Motor Road Transport For Commercial Purposes
(Liquid Fuel, Steam, Electricity)

ECONOMIES : FUEL 167 which. is placed within a primary and movable mixing cone. Concentrically mounted within this cone is a short upright tube which surrounds the upper end of the jet and extends above it, enabling part of the hot air supply to pass up inside the tube and impinge on the fuel as it emerges from the top of the nozzle. The other part of the supply goes up through the annular space between the inside wall of the movable mixing cone and the outside of the tube, and mingles with the mixture of fuel and air as it leaves the top of the tube inside the cone. This mixture then emerges through the opening in the top of the cone into the main atomizing and mixing chamber. Here lateral ports—self-regulated—■ admit cold air in such. a way that the first currents may meet the mixture in a direction normal to it, and the second in a reverse direction. In this way, while dilution is permitted, direct contact of the liquid fuel with the walls of the chamber—a most important point—is greatly minimized until the condition of a substantially permanent gas has been attained. A sleeve adapted to reciprocate vertically in the casing of the chamber, and carrying a central circular baffle, is controlled in one direction by the suction of the engine, and in the opposite way by gravity or by action of a spring. By means of this sleeve automatic regulation of the cold air ports, the fuel supply from the float chamber to the nozzle, and also variation of temperature are obtained. The normal number of degrees used in the case in point when running on paraffin was about 800 degrees F. Result of a Practical Test. A road test was undertaken with this device fit ted to a car of American make, and supplied with a four