Patent ID: 6840500

Claim:
A method of manufacturing a fuel injector, comprising: providing a valve group subassembly comprising: 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; an armature assembly disposed within the tube assembly, the armature assembly having an armature face that confronts the inlet tube face across a working gap, 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 filter assembly located in the tube assembly, the filter assembly engaging the member and adjusting a biasing force of the member; and a first attaching portion; providing a coli group subassembly including: a solenoid coil operable to displace the armature assembly with respect to the seat; and a second attaching portion; inserting the valve group subassembly into the coil group subassembly; and connecting the first and second attaching portions together.