Dongfeng has officially certified a new 2.0-liter turbocharged engine for hybrid vehicles. The main feature of the novelty is the declared thermal efficiency of 45.5%, which puts the power unit among the most efficient mass-produced internal combustion engines on the market.
For a conventional car, a significant part of the fuel energy is lost as heat. That is why the thermal efficiency indicator is considered one of the key criteria for engine efficiency. The higher the value, the more energy is converted into motion, and not dissipated in vain.
The new engine is designed specifically for hybrid power plants. The 2.0-liter engine is equipped with a turbocharger and is designed to operate as part of modern electrified systems, where the internal combustion engine functions most of the time in the most efficient speed range.
A few years ago, an efficiency of about 40% was considered an outstanding result for a mass-produced gasoline engine. Then Chinese manufacturers began to actively compete for this indicator. Today, the best hybrid engines from Geely, BYD, Chery, and GWM have already surpassed the 44–46% mark, turning efficiency into one of the main competitive tools.
The emergence of a new unit shows that the struggle for ICE efficiency is far from over. While many companies are betting exclusively on electric vehicles, Chinese manufacturers continue to improve hybrid technologies, achieving results that were recently considered unattainable.