Fuel vapor treatment canister
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United States of America Patent
Stats
-
Jan 7, 2003
Grant Date -
Aug 23, 2001
app pub date -
Dec 26, 2000
filing date -
Dec 28, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A fuel vapor treatment canister is described. The canister includes a casing having first and second end walls between which an inside space is formed. The first end wall has a first opening in communication with a fuel tank, and a second opening in communication with an air intake passage of an engine. The second end wall has a third opening in communication with the atmosphere. The inside space includes first and second chambers. The first chamber is located closer to the first end wall than the second chamber. A first fuel vapor adsorbing material is disposed in the first chamber. A second fuel vapor adsorbing material and a heat-accumulative material are disposed in the second chamber. The heat-accumulative material is larger in specific heat than the second fuel vapor adsorbing material.
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