188.8.131.52. ACIS (Acoustic management of system of an admission)
Fig. 2.212. Scheme of the ACIS system: 1 – executive mechanism; 2 – the operating valve of system of change of phases of gas distribution; 3 – to the smoothing receiver; 4 – vacuum valve; 5 – vacuum tank; 6 – engine electronic control unit; 7 – frequencies
For realization of management of system of an admission in an inlet collector the partition (see fig. 2.212) dividing a collector into 2 cameras is established. In a partition there is an operating valve of air of an admission which opening and closing it is possible to change the effective length of an inlet collector according to the angle of opening of a butterfly valve and frequency of rotation of the engine. This system increases engine capacity in all ranges of working frequencies.