| 摘要 |
A filter membrane has at its flow in side a first metal fibre web. It has at least two metal fibre layers, a fine and at least one coarser fibre layer. The fine fibre layer is located at the flow in side of the filter membrane and the at least one coarser fibre layer is located downstream of the fine fibre layer. The filter membrane is comprising at its flow out side, a stack of one or more first two-dimensional metal structures with constant and regular openings. The filter membrane is comprising at least one set formed by a second metal fibre web and a stack of one or more second two-dimensional metal structure with constant and regular openings; the at least one set is provided in between the stack of one or more two-dimensional metal structures that are having constant and regular openings, and the first metal fibre web. A second metal fibre web is in direct contact with the stack of one or more first two- dimensional metal structures. One of the stacks of one or more second two-dimensional metal structure with constant and regular openings is in direct contact with the first metal fibre web, at the side of the at least one coarser fibre layer. The one or more first two-dimensional metal structures, the first metal fibre web, and the at least one set of second metal fibre web and one or more second two-dimensional metal structures; are all connected to each other by means of metallic bonds. |
