1 to improve fuel economy.
DVVT bidirectional continuously variable valve timing control system automatically adjusts the opening and closing timing of intake valve and exhaust valve according to different working conditions of the engine, thus improving the power performance and fuel economy of the engine. (VVT engines can only adjust the intake valve).
2. International suppliers
The core components come from international suppliers of General Motors, which are absolutely reliable. DVVT camshaft sprocket suppliers come from Hailida International Group, such as GM, Volkswagen, Ford, BMW, Audi, Mercedes-Benz, Ferrari, Chrysler and Bugatti.
3, more fuel efficient
Acceleration is stronger, more fuel-efficient, and more suitable for any road conditions and energy-saving performance. Greater torque output at medium and low speeds; It is more powerful to start faster in the urban area. Output more power at high speed; Driving at high speed will give you more power to overtake. More complete combustion, less harmful gas emission, more energy saving and more environmental protection.
The disadvantage of dvvt engine is its high price.
1, expensive
Technical engines are generally more expensive, because it is normal for technologically advanced engines to be more expensive, but this is also a normal phenomenon. After all, the box improves the performance of the car and can only improve the performance of the engine. Personally, I think the engine of dvvt is still worth buying, and the failure rate of the engine is also very low, which is within the controllable range.
Characteristics of Dvvt engine:
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%.
The engine is the heart of a car. Today, with the emphasis on energy conservation and environmental protection, our requirements for automobile engines are simply to achieve maximum power and torque output with the least amount of oil, and to be stable, continuous and reliable with low emission added value.
Roewe 550 1.8LDVVT has attracted much attention since it was put on the market, precisely because it adopts the most advanced DVVT (Dual Ariable Valvetiming) technology, which can boost power and reduce fuel consumption when necessary.