Internal-combustion engines – Precombustion and main combustion chambers in series – Plural precombustion chambers
Patent
1992-09-28
1993-06-29
Nelli, Raymond A.
Internal-combustion engines
Precombustion and main combustion chambers in series
Plural precombustion chambers
123DIG7, 123266, 123268, F02B 1900
Patent
active
052229939
ABSTRACT:
A water-cooled, spark-ignited, natural gas burning engine that includes an improved ignition system having a pair of precombustion chambers located in series connected by an orifice from the first chamber into the combustion chamber of the engine whereby a relatively rich fuel/air mixture, ignited in the second prechamber, propagates a flame through an orifice into the first chamber wherein a leaner fuel/air mixture from the combustion chamber is plasma ignited which in turn creates a larger flame that is projected through an orifice into the main combustion chamber for plasma igniting a lean fuel/air mixture which could not otherwise be ignited by spark ignition. The invention also contemplates a kit providing the above for use in converting water-cooled, diesel burning, compression ignited engines into water-cooled, natural gas burning, spark-ignited engines.
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Gas Research Institute
Nelli Raymond A.
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