Deposit control in fuel injector nozzles

An injector nozzle for a fuel injected internal combustion engine, said injector nozzle including a port (5) having a valve seat surface (15) and a valve member (3) having a seating surface (17), said valve member being movable relative to the port to respectively provide a nozzle passage (6) betwee...

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Bibliographische Detailangaben
Hauptverfasser:	FREW, ROBERT WALTER, MURDOCH, PETER JOHN, CARLISLE, HUGH WILLIAM, MILLS, JOHN RICHARD
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	An injector nozzle for a fuel injected internal combustion engine, said injector nozzle including a port (5) having a valve seat surface (15) and a valve member (3) having a seating surface (17), said valve member being movable relative to the port to respectively provide a nozzle passage (6) between the valve seat surface and the seating surface for the delivery of fuel therethrough or sealed contact therebetween to prevent said delivery of fuel, the valve member including an outer valve surface (18) located adjacent the seating surface and external to the port, wherein a sharp edge (25) is provided on the valve member at the transition between the seating surface and the outer valve surface thereby for controlling the formation of deposits at or adjacent an exit of the nozzle passage.