An Easy-starting and Economizing Device
Page 43
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DESIGNED to improve carburation L./generally, a device with certain interesting features is marketed by Induetair Vaporiser, Ltd., 21, Park Lane, Cardiff. It has three components, a heater, an extra-air valve and a mixer. The complete unit fits between the flanges of the *carburetter and the induction pipe.
The mixer is a simple sheet-metal pressing with stationary radial vanes which give the mixture a turbulent motion, thus ensuring a more thorough atomization and inter-mixing of the liquid and air.
Of flange shape, the body of the device is about f in. thick and carries the automatic valve and the two remaining components. The heater is a well-insulated and mechanically sound electrical element, encased in a plated copper tube, set diametrically across the induction passage. At each end
there is a terminal. These are con
nected to the electrical system of the vehicle by ammured cables and a special tumbler switch that includes a fuse.
So far as the extra-air valve is concerned the chief novelty is that although it is automatic, it operates in the opposite way to that commonly adopted for such devices. Inductionpipe suction closes this valve. Consequently, when the throttle is nearly shut, no extra air is admitted to upset the tick-over. A weaker mixture is provided for economy when the engine is pulling, because then the depression in the induction pipe is lower and the automatic valve opens.
If the heater be switched on a minute or so before starting, this operation is made easier. The consumption of current is about the same as that of a headlamp. There are twosizes. Model S costs 30s., complete with switch and armoured cables, whilst Model L costs, with similar equipment, 55s.