Example of an identification number on the fuel injector of the Ford Mondeo Inside the hydraulic servo system there are various restrictions with extremely small diameters which have specific manufacturing tolerances. These manufacturing tolerances are given as part of an identification number which is located on the outside of the fuel injector. To ensure optimum… Read More »
Fuel injectors on the 2.0L Duratorq-TDCi A Solenoid valve B Hydraulic servo system C Fuel injector nozzle 1 Fuel injector 2 Clip for the leak-off pipe 3 Leak-off pipe 4 Electrical connection – solenoid valve The start of injection and the injected fuel quantity are adjusted by means of the electrically-actuated fuel injectors. The fuel… Read More »
High-pressure fuel supply lines NOTE: The bending radii are exactly matched to the system and must not be changed. NOTE: After undoing one or more high-pressure fuel line(s), it/they must be replaced. Reason: The reason for this is that leaks can occur when re-tightening, due to distortion of the connections of the old lines. The… Read More »
1 High-pressure connection 2 High-pressure channel 3 Ball valve 4 Valve spring Inside the high-pressure pump, just in front of the high-pressure connection is an excess pressure safety valve incorporated into the high-pressure channel. If there is a malfunction in the system, this is an additional safety feature to prevent the fuel pressure from getting… Read More »
A Fuel fuel injection supply manifold (rail type) B Fuel fuel injection supply manifold (spherical type) 1 Fuel pressure sensor 2 Fuel rail 3 Line connection (to the fuel injector) 4 Line connection (from the high-pressure pump) Structure and task The fuel rail is made of forged steel. Depending on the engine design and availability… Read More »
1 Inlet valve 2 Cam ring 3 Roller with roller support 4 High-pressure chamber 5 Outlet valve 6 Pump plunger The storage pressure required for the fuel rail is generated in the high pressure chamber of the high pressure pump. The system uses the radial piston method of operation and consists of one inlet and… Read More »
1 Pressure control valve 2 Return bore 3 Feed bore – high-pressure chamber 4 Leak-off fuel – fuel injectors 5 Fuel return to fuel tank 6 High pressure channel to fuel rail 7 Fuel feed to the transfer pump The low pressure fuel return has the following functions: • Cools and lubricates the high-pressure pump… Read More »
1 Drive shaft 2 Transfer pump (vane-type pump) 3 Cam ring 4 Feed bore 5 Fuel temperature sensor 6 Venturi in fuel return 7 Fuel metering valve 8 High pressure connection to the fuel rail 9 High-pressure channel 10 High-pressure chamber Fuel is delivered by a transfer pump (vane type pump) incorporated into the high-pressure… Read More »
1 Rail-type fuel injection supply manifold 2 Spherical fuel injection supply manifold 3 Fuel injection line 4 Fuel injector 5 Connection – leak-off pipe 6 Electrical connection – solenoid valve 7 High pressure line 8 Fuel temperature sensor 9 Fuel metering valve 10 Protective plate for venturi 11 High pressure pump 12 Fuel supply line… Read More »
1 Connection – return pipe 2 Connection – feed pipe (from tank) 3 Connection – feed pipe (to the high-pressure pump) * 4 Filter element 5 Water drain screw 6 Bi-metal 7 Ball valve * Feed pipe connections – in this diagram, shown directly behind one another. The common rail injection system has a fuel… Read More »