Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1993-05-10
1994-03-01
Cross, E. Rolins
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
25112905, 137599, F02M 3302
Patent
active
052898113
ABSTRACT:
A purge control device for an evaporative control system comprises a single housing having two solenoid actuated valves controlling parallel orifices leading from an inlet chamber to an exit flow path. The two solenoid valves have different sized orifices to provide different flow capacities. Purge flow is controlled by an electronic control module which regulates the duty cycle of the solenoids. Each valve receives its own signal so that the flow through the orifices is individually controlled.
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Covert Charles H.
Fornuto Joseph
Gifford William E.
Muller-Girard, Jr. Otto
Paddock Gordon R.
Cross E. Rolins
General Motors Corporation
Moulis Thomas N.
Veenstra Charles K.
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