SECRET OF NEW BRITISH ENGINE.

Bruce Herald, Volume LV, Issue 66, 28 August 1919, Page 5

SECRET OF NEW BRITISH ENGINE.

STEAM AND PETROL COMBINED.

A secret of engineering which has caused a sensation in the technical world was disclosed to a gathering of scientists and engineers at the Society of Arts. It was the new "Still" internal combustion engine, the result of eight years' research by Mr William Joseph Still, and consists of a double force engine—using petrol and steam—which revolutionises the commercial utility of the in-' tcrnal combustion engine. By raising steam from the heat at present lost in the water jacket and exhaust, and then expanding it in the engine at the back of the main piston—one stroke for the steam and one stroke for combustion pressure—enormous economy is effected.

An expert who has investigated the capabilities of the engine states that it shows nearly a 10 per cent, increased efficiency on the Diesel engine, now considered to be the most favourable of all the internal combustion types. More than 50 per cent, fuel energy is recovered. - The claims made for the new engine are that it is capable of using any liquid or gaseous fuel; recovers the heat, which passes through the combustion cylinder; increases engine power and reduces fuel consumption; six times as good as the present rail locomotives; by "self-starting" the efficiency is raised from 30 to 42 per cent.