Current situation and looking-forward advancement of internal combustion engine

Abstract

With a history of over 100 years, the internal combustion engine has undergone continuous technological advancements, making it widely utilized in various sectors such as industry, agriculture, and transportation. This is due to its high thermal efficiency and broad power range. However, the rapid growth of the global economy has led to a significant increase in the number of internal combustion engines, resulting in heightened energy consumption and environmental pollution concerns. Consequently, new technical requirements have been imposed on internal combustion engines. One key focus for researchers in this field has been improving the fuel economy of internal combustion engines. Through relentless efforts, remarkable progress has been made in producing economy cars with fuel consumption as low as 3 liters per 100 Km. Additionally, the growing demand for environmental protection has sparked increased attention toward reducing harmful emissions from internal combustion engines, which has become a topic of shared concern. In this article, the researcher will delve into the developmental journey of traditional internal combustion engines and explore the advantages and disadvantages of each engine type.