Method and apparatus for manufacturing a valve group for an injector

A valve group (2) has a cartridge (4) with a cartridge recess (10). A needle (8) is arranged in the cartridge recess (10) movable in axial direction. The cartridge (4) and the needle (8) prevent a fluid flow through an cartridge opening (11) in a closed position of the needle (8) and otherwise enabl...

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Bibliographische Detailangaben
Hauptverfasser:	Gestri, Luca, Mureddu, Annamaria
Format:	Patent
Sprache:	eng ; fre ; ger
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:	A valve group (2) has a cartridge (4) with a cartridge recess (10). A needle (8) is arranged in the cartridge recess (10) movable in axial direction. The cartridge (4) and the needle (8) prevent a fluid flow through an cartridge opening (11) in a closed position of the needle (8) and otherwise enable the fluid flow through the cartridge opening (11). The cartridge recess (10) has one or more characteristic diameters. At least one characteristic geometry of the respective needle (8) for the cartridge (4) is manufactured dependent on the one or respectively more characteristic diameters of the cartridge recess (10).