公开(公告)号：US20020189711A1

公开(公告)日：2002-12-19

申请号：US10166392

申请日：2002-06-11

Applicant: Piolax Inc.

Inventor： Kenji Yonezawa ,  Hiroki Isobe

IPC: B65B001/04

CPC classification number: B60K15/04 ,  Y10T137/86372

Abstract: A non-return valve includes a main tube to be externally inserted into and joined to a fuel filling pipe, and a valve element to be provided on a downstream end of the main tube for allowing fuel to flow into a fuel tank and inhibiting a back flow out of the fuel tank. On an upstream side of the main tube, provided is a first inner tube including a first retaining portion relevant to the fuel filling pipe, an annular sealing member abutting on an inner periphery of the main tube and on an outer periphery of the fuel filling pipe, and a second inner pipe disposed more upstream than the first inner tube so as to sandwich the annular sealing member together with the first inner tube, the second inner tube including a second retaining portion relevant to the main tube.

Abstract translation: 止回阀包括外部插入并连接到燃料填充管的主管，以及设置在主管的下游端的阀元件，用于允许燃料流入燃料箱并阻止后部 流出燃油箱。 在主管的上游侧，设置有第一内管，其包括与燃料填充管相关的第一保持部，邻接于主管的内周的环状密封构件和燃料填充管的外周 以及设置在比第一内管更上游的第二内管，以便与第一内管一起夹住环形密封构件，第二内管包括与主管相关的第二保持部。