Check valve for use in filler tube vapor recirculation system and method of making same

摘要

A check valve assembly is designed for insertion in an existing fuel tank filler tube having a mechanical nozzle seal and a vapor recirculation port. The insert (26) has an integrally formed ground strap/tab (32) for grounding a refueling nozzle and an attached flexible flapper (36) positioned adjacent the recirculation port by an integrally formed spring tab (30). The insert (26) has friction tabs for engaging the inner surface of the filler tube for retaining the check valve assembly in the filler tube.