| 摘要 |
filtration of liquids and gases, applicable for fine cleaning of liquids or gases. SUBSTANCE: the filter element has a stiff perforated framework with a nonwoven ribbon of polymeric fibers with an overlap of the adjacent wraps, making up 1 to 50% of the ribbon width, placed on a spiral path on its surface. The fibers in the ribbon are fastened to one another in the points of contact by autohesion gluing, the quantity of fastened fibers decreases from the center to the periphery. EFFECT: enhanced reliability in operation. 2 dwg
|
