Vehicle fuel tank contains compensating volume in which lower and upper valves are mounted to bleed vapor from tank when specific pressure is exceeded due to rocking of tank, release pressure of upper valve being less than that of lower

摘要

The vehicle fuel tank contains a compensating volume (1) in which a lower (10a) and upper (10b) valve are mounted. These bleed fuel vapor from the tank when a specific pressure is exceeded due to rocking of the tank, the release pressure of the upper valve being less than that of the lower valve.