What does a DVVT engine mean?
2 Answers
DVVT engine refers to the variable valve timing technology for both intake and exhaust valves. The function of an engine is to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, causing the gas to expand and push the piston to perform work. The main components of an engine include: the engine block, crankshaft and connecting rod mechanism, valve train and intake/exhaust system, fuel supply system and governor, starting device, cooling system, and lubrication system. Methods for engine maintenance include: 1. Using qualified engine oil; 2. Using qualified coolant and antifreeze; 3. Regularly cleaning the radiator scale; 4. Regularly removing engine carbon deposits; 5. Regularly replacing the three filters (air, oil, and fuel filters); 6. Maintaining a reasonable engine speed.
As a car enthusiast, I think DVVT engine is actually the abbreviation of Dual Variable Valve Timing technology. Simply put, it can adjust the opening and closing timing of the engine's intake and exhaust valves in real time according to your driving speed, just like installing an automatic thermostat for your car. At low speeds, it can open the valves in advance to increase low-end torque, making the start more powerful and less prone to shaking; during high-speed cruising, it delays closing the valves to ensure more complete combustion, thereby saving fuel and reducing exhaust emissions. This technology is more flexible than single variable VVT. Now many brands such as Toyota and Honda have adopted similar systems, which can make your car's overall performance smoother and quieter. Remember to check the control system during maintenance to avoid aging and failure. Although it is not omnipotent, if you often drive in city traffic jams or on long highway trips, DVVT can really help improve your car's efficiency and lifespan significantly.
