Who is the real inventor of the internal combustion engine?

After Lenova's internal combustion engine was invented, people made many attempts to improve its efficiency. 186 1 year, Otto built a gas engine. 1864, he developed and improved an engine together with the German industrialist Eugen Langen * *, and won the gold medal at the Paris Expo in 1867. From 65438 to 0876, Otto designed and manufactured a single-cylinder horizontal four-stroke internal combustion engine with gas as fuel by using the principle of internal combustion engine of French engineer Rosa, and became the real inventor of internal combustion engine.

1877, Otto obtained the patent of this invention, and this kind of internal combustion engine was widely used soon. When he died, people called the four-stroke cycle system "Otto system" in memory of this great inventor.