The Vaporizing Of Paraffin for High-Speed Motors
(Electric Ignition Type)

ROAD CAR AND TRACTOR MOTORS. 117 of the hood. In the centre of the space enclosed by this cowl-shaped hood, which constitutes a sort of combustion chamber, a rather powerful sparking curtent plays across the points of an igniter, one of which, the positive, extends from the plug z, the negative being secured to the deflector disc, guarding the gas outlet v. The gaseous mixture generated by the partial combustion of a small propor- tion of the vapour generated, consists partly of carbonic oxide, and partly vaporized spray and air, the pro- portions varying according to the amount of air admitted, and to a certain extent also to the intensity of the kindling spark. For instance, with sufficient draught, the gasifier would become a sort of oil furnace, and use up fuel extra- vagantly ; this, as shown, is fed from a supply tank along a pipe k to a float-regulated valve /, to compensate for the amount consumed in the gasifier and carried over as gas and vaporized mixture to the motor. The com- bustible from the gasifier g, togetlier with the necessary supplementary air admitted by the flap-controlled inlet a2, passes to the inlet manifold m of the motor in regulated volume according to the opening of the combined plug- throttle and mixing valve h. No preliminary interiorly or exteriorly applied flame is required before starting up, which is a remarkable feature of this very wide departure from the accepted methods of producing combustible mixture from paraffin, as in pulling over the motor the spräy injected is sufficiently atomized for it to flame and thus at once generate gas and vaporized mixture.