Introduction to 4-Stroke Engines
A 4-stroke engine is an internal combustion engine that completes a cycle in four strokes: intake, compression, power, and exhaust. It is known for its efficiency and durability, making it widely used in vehicles and industrial machines.
The Four Strokes of a 4-Stroke Engine
- Intake Stroke: Mixture of air and fuel enters the cylinder.
- Compression Stroke: The mixture is compressed by the piston.
- Power Stroke: Spark plug ignites the mixture, generating energy.
- Exhaust Stroke: Burnt gases are expelled.
Components of a 4-Stroke Engine
- Piston: Moves within the cylinder, converting combustion energy into mechanical motion.
- Crankshaft: Transfers motion to the drivetrain.
- Valves: Control the flow of air and fuel.
- Spark Plug: Ignites the air-fuel mixture.
Advantages and Applications
Advantages:
- Higher fuel efficiency.
- Cleaner emissions.
- Increased durability.
Applications:
- Automobiles, motorcycles, generators, and marine engines.