The following animations illustrate the processes that take place inside a four-stroke petrol engine.
The animation is suitable as a basic introduction to the functioning of four-stroke petrol engines.
Description of the animation
1. Intake: The valves open. The piston moves downwards. The vacuum fills the cylinder with air and fuel. Both components mix to form a fuel-air mixture.
2. Compression: The valves are closed. The piston moves upwards. This increases the pressure and temperature inside the combustion chamber.
3. Combustion: Shortly before the piston reaches the top dead centre, the fuel-air mixture is ignited by the spark plug. The fuel-air mixture burns from top to bottom. The flame front hits the piston and pushes it downwards.
4. Exhaust: The fuel-air mixture is completely burnt. The valves open again. The piston moves upwards. The combustion gases are expelled.
Requirements
| Platform | PC/Mac bzw. Tablet |
| Resolution(min) | 1280 x 720 |
Contributors
C. Hein, S. Rikowski
References
- Idea and initial concept: Tamara Riehle
- Technical drawing of the motor: based on Ulrich Rapp (http://www.ulrich-rapp.de/stoff/fahrzeug/motor/index.htm)
- Authoring tool: Adobe Animate
Further information
The GUI elements used in this animation are published under the MIT license: