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Useful Alternative Carburetter for Ford Vans.

12th October 1916
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Page 12, 12th October 1916 — Useful Alternative Carburetter for Ford Vans.
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The air-friction carburetter, a drawing of which we reproduce on this page, is noted in the United States, wheoce it emanates, for its peculiar capability of vaporizing heavy fuels.. This property is principally owing to the special formation arid the shape of the jet, which, instead of being a small hole or series of holes, is the space between the edges of two flat discs, the distance between which can be regulated to a nicety.

The carburetter is made to suit any type of engine, and any size. It came.under our editorial notice owing to Mr. Oakland, one of the principals of Rejax, Ltd., 37-38, Broad Street, Golden Square, London, W., which company is the sole agent for the carburetter in this country, stating that he could 'satisfactorily use mixtures of petrol and paraffin in e40 which the latter fuel predominated, with success on. his Flerd car, which he observed was fitted with the air-friction carburetter. The capability of running on such mixtures as the one named is an important property in any engine. If it can be induced by the addition of any carburetter, then the proposition as to whether the carburetter should be purchased ,is worthy of consideration. . We, therefore, interviewed Mr. Oakland, were treated to a test run on his car, using petrol and paraffin in the proportion of one of petrol to two of paraffin—the latter fuel, by the way, we purchased ourselves from a neighbouring oil shop—we did Borne bill-climbing, and made some rough-and-ready tests of the efficiency of the car with this unaccustomed fuel, which behaved in every Way satisfactorily. "

The carburetter itself is a compact, well-designedomponent, as a reference to our illustration will how. The fuel enters past the needle which is shown in the right of our illustration, flowing thence into he bowl underneath the float, and passing up the entral hole underneath the vertical needle. It is Irawn by suctiou between the two discs marked on he illustration, and thence past the throttle valve to he induction pipe.

This special-formed jet has two good features, first of all of presenting at once a large surface to the onorning air, and secondly, the jet as a whole is at ight angles to the direction of flow of the main air ,upply. This latter should be hot, and receives heat, n the case of the standard carburetter, from a muff m the exhaust pipe.

The spring-controlled choke tube, it will be noticed, vhile restricting the passage past the jet for starting imposes, automatically lifts as the engine speed inTea,ses, allowing a greater proportion of air to pass. he limits of motion of this sliding sleeve may be ;ontrolled from the outside by means of a screw. The ffect of using this screw is either that of enriching Of weakening the mixture throughout the whole of ts range. It does not interfere with the ordinary iutoma.tie closing of the choke tube for starting pur

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Locations: Oakland, London

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