Fan coupling
Fan drive unit
Fan drive with a fluid and mechanical coupling
Ferroresonant capacitor discharge ignition system
Fluid actuated clutch for engine accessory drive
Fluid flow control device for engine spark timing control
Formation of electric field discharges
Free piston engine ignition apparatus
Free-running capacitive discharge ignition system with spark...
Friction clutch
Fuel economizer for internal combustion engines
Fuel fill based spark knock control
Fuel injection timing signal and crank angle signal...