ENGINE UNIT


  1. CONSTRUCTION


    1. This controller consists of an outer housing that is driven by the timing chain sprocket, and a vane that is coupled to each camshaft.

    2. The exhaust side uses a VVT-i controller which uses a vane with 4 lobes.

    3. When the engine stops, the exhaust side VVT-i controller is locked at the most advanced angle. This ensures excellent engine startability.

    4. The oil pressure sent from the advance or retard side passages of the exhaust camshafts causes rotation of the vane relative to the timing chain sprocket, to vary the valve timing continuously.

    5. An advance assist spring is provided on the exhaust side VVT-i controller. This helps to apply torque in the advance angle direction so that the vane lock pin securely engages with the housing when the engine stops.

      A019QMKC01
      *1 Outer Housing *2 Vane (Coupled to Exhaust Camshaft)
      *3 Lock Pin *4 Timing Chain Sprocket
      *5 Exhaust Camshaft - -