Patent ID: 7077107

Claim:
A fuel injection system for an internal combustion engine, comprising a feed pump ( 12 ) by which fuel is pumped from a fuel tank ( 10 ) to the intake side of a high-pressure pump ( 14 ), and the high-pressure pump ( 14 ) pumps fuel into a reservoir ( 16 ) as a function of engine operating parameters, an electrically operated fuel metering device ( 44 ) for setting the fuel quantity pumped into the reservoir ( 16 ) by the high-pressure pump ( 14 ), and an electrically operated blocking valve ( 46 ) disposed between the feed pump ( 12 ) and the high-pressure pump ( 14 ), the blocking valve ( 46 ) being operable to disconnect the high-pressure pump ( 14 ) completely from the feed pump ( 12 ), wherein the fuel metering device ( 44 ) is disposed between the feed pump ( 12 ) and the high-pressure pump ( 14 ); and wherein the blocking valve ( 46 ) is either disposed in series with the fuel metering device ( 44 ), between the latter and the feed pump ( 12 ), or between the fuel metering device ( 44 ) and the high-pressure pump ( 14 ).