Fuel Pump for a Direct Injection System

A valve assembly for a fuel pump and having: a one-way outlet closing valve, which only allows fuel to flow out; a one-way pressure relief valve, which only allows fuel to flow in; a connector, which has a housing on the inside; a valve disc, which engages the housing of the connector and has a plur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Mancini, Luca, Spizzirri, Armando, Marianello, Riccardo, Petrecchia, Stefano, Petrone, Michele, Pasquali, Paolo
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES 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 WEAPONS
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Beschreibung
Zusammenfassung:	A valve assembly for a fuel pump and having: a one-way outlet closing valve, which only allows fuel to flow out; a one-way pressure relief valve, which only allows fuel to flow in; a connector, which has a housing on the inside; a valve disc, which engages the housing of the connector and has a plurality of through outlet holes and a through relief hole; an annular body which is arranged in the housing of the connector and has a central through hole; a spring, which is part of the pressure relief valve, is arranged in the central hole of the annular body and pushes a shutter of the pressure relief valve; and a connection element interposed between the shutter of the pressure relief valve and the spring. The central hole of the annular body has an annular protuberance which constitutes a limit stop that limits the travel of the connection element.