In 1860 Belgian Etienne Lenoir patented a gas engine fuelled by coal gas.
Paul Haenlein employed a four-cylinder Lenoir engine producing 5 hp in his airship at Brunn in 1872.
In 1860 Belgian Etienne Lenoir patented a gas engine fuelled by coal gas.
Paul Haenlein employed a four-cylinder Lenoir engine producing 5 hp in his airship at Brunn in 1872.