air-fuel

Engine intake blend

Air-fuel describes the mixture of air and combustible fuel that powers internal combustion engines.

The ratio between these two components—how much air relative to how much fuel—is critical for efficient combustion.

A lean air-fuel mixture has more air than the ideal ratio, while a rich mixture has more fuel.

Mechanics and engineers adjust air-fuel ratios to optimize performance, fuel economy, and emissions.

ratio

lean

Lacking fat; incline

  • richHaving much of something
  • mixtureCombined but unbonded substances
  • lambdaEleventh Greek letter

combustion · optimal · metering · sensor · wideband · narrowband · calibration · tuning · efficiency · equivalence

systems

carburetor

Engine fuel-air mixer

manifold · electronic · mechanical · port · direct · sequential · multipoint · atomization · spray · delivery

combustion

ignition

Starting combustion process

knock · misfire · cylinder · chamber · explosion · oxidation · spark · timing · power · stroke

tuning

remap

Assign new locations

chip · calibration · enrichment · leaning · adjustment · map · table · target · correction · trim

Opposites
combustion stage

air-fuelexhaust

Use up entirely

emissions · tailpipe emissions

mixture composition

air-fuelpure air

Uncontaminated breathable gas

oxygen-free · inert gas

Family

air, fuel, airs, aired, airing, airy, airless, airship, aircraft

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G