Improved fuel vapor management valve

Details Improved fuel vapor management valve Improved fuel vapor management valve

B - Operations, Transporting

60

K

B60K 15/035 (2006.01) F02M 25/08 (2006.01) F02M 33/04 (2006.01) F16K 24/04 (2006.01)

Patent

CA 2303746

An electrically controlled vacuum operated fuel vapor canister purge valve having a regulator valve subassembly with a vacuum signal chamber on one side of a pressure responsive power diaphragm which moves a regulator valve obturator for controlling flow from a vapor inlet passage to a vapor outlet passage for connection to an engine inlet. The vacuum signal chamber has a vacuum signal connection port and a recess or well with an atmospheric vent port and resiliently deflectable locking tab. A solenoid operated atmospheric bleed valve has a boss with a restrictor outlet which is quick- connected and seated in the well for electrically controlling vent flow into the vacuum signal chamber. The restrictor limits atmospheric bleed flow to attenuate the effects of sudden changes in the vacuum signal.

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