NOZZLE BODY FOR A FLUID INJECTOR AND FLUID INJECTOR

A nozzle body (1) for a fluid injector (13) comprises a nozzle wall (3) which limits a penetrating opening (5) of the nozzle body (1) along a longitudinal axis (LA) from a fluid inlet end (21) to a fluid outlet end (22). The nozzle body (1) further comprises a sac volume portion (9) of the nozzle wa...

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Bibliographische Detailangaben
Hauptverfasser:	Gestri, Luca, Vongher, Sara, Agresta, Antonio
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 nozzle body (1) for a fluid injector (13) comprises a nozzle wall (3) which limits a penetrating opening (5) of the nozzle body (1) along a longitudinal axis (LA) from a fluid inlet end (21) to a fluid outlet end (22). The nozzle body (1) further comprises a sac volume portion (9) of the nozzle wall (3) formed in the region of the fluid outlet end (22) such as to limit a sac volume (11). Further, a needle seat (7) is formed as a portion of the nozzle wall 3 between the fluid inlet end (21) and the sac volume portion (9) of the nozzle body (1) to interact with a needle (32) to prevent a fluid flow through a flow hole (13) in a closed position and otherwise to enable it. The flow hole (13) comprises a hole axis (HA) and penetrates the nozzle wall (3) in the region of the fluid outlet end (22) from the opening (5) to outside of the nozzle body (1). The flow hole (13) comprises a shape of a circular segment with respect to a cross-section perpendicular to the hole axis (HA).