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1. Optimize Fuel Combustion Efficiency to Reduce Energy Consumption of Small-Displacement Engines

Aligned with the Renault 1.6 engine’s design goal of "economy orientation," this VVT gear optimizes fuel efficiency in the following ways:

·It precisely controls the valve opening and closing timing, creating stronger turbulence of the air-fuel mixture in the cylinders to promote uniform mixing. This reduces local over-rich or over-lean conditions and minimizes fuel waste caused by incomplete combustion.

·During medium-to-low speed cruising (e.g., 60-90 km/h on urban expressways), it reduces pumping losses by narrowing the valve overlap angle, increasing the engine’s thermal efficiency by 3%-5%. This directly translates to lower fuel consumption per 100 kilometers (tests show it can reduce fuel consumption by 0.8-1.2 L compared to non-VVT versions).

2. Synergize with the Exhaust System to Reduce Emissions of Small-Displacement Engines

The Renault 1.6 engine needs to meet strict emission regulations such as Euro 6 and China 6b. This gear achieves emission reduction through:

·Adjusting the exhaust valve timing to match the operating temperature of the three-way catalytic converter (ensuring the exhaust temperature remains within the optimal catalytic reaction range of 350-450℃), improving the conversion efficiency of CO, HC, and NOₓ.

·Controlling the amount of exhaust gas recirculation (EGR) during the valve overlap phase to lower the combustion temperature, thereby suppressing NOₓ formation. This reduces the concentration of pollutant emissions by more than 20% compared to traditional timing systems.