1. İsmail ALTIN, PhD Assistant Professor Karadeniz Technical University Faculty of Marine Sciences Department of Naval Architecture and Marine Engineering TURKEY Karadeniz Technical University Faculty of Marine Sciences Department of Naval Architecture and Marine Engineering TURKEY KARADENİZ TECHNICAL UNIVERSITY Personal web page: www.ismailaltin.info

2. Working of Internal Combustion Engines

3. 1.Introduction to internal combustion engines (ICEs) 2.Main engine components 3.Working of four-stroke engines 4.Working of two-stroke engines 5.Working of Wankel engines 6.Indicating diagrams 7.Animations of ICEs Contents

4. 1. Introduction to internal combustion engines The internal combustion engine (ICE) is a heat engine that converts chemical energy stored in a fuel into mechanical energy, usually made available on a rotating output shaft.

5. 1. Introduction to internal combustion engines…

7. The cylinder volume at any crank position Instantanenous piston speed Mean piston speed

8. 2. Main engine components Engine block

9. 2. Main engine components… Cylinder head

10. 2. Main engine components… Injector

11. 2. Main engine components… Cylinder

12. 2. Main engine components… Piston

13. 2. Main engine components… Connecting rod

14. 2. Main engine components… Crosshead

15. 2. Main engine components… Crankshaft flywheel

16. 2. Main engine components… Flywheel

17. 2. Main engine components… Camshaft

18. 2. Main engine components… Valvetrain

19. 2. Main engine components… Valvetrain-valve

20. 2. Main engine components… Valvetrain…

21. 2. Main engine components… Valvetrain…

22. 2. Main engine components… Valvetrain…

23. 2. Main engine components… Turbocharger

24. exhaust intake 3. Working of four-stroke engines

25. 2-stroke Reed Valve intake 4. Working of two-stroke engines

26. intakeexhaust +: No valves needed Continuous motion  less vibration -: Leaks through seals  low compression ratio  pollution (high levels of HC and CO) 5. Working of Wankel engines

27. 6. Indicating diagrams

28. 6. Indicating diagrams…