БЛОК ДВИГАТЕЛЯ


  1. CONSTRUCTION


    1. This engine uses valve rocker arms with built-in needle bearings. This reduces the friction that occurs between the cams and the roller rocker arms when the valves are pushed down, thus improving fuel economy.

    2. A valve lash adjuster, which maintains a constant zero valve clearance through the use of oil pressure and spring force, is used.

    3. The intake and exhaust camshafts are driven by the crankshaft via the timing chain.

    4. A valve spring, whose upper portion is shaped like a beehive, is used to reduce inertial mass. As a result, the load on the valve spring and friction are reduced.

    5. The diameter of the valve spring retainer has been decreased to reduce inertial mass and friction.

    6. The Dual Variable Valve Timing-intelligent (Dual VVT-i) system is used to achieve low fuel consumption and higher engine performance, reducing exhaust emissions.

    7. This engine uses the Dual VVT-i system which controls the intake camshaft and exhaust camshaft to provide optimal valve timing in accordance with driving conditions. As a result, lower fuel consumption, higher engine performance and fewer exhaust emissions have been achieved.

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      *1 Chain Sub-assembly *2 Exhaust VVT-i Controller (Camshaft Timing Exhaust Gear Assembly)
      *3 Intake VVT-i Controller (Camshaft Timing Gear Assembly) *4 No. 1 Chain Tensioner Assembly
      *5 Chain Tensioner Slipper *6 Crankshaft Timing Gear
      *7 Crankshaft *8 No. 1 Chain Vibration Damper
      *9 Intake Camshaft (Camshaft) *10 Exhaust Camshaft (No. 2 Camshaft)
      *11 Timing Chain Guide *12 No. 1 Valve Rocker Arm Sub-assembly
      *13 Valve Stem Cap *14 Valve Spring Retainer Lock
      *15 Valve Spring Retainer *16 Inner Compression Spring
      *17 Valve Stem Oil Seal *18 Valve Spring Seat
      *19 Valve *20 Valve Lash Adjuster Assembly

      Figure 1. Valve Timing

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