ENGINE UNIT


  1. CONSTRUCTION


    1. Pistons made of a lightweight aluminum alloy with high rigidity are used. Also, the thickness of the pistons has been optimized. Weight reduction is achieved while high reliability is ensured.

    2. The shape of the top surface of the pistons has been optimized and a compact combustion chamber is provided to achieve stable combustion by generating a high tumble flow.

    3. A surface treatment with superior seize resistance is used with a resin coating for the piston skirts to ensure scuffing resistance and low friction.

    4. A Ni-resist ring carrier is used in the top ring groove to ensure strength and wear resistance. Also, the ring carrier is offset. As a result, the compression height is reduced.

    5. The size of the ring carrier has been optimized to achieve weight reduction.

    6. A Physical Vapor Deposition (PVD) coating has been applied to the No. 1 compression ring and oil ring to ensure resistance against wear, and a chrome coating has been applied to the No. 2 compression ring.

      A001MQZC01
      *1 Piston *2 Ring Carrier
      *3 No. 1 Compression Ring *4 No. 2 Compression Ring
      *5 Oil Ring *6 Expander
      *a Combustion Chamber *b Surface Treatment and Resin Coating
      *c Compression Height *d Ring Carrier Offset
      *e Physical Vapor Deposition (PVD) Coating *f Chrome Coating