VALVOLA DI MANDATA A PRESSIONE COSTANTE PER POMPE DI INIEZIONE DEL COMBUSTIBILE PER MOTORI A CICLO DIESEL

摘要

A constant-pressure delivery valve for fuel injection pumps for diesel engines includes a conical-surface obturator to which is fixed a body forming an axial chamber containing a calibrated one-way valve with a ball obturator. The ball obturator is located on that side of the chamber facing the conical-surface obturator and controls communication between radial and axial fuel return passages formed beneath the bottom of the chamber.