Characteristics and principle of engine DVVT technology

Technical principle of DVVT: The continuously variable valve timing technology can improve the engine power and fuel economy by adjusting the valve closing timing according to the different working conditions of the engine. Everything with mass has inertia, and the air inhaled into the engine cylinder keeps the trend of entering the cylinder after the intake process. At this time, if the valve closing time is delayed, the cylinder can inhale more air, which can improve the volumetric efficiency. Therefore, the longer the valve closing time delay, the higher the performance at high speed; Conversely, the earlier the valve closes, the more stable the low-speed operation and the greater the torque.

Starting characteristics of DVVT variable valve timing;

Reduce the overlap of intake and exhaust to ensure stable combustion;

Reduce intake loss, improve fuel consumption and improve fuel economy by 24%;

Effectively improve the emissions of hydrocarbons and nitrogen oxides;

The engine power is stronger, and the power is increased by 12%.