people were aware of the fact. The motor was built for ordinary oils, and without any modification was run on vegetable oil. I have recently repeated these experiments on a large scale with full success and entire confirmation of the results formerly obtained." See also History of the internal combustion engine List of German inventors and discoverers List of people who disappeared mysteriously at sea List of unsolved deaths Rudolf-Diesel-Medaille, German award in memory of Rudolf Diesel References Works Rudolf Diesel: Theorie und Konstruktion eines rationellen Wärmemotors zum Ersatz der Dampfmaschine und der heute bekannten Verbrennungsmotoren. Springer, Berlin, 1893, () Rudolf Diesel: Die Entstehung des Dieselmotors. Springer, Berlin 1913. Rudolf Diesel: Solidarismus: Natürliche wirtschaftliche Erlösung des Menschen, Oldenbourg, Berlin/München 1903. (PDF) Bibliography . (C. Lyle Cummins, Jr. was the son of Clessie Cummins, founder of the Cummins Company). External links Rudolf Diesel at ThoughtCo Historical background of R Diesel mystery 1858 births 1910s missing person cases 1913 deaths 19th-century German engineers 19th-century German inventors 20th-century German engineers Businesspeople from Augsburg German automotive pioneers Engineers from Bavaria Formerly missing people Fluid dynamicists People associated with the internal combustion engine People who died at sea Technical University of Munich alumni Unsolved deaths