EMISSION CONTROL SYSTEM


  1. CONSTRUCTION


    1. Models with EGR Cooler


      1. A water-cooled type No. 1 EGR cooler is used between the exhaust manifold and electric EGR control valve assembly. In the water-cooled type No. 1 EGR cooler, engine coolant flows through eight-layered gas passage to cool down the EGR gas.

      2. The No. 2 EGR valve assembly is used. The EGR gas passage is switched in 2 stages by the No. 2 EGR valve assembly to optimize the temperature of the EGR gas.

        Figure 1. EGR Gas Flow

        B002MYRC01
        *1 Exhaust Manifold *2 No. 1 EGR Cooler
        *3 Diesel Throttle Body Assembly *4 Intake Manifold
        *5 No. 2 EGR Valve Assembly *6 Electric EGR Control Valve Assembly
        *a Intake Air *b EGR Gas
        *c EGR Gas (through Bypass Passage) - -

    2. Models without EGR Cooler


      1. EGR gas is sent to the intake manifold through the No. 1 EGR pipe, EGR valve adapter, EGR valve and No. 2 EGR pipe.

        Figure 2. EGR Gas Flow

        B002NH3C01
        *1 Exhaust Manifold *2 Diesel Throttle Body Assembly
        *3 Intake Manifold *4 No. 1 EGR Pipe Sub-assembly
        *5 Electric EGR Control Valve Assembly *6 EGR Valve Adapter
        *a Intake Air *b EGR Gas