| 摘要 |
A fuel injector having a housing including an inlet, an outlet, and a passageway for fuel flow from the inlet to the outlet. A coil assembly is disposed proximate the inlet of the fuel injector. A seat is disposed proximate the outlet of the fuel injector. A closure member is disposed in the housing and operable by the coil assembly to permit and prohibit fuel flow through the seat. The closure member includes a sleeve and an armature. The sleeve extends along a longitudinal axis and has first and second ends, the sleeve including an outer surface a first distance from the longitudinal axis. The armature is coupled to the first end of the sleeve, the armature having an outer perimeter a second distance from the longitudinal axis, the second distance not greater than the first distance.
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