Patent ID: 8992673
Filing Date: 2015-03-31
Classification: B01D,F02M

Abstract:
1. An evaporated fuel treatment apparatus comprising an atmospheric port side and at least one adsorption chamber, the one adsorption chamber at the atmospheric port side and filled with a first adsorbent and a second adsorbent that adsorb and desorb a fuel component of evaporated fuel, wherein the first adsorbent and second adsorbent are mixed together in the one adsorption chamber, wherein the first adsorbent has a higher pore volume than the second adsorbent with respect to effective pores that effectively adsorb and desorb a low-boiling fuel component, and the first adsorbent has a lower pore volume than the second adsorbent with respect to pores smaller than the effective pores and having higher adsorbability and lower desorbability on butane than the effective pores.