| 摘要 |
THE INVENTION PROVIDES A HEAT-RESISTANT AND REGENERATABLE FILTER BODY (1) WHICH CAN PREFERABLY BE COATED WITH CATALYTICALLY ACTIVE MATERIAL, FOR RETAINING PARTICLES FROM A GAS FLOW (2) FLOWING THROUGH THE FILTER BODY (1), WITH FLOW PATHS (10) FOR THE GAS FLOW (2), WHEREIN THE FLOW PATHS (10) ARE SEPARATED FROM EACH OTHER AND AT LEAST A FIRST FILTER STAGE (6) AND A SECOND FINER FILTER STAGE (7) ARE ARRANGED IN SUCCESSION IN THE FLOW DIRECTION IN THE RESPECTIVE FLOW PATHS (10). THERE IS ALSO PROVIDED A PROCESS FOR THE PRODUCTION OF A HEAT-RESISTANT AND REGENERATABLE FILTER BODY (1) WHICH SERVES TO RETAIN PARTICLES, IN PARTICULAR SOOT PARTICLES, FROM A GAS FLOW (2) FLOWING THROUGH THE FILTER BODY (1), PREFERABLY FROM AN INTERNAL COMBUSTION ENGINE, WHEREIN THE FILTER BODY (1) HAS PREDETERMINED FLOW PATHS (10), WITH THE FOLLOWING FEATURES :@- IN THE PRODUCTION PROCEDURE FOR THE FLOW PATHS (10) IN THE FILTER BODY (1) AT LEAST A FIRST FILTER STAGE (6) AND A SECOND FINER FILTER STAGE ARE ARRANGED SIMULTANEOUSLY IN A FLOW PATH (10),@- WHEREIN THE FIRST AND SECOND FILTER STAGE (7), AS VIEWED IN A FLOW DIRECTION THROUGH THE FILTER BODY (1), COMES TO LIE IN SUCCESSION ON THE FLOW PATH (10).
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