118 F2B ENGINE T RAKKER E URO 4/5 FUEL SYSTEM Fuel is supplied via a fuel pump, filter and pre-filter, 6 pump-injectors governed by the camshaft via rocker arms and by the electronic control unit. Figure 240 Return circuit Supply circuit 115265 ENGINE FEED SCHEME 1. Fuel filter - 2. Pressure damping device - 3. Pressure control valve (start of opening at 5 bar) - 4. Feed pump - 5. Fuel pre-filter with priming pump - 6. Valve, to recirculate fuel from injectors, integrated in feed pump (start of opening at 3.5 bar) - 7. Central unit - 8. Heat exchanger - 9. One-way valve to return fuel to tank (start of opening at 0.2 bar) - 10. Pump injectors A.
Fuel arriving at injectors - B. Fuel returning to tank Base q November 2006 Print 603.93.641