Low actuating force canister purge valve

摘要

A canister purge valve (1) for an internal combustion engine; the canister purge valve (1) is provided with: a housing (8) having a supply channel (9) which connects a fuel vapor inlet port (5) to a fuel vapor outlet port (6); a valve seat (10) obtained across the supply channel (9); a valve shutter (11) which has a through pressure compensating channel and is movably mounted within the supply channel (9) in order to move from an open position, in which the valve shutter (11) is distant from the valve seat (10), to a closed position, in which the valve shutter (11) is pressed against the valve seat (10); and a rigid stem (18) which is mechanically coupled to the valve shutter (11) in order to move the valve shutter (11) from the open position to the closed position, and seals the pressure compensating channel (19) in the closed position.