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In page Fuel injection:

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In 1898, German company Deutz AG started producing four-stroke petrol stationary engines[9] with manifold injection.[citation needed] The 1906 Antoinette 8V aircraft engine (the world's first V8 engine) was another early four-stroke engine that used manifold injection. The first petrol engine with direct-injection was a two-stroke aircraft engine designed by Otto Mader in 1916.[10] Another early spark-ignition engine to use direct-injection was the 1925 Hesselman engine, designed by Swedish engineer Jonas Hesselman.[11][12] This engine could run on a variety of fuels (such as oil, kerosene, petrol or diesel oil)[13] and used a stratified charge principle whereby fuel is injected towards the end of the compression stroke, then ignited with a spark plug.