Abstract
1. By means of the annexation of guide vane to the element tube and the replacement of bended wall above the oil reservior with the rightangled wall, the capacity of the cleaner was increased by 13.6 percent.
2. According to the comparative test, the cleaner of the Kohler engine of Bolens power hoe, especially its element, proved to have excellent capacity.
3. Discussion on the moving mechanism of element, with special reference to “bridge formation, ” particle dynamics, and the ununiformity of element texture is given.
4. Functional relation of the general factors with refererence to air flow through the filtration layer is described.
5. Description on the cleaner resistance consisting of the resistance of dust-laden layer and the inner resistance of cleaner is given.
6. “Scouring effect” and “plugging” at the cleaner element which are liable to occur at the first stage of the constant pressure filtration are concerned.
7. Contrifugal effect resulting from the interfial resistance of the particle to change its direction of travel in conformance with the streamlines of the flowing air at the bottom of the cleaner is stated.
