INTAKE SYSTEM


  1. CONSTRUCTION


    1. The intake manifold is made of plastic to realize a lightweight construction.

    2. The intake air surge tank consists of an upper and lower section and contains an intake air control valve. This valve is activated by the Acoustic Control Induction System (ACIS) and is used to alter the intake pipe length to ensure the engine performance in all engine speed ranges.

    3. A mesh type gasket is used between the throttle body with motor assembly and the intake manifold to ensure the flow of air within the intake manifold.

    4. The ACIS valve actuator uses a VSV and a vacuum actuator and is laser-welded onto the intake air surge tank. Many of the components are made of plastic for weight reduction.

    5. A tumble control valve is provided in the intake manifold. The tumble control valve is activated by the tumble control system.

    6. A DC motor type intake air control valve actuator is provided for the tumble control system.

      A01IE11C01
      *1 Mesh Type Gasket *2 VSV (For ACIS)
      *3 ACIS Valve *4 ACIS Valve Actuator
      *5 Tumble Control Valve *6 Intake Air Control Actuator (for Tumble Control System)

      Tech Tips

      Laser-welding: In laser-welding, a laser-absorbing material (intake manifold) is joined to a material that allows the laser light to pass through the ACIS valve actuator. Laser beams are then transmitted from the ACIS valve actuator side. The beams penetrate the ACIS valve actuator material to heat and melt the surface of the laser-absorbing material. Then, the heat of the laser-absorbing material melts the ACIS valve actuator material and causes both materials to become welded.