Internal combustion engine fuel injector
AssigneeElasis Sistema Riocerca Fiat Nel Mezzogiorno Societa Consortille per Azioni
InventorMario Ricco
Life of this patent
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Abstract
The injector has a hollow body carrying a nozzle; a metering valve; and an electromagnet for activating an armature controlling the valve. The electromagnet is housed inside a jacket integral with an end wall fitted with a discharge fitting of the valve. The armature is guided by a guide member having a thread engaging a corresponding thread of the hollow body, independently of fitment of the body of the valve. A spacer of modular size is provided between the electromagnet and the guide member to adjust the gap between the armature and the electromagnet. The jacket is fitted to the hollow body by screwing a cover onto the hollow body.
Claims15
An internal combustion engine fuel injector comprising a hollow body (12) fitted with a nozzle;
- a metering valve (24) for opening said nozzle;
- and an electromagnet (26) for activating an armature (27) controlling said metering valve (24);
- said armature (27) being guided by a guide member (66);
- said metering valve (24) and said guide member (66) being fitted inside a cavity (17) of said hollow body (12);
- and said electromagnet (26) being housed inside a jacket (54) fitted to said hollow body (12);
- wherein said jacket (54) and an end wall (57) against which said electromagnet (26) rests constitute one piece.
Dependencies are inferred from the claim text.