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公开(公告)号:US09109550B2
公开(公告)日:2015-08-18
申请号:US13441743
申请日:2012-04-06
申请人: David Kempf , Adam Nelligan , Brian Smith , Joseph Wesorick , Amar Shah
发明人: David Kempf , Adam Nelligan , Brian Smith , Joseph Wesorick , Amar Shah
CPC分类号: F02M25/0836 , F02B33/00 , F02D41/0007 , F02D41/0032 , F02D2200/0406 , F02M25/089
摘要: Methods and systems for fuel vapor canister purging in boosted engines are described. In one example, vapors are purged from the canister into an engine intake passage downstream of a throttle via an ejector during vacuum conditions, whereas during boost conditions, vapors are purged from the canister into an upstream inlet of a compressor via the ejector, the compressor arranged in the intake passage upstream of the throttle.
摘要翻译: 描述了用于增压发动机中燃料蒸汽罐吹扫的方法和系统。 在一个实例中,蒸汽在真空条件期间经由喷射器从罐排出到发动机进气通道下游,而在升压条件期间,蒸汽通过喷射器从罐排出到压缩机的上游入口,压缩机 布置在进气通道上游的油门。
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公开(公告)号:US20130263590A1
公开(公告)日:2013-10-10
申请号:US13441743
申请日:2012-04-06
申请人: David Kempf , Adam Nelligan , Brian Smith , Joseph Wesorick , Amar Shah
发明人: David Kempf , Adam Nelligan , Brian Smith , Joseph Wesorick , Amar Shah
CPC分类号: F02M25/0836 , F02B33/00 , F02D41/0007 , F02D41/0032 , F02D2200/0406 , F02M25/089
摘要: Methods and systems for fuel vapor canister purging in boosted engines are described. In one example, vapors are purged from the canister into an engine intake passage downstream of a throttle via an ejector during vacuum conditions, whereas during boost conditions, vapors are purged from the canister into an upstream inlet of a compressor via the ejector, the compressor arranged in the intake passage upstream of the throttle.
摘要翻译: 描述了用于增压发动机中燃料蒸汽罐吹扫的方法和系统。 在一个实例中,蒸汽在真空条件期间经由喷射器从罐排出到发动机进气通道下游,而在升压条件期间,蒸汽通过喷射器从罐排出到压缩机的上游入口,压缩机 布置在进气通道上游的油门。
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