Pump unit for supplying fuel, preferably diesel oil, from a containing tank to an internal combustion engine

A pump unit for supplying a fuel, preferably diesel oil, to an internal combustion engine (3) is provided with a pre-feed pump (7) adapted to draw the fuel from a containing tank (2), and with a fluid circuit (14) having a first branch (15) for interconnecting the pre-feed pump (7) and a high-pressu...

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Bibliographische Detailangaben
Hauptverfasser:	MEDORO NELLO, GISSI RUGGIERO, LAMM MARCO, TAVANI MANUEL
Format:	Patent
Sprache:	chi ; eng
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 pump unit for supplying a fuel, preferably diesel oil, to an internal combustion engine (3) is provided with a pre-feed pump (7) adapted to draw the fuel from a containing tank (2), and with a fluid circuit (14) having a first branch (15) for interconnecting the pre-feed pump (7) and a high-pressure pump (6), a second branch (17) for interconnecting the high-pressure pump (6) and the internal combustion engine (3), and a third branch (21), which interconnects the first branch (15) and the containing tank (2), and is formed at least partially by an overflow valve (26) and by a connector (37) mounted coaxially with each other in a mounting aperture (27) formed through a pump housing (8) of the high-pressure pump (6).