INTAKE SYSTEM


  1. CONSTRUCTION


    1. The intake air surge tank is made of plastic to achieve a lightweight construction.

    2. The air intake surge tank consists of upper and lower sections 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 engine performance in all speed ranges.

    3. The ACIS actuator is laser-welded onto the intake air surge tank. Many of the components are made of plastic for weight reduction.

      B002N2CC01
      *1 Intake Air Surge Tank Assembly *2 ACIS Actuator
      *a Laser-welding - -

      Tech Tips

      Laser-welding: In laser-welding, a laser-absorbing material (for the intake air chamber) 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.

    4. The intake air control valve, integrated in the intake air surge tank, opens and closes to change the effective length of the intake manifold in 2 stages.

    5. Equipped with an internal check valve, the vacuum tank stores the vacuum that is applied to the actuator in order to keep the intake air control valve fully closed even during low-vacuum conditions.

      B002N6EC01
      *1 Intake Air Control Valve Actuator *2 Vacuum Tank