Bernard Cournil was a French vehicle maker who progressed from improving other people’s vehicles to manufacturing his own during the late 1950s. Rights to manufacture his design were subsequently held
Cournil 4x4 fitted with an earth auger
A 1983 UMM Entrepreneur, nearly identical to a Cournil of the period
Cournil's design later turned up as a Portuguese UMM vehicle.
A diesel engine is an internal combustion engine in which ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engin
Rudolf Diesel's 1893 patent on a rational heat motor
Diesel's second prototype. It is a modification of the first experimental engine. On 17 February 1894, this engine ran under its own power for the first time. Effective efficiency 16.6% Fuel consumption 519 g·kW−1·h−1
First fully functional diesel engine, designed by Imanuel Lauster, built from scratch, and finished by October 1896. Rated power 13.1 kW Effective efficiency 26.2% Fuel consumption 324 g·kW−1·h−1.
An MAN DM trunk piston diesel engine built in 1906. The MAN DM series is considered to be one of the first commercially successful diesel engines.