Evaporated fuel processing device

摘要

An evaporated fuel processing device comprises a canister (1) including a canister case (2) defining an absorbent chamber (3), which accommodates an adsorbent material to temporarily collect fuel vapors, a tank port (4) for connecting to a fuel tank, a purge port (5) for connecting to an intake passage of fuel consuming device, buffer means (6) defined by an extending element of said canister case (2), said extending element being in communication with the adsorbent chamber (3) and one of either tank or purge port (4,5) being arranged in said extending element. According to the invention, the buffer means (6) are at least partially filled with adsorbent material so as to define a minimum path length through adsorbent material for said fuel vapors drawn from the fuel tank during purge operation. <IMAGE>