Fuel injection system for internal combustion engines

A fuel injection system for internal combustion engines, having a plurality of electromagnetically operable fuel injection valves of the top-feed type in combination with a fuel distributor housing which has a distributor duct formed along a length of the fuel distributor housing, comprising a valve housing with a supply connection (120) having an end-face fuel supply opening and, for valve control, two electrical plug connection elements (121, 122) which protrude axially from the valve housing and extend at a parallel distance from one another on diametrical sides of the supply connection (120), said fuel distributor housing begins with a fuel supply and ends with a fuel drain and includes a number of connecting branches (116) which correspond to the plurality of fuel injection valves, said connecting branches (116) are integral with the fuel distributor housing and connected via outlet openings with the distributor duct, said valve housings are inserted into said connecting branches in a fluid-tight manner with the supply connections (120) of the fuel injection valves in alignment with said outlet opening, said electrical plug jacks (126, 127) are integrated with the fuel distributor housing (111) and designed for corresponding acceptance of the electrical plug connection elements (121, 122) and, in each case, two of the plug jacks (126, 127) are allocated to a connecting branch (116) in the fuel distributor housing (111) in such a way that when the supply connection (120) is pushed into an insertion opening (136) of the connecting branch (116), the electrical plug connection elements (121, 122) also penetrate into the associated plug jacks (126, 127), in which each connecting branch (116) includes two separate pockets (137, 138) located near the insertion opening (136) for the supply connections (120) of the fuel injection valves (118) in which the plug jacks (126, 127) each of which is connected to a connecting conductor (145, 146) is accommodated, and each connecting branch (116) carries an axially protruding catch collar (156) on its end having the insertion opening (136) for the supply connection (120) of the fuel injection valves (118), which catch collar (156) engages behind a locking flange (159) on the supply connection (120) of the fuel injection valves (118).

A fuel injection system for internal combustion engines, having a plurality of electromagnetically operable fuel injection valves of the top-feed type in combination with a fuel distributor housing which has a distributor duct formed along a length of the fuel distributor housing, comprising a valve housing with a supply connection (120) having an end-face fuel supply opening and, for valve control, two electrical plug connection elements (121, 122) which protrude axially from the valve housing and extend at a parallel distance from one another on diametrical sides of the supply connection (120), said fuel distributor housing begins with a fuel supply and ends with a fuel drain and includes a number of connecting branches (116) which correspond to the plurality of fuel injection valves, said connecting branches (116) are integral with the fuel distributor housing and connected via outlet openings with the distributor duct, said valve housings are inserted into said connecting branches in a fluid-tight manner with the supply connections (120) of the fuel injection valves in alignment with said outlet opening, said electrical plug jacks (126, 127) are integrated with the fuel distributor housing (111) and designed for corresponding acceptance of the electrical plug connection elements (121, 122) and, in each case, two of the plug jacks (126, 127) are allocated to a connecting branch (116) in the fuel distributor housing (111) in such a way that when the supply connection (120) is pushed into an insertion opening (136) of the connecting branch (116), the electrical plug connection elements (121, 122) also penetrate into the associated plug jacks (126, 127), in which each connecting branch (116) includes two separate pockets (167, 138) located near the insertion opening (136) for the supply connection (120) of the fuel injection valves (118) in which the plug jacks (126, 127) each of which is connected to a connecting conductor (145, 146) is accommodated, and a dirt filter basket (165) inserted in each supply connection (120) of the fuel injection valves (118).

A fuel injection system for internal combustion engines, having a plurality of electromagnetically operable fuel injection valves of the top-feed type in combination with a fuel distributor housing which has a distributor duct formed along a length of the fuel distributor housing, comprising a valve housing with a supply connection (120) having an end-face fuel supply opening and, for valve control, two electrical plug connection elements (121, 122) which protrude axially from the valve housing and extend at a parallel distance from one another on diametrical sides of the supply connection (120), said fuel distributor housing begins with a fuel supply and ends with a fuel drain and includes a number of connecting branches (116) which correspond to the plurality of fuel injection valves, said connecting branches (116) are integral with the fuel distributor housing and connected via outlet openings with the distributor duct, said valve housings are inserted into said connecting branches in a fluid-tight manner with the supply connections (120) of the fuel injection valves in alignment with said outlet opening, said electrical plug jacks (126, 127) are integrated with the fuel distributor housing (111) and designed for corresponding acceptance of the electrical plug connection elements (121, 122) and, in each case, two of the plug jacks (126, 127) are allocated to a connecting branch (116) in the fuel distributor housing (111) in such a way that when the supply connection (120) is pushed into an insertion opening (136) of the connecting branch (116), the electrical plug connection elements (121, 122) also penetrate into the associated plug jacks (126, 127), in which each connecting branch (116) includes two separate pockets (137, 138) located near the insertion opening (136) for the supply connections (120) of the fuel injection valves (118) in which the plug jacks (126, 127) each of which is connected to a connecting conductor (145, 146) is accommodated, and a longitudinally continuous filter duct (166) extends parallel to the distributor duct (112) between the distributor duct (112) and the outlet openings (117) of the connecting branches (116) and is in connection with both connecting branches, and a replacement filter (167) is located in the filter duct (166).