Kraftstoffhochdruckspeichersystem für ein in Brennkraftmaschinen eingesetztes Kraftstoffeinspritzsystem

摘要

The invention relates to a high-pressure fuel accumulator system for a fuel injection system fitted to an internal combustion engine, in which fuel is conveyed to at least one central main fuel accumulator (20) via a high-pressure pump (3) so that it can be fed from there to electrically controlled fuel injection valves (7). Within the high-pressure fuel accumulator system, a supplementary fuel accumulator is hydraulically connected to a main fuel accumulator (20). A remotely operated, electrically controlled valve (40) is fitted in the hydraulic link (21, 31) between the two high-pressure accumulators. On changes in load requiring an increase in pressure in the main fuel accumulator, part of the quantity of fuel to be fed thereto is provided from the supplementary accumulator, thus considerably easing the load on the high-pressure pump.