Common-rail fuel-injection system, for automotive vehicle internal combustion engine, has first and second distributor slide valves controlling opening of injectors

摘要

Downstream of the collector chamber, the high pressure conduit (12), connected to the injectors, have a first distributor slide-valve distributor (7), and the conduit, at the command end (25,31), is controlled to open, by another slide-valve distributor (26) located in this conduit, close to the nozzle. The system has a high-pressure collector chamber (5) receiving the pressure by a high-pressure pump (3) and feeding pressurized fuel to a number (1-n) of fuel injectors (6,21), these different injectors having a needle nozzle (22) which opens or closes the ejection nozzles (23).