FUEL SUPPLYING DEVICE

摘要

A fuel tank supplying device includes: a fuel tank that can accommodate fuel at an interior; a circulation flow path that is connected to an interior of the fuel tank and a fuel refueling port side, and that circulates evaporated fuel vapor that is within the fuel tank to the fuel refueling port side; a variable valve that is provided on the circulation flow path, and adjusts a circulated amount of the evaporated fuel vapor; and air-passage flow path inner diameter changing means that is provided at the variable valve, and that is for changing an inner diameter of a air-passage flow path, through which the evaporated fuel vapor flows, in accordance with internal pressure of the fuel tank, and that, when the internal pressure of the fuel tank is equal to or greater than a predetermined value, makes the inner diameter of the air-passage flow path smaller.

主权项

1. A fuel supplying device comprising:
a fuel tank that can accommodate fuel at an interior thereof; a circulation flow path that is connected to the interior of the fuel tank and to a fuel refueling port side, and that circulates evaporated fuel vapor that is within the fuel tank to the fuel refueling port side; a variable valve that is provided at the circulation flow path, and that adjusts a circulated amount of the evaporated fuel vapor; and an air-passage flow path inner diameter changing means that is provided at the variable valve, and that is for changing an inner diameter of an air-passage flow path, through which the evaporated fuel vapor flows, in accordance with an internal pressure of the fuel tank, and that, when the internal pressure of the fuel tank is equal to or greater than a predetermined value, makes the inner diameter of the air-passage flow path smaller.