A Simple and Effective Air Cleaner.
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THE necessity for any form of air cleaner is sometimes questioned -when vehicles are destined to work on the comparatively dustless roads of this country. It must, however, be remembered that although the roads themselves may give off no dust, dust and grit are continually blowing from the fields on to the roads.
In the case of commercial vehicles, the ingress of dust is more likely than in the case of the private ear, as the former have often to work in quarries and sand pits and at the site of building excavations, where grit and (last are plentiful.
Having regard to these facts, it may be well for owners of commercial motors to consider the adoption of, some simple , form of air cleaner, which requires practically no attention, as no one, however much they desire simplicity, can contend that the ingress of even a small quantity of grit can do any good in an engine ; even one particle of
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grit of fair size may, when stuck into a piston, cause serious scoring of the cylinder.
Having come to the conclusion that dust should be kept out, it may be well for fleet owners to consider the merits of the latest device offered to the public for this purpose—the Simms Vortex air cleaner.
The principle on which this device works is extremely simple, as it is merely the sudden diversion of the air from a straight path to a semi-circular one, the sharp bend causing all particles that are heavier than air to tend to continue in a straight path, such Partides having a greater inertia than air
owing to their weight. This causes them to strike the curved wall of the device and to be precipitated downwards into a cup that may contain grease or oil. This cup or container can be instantly removed for cleaning purposes, as it is only held in place by the spring shown in our illustration.
It will be seen that this device offers the minimum resistance to air entering the cylinder.