RESERVOIR AND VALVE ASSEMBLY OF A FUEL DELIVERY MODULE

摘要

A valve seal structure 20 seals an opening in a reservoir 10 ' of a fuel delivery module. The reservoir is constructed and arranged to be mounted with respect to a bottom of a fuel tank of a vehicle. The reservoir has wall structure 15 coupled with a bottom 14 to define an interior space 17. The bottom 14 has the opening 12 therein. The valve seal structure includes reservoir surface feature structure 22 disposed about a periphery of the opening 12 in the reservoir 10 ' and extending upwardly from the bottom 14 of the reservoir. A valve 24 is associated with the opening 12 and includes valve surface feature structure 28 extending towards the reservoir surface feature structure 22. A seal disk 26 is disposed between the reservoir surface feature structure 22 and the valve surface feature structure 28. The seal disk, under certain pressure conditions, permits fuel contained in the fuel tank to flow into the reservoir and, under pressure conditions different from the certain pressure conditions, prevents fuel in the reservoir from flowing back to the fuel tank via the at least one opening by defining a seal between the reservoir surface feature structure 22 and the valve surface feature structure 28.