evaporative control system

evaporative control system

[i¦vap·ə‚rād·iv kən′trōl ‚sis·təm]
(mechanical engineering)
A motor vehicle system that prevents escape of gasoline vapors from the fuel tank or carburetor to the atmosphere while the engine is not operating.
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References in periodicals archive ?
Evaporative control system components such as vapor canisters and lines.
Catalytic converter, -- Exhaust gas recirculation (EGR) valve, -- Positive crankcase ventilation (PCV) valve, -- Fuel inlet restrictor, -- Air pump, and -- Evaporative control system components such as vapor canisters and lines.