Who have made outstanding contributions to the birth and development of internal combustion engines?

First of all, Karl Ben Ci made the greatest contribution to gasoline engines, that is, he applied gasoline engines to automobiles and built the first automobile in the world. Then there was another man named Cummins, an American. All the diesel engines we use now have his technical patents, and Cummins developed the diesel engines in a more practical direction. Especially in the fifties and sixties, Cummins diesel engines existed like gods, and were used in trucks and pickups. Up to now, a large part of diesel engines in China are also developed from Cummins diesel engines. Typing is not easy, hope to adopt it.