RETURNLESS FUEL SYSTEM OPERATION


BHE011413350T02

• Fuel in the fuel tank is pumped out through the fuel filter (low-pressure side) by the fuel pump, filtered by the fuel filter (high-pressure side), and then compressed to a specified pressure by the pressure regulator. The pressurized fuel passes through the pulsation damper and is sent to the fuel injector.

• The pressure regulator pressurizes fuel to approx. 390 kPa {3.98 kgf/cm2, 56.6 psi}. If the pressure exceeds the approx. 390 kPa {3.98 kgf/cm2, 56.6 psi}, the pressure regulator valve in the fuel pump unit opens to allow fuel to flow to the fuel tank.