Fuel vapor storage canister
Patent
·
OSTI ID:6707069
A storage canister is described of the type that receives a mixture of liquid fuel, fuel vapor and air vented from a vehicle fuel tank, and in which the fuel vapor component of the mixture is stored to be later purged by vehicle engine vacuum, comprising: a generally cylindrical canister housing, a bed of fuel vapor adsorbent material located within the housing and having an upper and lower face, vent means opening from atmospheric through the top of the housing to the upper face of the absorbent bed, a shell enclosing the bottom of the housing to form a plenum beneath the adsorbent bed lower face and having a central low area that provides a central reservoir with an area substantially smaller than the lower face, a central fill-purge tube means connected both to the fuel tank and to vehicle engine vacuum and extending through the adsorbent bed lower face to an opening located centrally within the plenum and near the bottom of the reservoir.
- Assignee:
- General Motors Corp., Detroit, MI
- Patent Number(s):
- US 4750465
- OSTI ID:
- 6707069
- Country of Publication:
- United States
- Language:
- English
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