Ignition system

It is also used in modern piston-engined aircraft[citation needed] (even though a battery is present), to avoid the engine relying on an electrical system.

[1] An improved ignition system was invented by Charles Kettering at Delco in the United States and introduced in Cadillac's 1912 cars.

[7] The aftermarket began offering EI that year, with both the AutoLite Electric Transistor 201 and Tung-Sol EI-4 (thyratron capacitive discharge) being available.

Robert C. Hogle, Ford Motor Company, presented the, "Mark II-GT Ignition and Electrical System", Publication #670068, at the SAE Congress, Detroit, Michigan, January 9–13, 1967.

"[8] (This differs from the non-CD Prest-O-Lite system introduced on AMC products in 1972, and made standard equipment for the 1975 model year.

The Fiat Dino was the first production car to come standard with EI in 1968, followed by the Jaguar XJ Series 1[9] in 1971, Chrysler (after a 1971 trial) in 1973 and by Ford and GM in 1975.

[8] In 1967, Prest-O-Lite made a "Black Box" ignition amplifier, intended to take the load off the distributor's breaker points during high rpm runs, which was used by Dodge and Plymouth on their factory Super Stock Coronet and Belvedere drag racers.

The lack of moving parts compared with the mechanical system leads to greater reliability and longer service intervals.

Rockets often employ pyrotechnic devices that place flames across the face of the injector plate, or, alternatively, hypergolic propellants that ignite spontaneously on contact with each other.