Valve assembly with a particle retainer element and fluid injection valve

A valve assembly (10) and a fluid injection valve (1) are disclosed. The valve assembly comprises a valve body (100) having a longitudinal axis (L) and a cavity (110), a valve needle (200), and an armature (300). The cavity (110) has a first portion (112) accommodating the armature (300) and being l...

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Bibliographische Detailangaben
Hauptverfasser:	Giorgetti, Edoardo, Matteucci, Luca
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBUSTION ENGINES DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve assembly (10) and a fluid injection valve (1) are disclosed. The valve assembly comprises a valve body (100) having a longitudinal axis (L) and a cavity (110), a valve needle (200), and an armature (300). The cavity (110) has a first portion (112) accommodating the armature (300) and being limited in axial direction towards a fluid outlet end (130) by a bottom surface (114) having a central opening (116). A second portion (118) of the cavity (110) extends from the central opening (116) towards the fluid outlet end (130) . A shaft (240) of the valve needle (200) extends through the opening (116) into the second portion (118). A particle retainer element (400) is positioned in the cavity (110) such that it bears on the bottom surface (114), circumferentially surrounds the shaft (240) of the valve needle (200) and overlaps with the opening (116).