ECTS credits: 6
Gaining basic knowledge of the theory and construction of internal combustion engines.
Introductory and basic definitions. Historical development. General structure of engines. Basic definitions of engines. Engine properties. Classification of engines. Definition of a modern engine. Theory of engines. Thermodynamic cycles in engines: Otto, Diesel, Sabathe cycles. Actual engine operating cycles. Principle and actual operating cycle of four-stroke Otto and Diesel engines. Combustion in Otto and Diesel engines. Principle and actual operating cycle in two-stroke Otto and Diesel engines. Distribution scheme in four- and two-stroke engines. Engine features. Definitions. Indicator diagrams. Work, specific work of a cycle and indicated mean pressure. Calculation of indicated and effective power of four-stroke Otto and Diesel engines. Measuring of engine effective power. Diagrams of engine features. Degrees of engine usefulness. Thermal balance of engines. Engine structure. Basic parts of an engine. Piston mechanism. Distribution mechanism. Systems in Otto and Diesel engines: fuel system, ignition system in Otto engines, lubrication system, cooling system, starting system, exhaust system. Engine precharging - compression engines. Basic concepts of multicombustible engines and gas turbines.
Knowledge and skills necessary for individual calculation of basic engine parameters and making diagrams of external properties. Knowledge and skills necessary for an individual analysis of engine structural performance with the aim of relevant comparisons of several designs, according to the complexity of performance, originality of the solution, access to systems and devices, durability, cost-effectiveness of exploitation and environmental acceptability. Knowledge and skills necessary for individual judgement of parameter values in terms of their acceptability, partial acceptability or unacceptability in all modes of engine operation. Knowledge and skills necessary for individual development of recommendations for cost-effective and efficient modes of operation, and acceptable ecology in relation to the structure of engines during their exploitation. Knowledge and skills necessary for giving proposals during the development of engine maintenance schedule, from the aspect of their design.
Having passed the exam, the student will be able to: 1. Draw and calculate parameters of basic thermodynamic cycles of an engine 2. Calculate and measure the values of power, torque and specific fuel consumption under full-load regime, draw and compare diagrams – a full throttle power curve in Otto and Diesel engines. 3. Analyse significant impacts on the engine operation, their systems and devices with the aim of achieving acceptable cost-effectiveness, thermal balance and environmental acceptability. 4. Draw and define block diagrams of systems, devices and mechanisms. 5. Analyse the impact of engine operating regimes on the structural functionality 6. Analyse operating conditions and the functionality of basic parts, systems, devices and mechanisms of an engine. 7. Apply the acquired knowledge and skills in solving the issues in vehicle engine maintenance. These learning outcomes contribute to the following outcomes of the study programme of motor vehicle maintenance: - Explain the physical parameters of motor vehicle construction. - Analyse the properties and performances of motor vehicles. - Explain the working principles for the assemblies and devices in motor vehicles. - Recognise the need for lifelong learning and using broader literature in motor vehicle maintenance.