gasoline engine
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Definition
Noun: 1. An internal combustion engine that uses gasoline as its fuel: A gasoline engine is a type of heat engine where fuel (gasoline) is mixed with air inside a cylinder, compressed by a piston, and ignited by a spark plug. The resulting combustion creates high-pressure gases that drive the piston, converting chemical energy into mechanical motion to power a vehicle or machine.
Examples of Usage
- Noun:
- The classic car is powered by a simple yet robust gasoline engine.
- Modern gasoline engines are designed to be more fuel-efficient and produce fewer emissions.
- Hybrid vehicles combine a gasoline engine with an electric motor.
Advanced Usage
- Technical Context: In engineering, the term specifies the fuel type and ignition method (spark-ignition), distinguishing it from diesel engines (compression-ignition).
- The efficiency of a gasoline engine is heavily influenced by its compression ratio and ignition timing.
Variants and Related Words
- Gas engine (n): A common, shortened synonym for "gasoline engine." (Note: In some regions, "gas" is short for "gasoline," not natural gas).
- Petrol engine (n): The British English equivalent term.
- Internal combustion engine (ICE) (n): The broader category to which gasoline engines belong.
- Spark-ignition engine (n): A technical term highlighting the ignition method used in gasoline engines.
Synonyms
- Petrol engine (UK English)
- Gas engine (informal, region-dependent)
Related Phrases
- Four-stroke gasoline engine: Specifies the most common thermodynamic cycle (intake, compression, power, exhaust) used in automotive engines.
- Nearly all modern cars use a four-stroke gasoline engine.
- Two-stroke gasoline engine: Specifies a different, often simpler cycle common in smaller machinery like chainsaws and mopeds.
- The lawn equipment is powered by a two-stroke gasoline engine.
Noun
- an internal-combustion engine that burns gasoline; most automobiles are driven by gasoline engines