Open AccessDetermining the criteria and the degree of the stratification of the air-fuel charge in a cylinder of a spark-ignition engine during injecting fuel
Author(s) -
Volodymyr Korohodskyi,
А. А. Воронков,
Vasiliy Migal,
І. Н. Нікітченко,
E Y Evgeny Zenkin,
Volodymyr Rublov,
N. V. Rudenko
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/977/1/012002
Subject(s) - stratification (seeds) , ignition system , spark ignition engine , spark (programming language) , engine knocking , combustion , fuel injection , air–fuel ratio , environmental science , cylinder , automotive engineering , homogeneous charge compression ignition , brake specific fuel consumption , nuclear engineering , internal combustion engine , mechanics , mechanical engineering , engineering , combustion chamber , chemistry , computer science , physics , aerospace engineering , biology , germination , programming language , seed dormancy , botany , organic chemistry , dormancy
In internal combustion engines with spark ignition and the direct fuel injection, the indicators are offered to evaluate the organization of the working process in the form of a criterion for the stratification of the air-fuel charge and the degree of stratification of the air-fuel mixture. Using the experimental data of a two-stroke engine with spark ignition and the direct injection of fuel with load characteristics, the values of the excess air coefficient in a cylinder and in the volume of the air-fuel mixture are determined. A comparative assessment of the suggested indicators in the organization of the workflow with the stratification of depleted fuel-air charge is presented. It has been defined that a more promising way of organizing the workflow to improve the fuel and economic performance of a spark ignition engine is organizing the fuel injection with the stratification of a depleted air-fuel charge.