Electromagnetic fuel injector for a direct injection...

Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating

Reexamination Certificate

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Details

C239S533100, C239S585100, C239S900000, C239SDIG019

Reexamination Certificate

active

07850100

ABSTRACT:
An embodiment of a fuel injector comprising: an injection valve provided with a mobile needle for regulating the fuel flow through an injection nozzle; a supporting body having a tubular shaft and displaying a feeding channel which ends with the injection valve; and an electromagnetic actuator comprising a spring which tends to maintain the needle in a closing position and an electromagnet, which comprises a coil arranged outside the supporting body, a fixed magnetic armature arranged within the supporting body, and a keeper which is arranged within the supporting body, is magnetically attracted by the magnetic armature against the bias of the spring, and is mechanically connected to the needle; the coil displaying a toroidal shape having an internal annular surface, which is directly in contact with an external surface of the supporting body without the interposition of any intermediate element.

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EPO Search Report for 06425829.6-2311.

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