Patent ID: 6409101
Filing Date: 2002-06-25
Classification: F02M

Abstract:
A fuel injector comprising:a hollow body having an upstream segment and a downstream segment; and a valve having: a needle assembly reciprocably mounted in the hollow body, the needle assembly including: an upstream segment having: a first longitudinal channel extending therethrough; and a magnetic armature located within the first longitudinal channel, the armature including a passage extending therethrough; and a downstream segment having: a second longitudinal channel co-axial with and communicating with the first longitudinal channel, the second longitudinal channel extending therethrough; a seating body located at a downstream end of the downstream segment; and a transverse passage located upstream of the seating body, the transverse passage communicating with at least one of the first and the second longitudinal channels; and a seat disposed downstream of the needle, the seating body being adapted to sealingly mate with the seat when the needle is in a closed position, wherein the downstream segment is connected to the upstream segment with a telescopic connection.