Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1990-08-17
1991-08-06
Miller, Carl S.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123516, 220 85VR, F02M 3302
Patent
active
050368230
ABSTRACT:
A vapor storage canister protection system that prevents tank overfill and prevents canister contamination when the vehicle tilts significantly from the horizontal, using a single valve to perform both the overfill and tilt protection shut off functions. A series of switches sensitive to when vehicle is being filled block the canister vent line at the end of fill, and then reopen after a short, timed duration or when the vehicle is restarted.
REFERENCES:
patent: 3778024 (1973-12-01), Rogerson
patent: 4756328 (1988-07-01), Sherwood
patent: 4811718 (1989-03-01), Sonoda
patent: 4815436 (1989-03-01), Sasaki
patent: 4860715 (1989-08-01), Hiraku
patent: 4872439 (1989-10-01), Sonoda
patent: 4903672 (1990-02-01), MacKinnon
patent: 4958655 (1990-09-01), Danek
General Motors Corporation
Griffin Patrick M.
Miller Carl S.
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