HIGH-PRESSURE PUMP UNIT FOR SUPPLYING FUEL, PREFERABLY DIESEL FUEL, TO AN INTERNAL COMBUSTION ENGINE

摘要

A high-pressure pump unit for supplying fuel, comprising: a pump body (2); at least two cylinders (4); a pump piston (10) for each cylinder (4), engaged slidably in the respective cylinder (4); an intake valve (5) for each cylinder (4), for the selective control of a flow fuel into the respective cylinder (4); and an actuator (41) which controls the at least two intake valves (5).