Studies on the dust proof faculties of air cleaner on farm engines (Part 1)

On the basic dust proof faculties of cleaner elements

Abstract

When an engine is moved under extremely dusty conditions, bulk of air-borne dust are conducted into a cylinder through an air cleaner and result in the damage of the engine. In this paper is given an account of the results of investigation on the dustproof faculties of the cleaner of farm engines.
1. The percentage of dust proof faculty diminishes with the increase of r. p. m and load duty, but much varies with the kind of elements (dust absorbing substances of cleaner) and the moving condition of engine.
2. The degree of negative suction pressure is markedly promoted with the lapse of moving time. This reveals the increase of resistance of elemen or filter due to clogging with air-borne dust. In proportion to the increase of the cleaner resistance increases to fuel consumption ratio.
Therefore, the frequent servicing of cleaner element is required to remove air-borne dust.
3. It is desirable that much dust is repulsed at the entrance of cleaner element. In this connection it is note worthy that the elastic materials such as wire-wool or sponge-gourd are more repulsive, whereas the pliable ones such as wooden-dross or hemppalm are less repulsive.