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Combustion Engines

Code:

TGA13

Sigla:

MC

Áreas Científicas
Classificação	Área Científica
CNAEF	Construction and repair of motor vehicles

Ocorrência: 2021/2022 - 1S

Ativa?	Yes
Unidade Responsável:	Departamento de Engenharia Mecânica
Curso/CE Responsável:

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
TSPTGA	17	Plano de Estudos_2015_16	2	-	6	60	162

Língua de trabalho

Portuguese

Objetivos

This course aims to equip students with theoretical and practical knowledge based on the operation, constitution and repair of Internal Combustion Engines (MCI) and their different organs and systems, through the knowledge transmitted and direct contact with the equipment and parts that make up, as well as through researching information in the literature and the Internet.

Resultados de aprendizagem e competências

The UC aims to provide students with detailed knowledge about the constitution and functioning of the different systems and mechanisms that make up an Internal Combustion Engines (MCI) engine, through theoretical and practical knowledge transmitted and direct contact with the equipment. Students should know how to identify the different systems/mechanisms/parts, their characteristic failures and their causes.

Modo de trabalho

Presencial

Pré-requisitos (conhecimentos prévios) e co-requisitos (conhecimentos simultâneos)

As prerequisites, students must have knowledge of secondary school physics.

Programa

I - ENGINE THEORY

1. Introduction. Function of Internal Combustion Engines. Evolution and types of existing combustion engines.

2. Operating Principles of Combustion Engines

3. Basics about combustion
• Fuels,


4. Internal Combustion Engines (MCI) - Duty Cycle
•Engine times.
• Operating principle of 4-stroke and two-stroke engines
• Understanding the formation of the mixture (in different types of Engines)
• Notions about combustion and heat release and work production

5. Effective Motor Duty Cycle Parameters.

•Power, Binary, Yield. characteristic curves


II - GENERAL CONSTRUCTION (STRUCTURE) OF THE ENGINES

1. Main characteristics and particularities of the engines

2. Crank mechanism and connecting rod
•Engine block
• Group of cylinders and pistons
• Crank and connecting rod group
• Defects in the crank and connecting rod mechanism

3. Gas distribution mechanism
• Schema and operation of different gas distribution mechanisms
• Decompression mechanism
• Faults in the gas distribution mechanism and their resolution

4. Feeding system
• General notions about the feeding system
• Gasoline engine power systems
• Diesel engine power systems
• Power system malfunctions and their resolution

5. Cooling system
• Classification of cooling systems
• Structure of the components of the liquid cooling system
• Structure of air cooling system components
• Technical maintenance, cooling system malfunctions and their resolution

6. Lubrication system
• General structure and operating principles
• Structure of the component parts of the lubrication system
Technical Maintenance, Lubrication System malfunctions and their resolution

8. Engine management
•Operating principles
•Electronic control unit
•Sensors and actuators

Bibliografia Obrigatória

Alexandre Magrinho; Folhas de apoio à UC

Métodos de ensino e atividades de aprendizagem

Use of the expository-interrogative method, leading students to reach conclusions.
Students have direct contact with the laboratory equipment, to understand its constitution and functioning, through observation and general description of the organs and their functioning, and to prepare the reports, other available resources are also used (literature, Internet, etc.) for information search.

Tipo de avaliação

Distributed evaluation without final exam

Componentes de Avaliação

Designation	Peso (%)
Trabalho escrito	40,00
Trabalho laboratorial	60,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Trabalho escrito	40,00
Trabalho laboratorial	60,00
Total:	100,00

Obtenção de frequência

Fórmula de cálculo da classificação final

NF=0,5xTL + 0,5xT