Ignition systems

device that generates sparks in internal combustion engines

electric spark system to ignite a fuel-air mixture

automobile fuel ignition system component

thumb|Distributor (side view) with input shaft (bottom) and vacuum advance unit (top right) thumb|Ignition system diagram with distributor at the top right

small engine ignition system

type of electrical switch

electricity-producing device

the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke

system for spark-ignition engines

Hot-wiring is a method of bypassing a motor vehicle's ignition switch and thus starting it without the key. It is often utilized in motor vehicle theft. However, a legitimate vehicle owner who has lost a vehicle key or is starting a vehicle with an inoperable ignition switch (e.g. in run-down old cars) may also use the process.

Device on early internal-combustion engines