抄録
A mathematical model of an air filter which is controlled by utilizing a pressure switch or a timer is formulated on the basis of some simple postulates. The dust-holding capacity, the renewal period, the fluctuation of pressure drop, the life time of a finite filter medium, etc., are numerically calculated for a wide range of practical conditions, and the merit of partial renewal, the comparison between pressure switch and timer types and the effect of length of medium on the performance of the air filter, etc., are discussed.These results are shown to be in good agreement with Higuchi''s experimental data.
