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Show CLEANERS USEFUL ON AUTOMOBILES Small Device Removes Dirt and Dust Before Reaching Reach-ing Carburetor. (Bv H o. KAMRATH Research Enslner ) j Stirring up a whirl of dust as he j approached swiftly on a gravel road, the motorist came to" a stop In front of a country store. Ills car was cov-: cov-: ered with dust there had been no j rain fur two wet'ks. I "Enough dust to Injure your en- gine." the venerable storekeeper, who had come out, remarked. "No," the motorist replied as he started nway. "air cleaner takes care of that."' Something New. "Air cleaner?" the storekeeper pon-' pon-' dervd Inquiringly, turning to me. j 'Yes." I replied, "arelit you familiar I with air cleaners? Car builders for ' wvcral years have bei n using them to prolong the engine's life." i "No." the storekeeper admitted, "but ! I do know from what I've seen and ' beard that cars nowadays go very ! much farther before II Is necessary to ; overhaul the e:iglne I can remember ; when overhauling was almost a week- ly rout ine." So being on my vacation and hnv-j hnv-j tng plenty of time. I told him much , about this Interesting engineering de- velopment. "The air cleaner,- I explained, "Is a small device that attaches to the carburetor. It removes dirt and dust ! before It reaches the carburetor and ' docs Us work so thoroughly that dam-j dam-j age from this cause Is negligible. However, If the dirt and dust were permilted to enter the engine. It would form on the cylinder walls and becoming becom-ing mixed with the lubricating oil. perioua wiMir would result. Two Kindt of Cleanen. "Two kinds of air cleaners are used on automobiles, the centrifugal type and the 'oil wetted." In the former, dirt and dust are separated from the air by means of centrifugal force, the principle being exactly the same as that used In the well known cream separator. The latter type if n circular cir-cular can tilled with thin copper wire mesh, which Is wolt-d with nil. The dust In tlie Inronilnc air adheres to I the oily surface nnd Is thus pro-vented pro-vented from entering the engine. ,, "liecently ei.glueers Inspected nn automobile that bad been run 'Ji',.(HK) miles No valves had been replaced or ground, no new rings or pistons bad been put In, not at, engine bearing had been taken up. None of these things wu necessary; no bearing knocks; o'l and gasoline mileage satisfactory. satis-factory. In fact Hie engine was Just nicely run In. The air cleaner, together to-gether with the oil liller, made this ! possible." |