Fuel injector for an internal combustion engine
AssigneeRENAULT s.a.s.
InventorsNadim Malek, Andre Agneray
Life of this patent
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Abstract
A fuel injector for an internal combustion engine, particularly of inwards or outwards opening needle injector type, includes an injector body, e.g., forming a nozzle ending in an injection office, a mechanism for closing off the injection orifice of the injector body, the closing-off mechanism including a vibrating pintle ending in a head for closing off the injection orifice, a return mechanism returning the closing-off to the position in which they close off the injection orifice, and a mechanism for setting the pintle and/or the nozzle into cyclic longitudinal vibration so as to open and close the injection orifice alternately. The fuel injector includes a selectively activatable mechanism immobilizing the pintle with respect to the body.
Claims11
1-10. (canceled)
A fuel injector for an internal combustion engine, of inward-opening valve type or outward-opening valve type, comprising:
- an injector body forming a nozzle terminating in an injection hole;
- means for closing the injection hole of the injector body, the means for closing including a vibrating pin terminating in a valve head for closing the injection hole;
- means for returning the means for closing to a position for closing the injection hole;
- means for setting the pin and/or the nozzle in cyclic longitudinal vibration so as to alternately open and close the injection hole;
- and
- selectively activatable means for immobilizing the pin in relation to the body.
Dependencies are inferred from the claim text.