Who was cummins the inventor of engine?
There's no single inventor of the Cummins engine. Cummins Inc. is a company founded by Clessie Cummins. He didn't invent the diesel engine itself (that credit goes to Rudolf Diesel), but he significantly improved diesel engine design and commercialized them, making Cummins a leading manufacturer of diesel engines. So, while Clessie Cummins wasn't the *inventor* of the engine type, he was crucial to its widespread adoption and the success of the Cummins company.