Insulator Nose

SPARK PLUG INSULATOR NOSE

THE MOST IMPORTANT PART OF THE INSULATOR

•The nose length predetemines heat range of the spark plug

(Short insulator noses are usually "colder" plugs, while longer insulator noses are usually "hotter" plugs.)

•The nose shape determines the speed of the start-up to the working cycle temperature

•The nose shape affects the mechanical strength of the insulator

•Thermal conductivity of the insulator nose fundamentally affects the balance of heat intake and conduction