Purge flow regulator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 28, 1990
Grant Date -
N/A
app pub date -
Jun 29, 1989
filing date -
Jun 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Hydrocarbon fuel vapors that are collected in a canister are periodically purged to the intake manifold through a purge valve that comprises a variable orifice valve portion and a flow regulator valve portion in series with each other. The variable orifice portion sets an orifice in inverse proportion to manifold vacuum. The flow regulator portion controls the flow in accordance with a signal from the engine E.C.U.
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Cited Art Landscape
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