Definition, Meaning & Synonyms

volumetric efficiency

noun

/ˌvɒl.jʊˈmɛt.rɪk ɪˈfɪʃ.ən.si/

Definition

Volumetric efficiency is a measure of the effectiveness with which an engine draws in the air-fuel mixture during the intake stroke relative to its displacement.

Examples

A high volumetric efficiency results in better engine performance.
Engine tuners strive to increase volumetric efficiency to maximize horsepower.
The volumetric efficiency of a naturally aspirated engine is typically lower than that of a turbocharged engine.