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 pump filter, fuel pressure regulator assembly, charcoal canister, and fuel sender gauge assembly 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 assembly.

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

  2. CONSTRUCTION


    1. Fuel Tank Assembly


      1. A multi-layer 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.

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        *1 High Density Polyethylene (HDPE) *2 Regrind Material
        *3 Adhesive *4 Ethylene Vinyl Alcohol Copolymer (EVOH)
        *5 Fuel Drain Mark - -
        *a Fuel Tank Wall Cross Section *b Fuel Tank Assembly Outside
        *c Fuel Tank Assembly Inside *d View from Bottom Side

    2. Fuel Pump Assembly


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

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        *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.

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        *1 Fuel Delivery Pipe - -
        *a A-A Cross Section - -

    4. Fuel Injector Assembly


      1. The 6-hole type fuel injector assembly is used to improve the atomization of fuel.

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        *a View from A - -