Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1977-10-03
1979-01-16
Croyle, Carlton R.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
261DIG67, F02M 3700
Patent
active
041343786
ABSTRACT:
As part of an evaporative emission control system for an automotive vehicle, the fuel bowl of the carburetor for the internal combustion engine of the vehicle is provided with an internal vent passage for venting fuel vapor from the fuel bowl to the air cleaner, for example, for induction through the induction passage in the carburetor for flow to the engine during engine operation and, with an external vent passage for venting fuel vapor from the fuel bowl to a vapor storage canister when the engine is not in operation, as during hot soak, the internal vent passage having a cross sectional flow area at least two times larger than the minimum cross sectional flow area of the external vent passage whereby changes in pressure at the canister will tend to result in air cleaner depression changes with minimal differential pressures between the carburetor fuel bowl and air cleaner.
REFERENCES:
patent: 2839154 (1958-06-01), Sterner
patent: 3352294 (1967-11-01), Biller et al.
patent: 3460522 (1969-08-01), Kittler et al.
patent: 3515107 (1970-06-01), Joyce
patent: 3575152 (1971-04-01), Wentworth
patent: 3683597 (1972-08-01), Beveridge et al.
patent: 3759234 (1973-09-01), Buckton et al.
patent: 3782351 (1974-01-01), Rogerson
patent: 3852381 (1974-12-01), Mick
patent: 3884204 (1975-05-01), Krautwurst
patent: 4016848 (1977-04-01), Nagai
patent: 4086897 (1978-05-01), Tamura
Croyle Carlton R.
General Motors Corporation
Krein Arthur N.
Smith Leonard E.
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