Patent ID: 7128054

Claim:
A fuel injection system for an internal combustion engine, comprising a housing; a high-pressure pump ( 14 ) supported by the housing, by which pump ( 14 ) fuel is pumped at high pressure into a reservoir ( 16 ); a feed pump ( 12 ; 212 ), by which fuel is pumped from a fuel tank ( 18 ) to the high-pressure pump ( 14 ); a fuel metering device ( 44 ), disposed between the feed pump ( 12 ; 212 ) and the high-pressure pump ( 14 ), by which the inflow of fuel to the high-pressure pump ( 14 ) is adjusted; a bypass connection ( 56 : 256 ), leading away from the connection between the feed pump ( 12 ; 212 ) and the fuel metering device ( 44 ), to a relief region, at least one conduit ( 50 ; 150 ; 250 ) in a part ( 48 ; 248 ) of the pump housing providing fuel inflow from the feed pump ( 12 ; 212 ) to the fuel metering device ( 44 ) and/or to the bypass connection ( 56 ; 256 ) and at least one fuel filter ( 52 , 60 ; 152 ; 252 ) disposed in the at least one conduit ( 50 ; 150 ; 250 ) upstream of the fuel metering device ( 44 ) and/or of the bypass connection ( 56 ; 256 ).