward the seat; an adjusting tube located in the tube assembly, the adjusting tube engaging the member and adjusting a biasing force of the member; a first attaching portion; and a coil group subassembly including: a solenoid coil operable to displace the armature assembly with respect to the seat; and a second attaching portion fixedly connected to the first attaching portion.