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GENERAL VALVE VALVE FOR VACUUM ACTUATOR AT LOW LOADS OF ENGINE AND VACUUM OF PURGE OF FUEL VAPORS WHEN FORCING ENGINE
GENERAL VALVE VALVE FOR VACUUM ACTUATOR AT LOW LOADS OF ENGINE AND VACUUM OF PURGE OF FUEL VAPORS WHEN FORCING ENGINE
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机译:发动机低负荷时的真空执行器通用阀和推动发动机时燃油蒸气的抽吸真空
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摘要
Methods and systems are provided for generating vacuum via an ejector arranged in a compressor recirculation flow path and an aspirator arranged in a throttle bypass path, where a suction port of the ejector is coupled with a canister purge valve having two outlet ports. In one example, the canister purge valve may include only a single flow restriction, the flow restriction arranged in a path coupling a fuel vapor purge system with the intake manifold when a solenoid of canister purge valve is open, such that a path coupling the fuel vapor purge system with the suction port of the ejector does not include any flow restrictions upstream of the suction port.
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