| 摘要 |
PCT No. PCT/EP96/04183 Sec. 371 Date Mar. 24, 1998 Sec. 102(e) Date Mar. 24, 1998 PCT Filed Sep. 25, 1996 PCT Pub. No. WO97/11833 PCT Pub. Date Apr. 3, 1997The geometry of a flow channel (1) can be varied within wide limits if at least one wall of the flow channel (1) takes the form of a sheet stack (2) which is pushed from the rear into the channel to a greater or lesser extent by means of adjusters (7). The adjustment may be effected either uniformly over the entire width of the flow channel (1) or only locally at certain points thereof. It is thus possible, while a medium is passing through the flow channel (1), to alter from outside the flow resistance either of the entire channel or only at certain points and thus alter the entire mass flow or the mass flow distribution as desired. New processing possibilities are given by the greater flexibility of the sheet stack (2) in relation to solid channel walls. |
