| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil mist separator element which hardly causes positional variation of fibers due to the influence of gas flow, density irregularity of fiber layers due to mutual adhesion among fibers, the opening among fibers or the like, stabilizes the efficiency of oil mist separation and hardly deteriorates the efficiency over a long period. SOLUTION: The tubular oil mist separator element has a three-layered structure comprising at least an upper stream layer, a middle stream layer and a down stream layer. Therein, the upper stream layer is composed of nonwoven fabric made of polyester composite fibers in which the connection points of the fibers are thermally bonded, the succeeding middle layer is composed of glass fiber assembly and the down stream layer is composed of the nonwoven fabric made of the polyester composite fibers. COPYRIGHT: (C)2004,JPO
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