Revolution in Gasoline Engines

Nissan has introduced a new engine technology that is considered revolutionary for gasoline engines and can maintain their superiority in transportation for years. According to Reuters, Nissan has designed a new engine with variable compression ratio that will soon be used for the first time in the Infiniti brand, a subsidiary of Nissan. This new engine poses a challenge to diesel engines. Currently, due to the scandal involving some major automakers including Volkswagen, there are many uncertainties regarding diesel engines. Infiniti is Nissan's luxury brand. The main shares of Nissan are held by the Renault group in France, and it is likely that these engines will soon be significantly used within the Renault-Nissan group, with this technology also penetrating other automakers. According to Reuters, this new engine utilizes variable compression ratio (VCT) technology. Nissan engineers state that this technology allows the engine to use the appropriate compression ratio for combustion at any moment. This is a key factor in choosing between power and efficiency in all gasoline engines. This technology enables new engines to have the performance of turbocharged gasoline engines while simultaneously benefiting from the power and fuel efficiency of diesel vehicles. Until now, gasoline engines have not been able to reach this level of performance and efficiency. One of the main advantages of diesel engines over gasoline ones is their higher efficiency, which results in lower fuel consumption compared to gasoline engines. However, diesel engines have a worse status in terms of producing certain pollutants, including nitrogen oxides, compared to gasoline engines. It has now been established that diesel cars pollute the environment much more than previously stated. Data from several research institutions and NGOs indicate that Volkswagen committed a major environmental fraud. Some of the company's vehicles produced nitrogen oxides up to 15 times higher than the U.S. emissions standards, while Volkswagen engineers designed the cars to meet the standard during pollution tests. Further research revealed that this issue is not limited to Volkswagen vehicles, and many major automakers worldwide are facing this problem. Kenichi Tamura, Nissan's chief engineer responsible for developing the Infiniti brand, states: 'Diesel engines are a hot global topic. However, we believe our new engine is the pinnacle of gasoline engines that will eventually replace current diesel engines.' According to Auto Express, the Renault-Nissan company intends to place the first gasoline supercharger engine on a mass-produced vehicle, and there is speculation that these engines will significantly reduce reliance on diesel engines. It is said that this advanced two-liter turbocharged engine offers the performance of a V6 engine with much better fuel efficiency and is recognized as the most advanced internal combustion engine ever built. Nissan will unveil this engine at the Paris Motor Show next month. Infiniti will be the first brand in the Renault-Nissan group to use this new engine, intending to replace the existing 3.5-liter V6 engine in its vehicles with this four-cylinder engine. Downsizing engines and using direct fuel injection technology, along with variable compression ratio, are strategies that will continue to allow gasoline engines to be widely used in vehicles. Currently, one of the mid-term strategies in the global automotive industry to reduce fuel consumption and pollutant gases is the use of small engines. However, small engines depend on very new fuel injection and compression technologies, which only a few companies in the world possess such knowledge. Some countries have chosen hybrid (electric-gasoline) vehicles as a mid-term solution. The long-term solution for the global automotive industry is the use of hydrogen fuel in vehicles. So far, only Toyota has succeeded in using hydrogen fuel commercially in a limited model. This vehicle can travel 502 kilometers on a full hydrogen tank. The electric motor of this vehicle has a power of 152 horsepower. In this vehicle, hydrogen stored in tanks at 70 megapascals (700 times atmospheric pressure) moves to the fuel cell unit, where hydrogen mixes with oxygen from the air, producing water and electricity as a result of this reaction. The electricity is used by the electric motor to move the vehicle, and the water is expelled from the vehicle's exhaust. However, many analysts believe that over the next 50 years, electric motors will gradually replace internal combustion engines like gasoline engines, whether these motors draw their energy from rechargeable batteries or whether the electric energy for these motors is supplied by fuel cells using hydrogen.