Multiple heat-range spark plug

Multiple spark pattern internal combustion initiation device...

Multiple sparking ignition device

Multiple step advance with magnetic trigger rotor

Multipoint ignition device

Optically switched high voltage distributor

Otto engine ignition pulse generator and distributor

Performing spark plug

Personal watercraft and engine mounted in personal watercraft

Photo electric ignition system

Piston engine with selectable firing order

Piston with integrated spark electrode

Plasma jet ignition plug and ignition device for the same

Plug cap mount structure for engine

Plug-in-piston assembly and method of using the same

Poppet valve for an internal combustion engine

Pressurized ignition system

Pulse generating and distributing circuits for internal combusti

Pulse ignition distributor

Quick change plug