2105. MALIN, J. B. (The Texas Co.). Engine Generation of Synthesis Gas. United States Patent 2,543,791, Mar. 6, 1951; appl. filed Aug. 25, 1949, Serial No. 112,326; 12 claims (Cl. 48-212).

Process consists of separately introducing hydrocarbons and O₂ reactants in relatively pure condition into the combustion zone of an engine, preferably during movement of the piston away from the cylinder head in consecutive order so that substantial admission of the hydrocarbon takes place before admission to the free O₂. During withdrawal of the product synthesis gas, steam is injected to effect substantial purging of the gas from the combustion zone, thereby materially improving the volumetric efficiency of the engine. Consecutive admission of the reactants is claimed to overcome irregular operation of the engine, such as backfiring, detonation, and preignition.