Editing Ignition system (section)

=== Distributor-based systems ===
[[File:Distributor cap of AMC inline-6, underside.jpg|thumb|upright|Rotor contacts inside distributor cap]]
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An improved ignition system was invented by [[Charles Kettering]] at Delco in the United States and introduced in Cadillac's 1912 cars.<ref>{{cite web |title=Charles F. Kettering, inventor of electric self-starter, is born |url=https://www.history.com/this-day-in-history/charles-f-kettering-inventor-of-electric-self-starter-is-born |website=HISTORY |language=en}}</ref> The Kettering ignition system consisted of a single ignition coil, breaker points, a [[capacitor]] (to prevent the points from arcing at break) and a [[distributor]] (to direct the electricity from the ignition coil to the correct cylinder).<ref>{{cite web |last1=Kettering |first1=Charles F. |title=Ignition apparatus for explosion-motors |url=https://patents.google.com/patent/US1037491 |access-date=1 May 2023 |date=3 September 1912}}</ref><ref>{{cite web |last1=Kettering |first1=Charles F. |title=Ignition system |url=https://patents.google.com/patent/US1037492 |access-date=1 May 2023 |date=3 September 1912}}</ref><ref>{{cite web |last1=Kettering |first1=Charles F. |title=Ignition system |url=https://patents.google.com/patent/US1223180 |access-date=1 May 2023 |date=17 April 1917}}</ref> The Kettering system became the primary ignition system for many years in the automotive industry<ref>{{cite web |last1=Hawthorne |first1=John A. |title=Ignition system |url=https://patents.google.com/patent/US3327165 |access-date=1 May 2023 |date=20 June 1967}}</ref> due to its lower cost and relative simplicity.{{citation needed|date=April 2023}}
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