Ethanol - Gasoline Flexible Proportion Of Electronically Controlled Engine Performance

Energy conservation and environmental protection are two principals of current automobile industry. Using ethanol as the fuel of engine can alleviate the pressure of the petroleum resources. It also can reduce the pollution of the environment. So, many research departments in local and foreign countries are focus on ethanol engines.In this paper, the research on performance and emission characteristics of an EFI engine using ethanol blended gasoline fuels has been investigated. To utilize the advantages of ethanol combustion, the original fuel supply system is modified so that the blended ratio between ethanol and gasoline can be flexibly adjusted according to different engine operation conditions. With the test results from engine dynamometer, it indicates that those engine modifications, particularly the ethanol/gasoline ratio flexibly adjusted system, have a great effect on engine performance and emissions. The results show that the system can increase engine power and reduce the pollution emission at the same time.This paper had summarized the process and the result of electronic control flexible ethanol/gasoline ratio engine performance test, and had looked forward to the research work in the future.