How a 2 Stroke Engine Works and Explanation of the Principles of a 2 Stroke Motor

 

The way a two stroke engine or two stroke motor works is fairly simple. Because, in the combustion process, it only takes two steps to move the piston, the device that acts as the core of the motor engine.

The 2-stroke engine was invented in 1859 by French scientist, Etiene Lenoir. This technology has been popular in Indonesia since a number of 2-stroke motorbike products were marketed by Japanese manufacturers to Indonesia in the 1970s. Until the end of the 1990s, the best-selling motorbikes on the Indonesian market were dominated by iron horses with 2-stroke engines.

When a motorbike engine is running, 4 processes occur, namely suction (intake), compression (compression), explosion (power), and exhaust (exhaust) in one combustion cycle. In a 2-stroke engine, these four processes take place in 1 rotation of the crankshaft (crankshaft). So, when these 4 processes occur, the piston moves twice, namely up and down. When the piston moves upwards (called Stroke 1), the process of suction and explosion occurs, and then in Stroke 2, when the piston moves downwards, the process of compression and exhaustion occurs. 2-stroke engines tend to be smaller and lighter than 4-stroke engines, so the power to weight ratio is better than 4-stroke engines. Therefore, the acceleration of a motorbike with a 2-stroke engine is better than a 4-stroke engine.

Working Principle of a 2 Stroke Motor (2 Stroke) 

The principle and structure of a 2-stroke combustion engine is different from a 4-stroke engine. The striking difference is when the fuel is injected, the lubrication system for the cylinder and piston, the cylinder head and the exhaust gas channels are also different from a 4-stroke combustion engine.

The principle and structure of a 2-stroke combustion engine is different from a 4-stroke engine. The striking difference is when the fuel is injected, the lubrication system for the cylinder and piston, the cylinder head and the exhaust gas channels are also different from a 4-stroke combustion engine.

When the piston is at the top or top dead center (TDC), combustion occurs because the gasoline vapor is greeted by sparks from the spark plug. Then the piston is at top or TDC, below it the inlet hole is open. New gasoline gas from the carburetor then enters the combustion chamber.

2. The second step, namely when the piston descends from TDC, the combustion exhaust hole opens, which is followed by the rinse channel hole. Apart from that, on 2-stroke combustion motorbikes there is also a valve which functions as an intake valve and a holding valve for the fuel and air mixture in the crank chamber. The valve in the crank chamber of a 2-stroke combustion engine will open when the piston moves from BDC to TDC and closes when the piston moves from TDC to BDC. The definition of valve itself is a part of the engine that functions as a channel cover from the crank chamber to the intake channel. So the mixture of fuel and air in the crankcase l will rise up through the flush channel to help remove exhaust gases, as well as enter a mixture of fuel and fresh air into the cylinder space above the piston. If it is not equipped with a valve or valves in the crank chamber, it is possible that the 2-stroke engine will not be able to work.