| 摘要 |
The invention relates to a sucking means (10, 20, 30, 40, 50), preferably vortex generator or tornado suction means, preferably for a suction hood, a) which pulls the air into a suction hood (1, 2, 3, 4, 5) by generating an at least substantially circular, cyclone, vortex or helix movement, b) wherein the sucking means (10, 20, 30, 40, 50) comprises a, preferably ring shaped, area (17, 27, 37, 47, 57) with at least substantially tangential channels (172, 272, 372, 472) and/or channels (172, 272, 372, 472) with a tangential component which are separated from each other by separating elements (171), preferably blades, for generating the at least substantially circular, cyclone, vortex or helix movement, a suction hood and a method for generating an air suction by means of a suction hood. |
