Systems and methods for a combined pre-chamber and thermactor air system
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United States of America Patent
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Feb 22, 2022
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N/A
app pub date -
Jan 5, 2021
filing date -
Jan 5, 2021
priority date (Note) -
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Abstract
Methods and systems are provided for reducing emissions during an engine cold start. In one example, a method may include, during emission control device heating, initiating combustion in a cylinder via a spark plug directly coupled to the cylinder and providing secondary air via a turbulent jet ignition system. In this way, an amount of hydrocarbons in feedgas provided to the emission control device prior to the emission control device reaching its light-off temperature may be reduced.
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