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1. 发明授权

US08955559B2 Fuel vapor handling system for automotive fuel tank 有权
标题翻译：汽车燃油箱燃油蒸汽处理系统
公开(公告)号：US08955559B2
公开(公告)日：2015-02-17
申请号：US13642023
申请日：2011-03-29
申请人： Kenichi Hatakeyama , Toshiaki Miyagawa , Osamu Fujiyama
发明人： Kenichi Hatakeyama , Toshiaki Miyagawa , Osamu Fujiyama
IPC分类号： B60K15/035 , F02M25/08 , F02M37/00
CPC分类号： F02M25/089 , B60K15/03504 , F02M37/0076
摘要： Fuel vapor is prevented from leaking to the outside during refueling, and even when an air space is formed in an upper portion of a fuel filler pipe, a diagnosis of leakage of fuel vapor can be performed with good accuracy. During refueling, fuel vapor is guided from a fuel tank 1 to a canister 3, and is absorbed by the canister 3. A change in the internal pressure of a fuel vapor path including the fuel tank 1, a fuel vapor pipe 4, and the canister 3 is detected by a pressure sensor 8, thereby performing a diagnosis of leakage of fuel vapor. An upper space 16 in the fuel tank 1 and an upper space 17 in a fuel filler pipe 2 communicate with each other through an airflow resistance pipe 12, and in order to restrict flow of fuel vapor from the fuel tank 1 through the airflow resistance pipe 12 into the fuel filler pipe 2 during refueling, the airflow resistance pipe 12 includes an orifice 13.
摘要翻译：在加油期间，燃料蒸汽被防止泄漏到外部，即使当在燃料加注管的上部形成空气空间时，也可以高精度地进行燃料蒸气泄漏的诊断。在加油期间，燃料蒸气从燃料箱1引导到罐3，并被罐3吸收。包括燃料箱1，燃料蒸气管4和燃料蒸气管4的燃料蒸气路径的内部压力的变化罐3由压力传感器8检测，从而进行燃料蒸气泄漏的诊断。燃料箱1中的上部空间16和燃料加注管2的上部空间17通过气流阻力管12相互连通，为了通过气流阻力管限制来自燃料箱1的燃料蒸气的流动 12在加油期间进入加油管2，气流阻力管12包括孔13。

2. 发明申请

US20130032243A1 FUEL VAPOR HANDLING SYSTEM FOR AUTOMOTIVE FUEL TANK 有权
标题翻译：汽油机燃油蒸汽处理系统
公开(公告)号：US20130032243A1
公开(公告)日：2013-02-07
申请号：US13642023
申请日：2011-03-29
申请人： Kenichi Hatakeyama , Toshiaki Miyagawa , Osamu Fujiyama
发明人： Kenichi Hatakeyama , Toshiaki Miyagawa , Osamu Fujiyama
IPC分类号： B65B31/00
CPC分类号： F02M25/089 , B60K15/03504 , F02M37/0076
摘要： Fuel vapor is prevented from leaking to the outside during refueling, and even when an air space is formed in an upper portion of a fuel filler pipe, a diagnosis of leakage of fuel vapor can be performed with good accuracy.During refueling, fuel vapor is guided from a fuel tank 1 to a canister 3, and is absorbed by the canister 3. A change in the internal pressure of a fuel vapor path including the fuel tank 1, a fuel vapor pipe 4, and the canister 3 is detected by a pressure sensor 8, thereby performing a diagnosis of leakage of fuel vapor. An upper space 16 in the fuel tank 1 and an upper space 17 in a fuel filler pipe 2 communicate with each other through an airflow resistance pipe 12, and in order to restrict flow of fuel vapor from the fuel tank 1 through the airflow resistance pipe 12 into the fuel filler pipe 2 during refueling, the airflow resistance pipe 12 includes an orifice 13.
摘要翻译：在加油期间，燃料蒸汽被防止泄漏到外部，即使当在燃料加注管的上部形成空气空间时，也可以高精度地进行燃料蒸气泄漏的诊断。在加油期间，燃料蒸气从燃料箱1引导到罐3，并被罐3吸收。包括燃料箱1，燃料蒸气管4和燃料蒸气管4的燃料蒸气路径的内部压力的变化罐3由压力传感器8检测，从而进行燃料蒸气泄漏的诊断。燃料箱1中的上部空间16和燃料加注管2中的上部空间17通过气流阻力管12相互连通，为了通过气流阻力管限制来自燃料箱1的燃料蒸气的流动 12在加油期间进入加油管2，气流阻力管12包括孔13。

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