YouTube
Aviation Training Systems

2-Stroke Engines

A 2-stroke engine burns a mixture of air, petrol and oil to drive a piston and rotate a crankshaft.

 

Unlike a 4-stroke engine, a 2-stroke engine fires on every revolution of the crankshaft and performs all the functions of a 4-stroke engine (induction, compression, combustion and exhaust) using only a combustion and a compression stroke.

 

How Does a 2-Stroke Engine Work?

A 2-stroke engine fires on every revolution of the crankshaft and performs all the functions of a 4-stroke engine using only 2 strokes (a combustion and a compression stroke).

It does this by inducting the fuel mixture into the crankcase towards the end of the compression (upward) stroke and releasing the exhaust gases towards the end of the combustion (downward) stroke.

A transfer port allows the fuel mixture in the crankcase to escape around to the top of the piston where it purges the main cylinder of exhaust gases before being finally compressed by the upward moving piston.

Controls

Use the controls on the left to clearly view the working cycle of a 2-stroke engine.

Press the upper PLAY button to play or pause and use the lower STEP button to step through the animation one frame at a time!.

 

More Animations

If you are an instructor and you need animation like this for your school, why not contact us for a cost-effective quotation. A range of ready made training material is available for purchase online via our products list.

For more information on other types of internal combustion engines see:

 

 

For more information on instrument trainers or training material for specific systems, click on the links below:

.