Activated carbon canister

The key components in the fuel vapor control system include the fuel tank, vapor vent valves, vapor control valve, vapor tubing, the activated carbon canister, and the engine vapor management valve (VMV) [25,26], During normal vehicle operation, fuel tank vapor pressure is relieved through the use of vapor vent valves installed in the vapor dome of the fuel tank. The vent valves are designed to allow for the flow of fuel vapor from the tank, and to assure that liquid fuel does not pass through the valve. 

There are many other factors that can affect the performance and on-vehicle reliability of activated carbon canisters. The following items shown in Table 6 represent some of the more important factors that must be taken into consideration when designing an evaporative emission canister. 

The use of activated carbon canisters in the control of running loss evaporative emissions will be presented through the use of an example vehicle application. In this example, the vehicle to be studied is a representative standard size sedan equipped with a 3.0 liter, V6 engine and a 72 liter (18 gallon) fuel tank. The vehicle is assumed to have an evaporative emission control system similar to the one presented in Section 3. 

The complete set of curves in Fig. 19 show that the adsorption performance of the activated carbon canister is a continuous requirement, and not an occasional need... 

The design of activated carbon canisters for evaporative emission control is... 

Although such measures as catalytic converters and activated carbon canisters, which are used to help reduce geisoline fumes, have been somewhat effective, photochemic d smog still presents a problem. Until mankind develops an acceptable substitute for the internal combustion engine or requires mass transit, photochemical smog will remain with us for years to come. 

Perfluoroisobutylene (PFIB) is a very hazardous compound that is produced when fluoro-organic materials are produced or processed. PFIB causes pulmonary edema and thus activated carbon canisters have been prepared for protection against... 

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