期刊名称：Advances in Science and Technology Research Journal
印刷版ISSN：2080-4075
电子版ISSN：2299-8624
出版年度：2020
卷号：14
期号：4
页码：68-77
DOI：10.12913/22998624/123869
语种：English
出版社：Society of Polish Mechanical Engineers and Technicians
摘要：Despite the fact that more than a hundred years have passed since the first design of the compression ignition (CI)engine appeared, its optimal design has not yet been achieved. It is still the subject of constant modernisation inorder to meet the new expectations of users in terms of its dynamics, economy, and, in recent months, also ecology.The most effective fulfillment of these requirements is achieved through new solutions of the fuel supply systemand electronic control of injection and combustion processes. The publication includes the test results obtainedon the basis of two engines. One of them is the single-cylinder CI engine AVL5402, and the other one – a three-cylinder CI engine AD3.152. The first one is equipped with the Common Rail fuel supply system, electronicallycontrolled with the selenoid injector. The second engine has a CAV distributor fuel injection pump and traditional,mechanical controlled injectors. The paper demonstrates how these two different structural systems for supplyingand controlling engine parameters affect the selected indicators of the injection and combustion process. The influ-ence of diesel fuel (DF) and rapeseed oil (RO) feeding the engine in both different injection and control systemson the unrepeatibility of the injection pressure on the maximum combustion pressures in the engine cylinder and,consequently, non-uniformity of the crankshaft rotational movement of the engine were also pointed out. Thecontinuation of the research in this area seems to be expedient. They can be supplemented with statistical modelsof these phenomena. The results obtained in this way could be helpful in optimising the design of power supplysystems and engine combustion chambers.
关键词：diesel engine; Common Rail; fuel injection; unrepeatability; alternative fuels
