Efforts on Fuel Economy Improvement of 1.3 L TGDI Gasoline Engine

摘要

The Geely GETEC engine family is a key element of Geely's global blueprint for sustainable development. The members with higher performance and efficiency in the family will replace preceding larger displacement naturally aspirated (NA) petrol engines in a very wide range of vehicle applications, to meet increasingly stringent legislations around the world. It will give the customers significantly improved fuel economy and emissions without compromising driving performance feel, comfort and unaffordable cost. The combination of turbo charging, gasoline direct injection and dual variable valve timing (VVT) represents the state-of-the-art of modern gasoline engine [1]. It is widely accepted that engine downsizing in combination with pressure charging (primarily turbocharging) and direct fuel injection is the most appropriate and synergistic technology to simultaneously meet future requirements and achieve customer satisfaction. Recently in the market it is apparent that a continuously growing number of applications are using downsizing as a crucial step in the CO_2 emission reduction strategy [2].