air-fuel ratio

(redirected from Af ratio)

air-fuel ratio

[′er ′fyül ‚rā·shō]
(chemistry)
The ratio of air to fuel by weight or volume which is significant for proper oxidative combustion of the fuel.

air-fuel ratio

The ratio of the volume (or weight) of air being furnished for combustion to the volume (or weight) of the fuel.
References in periodicals archive ?
These structural changes may explain why AF ratio is high in old patients in our series.
Not included in OU's AF ratios are assets of various legally separate but related 501(c)(3) organizations and state agencies which hold most of OU's endowment.
175 billion, resulting in stronger AF ratios relative to expenses (224%) and pro forma debt (181%).