Definition, Meaning & Synonyms

compression-stroke

Noun

/kəmˈprɛʃən stroʊk/

Definition

The phase in a reciprocating engine where the piston compresses the fuel-air mixture in the cylinder before ignition.

Examples

During the compression-stroke, the engine prepares for ignition.
The efficiency of an engine can be significantly affected by the length of the compression-stroke.
Not all engines have the same compression-stroke; this can vary based on design.

Meaning

Compression-stroke refers to the action of the piston moving up within the cylinder, reducing the volume of the gas mixture, leading to increased pressure and temperature, which is essential for efficient combustion.