Controlled Spark Ignited Flame Kernel Flow

摘要

In some aspects, a spark plug includes a spark gap in an enclosure of the spark plug. The spark plug includes a passage in the interior of the enclosure. During operation of the engine, the passage directs flow through the spark gap, primarily away from a combustion chamber end of the enclosure. The passage can direct flow at a velocity of 5 meters/second or greater.

主权项

1. An igniter for an engine, comprising:
an ignition location in an enclosure of the igniter; and a passage in the interior of the enclosure that during operation of the engine receives flow from outside of the enclosure and directs the flow to the ignition location predominantly away from a combustion chamber end of the enclosure, the igniter adapted to produce a peak flow velocity at the ignition location that is at least 10% of the peak flow velocity into the enclosure.