Describe four classification of internal combustion engine?

1. Spark Ignition Engine: This type of engine uses a spark plug to ignite the air-fuel mixture in the combustion chamber. It is commonly used in gasoline-powered vehicles and small engines.

2. Compression Ignition Engine: Also known as a diesel engine, this type of engine uses compression to ignite the air-fuel mixture in the combustion chamber. It is commonly used in heavy-duty vehicles, such as trucks and buses.

3. Two-Stroke Engine: This type of engine completes the four-stroke cycle in only two strokes of the piston (one upstroke and one downstroke). It is commonly used in small engines, such as those found in motorcycles, chainsaws, and outboard motors.

4. Four-Stroke Engine: This type of engine completes the four-stroke cycle in four strokes of the piston (intake, compression, power, and exhaust). It is commonly used in most modern vehicles, including cars, trucks, and motorcycles.

1. Engine Cycles

- Four-stroke cycle: Intake, compression, power, exhaust
- Two-stroke cycle: Intake, compression, power, exhaust

2. Fuel Type

- Gasoline: Used in spark ignition engines
- Diesel: Used in compression ignition engines
- Dual-fuel: Can use gasoline, diesel, or a combination

3. Ignition Type

- Spark ignition (SI): Fuel ignited by a spark plug
- Compression ignition (CI): Fuel ignited by compression

4. Configuration

- In-line: Cylinders arranged in a straight line
- V-type: Cylinders arranged in two banks, forming a "V" shape
- Radial: Cylinders arranged around a central crankshaft
- W-type: Hybrid of V-type and in-line configurations, with two banks of cylinders forming a "W" shape