Ford Focus>> Power supply system>> Main components of a power supply system

Fig. 183. Fuel pump

The fuel pump with the electric drive is established in a fuel tank. The pump and the sensor of the index of level of fuel form one knot. The Reduktsionny valve returns superfluous fuel and gases back in a tank. The valve also supports at necessary level pressure in system of injection of fuel at the switched-off ignition (fig. 183) .
The fuel filter for petrol and diesel engines is established in the combustion chamber before direct injection of fuel. It clears fuel of liquid and firm inclusions.
The active coal filter is established in podkapotny space. The filter catches pairs of fuel leaving a fuel tank. At the working motor the electromagnetic valve opens, and pairs of fuel compulsorily move from the coal filter in an inlet collector where mix up with a fresh fuel mix.