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Diurnal Breathing Loss Canister Module System and Composition Method for Low Emission Vehicle-II Regulation in California USA
Diurnal Breathing Loss Canister Module System and Composition Method for Low Emission Vehicle-II Regulation in California USA
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机译:美国加利福尼亚低排放车辆II法规的昼间呼吸损失滤罐模块系统和组成方法
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摘要
PURPOSE: A constructing method of a DBL(Diurnal Breathing Loss) control canister module system is provided to cut down expenses and improve fuel efficiency by regulating DBL and preventing evaporative gas of fuel corresponding to exhaust gas regulation. CONSTITUTION: Hydrocarbon is discharged through a large canister(1), and collected to a DBL control canister(2). Activated carbon is filled in the DBL control canister with the volume of 250-1000CC. A canister close valve(3) is connected between the DBL control canister and an air filter(4) to detect leakage of gas, and air is purified with the air filter. The DBL control canister is fixed with a bolt and a nut(17), or integrally formed in the large canister to prevent from being separated against impact and vibration. Gas is evaporated with increasing temperature of fuel in a tank, and evaporative gas is adsorbed in activated carbon of the canister. Evaporative hydrocarbon is adsorbed in the activated carbon of the DBL control canister, and burned with recycling to the engine by negative pressure of the engine. Fuel efficiency is improved with regulating exhaust gas.
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