Fig. 2.201. Scheme of work of fuel system: 1 – fuel pump; 2 – fuel filter; 3 – quencher of pulsations; 4 – pressure regulator; 5 – block of the fuel pump; 6 – fuel tank

This system is used for decrease in release of vapors of fuel. As shown below (see fig. 2.201), combination of the fuel filter, regulator of pressure and the fuel level sensor in the block of the fuel pump allowed to refuse return of fuel from the engine and to prevent temperature increase in the fuel tank.