Air-Fuel Mixture
air-fuel mixture
[′er ′fyül ‚miks·chər] (mechanical engineering)
In a carbureted gasoline engine, the charge of air and fuel that is mixed in the appropriate ratio in the carburetor and subsequently fed into the combustion chamber.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Air-Fuel Mixture
the mixture of vaporized fuel and air entering the cylinders of internal combustion engines or formed within them, together with residual gases. The products from the combustion of the air-fuel mixture constitute the working substance for converting the thermal energy of the burned fuel into mechanical work. The basic parameter characterizing the mass composition of the air-fuel mixture is the coefficient of excess air α = L/L0, where L is the actual amount of air in the air-fuel mixture (in kg) and L0 is the amount of air theoretically required for complete combustion of the fuel in the air-fuel mixture (in kg). An air-fuel mixture with α < 1 is called rich, and one with α > 1 is called lean.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.