Method of injecting fuel into the combustion chambers of an internal combustion engine, and fuel injection system for said engine

摘要

A method and a system are provided for injecting fuel into the combustion spaces of an internal-combustion engine, in which case the injection system contains a number of fuel injectors each comprising an injection valve and a common feed and storage line supplying the individual fuel injectors with highly pressurized fuel. The beginning and the end of the injection of the fuel into the combustion chamber are controlled by opening and closing the injection valve. A defined lowering of the fuel pressure existing in the fuel injector takes place during the injection, so that the pressure which rises because of the ram pressure during the closing of the injection valve at the end of the injection in the fuel injector does not exceed a defined value, particularly preferably the system pressure of the fuel injection system.