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.

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.

References in periodicals archive ?
Direct gas injection, despite the apparent advantages, poses critical challenges in obtaining adequate control of air-fuel mixture quality when a NG DI combustion system is to be designed, mainly as a result of the fuel being constantly in gaseous state with low mass density [10,11,12].
The O2 sensor monitors the gases emitted by the vehicle engine thereby maintaining the appropriate air-fuel mixture to facilitate efficient functioning of the engine in accordance to the emission regulatory norms.
At the level D feedback corrects air-fuel mixture composition by analyzing the oxygen content in the purified EG to ensure effective cleaning.
Helical ramp' to induce ultra-high speed vortex of air-fuel mixture in auxiliary combustion chamber
Infiniti's engine neatly sidesteps the problem of 'knocking', a process of inefficiency which can occur in higher compression ratio engines when the air-fuel mixture combusts prematurely in the cylinder, potentially resulting in damage to the engine.
In addition, fuels with higher ratings are a few percentage points denser, which allows more power per litre in the vehicle," Mathai explained, adding that engine experts are of the view that using a low octane fuel when your car requires a higher version is just as damaging and will lead to an abnormal combustion of the air-fuel mixture in the cylinder.
This is due to the higher oxygen content in the air-fuel mixture enhances the oxidation of unburned hydrocarbons.
The automotive spark plug is a device designed to fit in each cylinder of a gasoline-powered internal-combustion engine to produce the electric spark for ignition of the air-fuel mixture.
What is more, in case of alkylate petrol, a bigger amount of fuel (E100) has distilled at 100 [degrees]C, which leads to the assumption that in case of alkylate petrol, the evaporation of the air-fuel mixture happens at lower temperatures, the engine warms more quickly and runs more stably.
The parts are used in a sensor kit that measures the inlet pressure of the air-fuel mixture in each cylinder of a passenger car engine.
The smell of rotten eggs could indicate a plugged or damaged catalytic converter or an air-fuel mixture with not enough air.
The ratio of precompression volume to postcompression volume for an air-fuel mixture stands at 14.