Ignition timing control apparatus for engine
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United States of America Patent
Stats
-
Feb 2, 1993
Grant Date -
N/A
app pub date -
Oct 11, 1991
filing date -
Oct 31, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an engine including an exhaust gas recirculation mechanism for recirculating exhaust gas to the engine intake system, and an ignition timing control apparatus for the engine, a duty-controlled EGR rate regulating solenoid valve is disposed in an EGR passage which intercommunicates the exhaust and intake passages of the engine. An arrangement is provided for controlling the activation of the ignition timing control apparatus in order to adjust the ignition timing in accordance with a duty rate applied to the EGR rate regulating solenoid valve.
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