High-pressure pump for feeding fuel to an internal combustion engine

A high-pressure pump for feeding fuel to an internal combustion engine has a pump housing (2); a fuel delivery duct (3); and a check valve (4; 35), which is arranged along the delivery duct (3), and comprises a seat (7); a shutter (13; 36) mobile within the seat (7); and a biasing and guiding assemb...

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Bibliographische Detailangaben
Hauptverfasser:	GUARINO, ROCCO, DE LUCA, ALESSANDRO, LOIUDICE, NICOLA, MARINO, GIUSEPPE, CAVALLO, ANGELA, CAROLI, VITTORIO
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 POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A high-pressure pump for feeding fuel to an internal combustion engine has a pump housing (2); a fuel delivery duct (3); and a check valve (4; 35), which is arranged along the delivery duct (3), and comprises a seat (7); a shutter (13; 36) mobile within the seat (7); and a biasing and guiding assembly (14; 37), which has a fastening member (16; 38) suitable for being fastened to the pump housing (2) and sealing the seat (7) in a fluid-tight manner; a helical spring (17; 39) suitable for biasing the shutter (13; 36); and a bushing (18; 40) arranged about the helical spring (17; 39) in order to prevent curving of the helical spring (17; 39).