Patent ID: 9669707
Date: 2017-06-06
CPC Classifications: B01D,B60K

Claim:
1. A vertical shaft fuel tank cap with a charcoal canister, comprising: a fuel tank inner cap; a fuel tank outer cap, wherein a hollow cavity with an upper opening is disposed in a center of said fuel tank inner cap, said fuel tank outer cap covering said upper opening and being disposed above said fuel tank inner cap; a vent cap disposed in said hollow cavity and dividing said hollow cavity into a filling cavity and a containing cavity, said filling cavity being disposed above said containing cavity, said containing cavity having an air outlet in fluid connection with said containing room on a bottom of said containing room; and an air passageway connecting said containing cavity to said filling cavity and being disposed between outer walls of said vent cap and an inner wall of said containing cavity, said filling cavity containing a fuel-absorption substrate.