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 improve the engine performance in all engine speed ranges.

    3. The ACIS 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.

    4. The tumble control valve is provided in the intake manifold. The tumble control valve is activated by the tumble control system.*

    5. A DC motor type intake air control actuator is provided for the tumble control system.*

      *: Models with tumble control system

      B00233OC01
      *A Models without Tumble Control System *B Models with Tumble Control System
      *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 (for the intake manifold) is joined to a laser-transmitting material (for the ACIS actuator). Laser beams are then irradiated from the laser-transmitting side. The beams penetrate the laser-transmitting material to heat and melt the surface of the laser-absorbing material. Then, the heat of the laser-absorbing material melts the laser-transmitting material and causes both materials to become welded.