SECONDARY AIR GUIDE RING FOR IGNITION PLUG

摘要

SECONDARY AIR GUIDE RING FOR IGNITION PLUG A secondary air guide ring for an ignition plug, which is mounted on the outer periphery of a male thread of an ignition plug for mounting the same ignition plug in a cylinder head and provides a hermetical seal between the ignition plug and cylinder head. It is provided with an air guide hole for leading air into the cylinder and also with a check valve mechanism serving to prevent counter flow of gas.