Study of the various factors influencing deposit formation and operation of gasoline engine injection systems

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Stepien, Z.^1

Oil and Gas Institute, National Research Institute, Lubicz 25 A, Krakow

31-503, Poland^1

关键词: Detergent dispersant;    Ethanol gasoline blend;    Fuel injection systems;    Greenhouse gases emissions;    Operation conditions;    Renewable products;    Simulation studies;    Technical challenges;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012052/pdf
DOI  :  10.1088/1757-899X/148/1/012052

来源: IOP

【 摘 要 】

Generally, ethanol fuel emits less pollutants than gasoline, it is completely renewable product and has the potential to reduce greenhouse gases emission but, at the same time can present a multitude of technical challenges to engine operation conditions including creation of very adverse engine deposits. These deposits increasing fuel consumption and cause higher exhaust emissions as well as poor performance in drivability. This paper describes results of research and determination the various factors influencing injector deposits build-up of ethanol-gasoline blends operated engine. The relationship between ethanol-gasoline fuel blends composition, their treatment, engine construction as well as its operation conditions and fuel injectors deposit formation has been investigated. Simulation studies of the deposit formation endanger proper functioning of fuel injection system were carried out at dynamometer engine testing. As a result various, important factors influencing the deposit creation process and speed formation were determined. The ability to control of injector deposits by multifunctional detergent-dispersant additives package fit for ethanol-gasoline blends requirements was also investigated.