Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1991-06-07
1992-06-09
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123516, 55387, F02M 3302
Patent
active
051197910
ABSTRACT:
A vapor storage canister incorporates a liquid trap that protects the carbon bed, but which avoids purging liquid directly out of the trap. The trap consists of a cup that forms an interior cavity at the bottom of, and surrounded by, the carbon bed. The purge tube does not enter the trap directly, but instead runs to a plenum that draws from the bottom face of the carbon bed. The trap, in turn, is open to the interior of the carbon bed only through a screen mesh grid. Consequently, vapor can be pulled from the trap at purge, but not liquid.
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Covert Charles H.
Gifford William E.
Girard, Jr. Otto M.
Paddock Gordon R.
Simons, Jr. Richard H.
Argenbright Tony M.
General Motors Corporation
Griffin Patrick M.
Moulis Thomas N.
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