Fuel injector
AssigneeMagneti Marelli S.p.A.
InventorsMassimo Mattioli, Massimo Neretti, Luca Tassinari
Life of this patent
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Abstract
A fuel injector comprising a main tubular body provided with at least one through duct that terminates in a spray nozzle adapted to atomise the fuel contained in the through duct, a shutter member moving axially in this through duct from and to a closed position in which the shutter member is disposed in abutment on the spray nozzle closing it off in such a way as to prevent any discharge of fuel, and lastly a hydraulic damper adapted to brake the shutter member during its return to the above-mentioned closed position.
Claims8
A fuel injector (1) comprising a main tubular body (2) provided with at least one through duct (3) which terminates in a spray nozzle (3a) adapted to atomize fuel contained in the at least one through duct (3), and a shutter member (4) moving in the at least one through duct (3) from and to a closed position, in which the shutter member (4) closes the spray nozzle (3a), to prevent any fuel discharge, the fuel injector (1) being characterized in that it comprises damper means (8) of fluid-dynamic type adapted to brake the shutter member (4) during its return to the closed position.
Dependencies are inferred from the claim text.