FUEL PUMP FOR A DIRECT INJECTION SYSTEM

A fuel pump (1) for a direct injection system and having: a main body (2); a pumping chamber (4); a piston (5), which is mounted in a sliding manner on the inside of the pumping chamber (4); an intake duct (7), which ends in the pumping chamber (4); an intake valve (8), which is arranged along the i...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	PETRECCHIA, Stefano, SPIZZIRRI, Armando
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A fuel pump (1) for a direct injection system and having: a main body (2); a pumping chamber (4); a piston (5), which is mounted in a sliding manner on the inside of the pumping chamber (4); an intake duct (7), which ends in the pumping chamber (4); an intake valve (8), which is arranged along the intake duct (7); and a flow rate adjustment device (10) provided with a control rod (11) which is coupled to the intake valve (8) and with an electromagnetic actuator (12) which is configured to axially move the control rod (11) . The flow rate adjustment device (10) has a containing element (19), which houses the electromagnetic actuator (12), has an open end (21) facing the intake valve (8), and ends with a "U"-shaped rim (27) which has an outer ring which is arranged around the containing element (19) at a given distance from a cylindrical wall (24) of the containing element (19). An annular weld (22) is obtained between the main body (2) and the outer ring of the "U"-shaped rim (24).