Patent ID: 6668810
Filing Date: 2003-12-30
Classification: F02P

Abstract:
An ignition coil assembly for direct mounting onto a spark plug and for providing an electrical connection with a spark plug terminal of the spark plug, the ignition coil assembly comprising:a body having a spark plug boot section, the boot section having an interior longitudinally extending passageway opening at an orifice, the body having a coil terminal extending into the boot section passageway; a high voltage connection coil spring placed within the boot section passageway through the orifice, the spring having a center section having multiple turns of wire and having two opposing end segments wrapped at a smaller radius than the center section, the spring end segments contacting the spark plug terminal and the coil terminal when the ignition coil assembly is installed on the spark plug with the spark plug extending inside the passageway and compressing the spring; and retainer means for retaining the spring within the boot passageway when the ignition coil assembly is not installed on the spark plug, wherein said retainer means includes at least one rib extending radially inwardly within the passageway and frictionally engaging the spring when the spring is in the passageway.