| 摘要 |
PCT No. PCT/DE89/00495 Sec. 371 Date Apr. 2, 1990 Sec. 102(e) Date Apr. 2, 1990 PCT Filed Jul. 29, 1989 PCT Pub. No. WO90/01362 PCT Pub. Date Feb. 22, 1990.Described is a filter apparatus (10) which is designed for filtering solid, liquid or gaseous, electrically uncharged or electrically charged particles out of a gaseous flow medium as it flows through the filter apparatus (10). The filter apparatus (10) has filter elements (18) which are spaced from each other in the direction of flow of the gaseous medium to the apparatus. Each filter element (18) has a plate-like carrier element (20, 46, 48; 64) and a substrate (22) which are provided with spaced-apart openings (26). The substrate (22) serves for the storage of a filter medium. Each opening (26) in the filter element (18) has a sleeve-like guide element (24) for the flow medium, wherein the guide element (24) extends around the edge of the corresponding opening (26). The guide elements (26) which project at least at the upstream side prevent filter medium at the individual substrates (22) from being unintentionally entrained through the openings (26), even at high flow rates in respect of the flow medium. |
