초록

A two fill level system uses a valve within the tank interior having a pair of different height venting inlets to the vent pipe, with a fuel level responsive seal at one inlet and a temperature responsive seal at the other inlet.

대표청구항 ▼

In a vehicle fuel tank of the type having a vent pipe for venting said tank as it is filled, a temperature responsive valve for providing two different fuel fill levels in said tank, said valve comprising, a pair of inlets opening to said vent pipe at different levels within said tank, a fuel level

In a vehicle fuel tank of the type having a vent pipe for venting said tank as it is filled, a temperature responsive valve for providing two different fuel fill levels in said tank, said valve comprising, a pair of inlets opening to said vent pipe at different levels within said tank, a fuel level responsive seal for closing off one of said inlets when fuel reaches the level of said first inlet, and, a temperature responsive seal for closing off the other of said inlets when the temperature in said tank is beyond a predetermined threshold, whereby, the fuel level may be selectively switched from the level of one of said inlets to the other by allowing tank venting to occur until fuel reaches the level of one inlet or the other depending on whether the tank temperature is beyond said threshold.