Fuel vapor managment valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 18, 2000
Grant Date -
N/A
app pub date -
Apr 27, 1999
filing date -
Apr 27, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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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