Natural Gas/Diesel Dual Fueling of a Prechamber Type Diesel Engine

The diesel engine, or the compression ignition engine, was invented by Dr. Rudolph Diesel, who patented the device in 1892. Diesel's patent covered the use of coal dust as a fuel, but also included other solid, liquid, or gaseous duels. Some of the fuels tried during the initial development of this engine included coal-tar mixtures, blends of coal dust and oil, and petroleum-based products.