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公开(公告)号：US08753424B2
公开(公告)日：2014-06-17
申请号：US14049045
申请日：2013-10-08
IPC分类号： B01D46/44
CPC分类号： G01M3/04 , F02M25/0818 , F02M25/089
摘要： An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.
摘要翻译： 提供一种排放控制系统，其包括燃料箱，碳氢化合物过滤器元件和联接在碳氢化合物过滤元件和大气之间的三通阀。 三通阀由三个端口，净化端口，参考端口和密封端口组成，并且能够识别排放控制系统的劣化。 阀上的端口配置使得能够简化测试方法，从而减少由各种操作位置之间的过渡引起的背景错误。
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公开(公告)号：US20140033802A1
公开(公告)日：2014-02-06
申请号：US14049045
申请日：2013-10-08
IPC分类号： G01M3/04
CPC分类号： G01M3/04 , F02M25/0818 , F02M25/089
摘要： An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.
摘要翻译： 提供一种排放控制系统，其包括燃料箱，碳氢化合物过滤器元件和联接在碳氢化合物过滤元件和大气之间的三通阀。 三通阀由三个端口，净化端口，参考端口和密封端口组成，并且能够识别排放控制系统的劣化。 阀上的端口配置使得能够简化测试方法，从而减少由各种操作位置之间的过渡引起的背景错误。
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公开(公告)号：US09353708B2
公开(公告)日：2016-05-31
申请号：US14643897
申请日：2015-03-10
发明人： Aed Mohammad Dudar , Robert Roy Jentz , Timothy DeBastos , James Michael Kerns , Michael Igor Kluzner
CPC分类号： F02M25/0809 , F02D41/003 , F02D41/0032 , G01M15/09 , Y10T137/0379 , Y10T137/7722
摘要： Methods and systems are provided for monitoring a fuel vapor recovery system including a fuel tank isolation valve coupled between a fuel tank and a canister. During selected conditions, the valve is modulated and pressure pulsations in the fuel vapor recovery system are monitored. Valve degradation is identified based on correlations between the valve modulation and the resultant pressure pulsations.
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公开(公告)号：US20150184620A1
公开(公告)日：2015-07-02
申请号：US14643897
申请日：2015-03-10
发明人： Aed Mohammad Dudar , Robert Roy Jentz , Timothy DeBastos , James Michael Kerns , Michael Igor Kluzner
CPC分类号： F02M25/0809 , F02D41/003 , F02D41/0032 , G01M15/09 , Y10T137/0379 , Y10T137/7722
摘要： Methods and systems are provided for monitoring a fuel vapor recovery system including a fuel tank isolation valve coupled between a fuel tank and a canister. During selected conditions, the valve is modulated and pressure pulsations in the fuel vapor recovery system are monitored. Valve degradation is identified based on correlations between the valve modulation and the resultant pressure pulsations.
摘要翻译： 提供了用于监测燃料蒸气回收系统的方法和系统，其包括联接在燃料箱和罐之间的燃料箱隔离阀。 在选定的条件下，调节阀门并监测燃油蒸气回收系统中的压力脉动。 基于阀调节和合成压力脉动之间的相关性来识别阀门劣化。
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