2-Stroke Engines
|
Site Search: |
|
|
2-Stroke Engines |
|
|
Induction and final compression during the upward stroke of the piston in a 2-stroke engine. |
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. 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. The screen shot on the left is from an interactive animation that clearly demonstrates the working cycle of a 2-stroke engine. Controls enable the instructor or student to play, pause, loop, step forward or step backward a frame, zoom in or out and even print. You can purchase this product online now by visiting our products list or, for more information, contact us. For more information on other types of internal combustion engines see: |
