Alphonse Beau de Rochas

From Wikipedia, the free encyclopedia
Alphonse Eugène Beau de Rochas
Alphonse Beau de Rochas
Born(1815-04-09)9 April 1815
Digne-les-Bains, Alpes-de-Haute-Provence
Died27 March 1893(1893-03-27) (aged 77)
Known forFour-stroke internal-combustion engine

Alphonse Eugène Beau de Rochas (9 April 1815, Digne-les-Bains, Alpes-de-Haute-Provence – 27 March 1893, Vincennes) was a French engineer. He was the first to patent the four-stroke engine in 1862, but he did not build one and the idea was subsequently developed by Nicolaus Otto and other engineers.[1]


  1. ^ "Alphonse Beau de Rochas". Encyclopædia Britannica. Retrieved 14 June 2022.