Stay tuned Toyota Nav-1 that will be present in the middle of this month, not to mention save a new engine technology in Indonesia, called Valvematic. In collaboration with Dual VVT-i, the system is made more optimal engine performance and efficiency. Hence, although using the same basic engine, eg 3ZR-FE in the Corolla Altis, as a differentiator, which had been taking Valvematic wear 3ZR-FAE engine code.
The difference is, if the Dual VVT-i set the intake valve timing and exhaust openings. Valvematic will help to regulate how much optimization of valve opening, of course, adapted to the needs of the machine. Whereas in conventional engines, though the timing is set by VVT-i, while the size of the valve opening is fixed.
Therefore, these two technologies have to work together. Later, the valve opening timing will be governed by the Dual VVT-i, is governed by the size of the valve opening Valvematic. Then, if the valve to the throttle?
Later, this valve will only function as a silencer of the intake. So Valvematic tech machines will be more quiet. Just imagine, even if the throttle is opened, but since the machine only needs less fuel, fuel flow entering certainly set again by opening the valve. Nah no more fuel that goes in vain or excess.
How it works, for example when idling stationary or rotating machine, the valve opens only 1 mm. Unlike when the engine is spinning fast, the valve can be opened up to 11 mm. So, even though the machine is efficient and economical, but if the driver wants to excessive force, just stepped on the gas pedal deeper, any engine will respond more quickly.
As a result, fuel consumption can be more efficient because the incoming gas flow very accurately to the needs of the machine, plus the exhaust emissions will be much cleaner. So, not only the pursuit of efficient engines, engine output will remain powerful with faster response.