what is engine power and how 4 stroke is more efficient than 2 stroke engine

Question

Accepted Answer

Engine power is the ability of an engine to do work. A 4-stroke engine is more efficient than a 2-stroke engine due to its better combustion process and reduced fuel consumption.

Engine power refers to the ability of an engine to produce work, typically measured in horsepower or kilowatts.
In a 4-stroke engine, the power is generated over four strokes of the piston: intake, compression, combustion, and exhaust.
The 4-stroke engine has a more efficient combustion process as it allows for separate intake and exhaust strokes, resulting in better fuel-air mixture and reduced fuel consumption.
On the other hand, a 2-stroke engine completes the power cycle in just two strokes: compression and combustion/exhaust. This leads to less efficient fuel combustion and higher fuel consumption.
The 4-stroke engine also provides better torque and power delivery throughout the RPM range compared to a 2-stroke engine.
Examples of 4-stroke engines include most automobile engines, while examples of 2-stroke engines include some small motorcycles, chainsaws, and outboard motors.

Accepted Answer

Four strokes are more efficient because there is separation of fuel and engine oil, as well as intake and exhaust gases, leading to less pollution, and better mileage.Four-stroke engines yield higher levels of torque at a lower RPM during operation.

what is engine power and how 4 stroke is more efficient than 2 stroke engine

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