Vapor recovery control system for direct injection spark ignition engines
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United States of America Patent
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Sep 14, 1999
Grant Date -
N/A
app pub date -
May 8, 1998
filing date -
May 8, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A vapor recovery control system for a direct injection spark ignition engine is used to purge vapors in both a homogeneous air/fuel and stratified air/fuel mode. When purging vapors in a stratified mode, a portion of the cylinders receive purge vapors and operate in a homogeneous mode while the rest of the cylinders continue to operate in a stratified mode.
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