comparison Between Four-Stroke Cycle Engine and Two Stroke Cycle Engine

Four-Stroke Cycle Engine:

• In this Turning movement is non-uniform, a Heavier flywheel is used.
• Initial stage cost is high.
• Volumetric efficiency is high due to Induction time is more.
• Small Power is produced for the same size as the engine to two-stroke.
• There is less in tear and wear. 
• It requires less lubrication system
• It requires less cooling system.
• Thermal efficiency is high in four strokes.
• Efficiency increases the use of the Four-stroke engine.
• This has valves.

Two Stroke Cycle Engine:

• Due to the uniform turning movement Lighter flywheel is used.
• Initial stage cost is Low.
• Due to Induction time is less Volumetric Efficiency is low.
• High power is produced for the same size of the engine.
• High in tear and wear rate.
• It requires high cooling system.
• It requires high Lubrication system.
• Less in thermal efficiency.
• It is used where there is less efficiency consider, like small vehicles.
• It has ports.

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