Patent ID: 7784637

Claim:
A multi-piece axial seal used between a fuel delivery module and a fuel tank wall, comprising: an annular outer member when uncompressed having a generally C-shaped cross-section with a pair of axially spaced apart opposed ends an inner channel defined by the inner surface of the outer member, the inner channel opening generally radially between the opposed ends, the outer member composed of a permeation-resistant elastomeric material having an outer surface defining a first sealing surface adjacent one of the ends against the fuel delivery module and a generally opposed second sealing surface adjacent the other of the ends against the fuel tank wall, and within the channel a pair of generally axially opposed annular projections extending into the channel; and an annular inner member with a body disposed at least partly within the channel of the outer member, having a pair of generally opposed recesses each complementarily engaged with a respective one of the projections in the channel of the outer member and a pair of lobes extending out of the channel, axially spaced apart and each engaging a respective one of the ends of the outer member, one lobe having an outer surface defining a third sealing surface against the fuel delivery module and spaced from the first sealing surface, the other lobe having an outer surface defining a fourth sealing surface against the fuel tank wall and spaced from the second sealing surface; and the body including the lobes of the body being in one piece and composed of another permeation-resistant elastomeric material.