Fig. 2.216. The scheme of operation of the operating admission valve in situation "is open"

The electronic control unit of the engine switches off VSV for reduction of duration of a cycle of a pulsation, at the same time the diaphragm of the executive mechanism is affected by atmospheric air, and the operating valve opens. When the operating valve is open, the effective length of a vpuksny collector decreases and peak efficiency of an admission is displaced to the area of high turns of the engine, thus providing big power in this area.