Patent ID: 6520421
Filing Date: 2003-02-18
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; a seat secured at the second end of the tube assembly, the seat defining an opening; an armature assembly disposed within the tube assembly; a member biasing the armature assembly toward the seat; an adjusting tube disposed in the tube assembly, the adjusting tube engaging the member and adjusting a biasing force of the member; a filter located at the first end of the tube assembly, the filter having a retaining portion; an O-ring circumscribing the first end of the tube assembly, the retaining portion of the filter positioning the O-ring proximate the first end of the tube assembly; and a first attachment portion; and a coil group subassembly including: a solenoid coil operable to displace the armature assembly with respect to the seat; and a second attachment portion fixedly connected to the first attachment portion.