The difference between two-stroke and four-stroke engine cycle lies in the movement of the crankshaft and piston. In the article, let us learn more differences between them.
What is a Two-Stroke Engine?
A two-stroke engine is an engine that completes a power cycle with two strokes of the piston during only one crankshaft revolution.
What is a Four-Stroke Engine?
A four-stroke engine is an internal combustion engine in which the piston completes four separate strokes while turning the crankshaft.
Two-Stroke vs Four-Stroke
|It has one revolution of the crankshaft during one power stroke||It has two revolutions of the crankshaft during one power stroke|
|It generates high torque||It generates less torque|
|Its uses port for fuel’s outlet and inlet||It uses valves for outlet and inlet of a fuel|
|Its engines result in lesser thermal efficiency||Its engines result in higher thermal efficiency|
|It has a larger ratio in terms of power to weight||It has a lesser ratio in terms of power to weight|
|It generates more smoke and shows less efficiency||It generates less smoke and shows more efficiency|
|Requires more lubricating oil as some oil burns with the fuel||Requires less lubricating oil|
|Due to poor lubrication, more wear and tear occurs||Less wear and tear occurs|
|Engines are cheaper and are simple for manufacturing||Engines are expensive due to lubrication and valves and are tough to manufacture|
|Engines are basically lighter and are noisy||Engines are basically heavier because its flywheel is heavy and are less noisy|
These were some two strokes and four stroke differences. If you wish to learn out more related concepts, download BYJU’S The Learning App.