Activated carbon and evaporative fuel treatment apparatus...

Details Activated carbon and evaporative fuel treatment apparatus... Activated carbon and evaporative fuel treatment apparatus...

2007-12-11

2007-12-11

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

C123S516000

Reexamination Certificate

active

11472390

ABSTRACT:
An activated carbon adsorbing and desorbing evaporative fuel has pores formed therein with the following rates: a rate of a pore whose pore diameter is smaller than or equal to 20 Å in which butane is apt to remain with respect to a pore whose pore diameter is smaller than or equal to 100 Å is less than or equal to 20%, and a rate of a pore whose pore diameter is greater than 20 Å and smaller than or equal to 25 Å that is effective in adsorbing low boiling point gas components with respect to the pore whose pore diameter is smaller than or equal to 100 Å is between 15 and 25%. An evaporative fuel treatment apparatus has a filling chamber filled with the activated carbon as an adsorbent.

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patent: 2002-256989 (2002-09-01), None

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