公开(公告)号：US5441031A

公开(公告)日：1995-08-15

申请号：US63573

申请日：1993-05-19

申请人： Takashi Kiyomiya ,  Takeshi Suzuki ,  Hideo Watanabe ,  Shoji Takahashi ,  Kazumi Yamazaki ,  Masashi Takezawa ,  Shigeki Baba ,  Kenichi Sawada ,  Shouji Sekiai ,  Hideki Kaseyama ,  Hiroshi Kitagawa

发明人： Takashi Kiyomiya ,  Takeshi Suzuki ,  Hideo Watanabe ,  Shoji Takahashi ,  Kazumi Yamazaki ,  Masashi Takezawa ,  Shigeki Baba ,  Kenichi Sawada ,  Shouji Sekiai ,  Hideki Kaseyama ,  Hiroshi Kitagawa

IPC分类号： F02M25/08 ,  F02D41/22

CPC分类号： F02M25/08 ,  Y10T137/3099

摘要： A vent passage communicated to an upper space of a fuel tank mounted on an automobile is connected to a canister. A two-way valve, which includes a pair of one-way valves disposed oppositely and in parallel to each other, is provided in the vent passage. One one-way valve is adjusted its valve opening pressure in a two-staged manner according to the operational state of an internal combustion engine. In another method, a bypass passage bypassing the two-way valve is provided in the vent passage. A solenoid valve and a one-way valve are interposed in the bypass passage. The above one one-way valve of the two-way valve is set at a first valve opening set-up pressure, and the other one-way valve is set at a second valve opening set-up pressure lower than the first valve opening set-up pressure. The solenoid valve is opened or closed according to the operational state of the internal combustion engine.

摘要翻译： 连通到安装在汽车上的燃料箱的上部空间的排气通道与罐连接。 包括一对相对并排设置的一对单向阀的二通阀设置在排气通道中。 一个单向阀根据内燃机的运行状态以两级方式调节其开阀压力。 在另一种方法中，在通气通道中设置旁路双通阀的旁路通路。 旁通通路中插入有电磁阀和单向阀。 上述开闭阀的一个单向阀被设定在第一阀开启设定压力，另一个单向阀被设定在低于第一阀开度组的第二阀开启设定压力 压力。 电磁阀根据内燃机的运行状态而打开或关闭。