Patent ID: 11896949
Assignee: MAHLE INTERNATIONAL GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B  F | IPC B  F

Claim 0:
1. An adsorbent to be packed into a canister, the adsorbent at least comprising:
activated carbon; and
an additive material having a higher heat capacity than the activated carbon, the additive material being at least one of a phase change and a phase transition material to suppress temperature change in the activated carbon during purging of an adsorbed fuel,
wherein the adsorbent has first pores that are derived from the activated carbon and are less than 100 nm and second pores that are derived from meltable cores and are 1 μm or more,
wherein the adsorbent is in a form of a hollow molded body having an outer diameter of more than 6 mm and not more than 50 mm and in which respective parts have a thickness of not less than 0.2 mm and not more than 1 mm,
wherein the adsorbent has a volumetric specific heat of 0.08 kcal/L·° C. or more,
wherein the ratio of the volume of the second pores to the volume of the first pores is not less than 10% and not more than 200%, and
wherein the additive material is a metal oxide.