Patent ID: 6598590
Filing Date: 2003-07-29
Classification: F02D,F02M

Abstract:
A fuel injection system for an internal combustion engine, having at least two different, high system pressures,having a first pressure reservoir (4), supplied by a high-pressure pump (3), for the higher system pressure, and having a second pressure reservoir (6) for the lower system pressure, in which the first pressure reservoir (4) and the second pressure reservoir (6) can alternatively be made to communicate by line with the injectors (10) of the individual cylinders of the engine for fuel injection with either the higher or the lower high system pressures, the pressure level of the high-pressure pump (3) is greater than the higher system pressure, and that the first pressure reservoir (4) has an overpressure valve (5) leading to the second pressure reservoir (6), and the second pressure reservoir (6) has an overpressure valve (7).