Fuel vapor storage canister

摘要

The canister (10) has a leak-proof screen assembly (64) between a mass of carbon granules in the storage canister and a purge port of the storage canister. It has a cup-shaped plastic body (12), an integral partition (16) which divides the canister body into a pair of deep carbon bed chambers (18A-B), and a plenum (26) in the canister body at an end of one of the carbon bed chambers which is connected to the purge port (62) and which is covered by the leak-proof screen assembly. The leak-proof screen assembly includes a plastic frame ultrasonically welded to the canister body and a flat fabric screen having a peripheral edge insert moulded to the plastic frame.