FUEL SYSTEM


  1. FUNCTION


    1. Fuel Returnless System


      1. This system is used to reduce the evaporative emission. As shown below, by integrating the fuel filter, pressure regulator, charcoal canister, and fuel sender gauge with fuel pump assembly, it is possible to discontinue the return of fuel from the engine area and prevent temperature rise inside the fuel tank.

        A005G3BE02
        Text in Illustration
        *1 Fuel Delivery Pipe *2 Fuel Injector
        *3 Pressure Regulator *4 Fuel Filter
        *5 Fuel Pump *6 Charcoal Canister
        *7 Fuel Tank *8 Fuel Pump Assembly

  2. CONSTRUCTION


    1. Fuel Tank Assembly


      1. A multiplex layered plastic fuel tank is used. This fuel tank consists of 6 layers of 4 types of materials.

      2. A fuel drain mark has been provided at the lowest position of the fuel tank. When dismantling (scrapping) the vehicle, drain fuel by drilling a hole at the drain mark.

        A005FWXE01
        Text in Illustration
        *1 High Density Polyethylene (HDPE) *2 Regrind Material
        *3 Adhesive *4 Ethylene Vinyl Alcohol Copolymer (EVOH)
        *5 Fuel Tank Assembly Outside *6 Fuel Tank Assembly Inside
        *7 Fuel Tank Wall Cross Section *8 Fuel Drain Mark
        *9 View from Bottom Side - -

    2. Fuel Pump


      1. A compact fuel pump, fuel filter, pressure regulator, fuel sender gauge and charcoal canister are integrated into the fuel pump assembly.

        A005FXLE02
        Text in Illustration
        *1 Pressure Regulator *2 Charcoal Canister
        *3 Fuel Sender Gauge *4 Fuel Filter
        *5 Fuel Pump - -

    3. Fuel Delivery Pipe


      1. A pressed steel fuel delivery pipe is used.

      2. Pulsation that occurs when the fuel is fed is absorbed by the volume change caused by bending in the fuel delivery pipe. Therefore, the separately provided pulsation damper has been discontinued, reducing the size and weight.

        A005G5QE02
        Text in Illustration
        *1 Fuel Delivery Pipe *2 Fuel Injector
        *3 A-A Cross Section - -

    4. Injector


      1. The injector is shaped to form a long nozzle. This shortens the distance from the injector to intake valve, which prevents the fuel from adhering to the intake port walls and reduces exhaust emissions.

        A005FYVE03
        Text in Illustration
        *1 View from A - -