Weld joint design for an armature/ball assembly for a fuel injector

DRIVE March 6, 2002
Source
A fuel injector is provided. The fuel injector includes a metering member (20) for delivering fuel from a delivery end (14) of the fuel injector (10). The metering member comprises a seat (12) disposed proximate the delivery end of the fuel injector; and an armature assembly (100). The armature assembly includes a longitudinal axis, a seating element (130) disposed generally along the longitudinal axis, and an elongated tube (120). The elongated tube has a first end (122), a second end (124), and a tube channel (126) extending from the second end toward the first end. The first end has a first portion connected to the seating element with at least one weld and a second portion disposed distal from the longitudinal axis from the first portion. The armature assembly is reciprocably disposed within the fuel injector between a closed position wherein the seating element (130) is biased against the seat (12) and an open position wherein the seating element is disposed away from the seat. A method of manufacturing the armature assembly is also provided.

Discussion in the ATmosphere

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