FUEL SYSTEM


  1. FUNCTION


    1. The fuel returnless system is used to reduce evaporative emissions. As shown below, by integrating the fuel filter, fuel pressure regulator assembly, fuel sender gauge assembly and fuel pump, it is possible to prevent the return of fuel from the engine area, thus preventing temperature rise inside the fuel tank assembly.

      A0044NAC07
      *1 Fuel Delivery Pipe *2 Fuel Injector Assembly
      *3 Fuel Filter *4 Fuel Pressure Regulator Assembly
      *5 Fuel Tank Assembly *6 Fuel Suction Tube with Pump and Gauge Assembly
      *7 Fuel Pump - -
      *a Return - -

  2. CONSTRUCTION


    1. Fuel Tank Assembly


      1. A multiplex layered plastic fuel tank assembly is used. This fuel tank assembly 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 assembly. When dismantling (scrapping) the vehicle, drain fuel by drilling a hole at the drain mark.

        A00458LC01
        *a Fuel Tank Wall Cross Section *b High Density Polyethylene (HDPE)
        *c Regrind Material *d Adhesive
        *e Ethylene Vinyl Alcohol Copolymer (EVOH) *f Fuel Drain Mark
        *g View from Bottom Side - -
        A0044QS Fuel Tank Assembly Outside A0044Y1 Fuel Tank Assembly Inside

    2. Fuel Suction Tube with Pump and Gauge Assembly


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

        A0044KIC04
        *1 Fuel Pressure Regulator Assembly *2 Charcoal Canister
        *3 Fuel Sender Gauge Assembly *4 Fuel Pump 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.

        A0044PTC01
        *1 Fuel Delivery Pipe *2 Fuel Injector Assembly
        *a A-A Cross Section - -
        A0044QS Pulsation Damping - -

    4. Fuel Injector Assembly


      1. An 8-hole type fuel injector assembly is used. This injector can atomize fuel, which prevents the fuel from adhering to the intake port walls and reduces exhaust emissions.

        A0045AUC01
        *a Fuel Injector Assembly Cross Section *b View from A